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Directory · Company · Updated 2026-10-18

Crestbrook Insurance Company · NAIC 18961

Where Crestbrook 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.

Crestbrook Insurance Company (NAIC 18961) is a property and casualty insurer domiciled in Ohio, part of Nationwide Corporation 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, Washington, Wisconsin, Wyoming. It ranked #9 of 217 in South Dakota commercial package (BOP, CMP) in 2025 (2.5% share). It ranked #22 of 45 in California farm and crop in 2025 (0.2% share). It ranked #22 of 356 in South Dakota general liability in 2025 (1.2% share). The U.S. Treasury lists it as a certified surety with a $8.5M 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, Utah, West Virginia, which doesn't by itself mean it isn't licensed there.

StateStatusLines licensedSinceSource
AlaskaAdmitted (licensed)——Alaska, 2026-10-18
CaliforniaAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake, Farm and crop, Fidelity bonds, Flood, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines), Workers' compensation—California Department of Insurance, 2026-10-17
ColoradoAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake, Farm and crop, Fidelity bonds, Flood, Homeowners, Inland marine, General liability, Workers' compensation—Colorado, 2026-10-18
ConnecticutAdmitted (licensed)——Connecticut, 2026-10-18
DelawareAdmitted (licensed)——Delaware, 2026-10-18
FloridaAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Earthquake, Fidelity bonds, Homeowners, Inland marine, General liability, Commercial property (fire and allied lines), 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)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake, Fidelity bonds, Flood, Homeowners, Inland marine, General liability, 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, Credit, Farm and crop, Fidelity bonds, Glass, Homeowners, Inland marine, General liability, Ocean marine, Commercial property (fire and allied lines), Surety bonds, Workers' compensation09-05-2013Mississippi Insurance Department, 2026-10-17
MissouriAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP), Earthquake, Fidelity bonds, Homeowners, Inland marine, General liability, 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), Crime (burglary and theft), Fidelity bonds, Inland marine, General liability, 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, Crime (burglary and theft), Fidelity bonds, Inland marine, General liability, Workers' compensation—Oklahoma, 2026-10-18
OregonAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto, Commercial package (BOP, CMP), Earthquake, Farm and crop, Fidelity bonds, Flood, Homeowners, Inland marine, General liability, 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), Crime (burglary and theft), Fidelity bonds, Inland marine, General liability, 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), 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' compensation2013/06/11Texas Department of Insurance, 2026-10-17
WashingtonAdmitted (licensed)General liability—Washington Office of the Insurance Commissioner and the Surplus Line Association of Washington, 2026-10-17
WisconsinAdmitted (licensed)Personal auto, Commercial package (BOP, CMP), Homeowners, General liability—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
Farm and crop in California#22 of 45$2.3M0.20%2025
Flood in California#58 of 73$7,8800.00%2025
Earthquake in California#66 of 128$146,8670.01%2025
Fidelity bonds in California#67 of 109$51,1440.03%2025
Equipment breakdown in California#69 of 122$122,6210.06%2025
Homeowners in California#77 of 98$1.4M0.01%2025
Personal auto in California#81 of 118$8.2M0.02%2025
Crime (burglary and theft) in California#85 of 110$1,8530.00%2025
Commercial property (fire and allied lines) in California#92 of 210$2.2M0.05%2025
Commercial auto in California#92 of 232$13.0M0.20%2025
Commercial package (BOP, CMP) in California#100 of 207$6.6M0.10%2025
Inland marine in California#144 of 248$1.0M0.03%2025
General liability in California#149 of 353$7.5M0.09%2025
Workers' compensation in California#236 of 245$33,7660.00%2025
Equipment breakdown in Illinois#78 of 231$159,8240.13%2025
Fidelity bonds in Illinois#118 of 162$5,0760.01%2025
Commercial package (BOP, CMP) in Illinois#141 of 400$3.0M0.11%2025
Crime (burglary and theft) in Illinois#164 of 188$2330.00%2025
Commercial auto in Illinois#224 of 448$1.4M0.04%2025
Workers' compensation in Illinois#289 of 375$454,4660.02%2025
General liability in Illinois#369 of 695$1.1M0.02%2025
Inland marine in Illinois#434 of 452$1,8420.00%2025
Equipment breakdown in North Carolina#108 of 219$44,3360.06%2025
Commercial auto in North Carolina#205 of 408$682,4710.03%2025
Commercial package (BOP, CMP) in North Carolina#224 of 361$572,2910.03%2025
Workers' compensation in North Carolina#266 of 347$234,4440.02%2025
Inland marine in North Carolina#320 of 420$23,5980.00%2025
General liability in North Carolina#404 of 621$313,7170.01%2025
Commercial package (BOP, CMP) in South Dakota#9 of 217$6.9M2.49%2025
General liability in South Dakota#22 of 356$2.5M1.16%2025
Equipment breakdown in South Dakota#32 of 118$68,0100.49%2025
Fidelity bonds in South Dakota#34 of 79$14,0000.37%2025
Commercial auto in South Dakota#44 of 237$1.4M0.57%2025
Crime (burglary and theft) in South Dakota#45 of 70$7290.08%2025
Inland marine in South Dakota#94 of 248$94,6740.08%2025
Workers' compensation in South Dakota#96 of 284$376,3200.19%2025
Fidelity bonds in Texas#76 of 123$18,1500.02%2025
Equipment breakdown in Texas#87 of 173$117,9480.05%2025
Crime (burglary and theft) in Texas#98 of 137$1,4680.00%2025
Commercial auto in Texas#130 of 329$8.5M0.11%2025
Commercial package (BOP, CMP) in Texas#158 of 260$3.6M0.08%2025
General liability in Texas#176 of 463$4.7M0.07%2025
Inland marine in Texas#249 of 356$90,8360.00%2025
Workers' compensation in Texas#297 of 327$62,6060.00%2025
General liability in Washington#78 of 91$540,0000.05%2025
Homeowners in Wisconsin#120 of 161$388,5400.02%2024
Commercial package (BOP, CMP) in Wisconsin#124 of 276$866,3880.08%2024
Personal auto in Wisconsin#129 of 155$277,4850.01%2024
General liability in Wisconsin#306 of 429$80,6660.01%2024
Standing

Where it's a top-10 writer

Nationwide Corporation Group (NAIC group 00140), the group Crestbrook 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 California
Farmowners Multiple Peril
#1$82.7M32.30%2025
Pet in California
Pet Insurance
#1$191.1M18.01%2025
Farm and crop in Colorado
Farmowners Multiple Peril
#1$24.9M16.58%2025
Farm and crop in Delaware
Farmowners Multiple Peril
#1$3.7M33.21%2025
Pet in Delaware
Pet Insurance
#1$3.9M22.98%2025
General liability in Iowa
Products Liability
#1$3.8M7.21%2025
Pet in Maryland
Pet Insurance
#1$22.9M19.22%2025
General liability in Nebraska
Products Liability
#1$3.7M12.63%2025
Farm and crop in Ohio
Farmowners Multiple Peril
#1$53.3M20.88%2025
Credit in Oregon
Credit
#1$7.8M30.36%2025
Farm and crop in Pennsylvania
Farmowners Multiple Peril
#1$28.5M19.41%2025
Pet in Pennsylvania
Pet Insurance
#1$52.0M22.37%2025
Farm and crop in Rhode Island
Farmowners Multiple Peril
#1$477,00084.48%2025
Farm and crop in South Carolina
Farmowners Multiple Peril
#1$7.4M29.08%2025
Pet in Utah
Pet Insurance
#1$8.3M23.54%2025
Pet in Arizona
Pet Insurance
#2$18.4M18.51%2025
Farm and crop in Connecticut
Farmowners Multiple Peril
#2$3.7M36.60%2025
Pet in Connecticut
Pet Insurance
#2$22.4M19.40%2025
Pet in Georgia
Pet Insurance
#2$20.9M19.73%2025
Farm and crop in Illinois
Farmowners Multiple Peril
#2$25.1M8.04%2025
Pet in Illinois
Pet Insurance
#2$38.1M21.06%2025
Pet in Indiana
Pet Insurance
#2$10.9M22.20%2025
Farm and crop in Iowa
Farmowners Multiple Peril
#2$69.4M15.78%2025
Pet in Kentucky
Pet Insurance
#2$5.3M22.99%2025
Surety bonds in Louisiana
Surety
#2$14.5M9.02%2025
Farm and crop in Maryland
Farmowners Multiple Peril
#2$10.6M26.05%2025
Pet in Massachusetts
Pet Insurance
#2$40.4M15.64%2025
Pet in Michigan
Pet Insurance
#2$19.1M21.45%2025
Pet in Mississippi
Pet Insurance
#2$1.6M20.02%2025
Pet in Missouri
Pet Insurance
#2$7.7M18.65%2025
Equipment breakdown in Nebraska
Boiler and Machinery
#2$2.1M9.74%2025
Farm and crop in New Hampshire
Farmowners Multiple Peril
#2$585,00013.97%2025
Pet in New Jersey
Pet Insurance
#2$53.6M19.53%2025
Farm and crop in New York
Farmowners Multiple Peril
#2$16.2M24.72%2025
Pet in New York
Pet Insurance
#2$74.1M17.02%2025
Pet in Ohio
Pet Insurance
#2$20.6M18.85%2025
General liability in South Dakota
Products Liability
#2$1.5M9.39%2025
Pet in Texas
Pet Insurance
#2$54.6M19.13%2025
Farm and crop in Vermont
Farmowners Multiple Peril
#2$6.1M29.66%2025
Pet in Washington
Pet Insurance
#2$28.1M12.47%2025
Pet in Alabama
Pet Insurance
#3$3.9M17.18%2025
Farm and crop in Arizona
Farmowners Multiple Peril
#3$2.9M10.67%2025
Pet in Arkansas
Pet Insurance
#3$1.8M17.27%2025
Pet in Colorado
Pet Insurance
#3$29.5M17.14%2025
Credit in Delaware
Credit
#3$8.6M17.78%2025
Pet in Florida
Pet Insurance
#3$57.0M16.24%2025
Pet in Hawaii
Pet Insurance
#3$5.1M16.55%2025
Pet in Idaho
Pet Insurance
#3$2.8M14.55%2025
Pet in Iowa
Pet Insurance
#3$3.6M17.52%2025
Farm and crop in Kansas
Farmowners Multiple Peril
#3$29.8M7.76%2025
Pet in Kansas
Pet Insurance
#3$3.1M16.86%2025
Pet in Louisiana
Pet Insurance
#3$4.8M18.33%2025
Warranty in Louisiana
Warranty
#3$793,00011.10%2025
Pet in Maine
Pet Insurance
#3$4.3M13.27%2025
Pet in Minnesota
Pet Insurance
#3$9.8M15.61%2025
Pet in Nebraska
Pet Insurance
#3$1.9M14.54%2025
Farm and crop in Nevada
Farmowners Multiple Peril
#3$1.5M14.02%2025
Pet in Nevada
Pet Insurance
#3$12.9M18.07%2025
Pet in New Mexico
Pet Insurance
#3$2.7M15.24%2025
Commercial property (fire and allied lines) in New York
Allied Lines
#3$73.8M5.11%2025

Showing the best 60 of 274 top-10 placements.

Bonds

Treasury-certified surety

On the U.S. Treasury's Circular 570 (updated August 01, 2026) with an underwriting limit of $8.5M per bond, licensed to write surety in 46 states and territories: AK, AR, AZ, CA, DC, DE, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NV, NY, OH, OK, OR, PA, 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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