diff --git a/negodata/backend/crud/card_crud.py b/negodata/backend/crud/card_crud.py
index 3e2b122..a7cc288 100644
--- a/negodata/backend/crud/card_crud.py
+++ b/negodata/backend/crud/card_crud.py
@@ -5,7 +5,7 @@ from sqlalchemy import select, func, and_, or_, update, case
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from common.database.db_session_manager import DB_SESSION_MNG
-from common.database.model.models import users, chats, sessions
+from common.database.model.models import users, chats, sessions, quotations
 from common.enums import ErrorType, SessionStatus
 from common.logger import LOG
 from common.utils.gtime import GTime
@@ -38,7 +38,7 @@ class ICardCRUD(ABC):
         pass
 
     @abstractmethod
-    async def card_success_map(self, cdb: AsyncSession) -> Tuple[ErrorType, dict]:
+    async def card_success_map(self, cdb: AsyncSession, company_id) -> Tuple[ErrorType, dict]:
         pass
 
     @abstractmethod
@@ -83,9 +83,10 @@ class CardCRUD(ICardCRUD):
             LOG.e_no_callstack(ex)
             return ErrorType.DB_RUN_FAILED, [], 0
 
-    async def card_success_map(self, cdb: AsyncSession) -> Tuple[ErrorType, dict]:
+    async def card_success_map(self, cdb: AsyncSession, company_id) -> Tuple[ErrorType, dict]:
         # 카드별 성공률: 카드 사용(card_used_yn) 채팅이 속한 세션의 타결(DONE) 비율.
         # {card_id(UUID): (used_sessions, won_sessions)}. 성공=세션 DONE(협상완료).
+        # 집계 범위는 내 회사 견적에서 쓰인 이력만 — quotations 까지 조인해 작성자 회사로 좁힌다.
         try:
             stmt = (
                 select(
@@ -94,7 +95,15 @@ class CardCRUD(ICardCRUD):
                     func.count(func.distinct(case((sessions.status == SessionStatus.DONE.value, chats.session_id)))).label("won"),
                 )
                 .join(sessions, sessions.session_id == chats.session_id)
-                .where(chats.card_used_yn == True, chats.card_id.isnot(None), chats.deleted == False)  # noqa: E712
+                .join(quotations, quotations.qt_id == sessions.quotation_id)
+                .where(
+                    chats.card_used_yn == True,  # noqa: E712
+                    chats.card_id.isnot(None),
+                    chats.deleted == False,  # noqa: E712
+                    sessions.deleted == False,  # noqa: E712
+                    quotations.deleted == False,  # noqa: E712
+                    quotations.user_id.in_(select(users.user_id).where(users.company_id == company_id)),
+                )
                 .group_by(chats.card_id)
             )
             err, rows = await DB_SESSION_MNG.execute(cdb, stmt)
diff --git a/negodata/backend/services/card_service.py b/negodata/backend/services/card_service.py
index b993f63..cff50b2 100644
--- a/negodata/backend/services/card_service.py
+++ b/negodata/backend/services/card_service.py
@@ -142,7 +142,7 @@ class CardService:
         # 카드 성공률(#12) — 카드 사용→타결 집계를 page 카드에 매핑.
         _e, success_map = await DB_SESSION_MNG.execute_lambda(
             nego_cards.DBType(), DBWRType.DB_READ.value,
-            lambda s: self.card_crud.card_success_map(s),
+            lambda s: self.card_crud.card_success_map(s, company_uuid),
         )
         success_map = success_map or {}
         for c in page: