Directory · New York · Ocean marine

Who writes ocean marine in New York

Top insurer groups from the NAIC market share report; the state's list carries no lines of authority.

American Steamship Owners Mutual Prot wrote the most ocean marine in New York in 2025, $129.4M and 24.7% of the state's premium; the top five groups hold 55%. New York's company list doesn't say which lines each company is licensed for, so the ranking below is the NAIC's top 10 groups; every licensed company is on the New York page.

By Sam Alishahi, independent insurance broker · All lines in New York

Top 10 · NAIC table: 08 - Ocean Marine

The insurer groups that write the most ocean marine in New York

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 group	Premium written	Share	Loss ratio	Member companies here
1	American Steamship Owners Mutual Protection and Indemnity Association, Inc.	$129.4M	24.74%	53%	—
2	American International Group	$66.8M	12.77%	33%	National Union Fire Insurance Company of Pittsburgh, Pennsylvania, AIG Property Casualty Company, Lexington Insurance Company, AIU Insurance Company
3	Travelers Group	$35.1M	6.71%	54%	Travelers Property Casualty Company of America, Standard Fire Insurance Company (The), Travelers Personal Insurance Company, Travelers Casualty and Surety Company of America
4	Sompo Group	$29.5M	5.63%	46%	American Agri-Business Insurance Company, Endurance Assurance Corporation, Endurance American Insurance Company, Sompo America Insurance Company
5	Starr Group	$24.6M	4.69%	42%	STARR INDEMNITY \u0026 LIABILITY COMPANY, Starr Surplus Lines Insurance Company, Starr Specialty Insurance Company
6	Chubb Ltd Group	$21.4M	4.10%	51%	Federal Insurance Company, Ace American Insurance Company, Ace Property and Casualty Insurance Company, Chubb Lloyd's Insurance Company of Texas
7	SAMSUNG FIRE \u0026 MARINE INSURANCE CO., LTD. (U.S. BRANCH)	$18.3M	3.50%	39%	—
8	Zurich Insurance Group	$16.6M	3.16%	30%	Zurich American Insurance Company, Rural Community Insurance Company, American Zurich Insurance Company, American Guarantee and Liability Insurance Company
9	Tokio Marine Holdings Inc Group	$16.0M	3.05%	56%	Philadelphia Indemnity Insurance Company, Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact, Safety National Casualty Corporation, Producers Agriculture Insurance Company
10	Cna Insurance Group	$14.6M	2.79%	64%	Continental Casualty Company, Continental Insurance Company, (The), American Casualty Company of Reading, Pennsylvania, National Fire Insurance Company of Hartford

Turned down?

Last resort for ocean marine in New York

Last resort	Lines	Where	How to get in
Surplus lines and Lloyd's open market	all	all states, under each state's diligent-search rules	Through surplus lines wholesalers; commercial property and liability have no guaranteed plan, so this is their last step	Source

Method and source

Source: the Excess Line Association of New York (DFS-licensed and eligible excess line insurers) company list, read 2026-10-17 and the surplus lines list. "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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