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Directory · Company · Updated 2026-10-18

Atlantic Specialty Insurance Company · NAIC 27154

Where Atlantic 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.

Atlantic Specialty Insurance Company (NAIC 27154) is a property and casualty insurer domiciled in New York, part of Intact Financial Group. State regulators list it as licensed (admitted) in Alaska, California, Colorado, Connecticut, Delaware, 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 #3 of 152 in North Carolina surety bonds in 2025 (4.7% share). It ranked #6 of 40 in Washington surety bonds in 2025 (3.6% share). It ranked #8 of 148 in California surety bonds in 2025 (3.1% share). The U.S. Treasury lists it as a certified surety with a $126.2M 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 Florida, Montana, West Virginia, which doesn't by itself mean it isn't licensed there.

StateStatusLines licensedSinceSource
AlaskaAdmitted (licensed)——Alaska, 2026-10-18
CaliforniaAdmitted (licensed)Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—California Department of Insurance, 2026-10-17
ColoradoAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Medical malpractice, Ocean marine, Professional liability (E&O), Commercial property (fire and allied lines), Surety bonds, Workers' compensation—Colorado, 2026-10-18
ConnecticutAdmitted (licensed)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 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)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Medical malpractice, Ocean marine, Professional liability (E&O), Commercial property (fire and allied lines), 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)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' compensation09-01-2004Mississippi Insurance Department, 2026-10-17
MissouriAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Credit, Earthquake, Fidelity bonds, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, 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, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, 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, Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—Oklahoma, 2026-10-18
OregonAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, 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, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Credit, Crime (burglary and theft), Earthquake, Fidelity bonds, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—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), Earthquake, Fidelity bonds, Glass, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation2001/10/12Texas Department of Insurance, 2026-10-17
UtahAdmitted (licensed)——Utah, 2026-10-18
WashingtonAdmitted (licensed)Credit, Crime (burglary and theft), General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation—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, Fidelity bonds, General liability, Medical malpractice, Commercial property (fire and allied lines), Surety bonds, 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
Surety bonds in California#8 of 148$39.0M3.07%2025
Ocean marine in California#8 of 75$18.0M3.56%2025
Crime (burglary and theft) in California#9 of 110$1.3M2.69%2025
Credit in California#22 of 31$529,7100.28%2025
Inland marine in California#25 of 248$32.7M1.07%2025
Equipment breakdown in California#45 of 122$641,3140.31%2025
Earthquake in California#57 of 128$289,7830.01%2025
Commercial package (BOP, CMP) in California#64 of 207$18.0M0.28%2025
Fidelity bonds in California#70 of 109$43,7730.03%2025
Commercial property (fire and allied lines) in California#71 of 210$4.4M0.11%2025
General liability in California#84 of 353$25.6M0.29%2025
Commercial auto in California#118 of 232$8.2M0.13%2025
Workers' compensation in California#147 of 245$7.4M0.06%2025
Surety bonds in Illinois#9 of 157$8.4M2.28%2025
Ocean marine in Illinois#15 of 93$2.4M1.18%2025
Credit in Illinois#18 of 48$1.3M1.22%2025
Crime (burglary and theft) in Illinois#21 of 188$264,8430.72%2025
Fidelity bonds in Illinois#37 of 162$315,0520.43%2025
Inland marine in Illinois#48 of 452$5.4M0.44%2025
Equipment breakdown in Illinois#63 of 231$238,3130.19%2025
Commercial auto in Illinois#68 of 448$9.9M0.31%2025
Commercial property (fire and allied lines) in Illinois#91 of 387$3.1M0.19%2025
Earthquake in Illinois#99 of 265$76,3710.07%2025
General liability in Illinois#169 of 695$8.0M0.12%2025
Commercial package (BOP, CMP) in Illinois#229 of 400$1.2M0.04%2025
Workers' compensation in Illinois#274 of 375$589,7690.02%2025
Surety bonds in North Carolina#3 of 152$14.8M4.73%2025
Ocean marine in North Carolina#8 of 87$3.1M2.57%2025
Credit in North Carolina#9 of 45$4.6M5.35%2025
Crime (burglary and theft) in North Carolina#23 of 162$94,4420.56%2025
Equipment breakdown in North Carolina#49 of 219$211,8110.30%2025
Earthquake in North Carolina#56 of 180$57,9160.27%2025
Inland marine in North Carolina#82 of 420$2.4M0.22%2025
Commercial property (fire and allied lines) in North Carolina#94 of 340$2.4M0.18%2025
Commercial package (BOP, CMP) in North Carolina#162 of 361$1.3M0.07%2025
General liability in North Carolina#187 of 621$3.6M0.12%2025
Commercial auto in North Carolina#187 of 408$939,5270.05%2025
Workers' compensation in North Carolina#272 of 347$227,3340.02%2025
Fidelity bonds in South Dakota#16 of 79$51,2431.37%2025
Credit in South Dakota#17 of 21$40,0000.26%2025
Ocean marine in South Dakota#26 of 35$4,4450.18%2025
Surety bonds in South Dakota#26 of 106$279,0560.87%2025
Crime (burglary and theft) in South Dakota#27 of 70$5,3200.61%2025
Equipment breakdown in South Dakota#28 of 118$86,1620.62%2025
Earthquake in South Dakota#32 of 78$1,4770.23%2025
Inland marine in South Dakota#55 of 248$308,5100.27%2025
Commercial package (BOP, CMP) in South Dakota#65 of 217$667,9390.24%2025
Commercial property (fire and allied lines) in South Dakota#94 of 157$43,4350.03%2025
Commercial auto in South Dakota#120 of 237$240,9470.10%2025
General liability in South Dakota#122 of 356$255,4060.12%2025
Workers' compensation in South Dakota#170 of 284$107,1960.05%2025
Credit in Texas#11 of 43$9.1M2.05%2025
Crime (burglary and theft) in Texas#15 of 137$740,4941.08%2025
Earthquake in Texas#16 of 130$297,6241.10%2025
Ocean marine in Texas#25 of 81$6.1M1.49%2025
Surety bonds in Texas#30 of 165$14.8M1.11%2025
Fidelity bonds in Texas#36 of 123$339,9880.35%2025
Equipment breakdown in Texas#44 of 173$387,8470.17%2025
Inland marine in Texas#79 of 356$6.6M0.20%2025
Commercial package (BOP, CMP) in Texas#91 of 260$10.0M0.23%2025
Commercial auto in Texas#92 of 329$16.4M0.21%2025
Commercial property (fire and allied lines) in Texas#97 of 260$5.2M0.10%2025
General liability in Texas#114 of 463$11.8M0.18%2025
Workers' compensation in Texas#171 of 327$1.3M0.05%2025
Surety bonds in Washington#6 of 40$8.4M3.64%2025
Ocean marine in Washington#8 of 40$8.4M3.53%2025
Credit in Washington#10 of 29$1.2M2.49%2025
Crime (burglary and theft) in Washington#16 of 39$89,0001.02%2025
Workers' compensation in Washington#28 of 39$166,0000.66%2025
Commercial property (fire and allied lines) in Washington#49 of 49$627,0000.12%2025
General liability in Washington#67 of 91$2.5M0.22%2025
Surety bonds in Wisconsin#17 of 117$1.8M1.77%2024
Credit in Wisconsin#24 of 30$94,6770.31%2024
Fidelity bonds in Wisconsin#31 of 118$126,8530.53%2024
Commercial property (fire and allied lines) in Wisconsin#71 of 210$469,5390.14%2024
Commercial auto in Wisconsin#94 of 312$1.6M0.16%2024
General liability in Wisconsin#120 of 429$1.8M0.14%2024
Commercial package (BOP, CMP) in Wisconsin#132 of 276$701,6600.06%2024
Workers' compensation in Wisconsin#184 of 312$494,2570.03%2024
Standing

Where it's a top-10 writer

Intact Financial Group (NAIC group 04904), the group Atlantic 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
Credit in Hawaii
Credit
#1$3.4M26.33%2025
Surety bonds in Indiana
Surety
#1$30.3M15.56%2025
Ocean marine in Maine
Ocean Marine
#1$9.5M19.61%2025
Commercial auto in Tennessee
Commercial Auto Physical Damage
#1$49.0M11.86%2025
Ocean marine in Vermont
Ocean Marine
#1$763,00019.51%2025
Ocean marine in Arkansas
Ocean Marine
#2$3.6M9.76%2025
Ocean marine in Hawaii
Ocean Marine
#2$3.7M12.84%2025
Credit in Maryland
Credit
#2$5.8M18.96%2025
Credit in Massachusetts
Credit
#2$10.8M13.81%2025
Ocean marine in New Hampshire
Ocean Marine
#2$2.7M11.57%2025
Credit in Rhode Island
Credit
#2$1.1M14.79%2025
Credit in Connecticut
Credit
#3$6.0M13.41%2025
Ocean marine in Kansas
Ocean Marine
#3$791,0006.27%2025
Ocean marine in Massachusetts
Ocean Marine
#3$15.8M9.93%2025
Surety bonds in North Carolina
Surety
#3$14.8M4.73%2025
Ocean marine in Oklahoma
Ocean Marine
#3$2.2M10.55%2025
Credit in Vermont
Credit
#3$393,00012.97%2025
Surety bonds in Delaware
Surety
#4$2.3M5.08%2025
Ocean marine in Iowa
Ocean Marine
#4$813,0006.35%2025
Fidelity bonds in Kansas
Fidelity
#4$761,0006.49%2025
Surety bonds in Maryland
Surety
#4$15.8M6.62%2025
Surety bonds in Nevada
Surety
#4$12.0M6.71%2025
Credit in New Hampshire
Credit
#4$1.3M10.88%2025
Ocean marine in West Virginia
Ocean Marine
#4$382,0007.49%2025
Ocean marine in Alaska
Ocean Marine
#5$3.1M7.19%2025
Credit in District of Columbia
Credit
#5$2.8M8.25%2025
Surety bonds in Florida
Surety
#5$37.9M4.50%2025
Commercial auto in Tennessee
Total Commercial Auto
#5$62.5M4.38%2025
Crime (burglary and theft) in Wyoming
Burglary and Theft
#5$31,0004.63%2025
Crime (burglary and theft) in Alaska
Burglary and Theft
#6$43,0003.42%2025
Surety bonds in Missouri
Surety
#6$6.1M3.68%2025
Surety bonds in North Dakota
Surety
#6$1.4M3.77%2025
Ocean marine in Oregon
Ocean Marine
#6$2.3M4.31%2025
Ocean marine in Rhode Island
Ocean Marine
#6$3.6M5.98%2025
Surety bonds in South Carolina
Surety
#6$5.2M3.19%2025
Surety bonds in Virginia
Surety
#6$14.3M4.21%2025
Credit in Virginia
Credit
#6$3.9M6.11%2025
Surety bonds in Alabama
Surety
#7$5.7M4.03%2025
Surety bonds in District of Columbia
Surety
#7$12.4M4.18%2025
Surety bonds in Illinois
Surety
#7$8.4M2.28%2025
Ocean marine in Maryland
Ocean Marine
#7$3.4M4.36%2025
Surety bonds in Montana
Surety
#7$1.8M3.56%2025
Surety bonds in Ohio
Surety
#7$9.7M3.89%2025
Credit in South Carolina
Credit
#7$1.7M5.33%2025
Inland marine in Colorado
Inland Marine
#8$19.1M2.91%2025
Credit in Florida
Credit
#8$5.8M2.38%2025
Credit in Georgia
Credit
#8$3.4M3.37%2025
Surety bonds in Kentucky
Surety
#8$2.8M2.39%2025
Surety bonds in Michigan
Surety
#8$6.3M3.50%2025
Surety bonds in Minnesota
Surety
#8$4.2M3.67%2025
Ocean marine in Mississippi
Ocean Marine
#8$883,0004.69%2025
Credit in New Jersey
Credit
#8$4.2M3.34%2025
Credit in New York
Credit
#8$20.9M5.96%2025
Ocean marine in North Carolina
Ocean Marine
#8$3.1M2.57%2025
Credit in North Carolina
Credit
#8$4.6M5.35%2025
Credit in Oregon
Credit
#8$970,0003.76%2025
Credit in Tennessee
Credit
#8$3.8M5.21%2025
Ocean marine in Washington
Ocean Marine
#8$8.4M3.41%2025
Surety bonds in Washington
Surety
#8$8.4M3.30%2025
Ocean marine in Connecticut
Ocean Marine
#9$3.0M2.96%2025

Showing the best 60 of 75 top-10 placements.

Bonds

Treasury-certified surety

On the U.S. Treasury's Circular 570 (updated August 01, 2026) with an underwriting limit of $126.2M per bond, licensed to write surety in 54 states and territories: AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, GU, 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, 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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