The top 20 surplus lines insurance companies write just under 68% of all surplus lines risks in Massachusetts
There are a total of 99 companies that write surplus lines in Massachusetts.
The total direct written premium for these companies in the Commonwealth is $576,602,036.
Of that amount, the top 20 surplus lines companies have a direct written premium of $391,596,478 representing a 67.9% market share.
The remaining 79 companies who write surplus lines in the Commonwealth have a combined direct written premium of $185,005,558 representing a 32.1% market share.
And the top 20 are …..
| Company Name | State | Premium Written in MA | Market Share in MA |
| Lexington Insurance Co. | DE | $96,989,733 | 16.82% |
| Nautilus Insurance Co. | AZ | $31,715,823 | 5.50% |
| Steadfast Insurance Co. | DE | $27,858,444 | 4.83% |
| Columbia Casualty Co. | IL | $25,467,163 | 4.42% |
| AIG Specialty Ins. Co. | IL | $25,076,800 | 4.35% |
| Scottsdale Ins. Co. | OH | $24,371,060 | 4.23% |
| Ironshore Specialty Ins. Co. | AZ | $17,273,219 | 3.00% |
| Indian Harbor Ins. Co. | DE | $16,190,101 | 2.81% |
| Western World Ins. Co. | NH | $15,491,829 | 2.69% |
| Illinois Union Ins. Co. | IL | $13,349,457 | 2.32% |
| Essex Ins. Co. | DE | $12,431,632 | 2.16% |
| Evanston Ins. Co. | IL | $11,855,586 | 2.06% |
| Liberty Surplus Ins. Co. | NH | $11,780,195 | 2.04% |
| Chubb Custom Ins. Co. | NJ | $11,253,939 | 1.95% |
| First Mercury Ins. Co. | IL | $9,971,294 | 1.73% |
| Penn Amer Ins. Co. | PA | $9,421,106 | 1.63% |
| Admiral Ins. Co. | DE | $8,841,051 | 1.53% |
| Landmark Amer Ins. Co. | OK | $7,981,353 | 1.38% |
| Catlin Specialty Ins. Co. | DE | $7,179,304 | 1.25% |
| Houston Casualty Co. | TX | $7,097,389 | 1.23% |
