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Directory · Company · Updated 2026-10-18

Allegheny Casualty Company · NAIC 13285

Where Allegheny Casualty 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.

Allegheny Casualty Company (NAIC 13285) is a property and casualty insurer domiciled in New Jersey, part of Iat Reinsurance Co. 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, 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 #15 of 148 in California surety bonds in 2025 (1.9% share). It ranked #44 of 152 in North Carolina surety bonds in 2025 (0.5% share). It ranked #52 of 165 in Texas surety bonds in 2025 (0.5% share). The U.S. Treasury lists it as a certified surety with a $3.6M 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 Mississippi, Montana, West Virginia, which doesn't by itself mean it isn't licensed there.

StateStatusLines licensedSinceSource
AlaskaAdmitted (licensed)——Alaska, 2026-10-18
CaliforniaAdmitted (licensed)Surety bonds—California Department of Insurance, 2026-10-17
ColoradoAdmitted (licensed)Surety bonds—Colorado, 2026-10-18
ConnecticutAdmitted (licensed)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 2026-10-18
FloridaAdmitted (licensed)Fidelity bonds, Surety bonds—Florida Office of Insurance Regulation, 2026-10-18
GeorgiaAdmitted (licensed)Surety bonds—Georgia, 2026-10-18
HawaiiAdmitted (licensed)——Hawaii, 2026-10-18
IdahoAdmitted (licensed)Fidelity bonds, Surety bonds—Idaho, 2026-10-18
IllinoisAdmitted (licensed)Surety bonds—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)Fidelity bonds, Surety bonds—Massachusetts, 2026-10-18
MinnesotaAdmitted (licensed)——Minnesota, 2026-10-18
MissouriAdmitted (licensed)Fidelity bonds, Surety bonds—Missouri, 2026-10-18
NebraskaAdmitted (licensed)——Nebraska, 2026-10-18
NevadaAdmitted (licensed)Surety bonds—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)Surety bonds—North Carolina, 2026-10-18
North DakotaAdmitted (licensed)——North Dakota, 2026-10-18
OhioAdmitted (licensed)——Ohio Department of Insurance, 2026-10-17
OklahomaAdmitted (licensed)Surety bonds—Oklahoma, 2026-10-18
OregonAdmitted (licensed)Surety bonds—Oregon, 2026-10-18
Rhode IslandAdmitted (licensed)——Rhode Island, 2026-10-18
South CarolinaAdmitted (licensed)——South Carolina, 2026-10-18
South DakotaAdmitted (licensed)Surety bonds—South Dakota, 2026-10-18
TennesseeAdmitted (licensed)——Tennessee, 2026-10-18
TexasAdmitted (licensed)Fidelity bonds, Surety bonds1976/12/28Texas Department of Insurance, 2026-10-17
UtahAdmitted (licensed)——Utah, 2026-10-18
WashingtonAdmitted (licensed)——Washington Office of the Insurance Commissioner and the Surplus Line Association of Washington, 2026-10-17
WisconsinAdmitted (licensed)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
Surety bonds in California#15 of 148$24.0M1.89%2025
Surety bonds in Illinois#72 of 157$502,5700.14%2025
Surety bonds in North Carolina#44 of 152$1.5M0.49%2025
Surety bonds in South Dakota#66 of 106$29,9310.09%2025
Surety bonds in Texas#52 of 165$6.5M0.49%2025
Surety bonds in Wisconsin#73 of 117$80,6490.08%2024
Standing

Where it's a top-10 writer

Iat Reinsurance Co. Group (NAIC group 00225), the group Allegheny Casualty 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
Commercial property (fire and allied lines) in Louisiana
Fire
#2$59.6M8.23%2025
Homeowners in Louisiana
Homeowners Multiple Peril
#3$305.0M8.79%2025
Homeowners in Alaska
Homeowners Multiple Peril
#7$6.2M2.38%2025
Surety bonds in California
Surety
#7$44.0M3.42%2025
Surety bonds in Oklahoma
Surety
#7$4.4M3.44%2025
Homeowners in South Carolina
Homeowners Multiple Peril
#7$134.8M3.84%2025
Aircraft and aviation in Arizona
Aircraft
#8$4.2M4.54%2025
Commercial auto in Illinois
Commercial Auto Physical Damage
#8$22.4M3.03%2025
Surety bonds in Maine
Surety
#8$889,0003.31%2025
Surety bonds in New Hampshire
Surety
#8$908,0003.62%2025
Aircraft and aviation in North Dakota
Aircraft
#8$461,0003.07%2025
Homeowners in Texas
Homeowners Multiple Peril
#8$527.9M2.58%2025
Surety bonds in Delaware
Surety
#9$1.8M4.05%2025
Aircraft and aviation in Kentucky
Aircraft
#9$628,0003.76%2025
Surety bonds in Alaska
Surety
#10$1.2M2.29%2025
Surety bonds in Connecticut
Surety
#10$3.5M2.98%2025
Aircraft and aviation in Delaware
Aircraft
#10$1.1M4.41%2025
Aircraft and aviation in Montana
Aircraft
#10$1.0M3.89%2025
Commercial property (fire and allied lines) in Texas
Fire
#10$104.7M2.51%2025
Surety bonds in Vermont
Surety
#10$411,0003.17%2025
Aircraft and aviation in Wyoming
Aircraft
#10$560,0003.99%2025
Bonds

Treasury-certified surety

On the U.S. Treasury's Circular 570 (updated August 01, 2026) with an underwriting limit of $3.6M 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, PR, RI, SC, SD, TN, TX, UT, VA, 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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