diff --git a/backend/benefit/applications/services/ahjo_payload.py b/backend/benefit/applications/services/ahjo_payload.py
index a709ab2e79..748500a0a6 100644
--- a/backend/benefit/applications/services/ahjo_payload.py
+++ b/backend/benefit/applications/services/ahjo_payload.py
@@ -113,7 +113,7 @@ def _prepare_top_level_dict(
         "Agents": [
             {
                 "Role": "sender_initiator",
-                "CorporateName": application.company.name,
+                "CorporateName": truncate_company_name(application.company.name, 100),
                 "ContactPerson": application.contact_person,
                 "Type": "External",
                 "Email": application.company_contact_person_email,
diff --git a/backend/benefit/applications/tests/conftest.py b/backend/benefit/applications/tests/conftest.py
index 5feacfca69..94d2ef5327 100755
--- a/backend/benefit/applications/tests/conftest.py
+++ b/backend/benefit/applications/tests/conftest.py
@@ -27,7 +27,10 @@
 from applications.services.ahjo_decision_service import (
     replace_decision_template_placeholders,
 )
-from applications.services.ahjo_payload import resolve_payload_language
+from applications.services.ahjo_payload import (
+    resolve_payload_language,
+    truncate_company_name,
+)
 from applications.services.application_alteration_csv_report import (
     AlterationCsvConfigurableFields,
     ApplicationAlterationCsvService,
@@ -435,7 +438,7 @@ def ahjo_open_case_top_level_dict(decided_application):
         "Agents": [
             {
                 "Role": "sender_initiator",
-                "CorporateName": application.company.name,
+                "CorporateName": truncate_company_name(application.company.name, 100),
                 "ContactPerson": application.contact_person,
                 "Type": "External",
                 "Email": application.company_contact_person_email,