Stillwater Insurance Company · NAIC 25180
Where Stillwater Insurance Company is admitted, where it's eligible for surplus lines, the lines it's licensed for and how much of each it writes, from state regulators' public lists and market share reports.
Stillwater Insurance Company (NAIC 25180) is a property and casualty insurer domiciled in California, part of Wt Holdings Group. State regulators list it as licensed (admitted) in Alaska, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Kentucky, Massachusetts, Maryland, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Nebraska, New Jersey, Nevada, New York, Ohio, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Washington, Wisconsin, Wyoming. It ranked #33 of 98 in California homeowners in 2025 (0.6% share). It ranked #35 of 128 in California earthquake in 2025 (0.1% share). It ranked #36 of 49 in Washington commercial property (fire and allied lines) in 2025 (0.5% share).
By Sam Alishahi, independent insurance broker · All companies
Where it's licensed
States whose regulator lists are loaded: Alaska, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Iowa, Idaho, Illinois, Kentucky, Massachusetts, Maryland, Minnesota, Missouri, Mississippi, Montana, North Carolina, North Dakota, Nebraska, New Jersey, Nevada, New York, Ohio, Oklahoma, Oregon, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Washington, Wisconsin, West Virginia, Wyoming. Not on the lists we have for Montana, West Virginia, which doesn't by itself mean it isn't licensed there.
| State | Status | Lines licensed | Since | Source |
|---|---|---|---|---|
| Alaska | Admitted (licensed) | — | — | Alaska, 2026-10-18 |
| California | Admitted (licensed) | Personal auto, Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake, Flood, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines) | — | California Department of Insurance, 2026-10-17 |
| Colorado | Admitted (licensed) | Commercial package (BOP, CMP), General liability | — | Colorado, 2026-10-18 |
| Connecticut | Admitted (licensed) | — | — | Connecticut, 2026-10-18 |
| Delaware | Admitted (licensed) | — | — | Delaware, 2026-10-18 |
| Florida | Admitted (licensed) | Personal auto, Commercial package (BOP, CMP), Earthquake, Farm and crop, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines), Surety bonds | — | Florida Office of Insurance Regulation, 2026-10-18 |
| Georgia | Admitted (licensed) | General liability, Commercial property (fire and allied lines), Surety bonds, Workers' compensation | — | Georgia, 2026-10-18 |
| Hawaii | Admitted (licensed) | — | — | Hawaii, 2026-10-18 |
| Idaho | Admitted (licensed) | Fidelity bonds, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation | — | Idaho, 2026-10-18 |
| Illinois | Admitted (licensed) | Personal auto, Commercial package (BOP, CMP), General liability | — | Illinois, 2026-10-18 |
| Iowa | Admitted (licensed) | — | — | Iowa, 2026-10-18 |
| Kentucky | Admitted (licensed) | — | — | Kentucky Department of Insurance, 2026-10-17 |
| Maryland | Admitted (licensed) | — | — | Maryland Insurance Administration, 2026-10-17 |
| Massachusetts | Admitted (licensed) | Personal auto, Fidelity bonds, General liability, Surety bonds | — | Massachusetts, 2026-10-18 |
| Minnesota | Admitted (licensed) | — | — | Minnesota, 2026-10-18 |
| Mississippi | Admitted (licensed) | Personal auto, Equipment breakdown, Farm and crop, Glass, Homeowners, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds | 04-01-2003 | Mississippi Insurance Department, 2026-10-17 |
| Missouri | Admitted (licensed) | Personal auto, Commercial package (BOP, CMP), Earthquake, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines) | — | Missouri, 2026-10-18 |
| Nebraska | Admitted (licensed) | — | — | Nebraska, 2026-10-18 |
| Nevada | Admitted (licensed) | General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds | — | Nevada Division of Insurance, 2026-10-17 |
| New Jersey | Admitted (licensed) | — | — | New Jersey, 2026-10-18 |
| New York | Admitted (licensed) | — | — | Excess Line Association of New York (DFS-licensed and eligible excess line insurers), 2026-10-17 |
| North Carolina | Admitted (licensed) | Commercial package (BOP, CMP), General liability | — | North Carolina, 2026-10-18 |
| North Dakota | Admitted (licensed) | — | — | North Dakota, 2026-10-18 |
| Ohio | Admitted (licensed) | — | — | Ohio Department of Insurance, 2026-10-17 |
| Oklahoma | Admitted (licensed) | Earthquake, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines) | — | Oklahoma, 2026-10-18 |
| Oregon | Admitted (licensed) | Commercial package (BOP, CMP), General liability | — | Oregon, 2026-10-18 |
| Rhode Island | Admitted (licensed) | — | — | Rhode Island, 2026-10-18 |
| South Carolina | Admitted (licensed) | — | — | South Carolina, 2026-10-18 |
| South Dakota | Admitted (licensed) | Commercial package (BOP, CMP), Earthquake, Flood, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines) | — | South Dakota, 2026-10-18 |
| Tennessee | Admitted (licensed) | — | — | Tennessee, 2026-10-18 |
| Texas | Admitted (licensed) | Personal auto, Equipment breakdown, Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake, Fidelity bonds, Flood, Glass, Homeowners, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds | 2002/12/10 | Texas Department of Insurance, 2026-10-17 |
| Utah | Admitted (licensed) | — | — | Utah, 2026-10-18 |
| Washington | Admitted (licensed) | Commercial property (fire and allied lines) | — | Washington Office of the Insurance Commissioner and the Surplus Line Association of Washington, 2026-10-17 |
| Wisconsin | Admitted (licensed) | Personal auto, Commercial package (BOP, CMP) | — | Wisconsin, 2026-10-18 |
| Wyoming | Admitted (licensed) | — | — | Wyoming, 2026-10-18 |
Method and source
Each row comes from the named regulator's public company list on the date shown, joined by NAIC number. "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 or guaranty fund protection. Premium and rank come from state market share reports that list every company. This is a public-records directory, not a rating or recommendation; for the company's own filings use the NAIC's Consumer Information Source.
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