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Directory · Maine · Updated 2026-10-18
Insurance companies licensed in Maine
Every property and casualty insurer admitted in Maine and every eligible surplus lines insurer, with NAIC numbers, the lines each is licensed for, who writes the most of each line, and the market of last resort when nobody else will.
Maine's regulator doesn't publish a company list that can be read by machine (or it's behind a CAPTCHA or terms that bar automated use), so this page shows what public sources do say: 193 sureties licensed in Maine per the U.S. Treasury, 4 insurers domiciled here, the state's markets of last resort, and each company's standing in the states that do publish lists.
By Sam Alishahi, independent insurance broker · All states
The market
Who can insure you in Maine
0licensed (admitted) property and casualty insurers known from other states' lists and Treasury data
0eligible surplus lines insurers for hard-to-place risks
193Treasury-certified sureties licensed here
4insurers domiciled in Maine
Bonds
Treasury-certified sureties licensed in Maine
Companies on the U.S. Treasury's Circular 570 (acceptable sureties on federal bonds) that list a Maine license, with each one's federal underwriting limit.
Companies
Insurers domiciled in Maine
4 property and casualty insurers have their home office in Maine. Each company page shows where it is admitted or eligible for surplus lines among the states whose lists are loaded.
| Company | NAIC | Home state | Admitted in | Surplus lines in | Lines |
|---|---|---|---|---|---|
| Maine Employers' Mutual Insurance Company | 11149 | ME | 18 | 0 | General liability, Workers' compensation |
| Medical Mutual Insurance Company of Maine | 36277 | ME | 1 | 0 | — |
| MMG Insurance Company | 15997 | ME | 1 | 0 | Personal auto, General liability |
| Patriot Insurance Company | 32069 | ME | 1 | 0 | Personal auto, Fidelity bonds, General liability +2 more |
Method and source
Maine publishes its company list through a lookup that can't be read by a program, so the table above is built from the other states' lists, NAIC numbers, the U.S. Treasury's surety list and market share reports. A company missing here may still be licensed in Maine; check the regulator's lookup. Lines are the regulator's licensed lines grouped into common names; a license to write a line doesn't mean a company sells it to every kind of customer. "Admitted" means licensed by the state and backed by its guaranty fund; "surplus lines" means eligible to take risks the admitted market declines, without rate or form approval and without guaranty fund protection.
Open to use. Cite "Alishahi Insurance insurance company directory" and link to this page. Download every company: CSV · JSON.
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