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Directory · Company · Updated 2026-10-18

Trumbull Insurance Company · NAIC 27120

Where Trumbull 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.

Trumbull Insurance Company (NAIC 27120) is a property and casualty insurer domiciled in Connecticut, part of Hartford Fire & Casualty Group. State regulators list it as licensed (admitted) in Alaska, California, Colorado, Connecticut, Delaware, Florida, Georgia, 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 #17 of 329 in Texas commercial auto in 2025 (1.0% share). It ranked #35 of 40 in Washington homeowners in 2025 (0.7% share). It ranked #36 of 128 in California earthquake in 2025 (0.1% share).

By Sam Alishahi, independent insurance broker · All companies

By state

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 Hawaii, Montana, West Virginia, which doesn't by itself mean it isn't licensed there.

StateStatusLines licensedSinceSource
AlaskaAdmitted (licensed)——Alaska, 2026-10-18
CaliforniaAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—California Department of Insurance, 2026-10-17
ColoradoAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—Colorado, 2026-10-18
ConnecticutAdmitted (licensed)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 2026-10-18
FloridaAdmitted (licensed)Personal auto, Commercial auto—Florida Office of Insurance Regulation, 2026-10-18
GeorgiaAdmitted (licensed)General liability, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—Georgia, 2026-10-18
IdahoAdmitted (licensed)Fidelity bonds, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—Idaho, 2026-10-18
IllinoisAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Earthquake, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines), Workers' compensation—Illinois, 2026-10-18
IowaAdmitted (licensed)——Iowa, 2026-10-18
KentuckyAdmitted (licensed)——Kentucky Department of Insurance, 2026-10-17
MarylandAdmitted (licensed)——Maryland Insurance Administration, 2026-10-17
MassachusettsAdmitted (licensed)Personal auto, Fidelity bonds, General liability, Surety bonds, Workers' compensation—Massachusetts, 2026-10-18
MinnesotaAdmitted (licensed)——Minnesota, 2026-10-18
MississippiAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown, Farm and crop, Fidelity bonds, Glass, Homeowners, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation11-01-1995Mississippi Insurance Department, 2026-10-17
MissouriAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—Missouri, 2026-10-18
NebraskaAdmitted (licensed)——Nebraska, 2026-10-18
NevadaAdmitted (licensed)General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—Nevada Division of Insurance, 2026-10-17
New JerseyAdmitted (licensed)——New Jersey, 2026-10-18
New YorkAdmitted (licensed)——Excess Line Association of New York (DFS-licensed and eligible excess line insurers), 2026-10-17
North CarolinaAdmitted (licensed)Personal auto, Commercial auto, Inland marine, General liability, Workers' compensation—North Carolina, 2026-10-18
North DakotaAdmitted (licensed)——North Dakota, 2026-10-18
OhioAdmitted (licensed)——Ohio Department of Insurance, 2026-10-17
OklahomaAdmitted (licensed)Personal auto, Equipment breakdown, Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—Oklahoma, 2026-10-18
OregonAdmitted (licensed)Personal auto, Commercial auto, Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—Oregon, 2026-10-18
Rhode IslandAdmitted (licensed)——Rhode Island, 2026-10-18
South CarolinaAdmitted (licensed)——South Carolina, 2026-10-18
South DakotaAdmitted (licensed)Personal auto, Commercial auto, Earthquake, Homeowners, Inland marine, General liability, Workers' compensation—South Dakota, 2026-10-18
TennesseeAdmitted (licensed)——Tennessee, 2026-10-18
TexasAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Farm and crop, Fidelity bonds, Glass, Homeowners, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation1995/09/11Texas Department of Insurance, 2026-10-17
UtahAdmitted (licensed)——Utah, 2026-10-18
WashingtonAdmitted (licensed)Earthquake, Homeowners—Washington Office of the Insurance Commissioner and the Surplus Line Association of Washington, 2026-10-17
WisconsinAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Homeowners, General liability, Workers' compensation—Wisconsin, 2026-10-18
WyomingAdmitted (licensed)——Wyoming, 2026-10-18
What it writes

Premium and rank by line

From the regulators that publish every company's direct premium by line.

Line and stateRankPremium writtenShareYear
Earthquake in California#36 of 128$1.8M0.08%2025
Commercial auto in California#44 of 232$33.5M0.52%2025
Personal auto in California#51 of 118$56.0M0.12%2025
Homeowners in California#53 of 98$31.6M0.19%2025
Equipment breakdown in California#118 of 122$2010.00%2025
Inland marine in California#155 of 248$810,1990.03%2025
Commercial package (BOP, CMP) in California#180 of 207$79,1040.00%2025
Workers' compensation in California#210 of 245$631,0860.01%2025
General liability in California#227 of 353$1.7M0.02%2025
Personal auto in Illinois#45 of 194$31.9M0.29%2025
Workers' compensation in Illinois#48 of 375$16.3M0.67%2025
Homeowners in Illinois#51 of 183$17.4M0.25%2025
Commercial auto in Illinois#72 of 448$9.5M0.30%2025
Earthquake in Illinois#112 of 265$54,0640.05%2025
Equipment breakdown in Illinois#226 of 231$810.00%2025
Inland marine in Illinois#282 of 452$135,7710.01%2025
Commercial property (fire and allied lines) in Illinois#285 of 387$89,8180.01%2025
General liability in Illinois#438 of 695$523,1210.01%2025
Workers' compensation in North Carolina#41 of 347$9.3M0.62%2025
Commercial auto in North Carolina#50 of 408$8.4M0.40%2025
Personal auto in North Carolina#93 of 129$127,5800.00%2025
Inland marine in North Carolina#268 of 420$64,9830.01%2025
Homeowners in South Dakota#46 of 84$1.2M0.23%2025
Earthquake in South Dakota#49 of 78$5030.08%2025
Personal auto in South Dakota#51 of 98$1.9M0.21%2025
Commercial auto in South Dakota#92 of 237$339,6040.14%2025
Workers' compensation in South Dakota#165 of 284$116,7870.06%2025
Inland marine in South Dakota#182 of 248$6,9310.01%2025
General liability in South Dakota#290 of 356$8,1790.00%2025
Commercial auto in Texas#17 of 329$76.3M0.97%2025
Workers' compensation in Texas#43 of 327$9.8M0.39%2025
Personal auto in Texas#46 of 155$62.6M0.18%2025
Homeowners in Texas#90 of 148$16.0M0.08%2025
Equipment breakdown in Texas#167 of 173$1210.00%2025
Inland marine in Texas#215 of 356$225,7770.01%2025
Commercial package (BOP, CMP) in Texas#257 of 260$1,7220.00%2025
General liability in Texas#378 of 463$249,1470.00%2025
Homeowners in Washington#35 of 40$24.2M0.66%2025
Earthquake in Washington#40 of 40$716,0000.24%2025
Homeowners in Wisconsin#62 of 161$4.5M0.19%2024
Commercial auto in Wisconsin#114 of 312$1.1M0.11%2024
Personal auto in Wisconsin#120 of 155$588,9890.01%2024
Workers' compensation in Wisconsin#312 of 312$10.00%2024
General liability in Wisconsin#364 of 429$20,8240.00%2024
Standing

Where it's a top-10 writer

Hartford Fire & Casualty Group (NAIC group 00091), the group Trumbull Insurance Company belongs to, ranks in the top 10 for these lines and states. Top 10 insurer groups by direct premium written in 2025, from the NAIC's Market Share Reports for Property/Casualty Groups and Companies by State. A group is the parent and its insurance companies together; share is the group's part of the state total for the line; loss ratio is losses incurred over premium earned.

Line and stateRankPremium writtenShareYear
Workers' compensation in Connecticut
Workers Compensation
#1$104.9M14.35%2025
Ocean marine in Delaware
Ocean Marine
#1$2.6M13.98%2025
Workers' compensation in Delaware
Workers Compensation
#1$18.3M10.62%2025
Workers' compensation in District of Columbia
Workers Compensation
#1$25.8M17.39%2025
Credit in District of Columbia
Credit
#1$11.1M33.13%2025
Flood in Illinois
Federal Flood
#1$3.6M15.88%2025
Workers' compensation in Massachusetts
Workers Compensation
#1$144.3M11.57%2025
Flood in Montana
Federal Flood
#1$947,00034.62%2025
Flood in Nevada
Federal Flood
#1$1.4M20.61%2025
Workers' compensation in Nevada
Workers Compensation
#1$40.5M8.02%2025
Workers' compensation in North Carolina
Workers Compensation
#1$113.3M7.53%2025
Commercial package (BOP, CMP) in Texas
Total Commercial Multiple Peril
#1$509.5M9.54%2025
Workers' compensation in Virginia
Workers Compensation
#1$88.9M9.15%2025
Workers' compensation in Washington
Workers Compensation
#1$8.7M32.26%2025
Ocean marine in Colorado
Ocean Marine
#2$2.9M9.47%2025
Workers' compensation in Colorado
Workers Compensation
#2$69.4M6.34%2025
Commercial package (BOP, CMP) in Connecticut
Total Commercial Multiple Peril
#2$91.9M9.28%2025
Commercial package (BOP, CMP) in District of Columbia
Total Commercial Multiple Peril
#2$28.5M11.39%2025
Commercial package (BOP, CMP) in Georgia
Total Commercial Multiple Peril
#2$127.4M6.55%2025
Flood in Idaho
Federal Flood
#2$507,00012.98%2025
Workers' compensation in Illinois
Workers Compensation
#2$178.1M7.29%2025
Flood in Kentucky
Federal Flood
#2$2.2M15.62%2025
Workers' compensation in Maine
Workers Compensation
#2$10.6M3.99%2025
Workers' compensation in Maryland
Workers Compensation
#2$99.5M11.54%2025
Fidelity bonds in Maryland
Fidelity
#2$2.6M10.10%2025
Flood in Massachusetts
Federal Flood
#2$13.2M21.10%2025
Commercial package (BOP, CMP) in Nevada
Total Commercial Multiple Peril
#2$53.8M9.39%2025
Commercial package (BOP, CMP) in New Jersey
Total Commercial Multiple Peril
#2$217.6M9.29%2025
Workers' compensation in New Jersey
Workers Compensation
#2$303.7M11.71%2025
Flood in Oregon
Federal Flood
#2$3.1M19.35%2025
Workers' compensation in Oregon
Workers Compensation
#2$22.5M2.81%2025
Ocean marine in Pennsylvania
Ocean Marine
#2$8.8M8.45%2025
Commercial package (BOP, CMP) in Rhode Island
Total Commercial Multiple Peril
#2$26.6M9.15%2025
Workers' compensation in Rhode Island
Workers Compensation
#2$25.5M10.97%2025
Commercial package (BOP, CMP) in South Carolina
Total Commercial Multiple Peril
#2$84.7M8.32%2025
Workers' compensation in South Carolina
Workers Compensation
#2$73.8M7.50%2025
Workers' compensation in Tennessee
Workers Compensation
#2$52.6M6.61%2025
Workers' compensation in Texas
Workers Compensation
#2$143.6M5.78%2025
Workers' compensation in Alabama
Workers Compensation
#3$35.8M8.53%2025
Workers' compensation in Arizona
Workers Compensation
#3$61.2M7.27%2025
Surety bonds in Arkansas
Surety
#3$5.1M7.18%2025
Flood in California
Federal Flood
#3$20.2M14.55%2025
Commercial package (BOP, CMP) in California
Total Commercial Multiple Peril
#3$622.2M8.01%2025
General liability in California
Products Liability
#3$51.0M6.68%2025
Flood in Colorado
Federal Flood
#3$1.5M12.59%2025
Flood in Connecticut
Federal Flood
#3$5.7M13.87%2025
General liability in Connecticut
Other Liability
#3$91.3M4.77%2025
Workers' compensation in Florida
Workers Compensation
#3$159.8M5.01%2025
Workers' compensation in Georgia
Workers Compensation
#3$114.7M6.22%2025
Flood in Kansas
Federal Flood
#3$600,00011.03%2025
Workers' compensation in Kansas
Workers Compensation
#3$26.9M6.25%2025
General liability in Kansas
Products Liability
#3$3.9M4.79%2025
Ocean marine in Louisiana
Ocean Marine
#3$12.7M6.02%2025
Commercial package (BOP, CMP) in Maryland
Total Commercial Multiple Peril
#3$76.7M7.65%2025
General liability in Maryland
Products Liability
#3$5.5M9.15%2025
General liability in Massachusetts
Products Liability
#3$10.3M6.35%2025
Flood in Michigan
Federal Flood
#3$1.2M9.26%2025
Workers' compensation in Michigan
Workers Compensation
#3$55.6M5.35%2025
General liability in Mississippi
Products Liability
#3$2.3M7.62%2025
Workers' compensation in Missouri
Workers Compensation
#3$71.5M6.70%2025

Showing the best 60 of 346 top-10 placements.

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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