Ambac Assurance Corporation
Summary
Ambac Assurance Corporation is registered in the United States and entered in the “Registry of insurance companies” under number 18708. Its legal form is Business Corporation (corp.). According to GLEIF, its ultimate parent is AMBAC FINANCIAL GROUP, INC. (United States), which is also its direct parent. That group has 5 subsidiaries with LEIs in 2 countries, 4 of them in the United States. It has 3 direct subsidiaries in GLEIF data; 1 of them has a lapsed LEI. The LEI was first issued on 3 Apr 2013 and the record was last updated on 19 Mar 2026; the next renewal is due by 19 Mar 2027. GLEIF's ISIN mapping lists 11 ISINs for this LEI.
Written from GLEIF data using fixed, reviewed sentence templates.
Data-quality notes (AssetCensus analysis)
No data-quality notes for this entity in this data release.
Company details
| Legal form | Business Corporation (corp.) |
|---|---|
| Register | Registry of insurance companies · Register website |
| Registration number | 18708 |
| Registration authority | National Association of Insurance Commissioners |
| Jurisdiction | United States (US-WI) |
| Registered address | One East Main Street, Suite 500, 53701 Madison, United States |
| Headquarters address | Harborside Plaza 10, 3 Second Street, Suite 305, 07302 Jersey City, United States |
| Category | company or other legal entity |
| Status | active |
| Founded (per GLEIF) | 24 Feb 1970 |
| LEI | 549300RYYRVPPB8NC636 |
| LEI status | active |
| LEI first issued | 3 Apr 2013 |
| LEI record last updated | 19 Mar 2026 |
| Next LEI renewal | 19 Mar 2027 |
| Corroboration of the LEI record | fully corroborated |
Group membership
Relationship to the parent
| Direct parent | Ultimate parent | |
|---|---|---|
| Parent | AMBAC FINANCIAL GROUP, INC. | AMBAC FINANCIAL GROUP, INC. |
| Accounting period | 1 Jan 2024 to 31 Dec 2024 | 1 Jan 2024 to 31 Dec 2024 |
| Evidence | consolidated accounts | consolidated accounts |
| Corroboration | fully corroborated | fully corroborated |
| Relationship start | 1 Nov 2024 | 1 Nov 2024 |
| Recorded at GLEIF since | 17 Mar 2026 | 17 Mar 2026 |
| Last updated | 19 Mar 2026 | 19 Mar 2026 |
| Record status | current | current |
Direct subsidiaries (3)
- AMBAC ASSURANCE UK LIMITED United Kingdom · LONDON
- Ambac Credit Products, LLC United States lapsed · Wilmington
- AMBAC FINANCIAL SERVICES, LLC United States · WILMINGTON
Other subsidiaries of the same direct parent (1)
- Juneau Investments LLC United States lapsed
ISINs mapped to this LEI (11)
US0231382096 · US0231383086 · US0231384076 · US0231385065 · US0231386055 · US0231387046 · US0231388036 · US0231388861 · US023138AB61 · US023138AC45
11 in the GLEIF–ANNA mapping file; first 10 shown. The file covers ISINs issued since the mapping started, not all securities.