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Directory · Missouri · Ocean marine

Who writes ocean marine in Missouri

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

72 insurers are licensed for ocean marine in Missouri on the regulator's list. American International Group wrote the most in 2025 (14.4% of the state's premium).

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

Top 10 · NAIC table: 08 - Ocean Marine

The insurer groups that write the most ocean marine in Missouri

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$8.2M14.38%33%National Union Fire Insurance Company of Pittsburgh, Pennsylvania, AIG Property Casualty Company, Lexington Insurance Company, AIU Insurance Company
2Starr Group$7.6M13.35%7%STARR INDEMNITY \u0026 LIABILITY COMPANY, Starr Surplus Lines Insurance Company, Starr Specialty Insurance Company
3Markel Group$4.3M7.46%129%State National Insurance Company, Inc., Markel Insurance Company, Markel American Insurance Company, Essentia Insurance Company
4Travelers Group$3.4M5.91%8%Travelers Property Casualty Company of America, Standard Fire Insurance Company (The), Travelers Personal Insurance Company, Travelers Casualty and Surety Company of America
5Cna Insurance Group$2.9M5.02%—Continental Casualty Company, Continental Insurance Company, (The), American Casualty Company of Reading, Pennsylvania, National Fire Insurance Company of Hartford
6Chubb Ltd Group$2.8M4.96%19%Federal Insurance Company, Ace American Insurance Company, Ace Property and Casualty Insurance Company, Chubb Lloyd's Insurance Company of Texas
7Hartford Fire & Casualty Group$2.5M4.30%10%Hartford Fire Insurance Company, Hartford Underwriters Insurance Company, Hartford Casualty Insurance Company, Twin City Fire Insurance Company (The)
8Tokio Marine Holdings Inc Group$2.1M3.60%—Philadelphia Indemnity Insurance Company, Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact, Safety National Casualty Corporation, Producers Agriculture Insurance Company
9Intact Financial Group$1.9M3.28%9%Atlantic Specialty Insurance Company, Homeland Insurance Company of New York, OBI National Insurance Company, Homeland Insurance Company of Delaware
10Hannover Group$1.8M3.16%45%HDI Global Insurance Company, HDI Specialty Insurance Company, Glencar Insurance Company, HDI Global Select Insurance Company
Ocean marine · Missouri

The companies

CompanyNAICHome stateStatus hereLines
Accelerant National Insurance Company10220ARAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Accredited Surety and Casualty Company, Inc.26379FLAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
Ace American Insurance Company22667PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +11 more
Ace Fire Underwriters Insurance Company20702PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Affiliated F M Insurance Company10014RIAdmitted (licensed)Commercial package (BOP, CMP), Earthquake, Homeowners +3 more
AGCS Marine Insurance Company22837ILAdmitted (licensed)Commercial package (BOP, CMP), Inland marine, Ocean marine
AIG Property Casualty Company19402ILAdmitted (licensed)Personal auto, Earthquake, Homeowners +5 more
Amica Mutual Insurance Company, The19976RIAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
Arch Insurance (UK) Limited11150MOAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +10 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) +5 more
Aspen American Insurance Company43460TXAdmitted (licensed)Commercial package (BOP, CMP), Earthquake, Inland marine +3 more
Atain Insurance Company29033TXAdmitted (licensed)Ocean marine
Atlantic Specialty Insurance Company27154NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Automobile Insurance Company of Hartford, Connecticut (The)19062CTAdmitted (licensed)Earthquake, Homeowners, Inland marine +3 more
AXIS Insurance Company37273ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Beazley Insurance Company, Inc.37540CTAdmitted (licensed)Fidelity bonds, Inland marine, General liability +3 more
Berkshire Hathaway Specialty Insurance Company22276NEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Chubb Indemnity Insurance Company12777NYAdmitted (licensed)Personal auto, Commercial package (BOP, CMP), Earthquake +6 more
Continental Insurance Company, (The)35289PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Endurance American Insurance Company10641DEAdmitted (licensed)Commercial package (BOP, CMP), Fidelity bonds, Inland marine +3 more
Federal Insurance Company20281INAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Foremost Insurance Company Grand Rapids, Michigan11185MIAdmitted (licensed)Personal auto, Homeowners, Inland marine +3 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)Personal auto, Commercial auto, Commercial package (BOP, CMP) +12 more
Hanover Insurance Company (The)22292NHAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
HDI Global Insurance Company41343ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
Imperium Insurance Company35408TXAdmitted (licensed)Personal auto, Commercial auto, Inland marine +4 more
Indemnity Insurance Company of North America43575PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Insurance Company of North America22713PAAdmitted (licensed)Ocean marine
Liberty Mutual Fire Insurance Company23035WIAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Liberty Mutual Insurance Company23043MAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +10 more
Markel American Insurance Company28932VAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Markel Insurance Company38970ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Mitsui Sumitomo Insurance USA Inc.22551NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +4 more
National Casualty Company11991OHAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +6 more
National Specialty Insurance Company22608TXAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +4 more
National Union Fire Insurance Company of Pittsburgh, Pennsylvania19445PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +11 more
Navigators Insurance Company42307NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +3 more
New Hampshire Insurance Company23841ILAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +6 more
New York Marine and General Insurance Company16608NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Penn Millers Insurance Company14982PAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 more
Pinnacle National Insurance Company21296TXAdmitted (licensed)Ocean marine
Point Specialty Insurance Company25747WIAdmitted (licensed)Inland marine, Ocean marine
Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact12873FLAdmitted (licensed)Personal auto, Homeowners, Inland marine +3 more
QBE Insurance (Europe) Limited39217PAAdmitted (licensed)Personal auto, Commercial auto, Earthquake +7 more
Riverport Insurance Company36684IAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 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
Standard Fire Insurance Company (The)19070CTAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Star Insurance Company18023MIAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
StarNet Insurance Company40045IAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
STARR INDEMNITY \u0026 LIABILITY COMPANY38318TXAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
StarStone National Insurance Company25496DEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +6 more
State National Insurance Company, Inc.12831TXAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Stratford Insurance Company40436NHAdmitted (licensed)General liability, Ocean marine, Commercial property (fire and allied lines)
Sutton National Insurance Company25798OKAdmitted (licensed)Homeowners, Ocean marine, Workers' compensation
Swiss Re Corporate Solutions America Insurance Corporation29874MOAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
Tokio Marine America Insurance Company10945NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +5 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, Commercial auto, Commercial package (BOP, CMP) +10 more
Travelers Personal Insurance Company38130CTAdmitted (licensed)Earthquake, Homeowners, Inland marine +2 more
Travelers Property Casualty Company of America25674CTAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +11 more
U.S. Specialty Insurance Company29599TXAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +7 more
UNITED FIRE \u0026 CASUALTY COMPANY13021IAAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
United Services Automobile Association, USAA Reciprocal, Attorney-in-fact25941TXAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
USAA Casualty Insurance Company25968TXAdmitted (licensed)Personal auto, Earthquake, Homeowners +4 more
Westchester Fire Insurance Company10030PAAdmitted (licensed)Commercial package (BOP, CMP), Earthquake, Fidelity bonds +6 more
XL Specialty Insurance Company37885DEAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +8 more
Zurich American Insurance Company16535NYAdmitted (licensed)Personal auto, Commercial auto, Commercial package (BOP, CMP) +9 more
Turned down?

Last resort for ocean marine in Missouri

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 Missouri insurance regulator company list, read 2026-10-18 and the surplus lines list. Admitted = every ACTIVE Missouri licensee (P&C, life, health, HMO, TPA, warranty, prepaid dental, etc.); filter on type. 'type' is the license Description from each company's detail page (e.g. 'Property and Casualty (Ch 379, RSMo)'); where a detail page was not read, type comes from Missouri market-share membership and is suffixed '(market share)'. 'lines' = lines of business with non-zero direct written premium in the 2025 Missouri market share report (licensed companies only). 'domicile' is only known for companies in the market share report. 'since' = Date Admitted from the detail page. Surplus lines list carries no NAIC code; naic filled by exact normalized-name match (naic_source says where), alien = domicile not a US state code. Detail-page crawl in progress; this file will be rewritten when it finishes. "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.

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