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Directory · Company · Updated 2026-10-18

Allied World Assurance Company (U.S.) Inc. · NAIC 22730

Where Allied World Assurance Company (U.S.) Inc. 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.

Allied World Assurance Company (U.S.) Inc. (NAIC 22730) is a property and casualty insurer domiciled in New Hampshire, part of Fairfax Financial 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 #13 of 31 in California credit in 2025 (1.5% share). It ranked #18 of 35 in California medical malpractice in 2025 (0.2% share). It ranked #18 of 44 in Texas medical malpractice in 2025 (0.7% share). The U.S. Treasury lists it as a certified surety with a $221.4M underwriting limit.

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

StateStatusLines licensedSinceSource
AlaskaAdmitted (licensed)——Alaska, 2026-10-18
CaliforniaAdmitted (licensed)Commercial auto, Credit, General liability, Medical malpractice, Surety bonds—California Department of Insurance, 2026-10-17
ColoradoAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), General liability, Medical malpractice, Professional liability (E&O), Surety bonds—Colorado, 2026-10-18
ConnecticutAdmitted (licensed)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 2026-10-18
FloridaAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto, Commercial package (BOP, CMP), Earthquake, Farm and crop, Fidelity bonds, Homeowners, Inland marine, General liability, Medical malpractice, Mobile home, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—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
HawaiiAdmitted (licensed)——Hawaii, 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)Aircraft and aviation, Personal auto, Commercial auto, Commercial package (BOP, CMP), Credit, General liability, Medical malpractice, Professional liability (E&O), Surety bonds, 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)Personal auto, Equipment breakdown, Fidelity bonds, Glass, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation12-01-1997Mississippi Insurance Department, 2026-10-17
MissouriAdmitted (licensed)Personal auto, Commercial auto, Credit, General liability, Medical malpractice—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, Credit, General liability, Medical malpractice, Professional liability (E&O)—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, General liability—Oklahoma, 2026-10-18
OregonAdmitted (licensed)General liability, Medical malpractice, Professional liability (E&O)—Oregon, 2026-10-18
Rhode IslandAdmitted (licensed)——Rhode Island, 2026-10-18
South CarolinaAdmitted (licensed)——South Carolina, 2026-10-18
South DakotaAdmitted (licensed)General liability, Medical malpractice, Professional liability (E&O)—South Dakota, 2026-10-18
TennesseeAdmitted (licensed)——Tennessee, 2026-10-18
TexasAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Farm and crop, Fidelity bonds, Glass, Inland marine, General liability, Medical malpractice, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation1992/09/02Texas Department of Insurance, 2026-10-17
UtahAdmitted (licensed)——Utah, 2026-10-18
WashingtonAdmitted (licensed)Medical malpractice—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), Credit, General liability, Medical malpractice, Surety bonds—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
Credit in California#13 of 31$2.8M1.50%2025
Medical malpractice in California#18 of 35$1.0M0.23%2025
General liability in California#71 of 353$31.3M0.36%2025
Surety bonds in California#108 of 148$58,9980.00%2025
Commercial auto in California#181 of 232$572,8320.01%2025
Credit in Illinois#35 of 48$300,0000.28%2025
Medical malpractice in Illinois#47 of 127$2.4M0.39%2025
General liability in Illinois#174 of 695$7.4M0.11%2025
Commercial package (BOP, CMP) in Illinois#329 of 400$162,8640.01%2025
Commercial auto in Illinois#387 of 448$75,4170.00%2025
Credit in North Carolina#38 of 45$63,5000.07%2025
Medical malpractice in North Carolina#42 of 122$888,8110.41%2025
General liability in North Carolina#203 of 621$2.9M0.10%2025
Commercial auto in North Carolina#371 of 408$16,6460.00%2025
Medical malpractice in South Dakota#19 of 31$15,9390.10%2025
General liability in South Dakota#175 of 356$99,2610.05%2025
Medical malpractice in Texas#18 of 44$1.6M0.71%2025
Credit in Texas#37 of 43$191,4500.04%2025
General liability in Texas#85 of 463$18.6M0.28%2025
Commercial auto in Texas#109 of 329$13.6M0.17%2025
Commercial package (BOP, CMP) in Texas#138 of 260$5.1M0.12%2025
Medical malpractice in Washington#32 of 51$419,0000.26%2025
Medical malpractice in Wisconsin#22 of 34$73,4460.10%2024
General liability in Wisconsin#102 of 429$2.4M0.19%2024
Commercial package (BOP, CMP) in Wisconsin#274 of 276$740.00%2024
Standing

Where it's a top-10 writer

Fairfax Financial Group (NAIC group 00158), the group Allied World Assurance Company (U.S.) Inc. 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 Louisiana
Products Liability
#1$6.5M10.58%2025
Farm and crop in New Jersey
Private Crop
#1$145,000100.00%2025
Farm and crop in New York
Private Crop
#1$154,00070.13%2025
Farm and crop in Pennsylvania
Private Crop
#1$1.5M83.16%2025
General liability in Texas
Products Liability
#1$52.6M9.58%2025
Commercial auto in California
Commercial Auto Liability
#2$465.3M6.32%2025
Credit in Delaware
Credit
#2$9.0M18.43%2025
General liability in Hawaii
Products Liability
#2$2.2M14.44%2025
General liability in Alabama
Other Liability
#3$51.9M3.91%2025
General liability in Arizona
Products Liability
#3$5.5M5.54%2025
General liability in California
Other Liability
#3$755.9M4.34%2025
General liability in Colorado
Products Liability
#3$8.8M7.36%2025
General liability in Hawaii
Other Liability
#3$31.2M5.58%2025
General liability in Louisiana
Other Liability
#3$83.7M4.77%2025
Surety bonds in Louisiana
Surety
#3$11.4M7.10%2025
Pet in Washington
Pet Insurance
#3$24.5M10.87%2025
General liability in Alabama
Products Liability
#4$4.5M7.25%2025
Commercial auto in California
Total Commercial Auto
#4$513.1M5.77%2025
Surety bonds in Florida
Surety
#4$38.1M4.53%2025
Commercial auto in Illinois
Commercial Auto Physical Damage
#4$38.6M5.21%2025
Inland marine in Massachusetts
Inland Marine
#4$40.0M5.41%2025
General liability in Oklahoma
Products Liability
#4$3.2M6.00%2025
General liability in Washington
Other Liability
#4$102.1M3.99%2025
Pet in California
Pet Insurance
#5$113.1M10.66%2025
General liability in Florida
Other Liability
#5$337.6M3.54%2025
General liability in Georgia
Other Liability
#5$141.4M3.69%2025
Commercial auto in Hawaii
Commercial Auto Physical Damage
#5$2.8M7.06%2025
Commercial property (fire and allied lines) in Iowa
Allied Lines
#5$12.8M4.34%2025
General liability in Mississippi
Other Liability
#5$23.8M3.81%2025
General liability in Mississippi
Products Liability
#5$2.2M7.26%2025
Credit in Missouri
Credit
#5$4.2M6.88%2025
Pet in New York
Pet Insurance
#5$48.8M11.23%2025
Commercial auto in Pennsylvania
Commercial Auto Liability
#5$90.3M4.70%2025
General liability in Texas
Other Liability
#5$483.6M3.98%2025
Surety bonds in Utah
Surety
#5$9.5M8.20%2025
Credit in Virginia
Credit
#5$4.0M6.23%2025
Surety bonds in Wyoming
Surety
#5$4.4M6.32%2025
General liability in Arizona
Other Liability
#6$70.5M3.10%2025
Credit in Connecticut
Credit
#6$3.2M7.08%2025
Earthquake in District of Columbia
Earthquake
#6$299,0007.09%2025
Commercial auto in Hawaii
Commercial Auto Liability
#6$8.0M6.28%2025
Commercial auto in Hawaii
Total Commercial Auto
#6$10.8M6.46%2025
Farm and crop in Kentucky
Private Crop
#6$301,0003.45%2025
Commercial auto in Mississippi
Commercial Auto Physical Damage
#6$9.4M5.51%2025
Medical malpractice in Montana
Medical Professional Liability
#6$2.7M5.81%2025
Surety bonds in New Jersey
Surety
#6$10.8M3.75%2025
Commercial property (fire and allied lines) in New York
Allied Lines
#6$52.0M3.60%2025
Surety bonds in New York
Surety
#6$36.4M4.55%2025
General liability in North Carolina
Other Liability
#6$91.9M3.30%2025
Farm and crop in South Carolina
Private Crop
#6$5,0001.71%2025
General liability in Tennessee
Other Liability
#6$64.3M3.04%2025
Farm and crop in Alabama
Private Crop
#7$1,0000.10%2025
General liability in Arkansas
Other Liability
#7$21.1M2.47%2025
Commercial auto in California
Commercial Auto Physical Damage
#7$47.8M3.13%2025
General liability in Connecticut
Other Liability
#7$63.1M3.30%2025
Surety bonds in Connecticut
Surety
#7$3.9M3.31%2025
General liability in District of Columbia
Products Liability
#7$336,0002.78%2025
Credit in Florida
Credit
#7$8.2M3.36%2025
General liability in Georgia
Products Liability
#7$6.8M3.94%2025
Commercial package (BOP, CMP) in Hawaii
Total Commercial Multiple Peril
#7$10.3M2.86%2025

Showing the best 60 of 186 top-10 placements.

Bonds

Treasury-certified surety

On the U.S. Treasury's Circular 570 (updated August 01, 2026) with an underwriting limit of $221.4M per bond, licensed to write surety in 52 states and territories: AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VI, VT, WA, WI, WV, WY.

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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