Company lists · Data refreshed September 2026

Top 25 Specialty insurance companies based in New York, United States

Name: Specialty insurance companies based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 67 companies tracked

RevenueBase identified 67 specialty insurance companies headquartered in New York, United States as of September 2026 and tracks 14,459 professional contacts across them, including 5,690 with verified work emails. New York is the largest hub.

This list covers specialty insurance companies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 18, 2026 86% judged on-target in blind review

67Companies

14,459Contacts tracked

5,690Verified emails

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The 25 largest specialty insurance companies based in New York, United States

Ranked by team size

Top 25 of 67 specialty insurance companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to specialty insurance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Amtrust Financial Services, INC	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	5,001-10,000	4,734 contacts →
	Partial evidence “AmTrust Financial Services, Inc, through its subsidiaries, operates as a multinational property and casualty insurance company.” Source: RevenueBase Database · checked Sep 18, 2026
2	QBE North America	Indirect evidence	New York, NY, United StatesHQ checked Sep 18, 2026	10001+	1,883 contacts →
	Indirect evidence “At QBE we’re driven by our purpose of enabling a more resilient future.” Source: RevenueBase Database · checked Sep 18, 2026
3	Argo Group	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	501-1,000	851 contacts →
	Strong evidence “Argo Group is a U.S-focused underwriter of specialty insurance products in the property and casualty market.” Source: RevenueBase Database · checked Sep 18, 2026
4	Msig USA	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	693 contacts →
	Partial evidence “MSIG USA is the partner that businesses rely on for creative, customized insurance solutions.” Source: RevenueBase Database · checked Sep 18, 2026
5	Hudson Insurance Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	675 contacts →
	Indirect evidence “Headquartered in New York City with offices throughout the U.S.” Source: RevenueBase Database · checked Sep 18, 2026
6	Jencap	Indirect evidence	New York, NY, United StatesHQ checked Sep 18, 2026	1,001-5,000	428 contacts →
	Indirect evidence “Jencap provides retail agents with carrier exclusivity, underwriting mastery, and unparalleled customer service.” Source: RevenueBase Database · checked Sep 18, 2026
7	Seneca Insurance Company	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	377 contacts →
	Strong evidence “Seneca Insurance Company is a Specialty Property and Casualty Insurance company with thirteen offices across the U.S.” Source: RevenueBase Database · checked Sep 18, 2026
8	Amynta Group	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	1,001-5,000	364 contacts →
	Partial evidence “The Amynta Group is an industry leading team of warranty and specialty risk companies as well as managing general agents.” Source: RevenueBase Database · checked Sep 18, 2026
9	Distinguished Programs	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	287 contacts →
	Strong evidence “Distinguished Programs is a leading national insurance Program Manager, specializing in areas such as Real Estate, Community Associations, Fine Art & Collectibles, Environmental &…” Source: RevenueBase Database · checked Sep 18, 2026
10	Mendes & Mount LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	206 contacts →
	Partial evidence “Founded in 1916, Mendes & Mount LLP is one of the largest firms in the country devoted exclusively to the practice of insurance law.” Source: RevenueBase Database · checked Sep 18, 2026
11	AMBAC	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	130 contacts →
	Partial evidence “Ambac has rebranded to Octave Specialty Group ("Octave").” Source: RevenueBase Database · checked Sep 18, 2026
12	Starwind Specialty Insurance	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	501-1,000	112 contacts →
	Partial evidence “Starwind Specialty is one of the largest program management operations in North America, providing distribution partners and insureds unique, specialty products across multiple…” Source: RevenueBase Database · checked Sep 18, 2026
13	Mcic Vermont, LLC	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	100 contacts →
	Strong evidence “MCIC Vermont (A Reciprocal Risk Retention Group)(MCIC) is a specialty insurance company which provides medical professional and general liability insurance coverage and risk…” Source: RevenueBase Database · checked Sep 18, 2026
14	FOA & SON Insurance	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	92 contacts →
	Partial evidence “Founded in 1861, Foa & Son are international insurance brokers based in New York City.” Source: RevenueBase Database · checked Sep 18, 2026
15	Falcon Risk Services	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	76 contacts →
	Partial evidence “Falcon Risk Services, an HDI Company, is a provider of specialty underwriting and claims solutions to US and multinational corporations.” Source: RevenueBase Database · checked Sep 18, 2026
16	Founder Shield	Indirect evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	75 contacts →
	Indirect evidence “We’re a risk management partner for rapidly evolving, high-growth companies.” Source: RevenueBase Database · checked Sep 18, 2026
17	International Marine Underwriters	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	49 contacts →
	Partial evidence “International Marine Underwriters (IMU) traces its roots to the early 1900s, and offers a full range of ocean and inland marine insurance solutions.” Source: RevenueBase Database · checked Sep 18, 2026
18	Berkley Offshore Underwriting Managers A Berkley Company	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	44 contacts →
	Strong evidence “Berkley Offshore is an insurance provider specialising in Energy Upstream, Energy Liability and Marine Insurance.” Source: RevenueBase Database · checked Sep 18, 2026
19	Ascot U.S	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	201-500	41 contacts →
	Partial evidence “At Ascot U.S, we are offering specialty solutions at scale: we understand our markets, we strive to maintain the highest level of expertise in our fields, and we are laser-focused…” Source: RevenueBase Database · checked Sep 18, 2026
20	Ryan Financial Lines	Indirect evidence	New York, NY, United StatesHQ checked Sep 18, 2026	51-200	26 contacts →
	Indirect evidence “Ryan Financial Lines is an international platform of more than 150 teammates, including a deep bench of product experts and underwriters who work collaboratively to provide a…” Source: RevenueBase Database · checked Sep 18, 2026
21	SWIS	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	24 contacts →
	Partial evidence “To simplify access to programs, markets, and expertise, SWIS has joined forces with Capitol Special Risk, Monarch E&S, Beacon Hill Associates, SWIS, and JDM & Associates under one…” Source: RevenueBase Database · checked Sep 18, 2026
22	First Fidelity Brokerage, INC	Strong evidence	New York, NY, United StatesHQ checked Sep 18, 2026	501-1,000	15 contacts →
	Strong evidence “First Fidelity Brokerage is a specialty insurance broker and a member of PCF Insurance Services, with over 40 locations, 600+ employees and 45k+ clients.” Source: RevenueBase Database · checked Sep 18, 2026
23	Alliance Risk	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	12 contacts →
	Partial evidence “Alliance Risk Insurance Services LLC is a technology-driven, full-service independent insurance brokerage that is licensed in all 50 States and the District of Columbia…” Source: RevenueBase Database · checked Sep 18, 2026
24	Prime Specialty	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	11 contacts →
	Partial evidence “Prime Specialty’s Underwriting team can provide you with competitive quotes on annual policies for Trade Contractors and General Contractors and on Designated Project policies for…” Source: RevenueBase Database · checked Sep 18, 2026
25	Benefit Quest, INC	Partial evidence	New York, NY, United StatesHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “Providers of Insurance and Employee Benefit Programs for corporations and professionals.” Source: RevenueBase Database · checked Sep 18, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: specialty insurance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names specialty insurance companies.
Partial evidence: Its own public description names part of specialty insurance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name specialty insurance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 67 specialty insurance companies based in New York, United States

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Specialty insurance companies based in New York, United States at a glance

As of Sep 18, 2026

39.4%Verified-email coverage

215.8Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · New York

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 67 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among specialty insurance companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in New York, United States whose own description of what they do matches “specialty insurance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names specialty insurance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among specialty insurance companies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 5,690 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 18, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Specialty insurance companies by metro in the United States

Specialty insurance companies in New York67
Specialty insurance companies in Chicago44
Specialty insurance companies in Houston42
Specialty insurance companies in Dallas31
Specialty insurance companies in Atlanta26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names specialty insurance companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many specialty insurance companies are there based in New York, United States?

RevenueBase identified 67 specialty insurance companies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Amtrust Financial Services, INC, headquartered in New York, tops this list with the largest team on record.

Which city has the most specialty insurance companies?

New York leads with 67 headquartered companies, followed by Chicago (44) and Houston (42).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,690 verified decision-maker contacts tracked across these 67 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.