diff --git a/cmd/server/main.go b/cmd/server/main.go
index 5fea9b8..8095902 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -44,7 +44,7 @@ func main() {
 	}))
 
 	logger.Info("certctl server starting",
-		"version", "0.1.0",
+		"version", "2.0.7",
 		"server_host", cfg.Server.Host,
 		"server_port", cfg.Server.Port)
 
diff --git a/web/src/components/Layout.tsx b/web/src/components/Layout.tsx
index b081021..0860710 100644
--- a/web/src/components/Layout.tsx
+++ b/web/src/components/Layout.tsx
@@ -69,7 +69,7 @@ export default function Layout() {
         </nav>
 
         <div className="px-5 py-3 border-t border-white/10 flex items-center justify-between">
-          <span className="text-[10px] text-brand-300/60 font-mono">v2.0.5</span>
+          <span className="text-[10px] text-brand-300/60 font-mono">v2.0.7</span>
           {authRequired && (
             <button
               onClick={logout}
diff --git a/web/src/pages/AgentGroupsPage.tsx b/web/src/pages/AgentGroupsPage.tsx
index dba3bb9..1dbe9d3 100644
--- a/web/src/pages/AgentGroupsPage.tsx
+++ b/web/src/pages/AgentGroupsPage.tsx
@@ -1,5 +1,6 @@
+import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getAgentGroups, deleteAgentGroup } from '../api/client';
+import { getAgentGroups, deleteAgentGroup, createAgentGroup } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -8,8 +9,148 @@ import ErrorState from '../components/ErrorState';
 import { formatDateTime } from '../api/utils';
 import type { AgentGroup } from '../api/types';
 
+interface CreateAgentGroupModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSuccess: () => void;
+  isLoading: boolean;
+  error: string | null;
+}
+
+function CreateAgentGroupModal({ isOpen, onClose, onSuccess, isLoading, error }: CreateAgentGroupModalProps) {
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+  const [matchOs, setMatchOs] = useState('');
+  const [matchArch, setMatchArch] = useState('');
+  const [matchIpCidr, setMatchIpCidr] = useState('');
+  const [matchVersion, setMatchVersion] = useState('');
+  const [enabled, setEnabled] = useState(true);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!name.trim()) return;
+    try {
+      await createAgentGroup({
+        name: name.trim(),
+        description: description.trim(),
+        match_os: matchOs.trim() || undefined,
+        match_architecture: matchArch.trim() || undefined,
+        match_ip_cidr: matchIpCidr.trim() || undefined,
+        match_version: matchVersion.trim() || undefined,
+        enabled,
+      });
+      setName('');
+      setDescription('');
+      setMatchOs('');
+      setMatchArch('');
+      setMatchIpCidr('');
+      setMatchVersion('');
+      setEnabled(true);
+      onSuccess();
+    } catch (err) {
+      console.error('Create agent group error:', err);
+    }
+  };
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50" onClick={onClose}>
+      <div className="bg-surface border border-surface-border rounded p-5 w-full max-w-md shadow-xl" onClick={e => e.stopPropagation()}>
+        <h2 className="text-lg font-semibold text-ink mb-4">Create Agent Group</h2>
+        {error && <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded text-sm text-red-700">{error}</div>}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Name *</label>
+            <input
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="e.g., Production Linux Servers"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Description</label>
+            <textarea
+              value={description}
+              onChange={e => setDescription(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="Optional description"
+              rows={2}
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Match OS</label>
+            <input
+              value={matchOs}
+              onChange={e => setMatchOs(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="linux"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Match Architecture</label>
+            <input
+              value={matchArch}
+              onChange={e => setMatchArch(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="amd64"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Match IP CIDR</label>
+            <input
+              value={matchIpCidr}
+              onChange={e => setMatchIpCidr(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="10.0.0.0/8"
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Match Version</label>
+            <input
+              value={matchVersion}
+              onChange={e => setMatchVersion(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="2.0.*"
+            />
+          </div>
+          <div className="flex items-center gap-2">
+            <input
+              type="checkbox"
+              id="enabled"
+              checked={enabled}
+              onChange={e => setEnabled(e.target.checked)}
+              className="w-4 h-4"
+            />
+            <label htmlFor="enabled" className="text-sm text-ink">Enabled</label>
+          </div>
+          <div className="flex gap-2 pt-4">
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="flex-1 btn btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isLoading ? 'Creating...' : 'Create Group'}
+            </button>
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex-1 btn btn-ghost"
+            >
+              Cancel
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
+
 export default function AgentGroupsPage() {
   const queryClient = useQueryClient();
+  const [showCreate, setShowCreate] = useState(false);
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['agent-groups'],
@@ -21,6 +162,14 @@ export default function AgentGroupsPage() {
     onSuccess: () => queryClient.invalidateQueries({ queryKey: ['agent-groups'] }),
   });
 
+  const createMutation = useMutation({
+    mutationFn: createAgentGroup,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['agent-groups'] });
+      setShowCreate(false);
+    },
+  });
+
   const columns: Column<AgentGroup>[] = [
     {
       key: 'name',
@@ -81,7 +230,15 @@ export default function AgentGroupsPage() {
 
   return (
     <>
-      <PageHeader title="Agent Groups" subtitle={data ? `${data.total} groups` : undefined} />
+      <PageHeader
+        title="Agent Groups"
+        subtitle={data ? `${data.total} groups` : undefined}
+        action={
+          <button onClick={() => setShowCreate(true)} className="btn btn-primary">
+            + New Group
+          </button>
+        }
+      />
       <div className="flex-1 overflow-y-auto">
         {error ? (
           <ErrorState error={error as Error} onRetry={() => refetch()} />
@@ -89,6 +246,13 @@ export default function AgentGroupsPage() {
           <DataTable columns={columns} data={data?.data || []} isLoading={isLoading} emptyMessage="No agent groups configured" />
         )}
       </div>
+      <CreateAgentGroupModal
+        isOpen={showCreate}
+        onClose={() => setShowCreate(false)}
+        onSuccess={() => {}}
+        isLoading={createMutation.isPending}
+        error={createMutation.error ? (createMutation.error as Error).message : null}
+      />
     </>
   );
 }
diff --git a/web/src/pages/IssuersPage.tsx b/web/src/pages/IssuersPage.tsx
index 945e998..c3523f2 100644
--- a/web/src/pages/IssuersPage.tsx
+++ b/web/src/pages/IssuersPage.tsx
@@ -1,6 +1,6 @@
 import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getIssuers, testIssuerConnection, deleteIssuer } from '../api/client';
+import { getIssuers, testIssuerConnection, deleteIssuer, createIssuer } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -12,13 +12,79 @@ import type { Issuer } from '../api/types';
 const typeLabels: Record<string, string> = {
   local_ca: 'Local CA',
   acme: 'ACME',
+  stepca: 'step-ca',
+  openssl: 'OpenSSL/Custom',
   vault: 'Vault PKI',
   manual: 'Manual',
 };
 
+interface IssuerConfigField {
+  key: string;
+  label: string;
+  placeholder?: string;
+  required: boolean;
+  type?: string;
+  options?: string[];
+  defaultValue?: string;
+}
+
+interface IssuerTypeConfig {
+  id: string;
+  name: string;
+  description: string;
+  configFields: IssuerConfigField[];
+}
+
+const issuerTypes: IssuerTypeConfig[] = [
+  {
+    id: 'local_ca',
+    name: 'Local CA',
+    description: 'Self-signed or subordinate CA for certificate issuance',
+    configFields: [
+      { key: 'ca_cert_path', label: 'CA Cert Path (optional)', placeholder: '/path/to/ca.crt', required: false },
+      { key: 'ca_key_path', label: 'CA Key Path (optional)', placeholder: '/path/to/ca.key', required: false },
+    ],
+  },
+  {
+    id: 'acme',
+    name: 'ACME',
+    description: "Let's Encrypt or other ACME-compatible CA",
+    configFields: [
+      { key: 'directory_url', label: 'Directory URL', placeholder: 'https://acme-v02.api.letsencrypt.org/directory', required: true },
+      { key: 'email', label: 'Email', placeholder: 'admin@example.com', required: true },
+      { key: 'challenge_type', label: 'Challenge Type', type: 'select', options: ['http-01', 'dns-01', 'dns-persist-01'], required: false, defaultValue: 'http-01' },
+    ],
+  },
+  {
+    id: 'stepca',
+    name: 'step-ca',
+    description: 'Smallstep private CA',
+    configFields: [
+      { key: 'ca_url', label: 'CA URL', placeholder: 'https://ca.example.com', required: true },
+      { key: 'provisioner_name', label: 'Provisioner Name', placeholder: 'my-provisioner', required: true },
+      { key: 'provisioner_key', label: 'Provisioner Key (JWK)', placeholder: '{...}', type: 'textarea', required: true },
+    ],
+  },
+  {
+    id: 'openssl',
+    name: 'OpenSSL/Custom',
+    description: 'Script-based signing with your own CA',
+    configFields: [
+      { key: 'sign_script', label: 'Sign Script Path', placeholder: '/path/to/sign.sh', required: true },
+      { key: 'revoke_script', label: 'Revoke Script Path (optional)', placeholder: '/path/to/revoke.sh', required: false },
+      { key: 'crl_script', label: 'CRL Script Path (optional)', placeholder: '/path/to/crl.sh', required: false },
+      { key: 'timeout_seconds', label: 'Timeout (seconds)', placeholder: '30', type: 'number', required: false },
+    ],
+  },
+];
+
 export default function IssuersPage() {
   const queryClient = useQueryClient();
   const [testResult, setTestResult] = useState<{ id: string; ok: boolean; msg: string } | null>(null);
+  const [showCreateModal, setShowCreateModal] = useState(false);
+  const [createStep, setCreateStep] = useState<'type' | 'config'>('type');
+  const [selectedType, setSelectedType] = useState<string | null>(null);
+  const [createForm, setCreateForm] = useState<Record<string, unknown>>({});
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['issuers'],
@@ -36,6 +102,18 @@ export default function IssuersPage() {
     onSuccess: () => queryClient.invalidateQueries({ queryKey: ['issuers'] }),
   });
 
+  const createMutation = useMutation({
+    mutationFn: (data: { name: string; type: string; config: Record<string, unknown> }) =>
+      createIssuer(data),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['issuers'] });
+      setShowCreateModal(false);
+      setCreateStep('type');
+      setSelectedType(null);
+      setCreateForm({});
+    },
+  });
+
   const columns: Column<Issuer>[] = [
     {
       key: 'name',
@@ -101,7 +179,23 @@ export default function IssuersPage() {
 
   return (
     <>
-      <PageHeader title="Issuers" subtitle={data ? `${data.total} issuers` : undefined} />
+      <PageHeader
+        title="Issuers"
+        subtitle={data ? `${data.total} issuers` : undefined}
+        action={
+          <button
+            onClick={() => {
+              setShowCreateModal(true);
+              setCreateStep('type');
+              setSelectedType(null);
+              setCreateForm({});
+            }}
+            className="px-4 py-2 bg-brand-600 text-white rounded font-medium hover:bg-brand-700 transition-colors text-sm"
+          >
+            + New Issuer
+          </button>
+        }
+      />
       {testResult && (
         <div className={`mx-6 mt-3 rounded px-4 py-3 text-sm ${testResult.ok ? 'bg-emerald-100 border border-emerald-200 text-emerald-700' : 'bg-red-50 border border-red-200 text-red-700'}`}>
           {testResult.id}: {testResult.msg}
@@ -115,6 +209,207 @@ export default function IssuersPage() {
           <DataTable columns={columns} data={data?.data || []} isLoading={isLoading} emptyMessage="No issuers configured" />
         )}
       </div>
+
+      {showCreateModal && (
+        <CreateIssuerModal
+          step={createStep}
+          selectedType={selectedType}
+          form={createForm}
+          onTypeSelect={(type) => {
+            setSelectedType(type);
+            const typeConfig = issuerTypes.find((t) => t.id === type);
+            const defaultConfig: Record<string, unknown> = {};
+            if (typeConfig) {
+              typeConfig.configFields.forEach((field) => {
+                if (field.defaultValue) {
+                  defaultConfig[field.key] = field.defaultValue;
+                }
+              });
+            }
+            setCreateForm({ ...defaultConfig });
+            setCreateStep('config');
+          }}
+          onFormChange={(field, value) => {
+            setCreateForm({ ...createForm, [field]: value });
+          }}
+          onBack={() => setCreateStep('type')}
+          onSubmit={() => {
+            if (!selectedType || !createForm.name) return;
+            const config: Record<string, unknown> = { ...createForm };
+            const name = config.name as string;
+            delete config.name;
+            createMutation.mutate({ name, type: selectedType, config });
+          }}
+          onCancel={() => {
+            setShowCreateModal(false);
+            setCreateStep('type');
+            setSelectedType(null);
+            setCreateForm({});
+          }}
+          isSubmitting={createMutation.isPending}
+        />
+      )}
     </>
   );
 }
+
+interface CreateIssuerModalProps {
+  step: 'type' | 'config';
+  selectedType: string | null;
+  form: Record<string, unknown>;
+  onTypeSelect: (type: string) => void;
+  onFormChange: (field: string, value: unknown) => void;
+  onBack: () => void;
+  onSubmit: () => void;
+  onCancel: () => void;
+  isSubmitting: boolean;
+}
+
+function CreateIssuerModal({
+  step,
+  selectedType,
+  form,
+  onTypeSelect,
+  onFormChange,
+  onBack,
+  onSubmit,
+  onCancel,
+  isSubmitting,
+}: CreateIssuerModalProps) {
+  const selectedTypeConfig = issuerTypes.find((t) => t.id === selectedType);
+
+  return (
+    <div className="fixed inset-0 bg-black bg-opacity-50 z-50 flex items-center justify-center">
+      <div className="bg-surface border border-surface-border rounded-lg shadow-lg max-w-2xl w-full mx-4">
+        {/* Header */}
+        <div className="border-b border-surface-border px-6 py-4 flex justify-between items-center">
+          <h2 className="text-lg font-semibold text-ink">
+            {step === 'type' ? 'Create Issuer' : `Configure ${selectedTypeConfig?.name || 'Issuer'}`}
+          </h2>
+          <button
+            onClick={onCancel}
+            className="text-ink-muted hover:text-ink transition-colors"
+          >
+            ✕
+          </button>
+        </div>
+
+        {/* Content */}
+        <div className="px-6 py-6">
+          {step === 'type' ? (
+            <div className="grid grid-cols-2 gap-4">
+              {issuerTypes.map((type) => (
+                <button
+                  key={type.id}
+                  onClick={() => onTypeSelect(type.id)}
+                  className="p-4 border border-surface-border rounded-lg hover:border-brand-500 hover:bg-opacity-5 transition-all text-left"
+                >
+                  <div className="font-medium text-ink">{type.name}</div>
+                  <div className="text-sm text-ink-muted mt-1">{type.description}</div>
+                </button>
+              ))}
+            </div>
+          ) : (
+            <div className="space-y-5">
+              {/* Name field always shown */}
+              <div>
+                <label className="block text-sm font-medium text-ink mb-2">Issuer Name *</label>
+                <input
+                  type="text"
+                  value={(form.name as string) || ''}
+                  onChange={(e) => onFormChange('name', e.target.value)}
+                  placeholder="e.g., Production CA"
+                  className="w-full px-3 py-2 bg-surface border border-surface-border rounded text-ink placeholder-ink-faint focus:outline-none focus:border-brand-500 transition-colors"
+                />
+              </div>
+
+              {/* Type-specific fields */}
+              {selectedTypeConfig?.configFields.map((field) => (
+                <div key={field.key}>
+                  <label className="block text-sm font-medium text-ink mb-2">
+                    {field.label}
+                    {field.required && <span className="text-red-600 ml-1">*</span>}
+                  </label>
+                  {field.type === 'select' ? (
+                    <select
+                      value={(form[field.key] as string) || ''}
+                      onChange={(e) => onFormChange(field.key, e.target.value)}
+                      className="w-full px-3 py-2 bg-surface border border-surface-border rounded text-ink focus:outline-none focus:border-brand-500 transition-colors"
+                    >
+                      <option value="">Select {field.label}</option>
+                      {field.options?.map((opt) => (
+                        <option key={opt} value={opt}>
+                          {opt}
+                        </option>
+                      ))}
+                    </select>
+                  ) : field.type === 'textarea' ? (
+                    <textarea
+                      value={(form[field.key] as string) || ''}
+                      onChange={(e) => onFormChange(field.key, e.target.value)}
+                      placeholder={field.placeholder}
+                      rows={4}
+                      className="w-full px-3 py-2 bg-surface border border-surface-border rounded text-ink placeholder-ink-faint focus:outline-none focus:border-brand-500 transition-colors font-mono text-xs"
+                    />
+                  ) : field.type === 'number' ? (
+                    <input
+                      type="number"
+                      value={(form[field.key] as number | string) || ''}
+                      onChange={(e) => onFormChange(field.key, e.target.value ? parseInt(e.target.value, 10) : '')}
+                      placeholder={field.placeholder}
+                      className="w-full px-3 py-2 bg-surface border border-surface-border rounded text-ink placeholder-ink-faint focus:outline-none focus:border-brand-500 transition-colors"
+                    />
+                  ) : (
+                    <input
+                      type="text"
+                      value={(form[field.key] as string) || ''}
+                      onChange={(e) => onFormChange(field.key, e.target.value)}
+                      placeholder={field.placeholder}
+                      className="w-full px-3 py-2 bg-surface border border-surface-border rounded text-ink placeholder-ink-faint focus:outline-none focus:border-brand-500 transition-colors"
+                    />
+                  )}
+                </div>
+              ))}
+            </div>
+          )}
+        </div>
+
+        {/* Footer */}
+        <div className="border-t border-surface-border px-6 py-4 flex justify-end gap-3">
+          {step === 'config' && (
+            <button
+              onClick={onBack}
+              className="px-4 py-2 border border-surface-border rounded text-ink hover:bg-surface-hover transition-colors text-sm font-medium"
+            >
+              Back
+            </button>
+          )}
+          <button
+            onClick={onCancel}
+            className="px-4 py-2 border border-surface-border rounded text-ink hover:bg-surface-hover transition-colors text-sm font-medium"
+          >
+            Cancel
+          </button>
+          {step === 'config' && (
+            <button
+              onClick={onSubmit}
+              disabled={isSubmitting || !form.name}
+              className="px-4 py-2 bg-brand-600 text-white rounded text-sm font-medium hover:bg-brand-700 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isSubmitting ? 'Creating...' : 'Create Issuer'}
+            </button>
+          )}
+          {step === 'type' && (
+            <button
+              onClick={() => selectedType && onTypeSelect(selectedType)}
+              disabled={!selectedType}
+              className="px-4 py-2 bg-brand-600 text-white rounded text-sm font-medium hover:bg-brand-700 transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              Next
+            </button>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/web/src/pages/OwnersPage.tsx b/web/src/pages/OwnersPage.tsx
index 1ea672f..bb0a6b4 100644
--- a/web/src/pages/OwnersPage.tsx
+++ b/web/src/pages/OwnersPage.tsx
@@ -1,5 +1,6 @@
+import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getOwners, getTeams, deleteOwner } from '../api/client';
+import { getOwners, getTeams, deleteOwner, createOwner } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -7,8 +8,107 @@ import ErrorState from '../components/ErrorState';
 import { formatDateTime } from '../api/utils';
 import type { Owner, Team } from '../api/types';
 
+interface CreateOwnerModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSuccess: () => void;
+  isLoading: boolean;
+  error: string | null;
+  teamsData?: { data: Team[] };
+}
+
+function CreateOwnerModal({ isOpen, onClose, onSuccess, isLoading, error, teamsData }: CreateOwnerModalProps) {
+  const [name, setName] = useState('');
+  const [email, setEmail] = useState('');
+  const [teamId, setTeamId] = useState('');
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!name.trim() || !email.trim()) return;
+    try {
+      await createOwner({
+        name: name.trim(),
+        email: email.trim(),
+        team_id: teamId || undefined,
+      });
+      setName('');
+      setEmail('');
+      setTeamId('');
+      onSuccess();
+    } catch (err) {
+      console.error('Create owner error:', err);
+    }
+  };
+
+  if (!isOpen) return null;
+
+  const teams = teamsData?.data || [];
+
+  return (
+    <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50" onClick={onClose}>
+      <div className="bg-surface border border-surface-border rounded p-5 w-full max-w-md shadow-xl" onClick={e => e.stopPropagation()}>
+        <h2 className="text-lg font-semibold text-ink mb-4">Create Owner</h2>
+        {error && <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded text-sm text-red-700">{error}</div>}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Name *</label>
+            <input
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="e.g., Alice Smith"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Email *</label>
+            <input
+              type="email"
+              value={email}
+              onChange={e => setEmail(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="alice@example.com"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Team</label>
+            <select
+              value={teamId}
+              onChange={e => setTeamId(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+            >
+              <option value="">Unassigned</option>
+              {teams.map(team => (
+                <option key={team.id} value={team.id}>{team.name}</option>
+              ))}
+            </select>
+          </div>
+          <div className="flex gap-2 pt-4">
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="flex-1 btn btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isLoading ? 'Creating...' : 'Create Owner'}
+            </button>
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex-1 btn btn-ghost"
+            >
+              Cancel
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
+
 export default function OwnersPage() {
   const queryClient = useQueryClient();
+  const [showCreate, setShowCreate] = useState(false);
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['owners'],
@@ -26,6 +126,14 @@ export default function OwnersPage() {
     onError: (err: Error) => alert(`Delete failed: ${err.message}`),
   });
 
+  const createMutation = useMutation({
+    mutationFn: createOwner,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['owners'] });
+      setShowCreate(false);
+    },
+  });
+
   const teamMap = new Map<string, Team>();
   (teamsData?.data || []).forEach((t) => teamMap.set(t.id, t));
 
@@ -76,7 +184,15 @@ export default function OwnersPage() {
 
   return (
     <>
-      <PageHeader title="Owners" subtitle={data ? `${data.total} owners` : undefined} />
+      <PageHeader
+        title="Owners"
+        subtitle={data ? `${data.total} owners` : undefined}
+        action={
+          <button onClick={() => setShowCreate(true)} className="btn btn-primary">
+            + New Owner
+          </button>
+        }
+      />
       <div className="flex-1 overflow-y-auto">
         {error ? (
           <ErrorState error={error as Error} onRetry={() => refetch()} />
@@ -84,6 +200,14 @@ export default function OwnersPage() {
           <DataTable columns={columns} data={data?.data || []} isLoading={isLoading} emptyMessage="No owners configured" />
         )}
       </div>
+      <CreateOwnerModal
+        isOpen={showCreate}
+        onClose={() => setShowCreate(false)}
+        onSuccess={() => {}}
+        isLoading={createMutation.isPending}
+        error={createMutation.error ? (createMutation.error as Error).message : null}
+        teamsData={teamsData}
+      />
     </>
   );
 }
diff --git a/web/src/pages/PoliciesPage.tsx b/web/src/pages/PoliciesPage.tsx
index 823d942..0ed1d3f 100644
--- a/web/src/pages/PoliciesPage.tsx
+++ b/web/src/pages/PoliciesPage.tsx
@@ -1,5 +1,6 @@
+import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getPolicies, updatePolicy, deletePolicy } from '../api/client';
+import { getPolicies, updatePolicy, deletePolicy, createPolicy } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -21,8 +22,128 @@ const severityDots: Record<string, string> = {
   critical: 'bg-red-500',
 };
 
+interface CreatePolicyModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSuccess: () => void;
+  isLoading: boolean;
+  error: string | null;
+}
+
+function CreatePolicyModal({ isOpen, onClose, onSuccess, isLoading, error }: CreatePolicyModalProps) {
+  const [name, setName] = useState('');
+  const [type, setType] = useState('key_algorithm');
+  const [severity, setSeverity] = useState('medium');
+  const [configStr, setConfigStr] = useState('{}');
+  const [enabled, setEnabled] = useState(true);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!name.trim()) return;
+    try {
+      const config = JSON.parse(configStr);
+      await createPolicy({ name: name.trim(), type, severity, config, enabled });
+      setName('');
+      setType('key_algorithm');
+      setSeverity('medium');
+      setConfigStr('{}');
+      setEnabled(true);
+      onSuccess();
+    } catch (err) {
+      console.error('Create policy error:', err);
+    }
+  };
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50" onClick={onClose}>
+      <div className="bg-surface border border-surface-border rounded p-5 w-full max-w-md shadow-xl" onClick={e => e.stopPropagation()}>
+        <h2 className="text-lg font-semibold text-ink mb-4">Create Policy</h2>
+        {error && <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded text-sm text-red-700">{error}</div>}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Name *</label>
+            <input
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="e.g., Key Length Enforcement"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Type *</label>
+            <select
+              value={type}
+              onChange={e => setType(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+            >
+              <option value="key_algorithm">Key Algorithm</option>
+              <option value="cert_lifetime">Certificate Lifetime</option>
+              <option value="san_pattern">SAN Pattern</option>
+              <option value="key_usage">Key Usage</option>
+              <option value="revocation_check">Revocation Check</option>
+            </select>
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Severity *</label>
+            <select
+              value={severity}
+              onChange={e => setSeverity(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+            >
+              <option value="low">Low</option>
+              <option value="medium">Medium</option>
+              <option value="high">High</option>
+              <option value="critical">Critical</option>
+            </select>
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Config (JSON)</label>
+            <textarea
+              value={configStr}
+              onChange={e => setConfigStr(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink font-mono focus:outline-none focus:border-brand-400"
+              placeholder='{"key": "value"}'
+              rows={3}
+            />
+          </div>
+          <div className="flex items-center gap-2">
+            <input
+              type="checkbox"
+              id="enabled"
+              checked={enabled}
+              onChange={e => setEnabled(e.target.checked)}
+              className="w-4 h-4"
+            />
+            <label htmlFor="enabled" className="text-sm text-ink">Enabled</label>
+          </div>
+          <div className="flex gap-2 pt-4">
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="flex-1 btn btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isLoading ? 'Creating...' : 'Create Policy'}
+            </button>
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex-1 btn btn-ghost"
+            >
+              Cancel
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
+
 export default function PoliciesPage() {
   const queryClient = useQueryClient();
+  const [showCreate, setShowCreate] = useState(false);
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['policies'],
@@ -39,6 +160,14 @@ export default function PoliciesPage() {
     onSuccess: () => queryClient.invalidateQueries({ queryKey: ['policies'] }),
   });
 
+  const createMutation = useMutation({
+    mutationFn: createPolicy,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['policies'] });
+      setShowCreate(false);
+    },
+  });
+
   const policies = data?.data || [];
   const enabledCount = policies.filter(p => p.enabled).length;
   const bySeverity = policies.reduce<Record<string, number>>((acc, p) => {
@@ -104,7 +233,15 @@ export default function PoliciesPage() {
 
   return (
     <>
-      <PageHeader title="Policies" subtitle={data ? `${data.total} rules` : undefined} />
+      <PageHeader
+        title="Policies"
+        subtitle={data ? `${data.total} rules` : undefined}
+        action={
+          <button onClick={() => setShowCreate(true)} className="btn btn-primary">
+            + New Policy
+          </button>
+        }
+      />
       {policies.length > 0 && (
         <div className="px-4 py-3 flex flex-wrap gap-4 border-b border-surface-border/50">
           <div className="flex items-center gap-2">
@@ -129,6 +266,13 @@ export default function PoliciesPage() {
           <DataTable columns={columns} data={policies} isLoading={isLoading} emptyMessage="No policy rules" />
         )}
       </div>
+      <CreatePolicyModal
+        isOpen={showCreate}
+        onClose={() => setShowCreate(false)}
+        onSuccess={() => {}}
+        isLoading={createMutation.isPending}
+        error={createMutation.error ? (createMutation.error as Error).message : null}
+      />
     </>
   );
 }
diff --git a/web/src/pages/ProfilesPage.tsx b/web/src/pages/ProfilesPage.tsx
index 4b5e613..570bac4 100644
--- a/web/src/pages/ProfilesPage.tsx
+++ b/web/src/pages/ProfilesPage.tsx
@@ -1,5 +1,6 @@
+import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getProfiles, deleteProfile } from '../api/client';
+import { getProfiles, deleteProfile, createProfile } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -16,8 +17,115 @@ function formatTTL(seconds: number): string {
   return `${Math.floor(seconds / 86400)}d`;
 }
 
+interface CreateProfileModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSuccess: () => void;
+  isLoading: boolean;
+  error: string | null;
+}
+
+function CreateProfileModal({ isOpen, onClose, onSuccess, isLoading, error }: CreateProfileModalProps) {
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+  const [ttl, setTtl] = useState('86400');
+  const [shortLived, setShortLived] = useState(false);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!name.trim()) return;
+    try {
+      await createProfile({
+        name: name.trim(),
+        description: description.trim(),
+        max_ttl_seconds: parseInt(ttl) || 86400,
+        allow_short_lived: shortLived,
+        enabled: true,
+      });
+      setName('');
+      setDescription('');
+      setTtl('86400');
+      setShortLived(false);
+      onSuccess();
+    } catch (err) {
+      console.error('Create profile error:', err);
+    }
+  };
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50" onClick={onClose}>
+      <div className="bg-surface border border-surface-border rounded p-5 w-full max-w-md shadow-xl" onClick={e => e.stopPropagation()}>
+        <h2 className="text-lg font-semibold text-ink mb-4">Create Profile</h2>
+        {error && <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded text-sm text-red-700">{error}</div>}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Name *</label>
+            <input
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="e.g., Web Server Certs"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Description</label>
+            <textarea
+              value={description}
+              onChange={e => setDescription(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="Optional description"
+              rows={2}
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Max TTL (seconds)</label>
+            <input
+              type="number"
+              value={ttl}
+              onChange={e => setTtl(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="86400"
+            />
+            <p className="text-xs text-ink-muted mt-1">e.g. 86400 = 1 day, 2592000 = 30 days</p>
+          </div>
+          <div className="flex items-center gap-2">
+            <input
+              type="checkbox"
+              id="shortLived"
+              checked={shortLived}
+              onChange={e => setShortLived(e.target.checked)}
+              className="w-4 h-4"
+            />
+            <label htmlFor="shortLived" className="text-sm text-ink">Allow short-lived certs</label>
+          </div>
+          <div className="flex gap-2 pt-4">
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="flex-1 btn btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isLoading ? 'Creating...' : 'Create Profile'}
+            </button>
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex-1 btn btn-ghost"
+            >
+              Cancel
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
+
 export default function ProfilesPage() {
   const queryClient = useQueryClient();
+  const [showCreate, setShowCreate] = useState(false);
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['profiles'],
@@ -29,6 +137,14 @@ export default function ProfilesPage() {
     onSuccess: () => queryClient.invalidateQueries({ queryKey: ['profiles'] }),
   });
 
+  const createMutation = useMutation({
+    mutationFn: createProfile,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['profiles'] });
+      setShowCreate(false);
+    },
+  });
+
   const columns: Column<CertificateProfile>[] = [
     {
       key: 'name',
@@ -116,7 +232,15 @@ export default function ProfilesPage() {
 
   return (
     <>
-      <PageHeader title="Certificate Profiles" subtitle={data ? `${data.total} profiles` : undefined} />
+      <PageHeader
+        title="Certificate Profiles"
+        subtitle={data ? `${data.total} profiles` : undefined}
+        action={
+          <button onClick={() => setShowCreate(true)} className="btn btn-primary">
+            + New Profile
+          </button>
+        }
+      />
       <div className="flex-1 overflow-y-auto">
         {error ? (
           <ErrorState error={error as Error} onRetry={() => refetch()} />
@@ -124,6 +248,13 @@ export default function ProfilesPage() {
           <DataTable columns={columns} data={data?.data || []} isLoading={isLoading} emptyMessage="No profiles configured" />
         )}
       </div>
+      <CreateProfileModal
+        isOpen={showCreate}
+        onClose={() => setShowCreate(false)}
+        onSuccess={() => {}}
+        isLoading={createMutation.isPending}
+        error={createMutation.error ? (createMutation.error as Error).message : null}
+      />
     </>
   );
 }
diff --git a/web/src/pages/TeamsPage.tsx b/web/src/pages/TeamsPage.tsx
index 97ca414..c3f72a4 100644
--- a/web/src/pages/TeamsPage.tsx
+++ b/web/src/pages/TeamsPage.tsx
@@ -1,5 +1,6 @@
+import { useState } from 'react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
-import { getTeams, deleteTeam } from '../api/client';
+import { getTeams, deleteTeam, createTeam } from '../api/client';
 import PageHeader from '../components/PageHeader';
 import DataTable from '../components/DataTable';
 import type { Column } from '../components/DataTable';
@@ -7,8 +8,87 @@ import ErrorState from '../components/ErrorState';
 import { formatDateTime } from '../api/utils';
 import type { Team } from '../api/types';
 
+interface CreateTeamModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  onSuccess: () => void;
+  isLoading: boolean;
+  error: string | null;
+}
+
+function CreateTeamModal({ isOpen, onClose, onSuccess, isLoading, error }: CreateTeamModalProps) {
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!name.trim()) return;
+    try {
+      await createTeam({
+        name: name.trim(),
+        description: description.trim(),
+      });
+      setName('');
+      setDescription('');
+      onSuccess();
+    } catch (err) {
+      console.error('Create team error:', err);
+    }
+  };
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 bg-black/40 flex items-center justify-center z-50" onClick={onClose}>
+      <div className="bg-surface border border-surface-border rounded p-5 w-full max-w-md shadow-xl" onClick={e => e.stopPropagation()}>
+        <h2 className="text-lg font-semibold text-ink mb-4">Create Team</h2>
+        {error && <div className="mb-4 p-3 bg-red-50 border border-red-200 rounded text-sm text-red-700">{error}</div>}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Name *</label>
+            <input
+              value={name}
+              onChange={e => setName(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="e.g., Platform Team"
+              required
+            />
+          </div>
+          <div>
+            <label className="block text-sm font-medium text-ink mb-1">Description</label>
+            <textarea
+              value={description}
+              onChange={e => setDescription(e.target.value)}
+              className="w-full bg-white border border-surface-border rounded px-3 py-2 text-sm text-ink focus:outline-none focus:border-brand-400"
+              placeholder="Optional team description"
+              rows={2}
+            />
+          </div>
+          <div className="flex gap-2 pt-4">
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="flex-1 btn btn-primary disabled:opacity-50 disabled:cursor-not-allowed"
+            >
+              {isLoading ? 'Creating...' : 'Create Team'}
+            </button>
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex-1 btn btn-ghost"
+            >
+              Cancel
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}
+
 export default function TeamsPage() {
   const queryClient = useQueryClient();
+  const [showCreate, setShowCreate] = useState(false);
 
   const { data, isLoading, error, refetch } = useQuery({
     queryKey: ['teams'],
@@ -21,6 +101,14 @@ export default function TeamsPage() {
     onError: (err: Error) => alert(`Delete failed: ${err.message}`),
   });
 
+  const createMutation = useMutation({
+    mutationFn: createTeam,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['teams'] });
+      setShowCreate(false);
+    },
+  });
+
   const columns: Column<Team>[] = [
     {
       key: 'name',
@@ -60,7 +148,15 @@ export default function TeamsPage() {
 
   return (
     <>
-      <PageHeader title="Teams" subtitle={data ? `${data.total} teams` : undefined} />
+      <PageHeader
+        title="Teams"
+        subtitle={data ? `${data.total} teams` : undefined}
+        action={
+          <button onClick={() => setShowCreate(true)} className="btn btn-primary">
+            + New Team
+          </button>
+        }
+      />
       <div className="flex-1 overflow-y-auto">
         {error ? (
           <ErrorState error={error as Error} onRetry={() => refetch()} />
@@ -68,6 +164,13 @@ export default function TeamsPage() {
           <DataTable columns={columns} data={data?.data || []} isLoading={isLoading} emptyMessage="No teams configured" />
         )}
       </div>
+      <CreateTeamModal
+        isOpen={showCreate}
+        onClose={() => setShowCreate(false)}
+        onSuccess={() => {}}
+        isLoading={createMutation.isPending}
+        error={createMutation.error ? (createMutation.error as Error).message : null}
+      />
     </>
   );
 }