diff --git a/apps/backend/chatballs/ai/selectors.py b/apps/backend/chatballs/ai/selectors.py
index 05224d7..88b374d 100644
--- a/apps/backend/chatballs/ai/selectors.py
+++ b/apps/backend/chatballs/ai/selectors.py
@@ -1,13 +1,12 @@
 from collections.abc import Sequence
 from dataclasses import dataclass
 
-from django.db.models import Count, IntegerField, OuterRef, Prefetch, Q, QuerySet, Subquery, Value
+from django.db.models import Count, IntegerField, OuterRef, Q, QuerySet, Subquery, Value
 from django.db.models.functions import Coalesce
 
 from chatballs.ai.agent_knowledge import knowledge_available_to_channel
 from chatballs.ai.knowledge_policy import readable_knowledge, writable_knowledge
 from chatballs.ai.models import AIAgent, Knowledge, KnowledgeCategory, KnowledgeFragment
-from chatballs.channels.models import Channel
 from chatballs.identity.models import AuditEvent
 from chatballs.identity.policy import has_capability_any_scope
 from chatballs.tenancy.context import TenantContext
diff --git a/apps/backend/chatballs/ai/views.py b/apps/backend/chatballs/ai/views.py
index 15adaf3..88f7f53 100644
--- a/apps/backend/chatballs/ai/views.py
+++ b/apps/backend/chatballs/ai/views.py
@@ -21,9 +21,6 @@ from chatballs.ai.knowledge_services import (
 )
 from chatballs.ai.indexing import reindex_knowledge
 from chatballs.ai.models import Knowledge
-
-# Библиотека знаний плотная — своя страница (кадр KB1).
-KNOWLEDGE_PAGE_SIZE = 25
 from chatballs.ai.selectors import (
     apply_knowledge_filters,
     knowledge_editors,
@@ -36,6 +33,9 @@ from chatballs.api.permissions import HasCapability
 from chatballs.identity.audit import record_audit_event
 from chatballs.identity.models import AuditEvent
 
+# Библиотека знаний плотная — своя страница (кадр KB1).
+KNOWLEDGE_PAGE_SIZE = 25
+
 _validation_error = validation_error_response
 
 
diff --git a/apps/backend/chatballs/conversations/chat_extras_views.py b/apps/backend/chatballs/conversations/chat_extras_views.py
index c51a781..8d8ab42 100644
--- a/apps/backend/chatballs/conversations/chat_extras_views.py
+++ b/apps/backend/chatballs/conversations/chat_extras_views.py
@@ -7,7 +7,7 @@
 
 from __future__ import annotations
 
-from django.db.models import Count
+from django.db.models import Count, Q
 from django.utils import timezone
 from rest_framework.request import Request
 from rest_framework.response import Response
@@ -270,6 +270,11 @@ class ConversationCountersView(ConversationViewBase):
         )
 
 
+# Справочник выбора: ростер организации может быть большим, поэтому список
+# коллег ограничен и ищется на сервере — в выборе стоит строка поиска (кадр G).
+DIRECTORY_LIMIT = 50
+
+
 class ConversationDirectoryView(APIView):
     """Справочник блока «Диалог» для оператора (дизайн-базлайн v2, кадр G):
     все группы организации — для переноса, активные коллеги — для назначения.
@@ -287,6 +292,14 @@ class ConversationDirectoryView(APIView):
             .filter(organization_id=organization_id, blocked_at__isnull=True, user__is_active=True)
             .order_by("user__full_name", "user__email")
         )
+        query = request.query_params.get("q", "").strip()
+        if query:
+            members = members.filter(
+                Q(user__full_name__icontains=query) | Q(user__email__icontains=query)
+            )
+        # Ответственного можно назначить и вне выдачи — по поиску, поэтому
+        # оставшихся не прячем молча, а сообщаем признаком hasMore.
+        rows = list(members[: DIRECTORY_LIMIT + 1])
         return Response(
             {
                 "groups": [{"id": group.id, "name": group.name, "color": group.color} for group in groups],
@@ -296,8 +309,9 @@ class ConversationDirectoryView(APIView):
                         "name": member.user.full_name or member.user.email,
                         "avatarUrl": user_avatar_url(member.user, request.tenant_context.organization.public_id),
                     }
-                    for member in members
+                    for member in rows[:DIRECTORY_LIMIT]
                 ],
+                "hasMoreEmployees": len(rows) > DIRECTORY_LIMIT,
             }
         )
 
diff --git a/apps/backend/chatballs/conversations/test_directory.py b/apps/backend/chatballs/conversations/test_directory.py
new file mode 100644
index 0000000..b05d59c
--- /dev/null
+++ b/apps/backend/chatballs/conversations/test_directory.py
@@ -0,0 +1,56 @@
+"""Справочник выбора ответственного: ограниченная выдача и поиск на сервере."""
+
+from django.test import TestCase
+
+from chatballs.conversations.chat_extras_views import DIRECTORY_LIMIT
+from chatballs.identity.bootstrap import bootstrap_owner
+from chatballs.identity.models import (
+    EmployeeRole,
+    HumanUser,
+    Organization,
+    OrganizationMembership,
+)
+from chatballs.testing import TenantAPIClient as APIClient
+
+
+class ConversationDirectoryTests(TestCase):
+    def setUp(self) -> None:
+        bootstrap_owner(email="owner@example.com", password="temporary-password")
+        self.organization = Organization.objects.get(slug="demo")
+        for index in range(DIRECTORY_LIMIT + 10):
+            user = HumanUser.objects.create_user(
+                email=f"member{index:03d}@example.com",
+                password="Password-123",
+                full_name=f"Сотрудник {index:03d}",
+            )
+            OrganizationMembership.objects.create(
+                user=user,
+                organization=self.organization,
+                role=EmployeeRole.EMPLOYEE,
+                position_title="Оператор",
+            )
+        self.client = APIClient()
+        self.client.login(username="owner@example.com", password="temporary-password")
+
+    def _directory(self, query: str = "") -> dict:
+        response = self.client.get(f"/api/v1/conversations/directory/{query}")
+        self.assertEqual(response.status_code, 200)
+        return response.json()
+
+    def test_employees_are_bounded_and_report_the_rest(self) -> None:
+        payload = self._directory()
+        self.assertEqual(len(payload["employees"]), DIRECTORY_LIMIT)
+        self.assertTrue(payload["hasMoreEmployees"])
+
+    def test_search_finds_colleague_outside_the_first_rows(self) -> None:
+        # Именно ради этого случая в выборе и появляется строка поиска.
+        payload = self._directory("?q=Сотрудник 057")
+        self.assertEqual([item["name"] for item in payload["employees"]], ["Сотрудник 057"])
+        self.assertFalse(payload["hasMoreEmployees"])
+
+    def test_search_matches_email(self) -> None:
+        payload = self._directory("?q=member042@")
+        self.assertEqual(len(payload["employees"]), 1)
+
+    def test_groups_are_returned_as_before(self) -> None:
+        self.assertIn("groups", self._directory())
diff --git a/apps/internal-ui/src/features/chat/ChatPage.tsx b/apps/internal-ui/src/features/chat/ChatPage.tsx
index ee8115b..0abe9d3 100644
--- a/apps/internal-ui/src/features/chat/ChatPage.tsx
+++ b/apps/internal-ui/src/features/chat/ChatPage.tsx
@@ -65,7 +65,6 @@ export function ChatPage({
           dialog={dialog}
           detail={detail}
           groups={directory.groups}
-          employees={directory.employees}
           applyConversation={applyConversation}
           startCall={startCall}
           closeContext={closeContext}
@@ -82,7 +81,6 @@ function ChatContextPanel({
   dialog,
   detail,
   groups,
-  employees,
   applyConversation,
   startCall,
   closeContext,
@@ -93,7 +91,6 @@ function ChatContextPanel({
   dialog: ConversationListItem | null;
   detail: ApiConversation | null;
   groups: Array<EmployeeGroupRef & { color?: string }>;
-  employees: Array<{ id: number; name: string; avatarUrl?: string | null }>;
   applyConversation: (updated: ApiConversation) => void;
   startCall: ((kind: "AUDIO" | "VIDEO") => void) | null;
   closeContext: () => void;
@@ -108,7 +105,7 @@ function ChatContextPanel({
       </div>
       <div className="sales-context-body">
         {rightTab === "client" && (
-          <ClientContext dialog={dialog} detail={detail} groups={groups} employees={employees} applyConversation={applyConversation} startCall={startCall} viewerId={viewerId} />
+          <ClientContext dialog={dialog} detail={detail} groups={groups} applyConversation={applyConversation} startCall={startCall} viewerId={viewerId} />
         )}
         {rightTab === "history" && <HistoryContext detail={detail} />}
       </div>
diff --git a/apps/internal-ui/src/features/conversations/DialogControls.tsx b/apps/internal-ui/src/features/conversations/DialogControls.tsx
index 1756c2f..1fe4554 100644
--- a/apps/internal-ui/src/features/conversations/DialogControls.tsx
+++ b/apps/internal-ui/src/features/conversations/DialogControls.tsx
@@ -2,7 +2,9 @@ import { Dropdown } from "antd";
 import { useEffect, useState } from "react";
 
 import { Icon } from "../../shared/icons";
+import { SearchInput } from "../../shared/ui-controls";
 import { PriorityBars } from "./DialogList";
+import { useEmployeeDirectory } from "./useEmployeeDirectory";
 import { statusFor } from "./data";
 import {
   agentColorOf,
@@ -47,16 +49,15 @@ function initials(name: string): string {
 export function DialogControls({
   detail,
   groups,
-  employees,
   applyConversation,
   viewerId = null,
 }: {
   detail: ApiConversation;
   groups: Array<EmployeeGroupRef & { color?: string }>;
-  employees: Array<{ id: number; name: string; avatarUrl?: string | null }>;
   applyConversation: (updated: ApiConversation) => void;
   viewerId?: number | null;
 }) {
+  const directory = useEmployeeDirectory();
   const [busy, setBusy] = useState(false);
   const [errorText, setErrorText] = useState("");
   const [collapsed, setCollapsed] = useState(false);
@@ -112,7 +113,7 @@ export function DialogControls({
   const assigneeLabel = assignee ? `${assignee.name}${viewerId != null && assignee.id === viewerId ? " · вы" : ""}` : "Не назначен";
   const status = statusFor(controlModeOf(detail), assignee?.name);
   const priorityLabel = PRIORITY_OPTIONS.find(([value]) => value === detail.priority)?.[1] ?? "Не задан";
-  const canEdit = employees.length > 0 || groups.length > 0;
+  const canEdit = directory.employees.length > 0 || groups.length > 0;
 
   return (
     <>
@@ -127,13 +128,29 @@ export function DialogControls({
 
             <label className="ctx-label">Ответственный</label>
             <Dropdown
-              disabled={busy || employees.length === 0}
+              disabled={busy || (directory.employees.length === 0 && !directory.query)}
               trigger={["click"]}
               overlayClassName="app-dropdown ctx-menu"
               menu={{
                 items: [
+                  // Строка поиска появляется, когда коллег больше, чем помещается
+                  // в выдачу справочника: маленькой команде она не нужна.
+                  ...(directory.hasMore || directory.query
+                    ? [{
+                      key: "search",
+                      type: "group" as const,
+                      label: (
+                        <SearchInput
+                          className="ctx-menu-search"
+                          placeholder="Имя или почта"
+                          value={directory.query}
+                          onChange={directory.setQuery}
+                        />
+                      ),
+                    }]
+                    : []),
                   { key: "none", label: <button type="button" className={assignee ? "" : "is-checked"} onClick={() => void run(() => setConversationAssignee(detail.id, null))}><span className="ctx-avatar-empty" /><span>Не назначен</span>{!assignee && <Icon name="check" size={15} />}</button> },
-                  ...employees.map((employee) => ({
+                  ...directory.employees.map((employee) => ({
                     key: employee.id,
                     label: <button type="button" className={assignee?.id === employee.id ? "is-checked" : ""} onClick={() => void run(() => setConversationAssignee(detail.id, employee.id))}><SmallAvatar name={employee.name} avatarUrl={employee.avatarUrl} /><span>{employee.name}{viewerId === employee.id ? " · вы" : ""}</span>{assignee?.id === employee.id && <Icon name="check" size={15} />}</button>,
                   })),
diff --git a/apps/internal-ui/src/features/conversations/model.ts b/apps/internal-ui/src/features/conversations/model.ts
index 7c99bda..2b27e06 100644
--- a/apps/internal-ui/src/features/conversations/model.ts
+++ b/apps/internal-ui/src/features/conversations/model.ts
@@ -270,16 +270,22 @@ export const fetchWaitingCount = () => api<{ waiting: number }>("/api/v1/convers
 
 // Справочник блока «Диалог» (кадр G): все группы для переноса и коллеги для
 // назначения — доступен и сотруднику, у которого нет менеджерских списков.
+export type ChatDirectoryEmployee = { id: number; name: string; avatarUrl?: string | null };
+
 export type ChatDirectory = {
   groups: Array<{ id: number; name: string; color?: string }>;
-  employees: Array<{ id: number; name: string; avatarUrl?: string | null }>;
+  // Выдача коллег ограничена, поиск — на сервере: ростер организации может
+  // быть каким угодно, а выбор ответственного — не список.
+  employees: ChatDirectoryEmployee[];
+  hasMoreEmployees?: boolean;
 };
 
 // Карточка контакта из диалога (карандаш у имени, дизайн-базлайн v2).
 export const updateContactCard = (conversationId: number, fields: Partial<{ name: string; description: string; phone: string; company: string; city: string }>) =>
   conversationAction(conversationId, "contact", fields);
 
-export const fetchChatDirectory = () => api<ChatDirectory>("/api/v1/conversations/directory/");
+export const fetchChatDirectory = (query = "") =>
+  api<ChatDirectory>(`/api/v1/conversations/directory/${query.trim() ? `?q=${encodeURIComponent(query.trim())}` : ""}`);
 
 const conversationAction = (id: number, suffix: string, body: object) =>
   api<{ conversation: ApiConversation }>(`/api/v1/conversations/${id}/${suffix}/`, {
diff --git a/apps/internal-ui/src/features/conversations/useEmployeeDirectory.ts b/apps/internal-ui/src/features/conversations/useEmployeeDirectory.ts
new file mode 100644
index 0000000..fc0507a
--- /dev/null
+++ b/apps/internal-ui/src/features/conversations/useEmployeeDirectory.ts
@@ -0,0 +1,47 @@
+import { useEffect, useState } from "react";
+
+import { useDebounced } from "../../shared/useDebounced";
+import { fetchChatDirectory, type ChatDirectoryEmployee } from "./model";
+
+// Справочник коллег для выбора ответственного (кадр G). Сервер отдаёт
+// ограниченную выдачу и ищет сам: в организации может быть сколько угодно
+// сотрудников, а выбор — не список.
+
+export type EmployeeDirectory = {
+  employees: ChatDirectoryEmployee[];
+  query: string;
+  setQuery: (query: string) => void;
+  /** За пределами выдачи есть ещё коллеги — выбору нужна строка поиска. */
+  hasMore: boolean;
+  loading: boolean;
+};
+
+export function useEmployeeDirectory(): EmployeeDirectory {
+  const [employees, setEmployees] = useState<ChatDirectoryEmployee[]>([]);
+  const [hasMore, setHasMore] = useState(false);
+  const [query, setQuery] = useState("");
+  const [loading, setLoading] = useState(true);
+  const settledQuery = useDebounced(query.trim());
+
+  useEffect(() => {
+    let active = true;
+    setLoading(true);
+    fetchChatDirectory(settledQuery)
+      .then((payload) => {
+        if (!active) return;
+        setEmployees(payload.employees);
+        setHasMore(Boolean(payload.hasMoreEmployees));
+      })
+      .catch(() => {
+        if (active) setEmployees([]);
+      })
+      .finally(() => {
+        if (active) setLoading(false);
+      });
+    return () => {
+      active = false;
+    };
+  }, [settledQuery]);
+
+  return { employees, query, setQuery, hasMore, loading };
+}
diff --git a/apps/internal-ui/src/features/employees/OwnershipTransferModal.tsx b/apps/internal-ui/src/features/employees/OwnershipTransferModal.tsx
index 7041b95..ebf6b5d 100644
--- a/apps/internal-ui/src/features/employees/OwnershipTransferModal.tsx
+++ b/apps/internal-ui/src/features/employees/OwnershipTransferModal.tsx
@@ -3,6 +3,8 @@ import { useEffect, useState } from "react";
 import { api } from "../../api/client";
 import { Icon } from "../../shared/icons";
 import { Avatar } from "../../shared/ui";
+import { SearchInput } from "../../shared/ui-controls";
+import { useDebounced } from "../../shared/useDebounced";
 import type { Employee, Role } from "../../types";
 import { fetchOwner, fetchOwnershipCandidates } from "./api";
 import { employeeAvatarColor, roleBadge } from "./model";
@@ -22,6 +24,11 @@ export function OwnershipTransferModal({ onClose }: { onClose: () => void }) {
   const [owner, setOwner] = useState<Employee | null>(null);
   const [candidates, setCandidates] = useState<Employee[]>([]);
   const [targetId, setTargetId] = useState<number | null>(null);
+  // Поиск по кандидатам появляется, только если администраторов больше, чем
+  // вернула страница: у обычной команды выбор остаётся простым списком.
+  const [query, setQuery] = useState("");
+  const [hasMore, setHasMore] = useState(false);
+  const settledQuery = useDebounced(query);
   const [previousOwnerRole, setPreviousOwnerRole] = useState<Extract<Role, "ADMIN" | "EMPLOYEE">>("ADMIN");
 
   const [confirmed, setConfirmed] = useState(false);
@@ -30,13 +37,16 @@ export function OwnershipTransferModal({ onClose }: { onClose: () => void }) {
 
   useEffect(() => {
     let active = true;
-    void Promise.all([fetchOwner(), fetchOwnershipCandidates()])
+    void Promise.all([fetchOwner(), fetchOwnershipCandidates(settledQuery)])
       .then(([owners, admins]) => {
         if (!active) return;
         const activeAdmins = admins.items.filter((employee) => employee.isActive && !employee.isBlocked);
         setOwner(owners.items[0] ?? null);
         setCandidates(activeAdmins);
-        setTargetId(activeAdmins[0]?.id ?? null);
+        setHasMore(admins.total > admins.items.length);
+        setTargetId((current) => (
+          activeAdmins.some((employee) => employee.id === current) ? current : activeAdmins[0]?.id ?? null
+        ));
       })
       .catch(() => {
         if (active) setError("Не удалось загрузить кандидатов");
@@ -44,7 +54,7 @@ export function OwnershipTransferModal({ onClose }: { onClose: () => void }) {
     return () => {
       active = false;
     };
-  }, []);
+  }, [settledQuery]);
 
   if (!owner) return null;
   const target = candidates.find((employee) => employee.id === targetId) ?? null;
@@ -77,6 +87,14 @@ export function OwnershipTransferModal({ onClose }: { onClose: () => void }) {
         </header>
 
         <div className="employee-transfer-body">
+          {(hasMore || query) && (
+            <SearchInput
+              className="employee-transfer-search"
+              placeholder="Имя, почта или должность"
+              value={query}
+              onChange={setQuery}
+            />
+          )}
           {candidates.length === 0 ? (
             <p className="employee-create-note">Активных администраторов нет. Чтобы передать владение сотруднику, сначала сделайте его администратором.</p>
           ) : (
diff --git a/apps/internal-ui/src/features/employees/api.ts b/apps/internal-ui/src/features/employees/api.ts
index 3b8e20b..a6922ea 100644
--- a/apps/internal-ui/src/features/employees/api.ts
+++ b/apps/internal-ui/src/features/employees/api.ts
@@ -68,9 +68,12 @@ export function fetchEmployees(
 }
 
 /** Кандидаты на владение (кадр E9) — только действующие администраторы.
- *  Их единицы, поэтому берётся одна страница; роль отбирает сервер. */
-export function fetchOwnershipCandidates(): Promise<PagedPayload<Employee>> {
-  return api<PagedPayload<Employee>>("/api/v1/employees/?role=ADMIN&pageSize=100");
+ *  Роль и поиск отбирает сервер; если админов больше страницы, у выбора
+ *  появляется строка поиска. */
+export function fetchOwnershipCandidates(query = ""): Promise<PagedPayload<Employee>> {
+  const params = new URLSearchParams({ role: "ADMIN", pageSize: "100" });
+  if (query.trim()) params.set("q", query.trim());
+  return api<PagedPayload<Employee>>(`/api/v1/employees/?${params.toString()}`);
 }
 
 export function fetchOwner(): Promise<PagedPayload<Employee>> {
diff --git a/apps/internal-ui/src/features/employees/styles-detail.css b/apps/internal-ui/src/features/employees/styles-detail.css
index d0e3215..d651eeb 100644
--- a/apps/internal-ui/src/features/employees/styles-detail.css
+++ b/apps/internal-ui/src/features/employees/styles-detail.css
@@ -667,3 +667,10 @@
     padding-left: 20px;
   }
 }
+
+/* Поиск по кандидатам передачи владения (кадр E9): показывается, только если
+   администраторов больше, чем вернула страница. */
+.employee-transfer-body .employee-transfer-search {
+  width: 100%;
+  margin-bottom: 12px;
+}
diff --git a/apps/internal-ui/src/features/sales/dialogs/context.css b/apps/internal-ui/src/features/sales/dialogs/context.css
index f3b0d96..eed9361 100644
--- a/apps/internal-ui/src/features/sales/dialogs/context.css
+++ b/apps/internal-ui/src/features/sales/dialogs/context.css
@@ -1360,3 +1360,10 @@
   font-size: 12px;
   line-height: 1.45;
 }
+
+/* Поиск в выборе ответственного (кадр G): появляется, когда коллег больше,
+   чем помещается в выдачу справочника. */
+.app-dropdown.ctx-menu .ctx-menu-search {
+  width: 100%;
+  margin: 2px 0 6px;
+}
diff --git a/apps/internal-ui/src/features/sales/dialogs/context/ClientContext.tsx b/apps/internal-ui/src/features/sales/dialogs/context/ClientContext.tsx
index debad1d..322242a 100644
--- a/apps/internal-ui/src/features/sales/dialogs/context/ClientContext.tsx
+++ b/apps/internal-ui/src/features/sales/dialogs/context/ClientContext.tsx
@@ -18,7 +18,6 @@ export function ClientContext({
   dialog,
   detail,
   groups = [],
-  employees = [],
   applyConversation,
   startCall,
   viewerId = null,
@@ -26,7 +25,6 @@ export function ClientContext({
   dialog: ConversationListItem | null;
   detail: ApiConversation | null;
   groups?: Array<EmployeeGroupRef & { color?: string }>;
-  employees?: Array<{ id: number; name: string; avatarUrl?: string | null }>;
   applyConversation?: (updated: ApiConversation) => void;
   startCall?: ((kind: "AUDIO" | "VIDEO") => void) | null;
   viewerId?: number | null;
@@ -131,7 +129,7 @@ export function ClientContext({
       </div>
 
       {detail && applyConversation && (
-        <DialogControls detail={detail} groups={groups} employees={employees} applyConversation={applyConversation} viewerId={viewerId} />
+        <DialogControls detail={detail} groups={groups} applyConversation={applyConversation} viewerId={viewerId} />
       )}
     </div>
   );