Who writes aircraft and aviation in Illinois
Ranked by direct premium written in 2025 from the Illinois market share report (every company, not a top-N list).
33 companies wrote aircraft and aviation in Illinois in 2025, $114.0M in direct premium. National Union Fire Insurance Company of Pittsburgh, Pennsylvania led with 25.7%; the top five hold 61%. 78 companies are licensed for the line.
By Sam Alishahi, independent insurance broker · All lines in Illinois
The companies
| # | Company | NAIC | Home state | Status here | Premium | Share |
|---|---|---|---|---|---|---|
| 1 | National Union Fire Insurance Company of Pittsburgh, Pennsylvania | 19445 | PA | Admitted (licensed) | $29.3M | 25.74% |
| 2 | Starr Indemnity and Liability Company | 38318 | TX | Admitted (licensed) | $14.0M | 12.29% |
| 3 | Allianz Global Risks US Insurance Company | 35300 | IL | Admitted (licensed) | $9.8M | 8.61% |
| 4 | American Alternative Insurance Corporation | 19720 | DE | Admitted (licensed) | $9.6M | 8.43% |
| 5 | XL Specialty Insurance Company | 37885 | DE | Admitted (licensed) | $6.7M | 5.84% |
| 6 | National Liability And Fire Insurance Company | 20052 | CT | Admitted (licensed) | $5.4M | 4.74% |
| 7 | Ace American Insurance Company | 22667 | PA | Admitted (licensed) | $5.4M | 4.74% |
| 8 | Endurance American Insurance Company | 10641 | DE | Admitted (licensed) | $4.7M | 4.08% |
| 9 | Old Republic Insurance Company | 24147 | PA | Admitted (licensed) | $4.3M | 3.77% |
| 10 | QBE Insurance (Europe) Limited | 39217 | PA | Admitted (licensed) | $3.6M | 3.17% |
| 11 | Continental Indemnity Company | 28258 | NM | Admitted (licensed) | $2.9M | 2.59% |
| 12 | National Indemnity Company | 20087 | NE | Admitted (licensed) | $2.4M | 2.14% |
| 13 | Great American Insurance Company | 16691 | OH | Admitted (licensed) | $1.9M | 1.62% |
| 14 | SiriusPoint America Insurance Company | 38776 | NY | Admitted (licensed) | $1.6M | 1.44% |
| 15 | Tokio Marine America Insurance Company | 10945 | NY | Admitted (licensed) | $1.6M | 1.43% |
| 16 | U.S. Specialty Insurance Company | 29599 | TX | Admitted (licensed) | $1.3M | 1.16% |
| 17 | American Commerce Insurance Company | 19941 | OH | Admitted (licensed) | $1.3M | 1.15% |
| 18 | Harco National Insurance Company | 26433 | IL | Admitted (licensed) | $1.3M | 1.10% |
| 19 | Avemco Insurance Company | 10367 | MD | Admitted (licensed) | $1.2M | 1.06% |
| 20 | Westchester Fire Insurance Company | 10030 | PA | Admitted (licensed) | $1.1M | 0.98% |
| 21 | Tokio Marine Specialty Insurance Company | 23850 | DE | Admitted (licensed) | $837,726 | 0.73% |
| 22 | StarStone National Insurance Company | 25496 | DE | Admitted (licensed) | $648,493 | 0.57% |
| 23 | HDI Global Select Insurance Company | 14265 | IL | Admitted (licensed) | $625,439 | 0.55% |
| 24 | MS Transverse Insurance Company | 21075 | TX | Admitted (licensed) | $487,241 | 0.43% |
| 25 | Starr Surplus Lines Insurance Company | 13604 | TX | Admitted (licensed) | $424,608 | 0.37% |
| 26 | Imperium Insurance Company | 35408 | TX | Admitted (licensed) | $394,390 | 0.35% |
| 27 | Falls Lake National Insurance Company | 31925 | OH | Admitted (licensed) | $334,623 | 0.29% |
| 28 | Obsidian Insurance Company | 35602 | OH | Admitted (licensed) | $289,407 | 0.25% |
| 29 | National Fire and Marine Insurance Company | 20079 | NE | Admitted (licensed) | $278,682 | 0.24% |
| 30 | Kinsale Insurance Company | 38920 | AR | Admitted (licensed) | $107,891 | 0.09% |
| 31 | Great American Alliance Insurance Company | 26832 | OH | Admitted (licensed) | $40,495 | 0.04% |
| 32 | Lyndon Southern Insurance Company | 10051 | DE | Admitted (licensed) | $20,151 | 0.02% |
| 33 | State National Insurance Company, Inc. | 12831 | TX | Admitted (licensed) | $2,009 | 0.00% |
Method and source
Source: the Illinois insurance regulator company list, read 2026-10-18. IDOI 2025 Market Share Report: Property and Casualty (published March 2026, 2025 annual-statement data). Lists every company with Illinois business written on the P&C statement: licensed companies, surplus lines insurers and risk retention groups together, with no status/type flag, so type is '' for all rows and the list is NOT a certificate-of-authority roster (a licensed company with zero IL premium and zero losses is omitted; non-admitted writers are included). 'lines' = P&C statement lines of business the company reported IL premium or losses under (48 of 54 lines have entries), a proxy for lines of authority. No 'since' date in the source. No Illinois surplus lines eligibility list exists (IL has no white list). 26 companies had a name or domicile cell missing in at least one PDF row; filled from the same NAIC code's other rows. "Premium" is direct premium written in the state for the year shown; "share" is that company's part of the state total for the line. A company can be licensed for a line and write none of it, and a surplus lines insurer can write a line without a state license for it.
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