diff --git a/app/api/deps.py b/app/api/deps.py
index 626fd5b..1dedd51 100644
--- a/app/api/deps.py
+++ b/app/api/deps.py
@@ -1,15 +1,22 @@
 """Reusable FastAPI dependencies."""
 from collections.abc import AsyncGenerator
 
-from fastapi import Depends
+import jwt
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from app.core.config import settings
 from app.core.database import get_session
 from app.core.security import jwt_service, password_hasher
+from app.models.user import User
+from app.repositories.org_repo import OrganizationRepository
 from app.repositories.user_repo import UserRepository
 from app.services.auth_service import AuthService
 from app.services.user_service import UserService
 
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.api_v1_prefix}/auth/token")
+
 
 async def get_db_session() -> AsyncGenerator[AsyncSession, None]:
     """Provide a scoped database session."""
@@ -21,6 +28,10 @@ def get_user_repository(session: AsyncSession = Depends(get_db_session)) -> User
     return UserRepository(session=session)
 
 
+def get_organization_repository(session: AsyncSession = Depends(get_db_session)) -> OrganizationRepository:
+    return OrganizationRepository(session=session)
+
+
 def get_user_service(repo: UserRepository = Depends(get_user_repository)) -> UserService:
     return UserService(user_repository=repo, password_hasher=password_hasher)
 
@@ -33,3 +44,26 @@ def get_auth_service(
         password_hasher=password_hasher,
         jwt_service=jwt_service,
     )
+
+
+async def get_current_user(
+    token: str = Depends(oauth2_scheme),
+    repo: UserRepository = Depends(get_user_repository),
+) -> User:
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+    )
+    try:
+        payload = jwt_service.decode(token)
+        sub = payload.get("sub")
+        if sub is None:
+            raise credentials_exception
+        user_id = int(sub)
+    except (jwt.PyJWTError, TypeError, ValueError):
+        raise credentials_exception from None
+
+    user = await repo.get_by_id(user_id)
+    if user is None:
+        raise credentials_exception
+    return user
diff --git a/app/api/v1/deals/views.py b/app/api/v1/deals/views.py
index d7df5a6..c3d8ffc 100644
--- a/app/api/v1/deals/views.py
+++ b/app/api/v1/deals/views.py
@@ -24,7 +24,7 @@ async def list_deals(
     stage: str | None = None,
     owner_id: int | None = None,
     order_by: str | None = None,
-    order: str | None = Query(default=None, regex="^(asc|desc)$"),
+    order: str | None = Query(default=None, pattern="^(asc|desc)$"),
 ) -> dict[str, str]:
     """Placeholder for deal filtering endpoint."""
     _ = (status_filter,)
diff --git a/app/api/v1/organizations/views.py b/app/api/v1/organizations/views.py
index 9e56a4d..52d2dbc 100644
--- a/app/api/v1/organizations/views.py
+++ b/app/api/v1/organizations/views.py
@@ -1,16 +1,22 @@
-"""Organization-related API stubs."""
+"""Organization-related API endpoints."""
 from __future__ import annotations
 
-from fastapi import APIRouter, status
+from fastapi import APIRouter, Depends
+
+from app.api.deps import get_current_user, get_organization_repository
+from app.models.organization import OrganizationRead
+from app.models.user import User
+from app.repositories.org_repo import OrganizationRepository
 
 router = APIRouter(prefix="/organizations", tags=["organizations"])
 
 
-def _stub(endpoint: str) -> dict[str, str]:
-    return {"detail": f"{endpoint} is not implemented yet"}
+@router.get("/me", response_model=list[OrganizationRead])
+async def list_user_organizations(
+    current_user: User = Depends(get_current_user),
+    repo: OrganizationRepository = Depends(get_organization_repository),
+) -> list[OrganizationRead]:
+    """Return organizations the authenticated user belongs to."""
 
-
-@router.get("/me", status_code=status.HTTP_501_NOT_IMPLEMENTED)
-async def list_user_organizations() -> dict[str, str]:
-    """Placeholder for returning organizations linked to the current user."""
-    return _stub("GET /organizations/me")
+    organizations = await repo.list_for_user(current_user.id)
+    return [OrganizationRead.model_validate(org) for org in organizations]