| National ASN of Mutual Insurance CO | Related tax-exempt org | Advocacy | IN | 350539460 |
| Namic Service Corporation | Related taxable corporation/trust | Management | IN | 351176317 |
| Namic Insurance Agency | Related taxable corporation/trust | Insurance | IN | 351469772 |
| 1859 Mutual | Related taxable corporation/trust | — | — | — |
| Affinity Mutual Insurance Company | Related taxable corporation/trust | — | — | — |
| Agricultural Workers Mutual AUTO In | Related taxable corporation/trust | — | — | — |
| Alamance Farmers' Mutual Insurance | Related taxable corporation/trust | — | — | — |
| Albany Mutual Insurance Company | Related taxable corporation/trust | — | — | — |
| Allegany CO-OP Insurance Company | Related taxable corporation/trust | — | — | — |
| American Mutual Insurance Associati | Related taxable corporation/trust | — | — | — |
| Arnsberg Farmers' Mutual INS CO | Related taxable corporation/trust | — | — | — |
| Augusta Mutual Insurance Company | Related taxable corporation/trust | — | — | — |
| Baldwin Mutual Insurance Company I | Related taxable corporation/trust | — | — | — |
| Baltimore Equitable Insurance | Related taxable corporation/trust | — | — | — |
| Belle Prairie Mutual Insurance COMP | Related taxable corporation/trust | — | — | — |
| BENT OAK Mutual | Related taxable corporation/trust | — | — | — |
| Bird Island -HAWK Creek Mutual INSU | Related taxable corporation/trust | — | — | — |
| Bishop Mutual Insurance Company | Related taxable corporation/trust | — | — | — |
| Black HAWK Mutual Insurance CO | Related taxable corporation/trust | — | — | — |
| Bloomfield Mutual Insurance Company | Related taxable corporation/trust | — | — | — |
| Boone Farmers Mutual Insurance ASSO | Related taxable corporation/trust | — | — | — |
| Bradford Victor-Adams Mutual Insura | Related taxable corporation/trust | — | — | — |
| Bremen Farmers' Mutual Insurance CO | Related taxable corporation/trust | — | — | — |
| Brethren Mutual Aid Agency INC | Related taxable corporation/trust | — | — | — |
| Briar Creek Mutual Insurance Compan | Related taxable corporation/trust | — | — | — |