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Directory · Company · Updated 2026-10-18

United Specialty Insurance Company · NAIC 12537

Where United Specialty 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.

United Specialty Insurance Company (NAIC 12537) is a property and casualty insurer domiciled in Texas, part of Markel Group. State regulators list it as licensed (admitted) in Delaware, Illinois, Maryland, Missouri, South Carolina, Texas and an eligible surplus lines insurer in Alaska, California, Colorado, Connecticut, Florida, Iowa, Idaho, Kentucky, Massachusetts, Minnesota, Mississippi, Montana, North Carolina, New Jersey, New York, Oklahoma, Oregon, Rhode Island, Tennessee, Utah, Washington, West Virginia. It ranked #35 of 361 in North Carolina commercial package (BOP, CMP) in 2025 (0.7% share). It ranked #86 of 400 in Illinois commercial package (BOP, CMP) in 2025 (0.3% share). It ranked #99 of 122 in North Carolina medical malpractice in 2025 (0.0% 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 Georgia, Hawaii, North Dakota, Nebraska, Nevada, Ohio, South Dakota, Wisconsin, Wyoming, which doesn't by itself mean it isn't licensed there.

StateStatusLines licensedSinceSource
AlaskaSurplus lines (eligible)——Alaska, 2026-10-18
CaliforniaSurplus lines (eligible)—05/07/2008California Department of Insurance, 2026-10-17
ColoradoSurplus lines (eligible)—2026-07-01Colorado, 2026-10-18
ConnecticutSurplus lines (eligible)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 2026-10-18
FloridaSurplus lines (eligible)——Florida Office of Insurance Regulation, 2026-10-18
IdahoSurplus lines (eligible)——Idaho, 2026-10-18
IllinoisAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Earthquake, Flood, Inland marine, General liability, Medical malpractice, Professional liability (E&O), Commercial property (fire and allied lines), Surety bonds, Umbrella and excess, Workers' compensation—Illinois, 2026-10-18
IowaSurplus lines (eligible)——Iowa, 2026-10-18
KentuckySurplus lines (eligible)——Kentucky Department of Insurance, 2026-10-17
MarylandAdmitted (licensed)——Maryland Insurance Administration, 2026-10-17
MassachusettsSurplus lines (eligible)——Massachusetts, 2026-10-18
MinnesotaSurplus lines (eligible)——Minnesota, 2026-10-18
MississippiSurplus lines (eligible)——Mississippi Insurance Department, 2026-10-17
MissouriAdmitted (licensed)——Missouri, 2026-10-18
MontanaSurplus lines (eligible)——Market share report
New JerseySurplus lines (eligible)——New Jersey, 2026-10-18
New YorkSurplus lines (eligible)—05/15/2013Excess Line Association of New York (DFS-licensed and eligible excess line insurers), 2026-10-17
North CarolinaSurplus lines (eligible)Commercial auto, Commercial package (BOP, CMP), Inland marine, General liability, Medical malpractice, Commercial property (fire and allied lines)—North Carolina, 2026-10-18
OklahomaSurplus lines (eligible)——Oklahoma, 2026-10-18
OregonSurplus lines (eligible)——Oregon, 2026-10-18
Rhode IslandSurplus lines (eligible)——Rhode Island, 2026-10-18
South CarolinaAdmitted (licensed)——South Carolina, 2026-10-18
TennesseeSurplus lines (eligible)——Tennessee, 2026-10-18
TexasAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown, Credit, Crime (burglary and theft), Farm and crop, Fidelity bonds, Glass, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation2025/01/08Texas Department of Insurance, 2026-10-17
UtahSurplus lines (eligible)——Utah, 2026-10-18
WashingtonSurplus lines (eligible)——Washington Office of the Insurance Commissioner and the Surplus Line Association of Washington, 2026-10-17
West VirginiaSurplus lines (eligible)——Market share report
What it writes

Premium and rank by line

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

Line and stateRankPremium writtenShareYear
Commercial package (BOP, CMP) in Illinois#86 of 400$8.1M0.28%2025
Medical malpractice in Illinois#112 of 127$79,5760.01%2025
General liability in Illinois#156 of 695$9.3M0.14%2025
Earthquake in Illinois#184 of 265$6,2140.01%2025
Commercial property (fire and allied lines) in Illinois#214 of 387$313,7960.02%2025
Inland marine in Illinois#331 of 452$58,3260.00%2025
Commercial auto in Illinois#428 of 448$9,5130.00%2025
Commercial package (BOP, CMP) in North Carolina#35 of 361$11.7M0.68%2025
Medical malpractice in North Carolina#99 of 122$37,7780.02%2025
General liability in North Carolina#158 of 621$5.2M0.18%2025
Commercial property (fire and allied lines) in North Carolina#201 of 340$291,0790.02%2025
Inland marine in North Carolina#259 of 420$92,6060.01%2025
Commercial auto in North Carolina#323 of 408$97,1170.00%2025
Standing

Where it's a top-10 writer

Markel Group (NAIC group 00785), the group United Specialty 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
General liability in Alaska
Other Liability
#1$28.4M10.62%2025
Ocean marine in Arizona
Ocean Marine
#1$7.4M19.95%2025
Ocean marine in Alabama
Ocean Marine
#2$4.2M6.79%2025
General liability in Arizona
Other Liability
#2$119.3M5.25%2025
General liability in Colorado
Other Liability
#2$160.3M5.49%2025
General liability in Florida
Other Liability
#2$485.9M5.09%2025
Earthquake in Louisiana
Earthquake
#2$1.0M12.12%2025
Inland marine in Montana
Inland Marine
#2$13.2M9.03%2025
General liability in Nevada
Other Liability
#2$53.8M4.58%2025
General liability in Utah
Other Liability
#2$58.9M4.94%2025
Credit in Vermont
Credit
#2$409,00013.49%2025
Inland marine in Arkansas
Inland Marine
#3$18.6M5.68%2025
Farm and crop in Florida
Farmowners Multiple Peril
#3$638,0003.11%2025
Earthquake in Florida
Earthquake
#3$6.3M7.08%2025
Ocean marine in Missouri
Ocean Marine
#3$4.3M7.46%2025
Ocean marine in Montana
Ocean Marine
#3$493,0009.65%2025
Farm and crop in Rhode Island
Farmowners Multiple Peril
#3$22,0003.93%2025
General liability in Texas
Other Liability
#3$536.5M4.42%2025
General liability in Wyoming
Products Liability
#3$652,0006.73%2025
Inland marine in Hawaii
Inland Marine
#4$9.7M6.68%2025
Workers' compensation in Hawaii
Workers Compensation
#4$27.9M7.67%2025
General liability in New Mexico
Other Liability
#4$20.0M3.91%2025
Commercial package (BOP, CMP) in Rhode Island
Total Commercial Multiple Peril
#4$17.4M5.98%2025
General liability in South Carolina
Other Liability
#4$54.3M3.93%2025
Ocean marine in Utah
Ocean Marine
#4$1.6M5.66%2025
Medical malpractice in Vermont
Medical Professional Liability
#4$1.5M6.72%2025
General liability in Alabama
Other Liability
#5$46.8M3.53%2025
Surety bonds in Georgia
Surety
#5$20.3M5.61%2025
Surety bonds in Hawaii
Surety
#5$3.2M4.57%2025
Ocean marine in Maryland
Ocean Marine
#5$4.1M5.19%2025
Workers' compensation in Nebraska
Workers Compensation
#5$20.4M5.32%2025
Ocean marine in Nevada
Ocean Marine
#5$799,0005.90%2025
Inland marine in North Carolina
Inland Marine
#5$38.0M3.54%2025
Ocean marine in Wisconsin
Ocean Marine
#5$2.7M3.82%2025
Personal auto in Alaska
Private Passenger Auto Physical Damage
#6$9.6M3.03%2025
General liability in California
Other Liability
#6$695.8M4.00%2025
Inland marine in Connecticut
Inland Marine
#6$17.0M3.72%2025
General liability in Delaware
Products Liability
#6$1.1M4.92%2025
Ocean marine in Hawaii
Ocean Marine
#6$1.6M5.60%2025
General liability in Hawaii
Other Liability
#6$22.0M3.94%2025
General liability in Idaho
Other Liability
#6$16.1M3.26%2025
General liability in Louisiana
Other Liability
#6$64.7M3.69%2025
General liability in New Hampshire
Other Liability
#6$14.9M3.67%2025
Inland marine in Pennsylvania
Inland Marine
#6$45.1M4.00%2025
Ocean marine in South Carolina
Ocean Marine
#6$3.9M5.82%2025
Ocean marine in Tennessee
Ocean Marine
#6$3.2M2.55%2025
Farm and crop in Vermont
Farmowners Multiple Peril
#6$151,0000.73%2025
Farm and crop in Connecticut
Farmowners Multiple Peril
#7$106,0001.05%2025
Ocean marine in District of Columbia
Ocean Marine
#7$203,0004.44%2025
Ocean marine in Idaho
Ocean Marine
#7$877,0005.03%2025
Inland marine in Kansas
Inland Marine
#7$12.3M4.02%2025
Farm and crop in Louisiana
Farmowners Multiple Peril
#7$90,0000.45%2025
Inland marine in Nevada
Inland Marine
#7$13.8M4.67%2025
Farm and crop in New Jersey
Farmowners Multiple Peril
#7$120,0002.72%2025
General liability in New York
Other Liability
#7$476.5M3.18%2025
General liability in North Dakota
Other Liability
#7$8.3M2.45%2025
Commercial auto in Ohio
Commercial Auto Liability
#7$44.8M2.90%2025
Ocean marine in Oklahoma
Ocean Marine
#7$1.1M5.49%2025
Ocean marine in South Dakota
Ocean Marine
#7$114,0003.51%2025
Surety bonds in Texas
Surety
#7$60.6M4.55%2025

Showing the best 60 of 142 top-10 placements.

Surplus lines

What it writes as a surplus lines insurer in Texas

Coverage lines on which United Specialty Insurance Company filed surplus lines premium with the Surplus Lines Stamping Office of Texas, January to September 2026, ranked by premium among the insurers that filed on each line. Most surplus lines insurers write nationally, so this is a good guide to what it takes on elsewhere too.

Source: SLTX Market Data Reports, "Coverage Totals by Insurer". Ranks only; see the report for premium.

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 and, except in New Jersey (which has a separate surplus lines guaranty fund), without 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.

Open to use. Cite "Alishahi Insurance insurance company directory" and link here. CSV · JSON.

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