diff --git a/src/registrar/management/commands/load_organization_data.py b/src/registrar/management/commands/load_organization_data.py
index 2d6d7adff..d98365a9b 100644
--- a/src/registrar/management/commands/load_organization_data.py
+++ b/src/registrar/management/commands/load_organization_data.py
@@ -64,7 +64,7 @@ class Command(BaseCommand):
                 for key, value in data.items():
                     if value is None or value.strip() == "":
                         continue
-                    
+
                     # If any key in skipped_fields has a value, then
                     # we override what is specified in the JSON.
                     if options not in skipped_fields:
@@ -163,7 +163,7 @@ class Command(BaseCommand):
 
         # Start with all DomainInformation objects
         domain_informations = DomainInformation.objects.all()
-        domain_informations_dict = {di.domain.name: di for di in domain_informations}
+        domain_informations_dict = {di.domain.name: di for di in domain_informations if di.domain is not None}
 
         # Then, use each domain object to map TransitionDomain <--> DomainInformation
         # Fetches all DomainInformations in one query.
@@ -177,7 +177,7 @@ class Command(BaseCommand):
             zipcode__isnull=True,
         )
 
-        filtered_domain_informations_dict = {di.domain.name: di for di in domain_informations}
+        filtered_domain_informations_dict = {di.domain.name: di for di in domain_informations if di.domain is not None}
         for item in transition_domains:
             if item.domain_name not in domain_informations_dict:
                 logger.error(f"Could not add {item.domain_name}. Domain does not exist.")
@@ -196,6 +196,9 @@ class Command(BaseCommand):
             # Based on the current domain, grab the right DomainInformation object.
             current_domain_information = filtered_domain_informations_dict[item.domain_name]
 
+            if current_domain_information.domain is None or current_domain_information.domain.name is None:
+                raise LoadOrganizationError(code=LoadOrganizationErrorCodes.DOMAIN_NAME_WAS_NONE)
+
             # Update fields
             current_domain_information.address_line1 = item.address_line
             current_domain_information.city = item.city
diff --git a/src/registrar/management/commands/utility/extra_transition_domain_helper.py b/src/registrar/management/commands/utility/extra_transition_domain_helper.py
index 0ad6fa2ab..06b210950 100644
--- a/src/registrar/management/commands/utility/extra_transition_domain_helper.py
+++ b/src/registrar/management/commands/utility/extra_transition_domain_helper.py
@@ -9,7 +9,7 @@ import logging
 
 import os
 import sys
-from typing import Dict
+from typing import Dict, List
 from django.core.paginator import Paginator
 from registrar.models.transition_domain import TransitionDomain
 from registrar.utility.errors import LoadOrganizationError, LoadOrganizationErrorCodes
@@ -781,7 +781,7 @@ class OrganizationDataLoader:
         # options.infer_filenames will always be false when not SETTING.DEBUG
         self.parsed_data.parse_all_files(options.infer_filenames)
 
-        self.tds_to_update = []
+        self.tds_to_update: List[TransitionDomain] = []
 
     def update_organization_data_for_all(self):
         """Updates org data for all TransitionDomains"""
@@ -870,7 +870,7 @@ class OrganizationDataLoader:
 
         return transition_domain
 
-    def get_org_info(self, domain_name) -> OrganizationAdhoc:
+    def get_org_info(self, domain_name) -> OrganizationAdhoc | None:
         """Maps an id given in get_domain_data to a organization_adhoc
         record which has its corresponding definition"""
         # Get a row in the domain_additional file. The id is the domain_name.
diff --git a/src/registrar/utility/errors.py b/src/registrar/utility/errors.py
index ba9e9aaa6..4e0745a2d 100644
--- a/src/registrar/utility/errors.py
+++ b/src/registrar/utility/errors.py
@@ -64,9 +64,11 @@ class LoadOrganizationErrorCodes(IntEnum):
         - 2 UPDATE_DOMAIN_INFO_FAILED
         - 3 EMPTY_TRANSITION_DOMAIN_TABLE
     """
+
     TRANSITION_DOMAINS_NOT_FOUND = 1
     UPDATE_DOMAIN_INFO_FAILED = 2
     EMPTY_TRANSITION_DOMAIN_TABLE = 3
+    DOMAIN_NAME_WAS_NONE = 4
 
 
 class LoadOrganizationError(Exception):
@@ -79,7 +81,8 @@ class LoadOrganizationError(Exception):
             "Could not find all desired TransitionDomains. " "(Possible data corruption?)"
         ),
         LoadOrganizationErrorCodes.UPDATE_DOMAIN_INFO_FAILED: "Failed to update DomainInformation",
-        LoadOrganizationErrorCodes.EMPTY_TRANSITION_DOMAIN_TABLE: "No TransitionDomains exist. Cannot update."
+        LoadOrganizationErrorCodes.EMPTY_TRANSITION_DOMAIN_TABLE: "No TransitionDomains exist. Cannot update.",
+        LoadOrganizationErrorCodes.DOMAIN_NAME_WAS_NONE: "DomainInformation was updated, but domain was None",
     }
 
     def __init__(self, *args, code=None, **kwargs):