Modern two-story house with a pool
Directory · Colorado · Ocean marine

Who writes ocean marine in Colorado

From the Colorado company list; alphabetical, since Colorado doesn't publish every company's premium by line.

86 insurers are licensed for ocean marine in Colorado on the regulator's list. American International Group wrote the most in 2025 (16.6% of the state's premium).

By Sam Alishahi, independent insurance broker · All lines in Colorado

Top 10 · NAIC table: 08 - Ocean Marine

The insurer groups that write the most ocean marine in Colorado

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.

#Insurer groupPremium writtenShareLoss ratioMember companies here
1American International Group$5.0M16.58%4%National Union Fire Insurance Company of Pittsburgh, Pennsylvania, AIG Property Casualty Company, Lexington Insurance Company, AIU Insurance Company
2Hartford Fire & Casualty Group$2.9M9.47%12%Hartford Fire Insurance Company, Hartford Underwriters Insurance Company, Hartford Casualty Insurance Company, Twin City Fire Insurance Company (The)
3Fm Group$2.2M7.21%83%Factory Mutual Insurance Company, Affiliated F M Insurance Company, Appalachian Insurance Company
4Tokio Marine Holdings Inc Group$2.0M6.56%24%Philadelphia Indemnity Insurance Company, Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact, Safety National Casualty Corporation, Producers Agriculture Insurance Company
5Starr Group$1.4M4.58%19%STARR INDEMNITY \u0026 LIABILITY COMPANY, Starr Surplus Lines Insurance Company, Starr Specialty Insurance Company
6American Financial Group$1.2M4.01%25%Great American Insurance Company, Great American Assurance Company, National Interstate Insurance Company, Great American Alliance Insurance Company
7Coaction Global Inc Group$1.2M3.98%736%New York Marine and General Insurance Company, Southwest Marine and General Insurance Company, Gotham Insurance Company
8Travelers Group$1.1M3.78%4%Travelers Property Casualty Company of America, Standard Fire Insurance Company (The), Travelers Personal Insurance Company, Travelers Casualty and Surety Company of America
9Cna Insurance Group$1.1M3.73%30%Continental Casualty Company, Continental Insurance Company, (The), American Casualty Company of Reading, Pennsylvania, National Fire Insurance Company of Hartford
10Hannover Group$1.1M3.70%88%HDI Global Insurance Company, HDI Specialty Insurance Company, Glencar Insurance Company, HDI Global Select Insurance Company
Ocean marine · Colorado

The companies

CompanyNAICHome stateStatus hereLines
Accelerant National Insurance Company10220ARAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +10 more
Accredited Surety and Casualty Company, Inc.26379FLAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +7 more
Ace American Insurance Company22667PAAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +15 more
Ace Fire Underwriters Insurance Company20702PAAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +7 more
Ace Property and Casualty Insurance Company20699PAAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +11 more
Affiliated F M Insurance Company10014RIAdmitted (licensed)Equipment breakdown, Earthquake, Homeowners +4 more
AGCS Marine Insurance Company22837ILAdmitted (licensed)Commercial package (BOP, CMP), Inland marine, General liability +1 more
AIG Property Casualty Company19402ILAdmitted (licensed)Personal auto, Commercial auto, Earthquake +7 more
Alaska National Insurance Company38733AKAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +7 more
American Alternative Insurance Corporation19720DEAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +12 more
American Reliable Insurance Company19615AZAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
Amica Mutual Insurance Company, The19976RIAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
Argonaut Insurance Company19801NEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Ascot Insurance Company23752COAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +6 more
Aspen American Insurance Company43460TXAdmitted (licensed)Equipment breakdown, Commercial package (BOP, CMP), Earthquake +9 more
Atain Insurance Company29033TXAdmitted (licensed)Ocean marine
Atlantic Specialty Insurance Company27154NYAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +13 more
Automobile Insurance Company of Hartford, Connecticut (The)19062CTAdmitted (licensed)Commercial package (BOP, CMP), Crime (burglary and theft), Earthquake +6 more
AXIS Insurance Company37273ILAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +9 more
Beazley Insurance Company, Inc.37540CTAdmitted (licensed)Fidelity bonds, Inland marine, General liability +3 more
Berkshire Hathaway Specialty Insurance Company22276NEAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
Chubb Indemnity Insurance Company12777NYAdmitted (licensed)Equipment breakdown, Commercial package (BOP, CMP), Crime (burglary and theft) +5 more
Chubb National Insurance Company10052INAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +10 more
Coliseum Reinsurance Company36552DEAdmitted (licensed)Aircraft and aviation, Personal auto, General liability +1 more
Continental Casualty Company20443ILAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +14 more
Continental Insurance Company, (The)35289PAAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +12 more
Endurance American Insurance Company10641DEAdmitted (licensed)Aircraft and aviation, Equipment breakdown, Commercial package (BOP, CMP) +6 more
Everest National Insurance Company10120DEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Federal Insurance Company20281INAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +14 more
Fireman's Fund Insurance Company21873ILAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +13 more
Foremost Insurance Company Grand Rapids, Michigan11185MIAdmitted (licensed)Personal auto, Commercial package (BOP, CMP), Fidelity bonds +7 more
Garrison Property and Casualty Insurance Company21253TXAdmitted (licensed)Personal auto, Commercial package (BOP, CMP), Earthquake +5 more
GEICO Marine Insurance Company37923NEAdmitted (licensed)Personal auto, Commercial auto, Inland marine +2 more
Great American Insurance Company16691OHAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +14 more
Hanover Insurance Company (The)22292NHAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
Harco National Insurance Company26433ILAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +6 more
HDI Global Insurance Company41343ILAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +6 more
Hudson Insurance Company25054DEAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +10 more
Imperium Insurance Company35408TXAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +7 more
Indemnity Insurance Company of North America43575PAAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +10 more
Insurance Company of North America22713PAAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +5 more
Liberty Mutual Fire Insurance Company23035WIAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
Liberty Mutual Insurance Company23043MAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +12 more
Markel American Insurance Company28932VAAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +8 more
Markel Insurance Company38970ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +11 more
Mitsui Sumitomo Insurance Company of America20362NYAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +8 more
Mitsui Sumitomo Insurance USA Inc.22551NYAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +6 more
National Casualty Company11991OHAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +13 more
NATIONAL LIABILITY \u0026 FIRE INSURANCE COMPANY20052CTAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +5 more
National Specialty Insurance Company22608TXAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
National Union Fire Insurance Company of Pittsburgh, Pennsylvania19445PAAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +16 more
Navigators Insurance Company42307NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
New Hampshire Insurance Company23841ILAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +10 more
New York Marine and General Insurance Company16608NYAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +10 more
Pinnacle National Insurance Company21296TXAdmitted (licensed)Commercial package (BOP, CMP), Inland marine, General liability +1 more
Point Specialty Insurance Company25747WIAdmitted (licensed)Inland marine, Ocean marine
Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact12873FLAdmitted (licensed)Personal auto, Flood, Homeowners +3 more
QBE Insurance (Europe) Limited39217PAAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +18 more
RLI Insurance Company13056ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
SAMSUNG FIRE \u0026 MARINE INSURANCE CO., LTD. (U.S. BRANCH)38300NYAdmitted (licensed)General liability, Ocean marine, Workers' compensation
St. Paul Fire and Marine Insurance Company24767CTAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +12 more
Standard Fire Insurance Company (The)19070CTAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +10 more
Star Insurance Company18023MIAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +7 more
StarNet Insurance Company40045IAAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
STARR INDEMNITY \u0026 LIABILITY COMPANY38318TXAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +9 more
StarStone National Insurance Company25496DEAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +6 more
State National Insurance Company, Inc.12831TXAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +12 more
Stratford Insurance Company40436NHAdmitted (licensed)Farm and crop, General liability, Ocean marine
Sutton National Insurance Company25798OKAdmitted (licensed)Homeowners, Ocean marine
Swiss Re Corporate Solutions America Insurance Corporation29874MOAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +9 more
Tokio Marine America Insurance Company10945NYAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +7 more
TravCo Insurance Company28188CTAdmitted (licensed)Inland marine, Ocean marine
Travelers Home and Marine Insurance Company (The)27998CTAdmitted (licensed)Personal auto, Earthquake, Homeowners +3 more
Travelers Indemnity Company of America (The)25666CTAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
Travelers Personal Insurance Company38130CTAdmitted (licensed)Earthquake, Homeowners, Inland marine +2 more
Travelers Property Casualty Company of America25674CTAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +13 more
U.S. Specialty Insurance Company29599TXAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +9 more
UNITED FIRE \u0026 CASUALTY COMPANY13021IAAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
United Services Automobile Association, USAA Reciprocal, Attorney-in-fact25941TXAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
United States Fidelity and Guaranty Company25887CTAdmitted (licensed)Aircraft and aviation, Personal auto, Commercial auto +8 more
United States Fire Insurance Company21113DEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +10 more
USAA Casualty Insurance Company25968TXAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
Vigilant Insurance Company20397NYAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +11 more
Westport Insurance Corporation39845MOAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +8 more
XL Specialty Insurance Company37885DEAdmitted (licensed)Aircraft and aviation, Personal auto, Equipment breakdown +12 more
Zurich American Insurance Company16535NYAdmitted (licensed)Personal auto, Equipment breakdown, Commercial auto +14 more
Turned down?

Last resort for ocean marine in Colorado

Last resortLinesWhereHow to get in
Surplus lines and Lloyd's open marketallall states, under each state's diligent-search rulesThrough surplus lines wholesalers; commercial property and liability have no guaranteed plan, so this is their last stepSource

Method and source

Source: the Colorado insurance regulator company list, read 2026-10-18 and the surplus lines list. ADMITTED = Colorado 2025 Insurance Industry Statistical Report (CY2024 data), sheet 'NAIC Companies' (every NAIC-coded company filing with the CO Division of Insurance, 1839 companies) joined to 'NAIC Companies Data' (type) and the 63 line-of-business sheets (lines written in CO + Lic flag). Lic flag per line sheet, consistent per company across sheets (0 conflicts): Y = licensed/admitted, S = surplus lines, N = not licensed, N/A = not applicable. Cross-check: 125/127 Lic=S companies are on the DOI eligible-nonadmitted PDF and 0 Lic=Y companies are. 'admitted' holds Lic=Y (1169) plus 281 companies that file with the CO DOI but wrote no CO premium in CY2024 (no Lic flag; lic='') and are not on the surplus PDF. 'not_admitted' (extra key, 456 rows, same row shape) holds Lic=S/N/N/A companies and no-premium companies that are on the surplus PDF. Row extras: lic (flag as given), group (NAIC group number stripped from the name). 'type' as given: Company Filing Statement Type / Business Type / Business Sub Type Statement Type: P = Property L = Life X = Health Business Type: F = Fraternal G = Other L = Life P = Property R = Risk T = Title X = Health Business Sub Type: HI = Hospital,Medical,Dental or Indemnity HM = Health Maintainance Org LH = Limited Health Service Org N = None PD = Prepaid Dental. Life/health/title companies are included (filter on type: first letter P = property/casualty statement, L = life, X = health; 'P/R/N' = risk retention group, 'T/T/N' = title). 'lines' = CO line-of-business sheets the company reported premium on in CY2024 (not lines of authority; a licensed company with no CO premium has lines=[]). 'since' is not in the source (left ''). Names are NAIC-style abbreviations. 74 companies appear in line sheets but not in the master list (mostly N/N/A). SURPLUS_LINES = DOI 'Colorado Eligible Nonadmitted Insurers Writing Surplus Lines' PDF, effective July 1, 2026, updated 9/16/26; 261 rows (227 NAIC-coded + 34 alien with AA- codes; naic='' and aa_code set for aliens). Colorado has no stamping office. PDF has no domicile column: domicile filled from the statistical report master list where the NAIC code matches (213 of 227). eligible = list effective date, not the insurer's first-eligible date. Prior-year reports: https://doi.colorado.gov/colorado-insurance-industry-statistical-report. "Premium" is direct premium written in the state for the year shown; "share" is that company's part of the state total for the line. A company can be licensed for a line and write none of it, and a surplus lines insurer can write a line without a state license for it.

Open to use. Cite "Alishahi Insurance insurance company directory" and link here. CSV · JSON.

Need ocean marine in Colorado?

Someone will insure it. I find who.

Send what you need covered and what happened before. I match it to the companies that take it, down to the last-resort plan if it comes to that. I'm licensed in 48 states and Washington, DC and your request stays with my agency, not passed to another agent. In Florida and Washington, where my licenses are still being issued, a partner agency in your state helps in the meantime.

Not shopping yet?

Get a reminder before your renewal.

Tell me when your policy renews and I’ll email you about six weeks before, when it’s worth comparing. One email, no calls.