diff --git a/backend/btrixcloud/crawlconfigs.py b/backend/btrixcloud/crawlconfigs.py
index 1dcfabc615..37e6695743 100644
--- a/backend/btrixcloud/crawlconfigs.py
+++ b/backend/btrixcloud/crawlconfigs.py
@@ -27,6 +27,11 @@
 
 import aiohttp
 from fastapi import APIRouter, Depends, HTTPException, Query, Request, Response
+from motor.motor_asyncio import (
+    AsyncIOMotorClient,
+    AsyncIOMotorClientSession,
+    AsyncIOMotorDatabase,
+)
 import pymongo
 
 from .pagination import DEFAULT_PAGE_SIZE, paginated_format
@@ -126,8 +131,8 @@ class CrawlConfigOps:
 
     def __init__(
         self,
-        dbclient,
-        mdb,
+        dbclient: AsyncIOMotorClient,
+        mdb: AsyncIOMotorDatabase,
         user_manager,
         org_ops,
         crawl_manager,
@@ -190,7 +195,7 @@ def __init__(
             raise TypeError("The channel list must include a 'default' channel")
 
         self._crawler_proxies_last_updated = None
-        self._crawler_proxies_map = None
+        self._crawler_proxies_map: dict[str, CrawlerProxy] | None = None
 
         if DEFAULT_PROXY_ID and DEFAULT_PROXY_ID not in self.get_crawler_proxies_map():
             raise ValueError(
@@ -648,7 +653,10 @@ async def update_crawl_config(
             orig_dict["id"] = uuid4()
 
             last_rev = ConfigRevision(**orig_dict)
-            last_rev = await self.config_revs.insert_one(last_rev.to_dict())
+            # [TODO] 2025-12-04 emma: I don't think this needs to be assigned to
+            # a variable at all, but I'm not 100% sure so for now I'm ignoring
+            # the type mismatch here.
+            last_rev = await self.config_revs.insert_one(last_rev.to_dict())  # type: ignore
 
         # set update query
         query = update.dict(exclude_unset=True)
@@ -914,10 +922,14 @@ async def mark_profiles_in_use(self, profiles: List[Profile], org: Organization)
 
         return profiles
 
-    async def get_running_crawl(self, cid: UUID) -> Optional[CrawlOut]:
+    async def get_running_crawl(
+        self, cid: UUID, session: AsyncIOMotorClientSession | None = None
+    ) -> Optional[CrawlOut]:
         """Return the id of currently running crawl for this config, if any"""
         # crawls = await self.crawl_manager.list_running_crawls(cid=crawlconfig.id)
-        crawls, _ = await self.crawl_ops.list_crawls(cid=cid, running_only=True)
+        crawls, _ = await self.crawl_ops.list_crawls(
+            cid=cid, running_only=True, session=session
+        )
 
         if len(crawls) == 1:
             return crawls[0]
@@ -1090,13 +1102,18 @@ async def get_crawl_config_revs(
         return revisions, total
 
     async def make_inactive_or_delete(
-        self, crawlconfig: CrawlConfig, org: Organization
+        self,
+        crawlconfig: CrawlConfig,
+        org: Organization,
+        session: AsyncIOMotorClientSession | None = None,
     ):
         """Make config inactive if crawls exist, otherwise move to inactive list"""
 
         query = {"inactive": True}
 
-        is_running = await self.get_running_crawl(crawlconfig.id) is not None
+        is_running = (
+            await self.get_running_crawl(crawlconfig.id, session=session) is not None
+        )
 
         if is_running:
             raise HTTPException(status_code=400, detail="crawl_running_cant_deactivate")
@@ -1107,7 +1124,8 @@ async def make_inactive_or_delete(
         # if no crawls have been run, actually delete
         if not crawlconfig.crawlAttemptCount:
             result = await self.crawl_configs.delete_one(
-                {"_id": crawlconfig.id, "oid": crawlconfig.oid}
+                {"_id": crawlconfig.id, "oid": crawlconfig.oid},
+                session=session,
             )
 
             if result.deleted_count != 1:
@@ -1116,7 +1134,7 @@ async def make_inactive_or_delete(
             if crawlconfig and crawlconfig.config.seedFileId:
                 try:
                     await self.file_ops.delete_seed_file(
-                        crawlconfig.config.seedFileId, org
+                        crawlconfig.config.seedFileId, org, session=session
                     )
                 except HTTPException:
                     pass
@@ -1127,6 +1145,7 @@ async def make_inactive_or_delete(
             if not await self.crawl_configs.find_one_and_update(
                 {"_id": crawlconfig.id, "inactive": {"$ne": True}},
                 {"$set": query},
+                session=session,
             ):
                 raise HTTPException(status_code=404, detail="failed_to_deactivate")
 
@@ -1142,7 +1161,9 @@ async def do_make_inactive(self, crawlconfig: CrawlConfig, org: Organization):
 
         async with await self.dbclient.start_session() as sesh:
             async with sesh.start_transaction():
-                status = await self.make_inactive_or_delete(crawlconfig, org)
+                status = await self.make_inactive_or_delete(
+                    crawlconfig, org, session=sesh
+                )
 
         return {"success": True, "status": status}
 
@@ -1249,10 +1270,12 @@ async def run_now_internal(
         await self.check_if_too_many_waiting_crawls(org)
 
         if crawlconfig.profileid:
-            profile_filename, crawlconfig.proxyId, _ = (
-                await self.profiles.get_profile_filename_proxy_channel(
-                    crawlconfig.profileid, org
-                )
+            (
+                profile_filename,
+                crawlconfig.proxyId,
+                _,
+            ) = await self.profiles.get_profile_filename_proxy_channel(
+                crawlconfig.profileid, org
             )
             if not profile_filename:
                 raise HTTPException(status_code=400, detail="invalid_profile_id")
@@ -1612,8 +1635,8 @@ async def stats_recompute_all(crawl_configs, crawls, cid: UUID):
 # pylint: disable=redefined-builtin,invalid-name,too-many-locals,too-many-arguments
 def init_crawl_config_api(
     app,
-    dbclient,
-    mdb,
+    dbclient: AsyncIOMotorClient,
+    mdb: AsyncIOMotorDatabase,
     user_dep,
     user_manager,
     org_ops,
diff --git a/backend/btrixcloud/crawls.py b/backend/btrixcloud/crawls.py
index eb273b5c7e..1ad6705f94 100644
--- a/backend/btrixcloud/crawls.py
+++ b/backend/btrixcloud/crawls.py
@@ -25,6 +25,7 @@
 
 from fastapi import Depends, HTTPException, Query, Request
 from fastapi.responses import StreamingResponse
+from motor.motor_asyncio import AsyncIOMotorClientSession
 from redis import asyncio as exceptions
 from redis.asyncio.client import Redis
 import pymongo
@@ -183,6 +184,7 @@ async def list_crawls(
         sort_by: Optional[str] = None,
         sort_direction: int = -1,
         resources: bool = False,
+        session: AsyncIOMotorClientSession | None = None,
     ):
         """List all finished crawls from the db"""
         # pylint: disable=too-many-locals,too-many-branches,too-many-statements
@@ -330,7 +332,7 @@ async def list_crawls(
         )
 
         # Get total
-        cursor = self.crawls.aggregate(aggregate)
+        cursor = self.crawls.aggregate(aggregate, session=session)
         results = await cursor.to_list(length=1)
         result = results[0]
         items = result["items"]
diff --git a/backend/btrixcloud/file_uploads.py b/backend/btrixcloud/file_uploads.py
index 7d322f9f40..8cff9ff24a 100644
--- a/backend/btrixcloud/file_uploads.py
+++ b/backend/btrixcloud/file_uploads.py
@@ -9,6 +9,7 @@
 
 import aiohttp
 from fastapi import APIRouter, Depends, HTTPException, Request
+from motor.motor_asyncio import AsyncIOMotorClientSession, AsyncIOMotorDatabase
 import pymongo
 
 from .models import (
@@ -49,7 +50,7 @@ class FileUploadOps:
 
     # pylint: disable=too-many-locals, too-many-arguments, invalid-name
 
-    def __init__(self, mdb, org_ops, storage_ops):
+    def __init__(self, mdb: AsyncIOMotorDatabase, org_ops, storage_ops):
         self.files = mdb["file_uploads"]
         self.crawl_configs = mdb["crawl_configs"]
         self.crawls = mdb["crawls"]
@@ -72,6 +73,7 @@ async def get_file_raw(
         file_id: UUID,
         org: Optional[Organization] = None,
         type_: Optional[str] = None,
+        session: AsyncIOMotorClientSession | None = None,
     ) -> Dict[str, Any]:
         """Get raw file from db"""
         query: dict[str, object] = {"_id": file_id}
@@ -81,7 +83,7 @@ async def get_file_raw(
         if type_:
             query["type"] = type_
 
-        res = await self.files.find_one(query)
+        res = await self.files.find_one(query, session=session)
 
         if not res:
             raise HTTPException(status_code=404, detail="file_not_found")
@@ -93,9 +95,10 @@ async def get_seed_file(
         file_id: UUID,
         org: Optional[Organization] = None,
         type_: Optional[str] = None,
+        session: AsyncIOMotorClientSession | None = None,
     ) -> SeedFile:
         """Get file by UUID"""
-        file_raw = await self.get_file_raw(file_id, org, type_)
+        file_raw = await self.get_file_raw(file_id, org, type_, session=session)
         return SeedFile.from_dict(file_raw)
 
     async def get_seed_file_out(
@@ -316,7 +319,10 @@ async def _parse_seed_info_from_file(
         return first_seed, seed_count
 
     async def delete_seed_file(
-        self, file_id: UUID, org: Organization
+        self,
+        file_id: UUID,
+        org: Organization,
+        session: AsyncIOMotorClientSession | None = None,
     ) -> Dict[str, bool]:
         """Delete user-uploaded file from storage and db"""
         file = await self.get_seed_file(file_id, org)
@@ -337,7 +343,7 @@ async def delete_seed_file(
         await self.files.delete_one({"_id": file_id, "oid": org.id})
         if file.type == "seedFile":
             await self.org_ops.inc_org_bytes_stored_field(
-                org.id, "bytesStoredSeedFiles", -file.size
+                org.id, "bytesStoredSeedFiles", -file.size, session=session
             )
 
         return {"success": True}
diff --git a/backend/btrixcloud/orgs.py b/backend/btrixcloud/orgs.py
index 41dab0cec1..cfb8b9b03c 100644
--- a/backend/btrixcloud/orgs.py
+++ b/backend/btrixcloud/orgs.py
@@ -14,6 +14,7 @@
 
 from typing import Optional, TYPE_CHECKING, Dict, Callable, List, AsyncGenerator, Any
 
+from motor.motor_asyncio import AsyncIOMotorClientSession
 from pydantic import ValidationError
 from pymongo import ReturnDocument
 from pymongo.errors import AutoReconnect, DuplicateKeyError
@@ -1439,10 +1440,12 @@ async def delete_org_and_data(
     async def recalculate_storage(self, org: Organization) -> dict[str, bool]:
         """Recalculate org storage use"""
         try:
-            total_crawl_size, crawl_size, upload_size = (
-                await self.base_crawl_ops.calculate_org_crawl_file_storage(
-                    org.id,
-                )
+            (
+                total_crawl_size,
+                crawl_size,
+                upload_size,
+            ) = await self.base_crawl_ops.calculate_org_crawl_file_storage(
+                org.id,
             )
             profile_size = await self.profile_ops.calculate_org_profile_file_storage(
                 org.id
@@ -1485,11 +1488,19 @@ async def set_last_crawl_finished(self, oid: UUID):
             {"$set": {"lastCrawlFinished": last_crawl_finished}},
         )
 
-    async def inc_org_bytes_stored_field(self, oid: UUID, field: str, size: int):
+    async def inc_org_bytes_stored_field(
+        self,
+        oid: UUID,
+        field: str,
+        size: int,
+        session: AsyncIOMotorClientSession | None = None,
+    ):
         """Increment specific org bytesStored* field"""
         try:
             await self.orgs.find_one_and_update(
-                {"_id": oid}, {"$inc": {field: size, "bytesStored": size}}
+                {"_id": oid},
+                {"$inc": {field: size, "bytesStored": size}},
+                session=session,
             )
         # pylint: disable=broad-exception-caught
         except Exception as err: