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Directory · Company · Updated 2026-10-18

Endurance American Specialty Insurance Company · NAIC 41718

Where Endurance American 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.

Endurance American Specialty Insurance Company (NAIC 41718) is a property and casualty insurer domiciled in Delaware, part of Sompo Group. State regulators list it as licensed (admitted) in Delaware, Illinois, Maryland, Missouri, South Carolina 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, Texas, Utah, Washington, West Virginia. It ranked #1 of 180 in North Carolina earthquake in 2025 (6.6% share). It ranked #13 of 265 in Illinois earthquake in 2025 (1.6% share). It ranked #15 of 695 in Illinois general liability in 2025 (1.0% 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)—02/23/1996California 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)Equipment breakdown, Commercial package (BOP, CMP), Earthquake, Flood, Inland marine, General liability, Medical malpractice, Professional liability (E&O), Commercial property (fire and allied lines)—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)—06/01/2006Excess Line Association of New York (DFS-licensed and eligible excess line insurers), 2026-10-17
North CarolinaSurplus lines (eligible)Equipment breakdown, Earthquake, Flood, 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
TexasSurplus lines (eligible)—2005/12/01Texas 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
Earthquake in Illinois#13 of 265$1.9M1.63%2025
General liability in Illinois#15 of 695$62.6M0.96%2025
Flood in Illinois#24 of 128$608,9701.18%2025
Inland marine in Illinois#26 of 452$9.9M0.80%2025
Commercial property (fire and allied lines) in Illinois#31 of 387$13.3M0.81%2025
Equipment breakdown in Illinois#37 of 231$501,6450.41%2025
Medical malpractice in Illinois#42 of 127$3.0M0.48%2025
Commercial package (BOP, CMP) in Illinois#295 of 400$369,1610.01%2025
Earthquake in North Carolina#1 of 180$1.4M6.58%2025
Flood in North Carolina#21 of 124$1.1M0.88%2025
Commercial property (fire and allied lines) in North Carolina#32 of 340$12.0M0.89%2025
General liability in North Carolina#33 of 621$21.9M0.74%2025
Equipment breakdown in North Carolina#36 of 219$341,5200.48%2025
Medical malpractice in North Carolina#57 of 122$428,7760.20%2025
Inland marine in North Carolina#189 of 420$349,7620.03%2025
Standing

Where it's a top-10 writer

Sompo Group (NAIC group 03219), the group Endurance American 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
Farm and crop in Alabama
Multiple Peril Crop
#1$31.3M30.14%2025
Commercial property (fire and allied lines) in Delaware
Allied Lines
#1$10.9M17.44%2025
Farm and crop in Georgia
Multiple Peril Crop
#1$88.9M30.90%2025
Farm and crop in Georgia
Private Crop
#1$1.3M29.53%2025
Farm and crop in Mississippi
Multiple Peril Crop
#1$107.5M53.73%2025
Farm and crop in Mississippi
Private Crop
#1$6.1M75.75%2025
Farm and crop in New Mexico
Multiple Peril Crop
#1$24.1M19.27%2025
Farm and crop in Oklahoma
Multiple Peril Crop
#1$93.3M26.27%2025
Farm and crop in Texas
Multiple Peril Crop
#1$564.1M28.39%2025
Farm and crop in Texas
Private Crop
#1$8.2M27.25%2025
Farm and crop in Alabama
Private Crop
#2$134,00014.97%2025
Aircraft and aviation in Alaska
Aircraft
#2$11.6M16.77%2025
Farm and crop in Arkansas
Multiple Peril Crop
#2$59.0M22.41%2025
Farm and crop in Delaware
Private Crop
#2$21,0006.12%2025
Farm and crop in Florida
Multiple Peril Crop
#2$81.7M24.68%2025
Flood in Kansas
Private Flood
#2$433,00011.10%2025
Equipment breakdown in Louisiana
Boiler and Machinery
#2$9.7M17.10%2025
Farm and crop in Maryland
Private Crop
#2$85,00039.95%2025
Aircraft and aviation in Montana
Aircraft
#2$2.9M10.97%2025
Aircraft and aviation in New Mexico
Aircraft
#2$1.3M8.61%2025
Aircraft and aviation in Oregon
Aircraft
#2$4.6M10.32%2025
Farm and crop in Pennsylvania
Private Crop
#2$104,0005.58%2025
Aircraft and aviation in Tennessee
Aircraft
#2$7.0M12.63%2025
Farm and crop in Utah
Private Crop
#2$21,00021.69%2025
Farm and crop in West Virginia
Private Crop
#2$03.34%2025
Farm and crop in Arkansas
Private Crop
#3$5.1M12.27%2025
Earthquake in District of Columbia
Earthquake
#3$498,00011.78%2025
Surety bonds in District of Columbia
Surety
#3$28.1M9.46%2025
Earthquake in Georgia
Earthquake
#3$2.0M7.71%2025
Ocean marine in Hawaii
Ocean Marine
#3$2.7M9.37%2025
Aircraft and aviation in Hawaii
Aircraft
#3$1.4M13.85%2025
Ocean marine in Kentucky
Ocean Marine
#3$3.1M8.01%2025
Aircraft and aviation in Kentucky
Aircraft
#3$1.5M9.25%2025
Farm and crop in Louisiana
Multiple Peril Crop
#3$26.4M14.31%2025
Farm and crop in Louisiana
Private Crop
#3$695,0006.83%2025
Farm and crop in Maryland
Multiple Peril Crop
#3$5.5M13.78%2025
Earthquake in Minnesota
Earthquake
#3$604,0008.36%2025
Aircraft and aviation in Mississippi
Aircraft
#3$2.7M12.82%2025
Farm and crop in Nebraska
Multiple Peril Crop
#3$149.3M14.59%2025
Farm and crop in Nebraska
Private Crop
#3$74.9M19.57%2025
Flood in Oregon
Private Flood
#3$888,0009.00%2025
Farm and crop in Pennsylvania
Multiple Peril Crop
#3$13.3M15.98%2025
Farm and crop in South Carolina
Private Crop
#3$27,0008.56%2025
Farm and crop in Tennessee
Multiple Peril Crop
#3$23.8M18.58%2025
Aircraft and aviation in Utah
Aircraft
#3$5.2M9.38%2025
Aircraft and aviation in West Virginia
Aircraft
#3$645,0009.65%2025
Earthquake in Wisconsin
Earthquake
#3$826,0008.31%2025
Farm and crop in Wyoming
Multiple Peril Crop
#3$7.1M9.90%2025
Aircraft and aviation in Wyoming
Aircraft
#3$1.0M7.37%2025
Aircraft and aviation in Alabama
Aircraft
#4$3.1M9.48%2025
Farm and crop in Colorado
Multiple Peril Crop
#4$36.1M11.34%2025
Farm and crop in Colorado
Private Crop
#4$2.4M10.17%2025
Farm and crop in Connecticut
Multiple Peril Crop
#4$3,0000.02%2025
Farm and crop in Delaware
Multiple Peril Crop
#4$1.3M10.70%2025
Aircraft and aviation in Delaware
Aircraft
#4$2.3M9.16%2025
Farm and crop in Florida
Private Crop
#4$73,00014.99%2025
Aircraft and aviation in Florida
Aircraft
#4$21.2M8.47%2025
Aircraft and aviation in Georgia
Aircraft
#4$8.6M6.21%2025
Farm and crop in Idaho
Multiple Peril Crop
#4$18.2M8.93%2025
Aircraft and aviation in Idaho
Aircraft
#4$1.8M6.82%2025

Showing the best 60 of 221 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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