Company lists · Data refreshed September 2026

Top 25 Underwriting consulting firms based in the United States

Name: Underwriting consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 607 companies tracked

RevenueBase identified 607 underwriting consulting firms headquartered in the United States as of September 2026 and tracks 22,485 professional contacts across them, including 14,477 with verified work emails. New York is the largest hub.

This list covers underwriting consulting firms headquartered in the 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 29, 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 29, 2026 86% judged on-target in blind review

607Companies

22,485Contacts tracked

14,477Verified emails

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The 25 largest underwriting consulting firms based in the United States

Ranked by team size

Top 25 of 607 underwriting consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to underwriting consulting firms: 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	Alliant Insurance Services	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	10001+	6,091 contacts →
	Partial evidence “Alliant Insurance Services is among the top 5 largest and fastest-growing insurance brokerage and consulting firms in the United States.” Source: RevenueBase Database · checked Sep 29, 2026
2	Milliman	Partial evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,350 contacts →
	Partial evidence “Milliman is among the world’s largest independent actuarial and consulting firms.” Source: RevenueBase Database · checked Sep 29, 2026
3	Alera Group, INC	Indirect evidence	Deerfield, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,643 contacts →
	Indirect evidence “Alera Group is a growing leader, reimagining the complex risk management, insurance and financial services delivery experience through intentional collaboration connecting clients…” Source: RevenueBase Database · checked Sep 29, 2026
4	ISO	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 29, 2026	5,001-10,000	1,097 contacts →
	Partial evidence “Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Source: RevenueBase Database · checked Sep 29, 2026
5	Foundation Risk Partners	Partial evidence	Ormond Beach, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	531 contacts →
	Partial evidence “Foundation Risk Partners is one of the fastest growing insurance brokerage and consulting firms in the United States.” Source: RevenueBase Database · checked Sep 29, 2026
6	Strategic Risk Solutions	Indirect evidence	Concord, MA, United StatesHQ checked Sep 29, 2026	201-500	317 contacts →
	Indirect evidence “Strategic Risk Solutions is the largest independent insurance management firm worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
7	Gibson	Indirect evidence	South Bend, IN, United StatesHQ checked Sep 29, 2026	51-200	312 contacts →
	Indirect evidence “Gibson is a firm of advisors and consultants that help clients get to the proactive side of insurance.” Source: RevenueBase Database · checked Sep 29, 2026
8	Smith Brothers Insurance, LLC	Indirect evidence	Glastonbury, CT, United StatesHQ checked Sep 29, 2026	51-200	251 contacts →
	Indirect evidence “At Smith Brothers Insurance we serve as your family confidant and business’s enterprise risk manager.” Source: RevenueBase Database · checked Sep 29, 2026
9	Marshberry	Partial evidence	Woodmere, OH, United StatesHQ checked Sep 29, 2026	201-500	213 contacts →
	Partial evidence “MarshBerry – Helping Clients Learn, Improve & Realize Value MarshBerry is a global leader in investment banking and consulting dedicated to helping insurance brokerages, and firms…” Source: RevenueBase Database · checked Sep 29, 2026
10	Odell Studner	Partial evidence	Wayne, PA, United StatesHQ checked Sep 29, 2026	51-200	185 contacts →
	Partial evidence “Odell Studner provides specialized risk consulting and insurance brokerage services to middle-market companies.” Source: RevenueBase Database · checked Sep 29, 2026
11	Lewis & Ellis	Indirect evidence	Allen, TX, United StatesHQ checked Sep 29, 2026	51-200	168 contacts →
	Indirect evidence “Lewis & Ellis combines deep industry knowledge with specialized expertise in healthcare and health insurance, life insurance and financial services, employee benefits, and…” Source: RevenueBase Database · checked Sep 29, 2026
12	Trean Corporation	Strong evidence	Wayzata, MN, United StatesHQ checked Sep 29, 2026	201-500	166 contacts →
	Strong evidence “Trean Corporation (pronounced “Trē – on”) is uniquely integrated to provide insurance management services, insurance and reinsurance consulting, and underwriting and…” Source: RevenueBase Database · checked Sep 29, 2026
13	Euclid Transactional	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	165 contacts →
	Indirect evidence “Euclid Transactional is a leading global managing general agent that specializes in transactional risk insurance, including representations and warranties insurance and tax…” Source: RevenueBase Database · checked Sep 29, 2026
14	Perr&knight	Partial evidence	Santa Monica, CA, United StatesHQ checked Sep 29, 2026	51-200	163 contacts →
	Partial evidence “For over 30 years, Perr & Knight has provided insurance consulting and software solutions to the property & casualty and life, accident & health industries.” Source: RevenueBase Database · checked Sep 29, 2026
15	IMA Washington Alaska	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 29, 2026	201-500	160 contacts →
	Indirect evidence “With over four decades of experience in the industry, IMA has become a trusted leader in commercial insurance, risk management, surety, and employee benefits brokerage and…” Source: RevenueBase Database · checked Sep 29, 2026
16	IMA LOS Angeles	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 29, 2026	51-200	157 contacts →
	Indirect evidence “With over four decades of experience in the industry, IMA has become a trusted leader in commercial insurance, risk management, surety, and employee benefits brokerage and…” Source: RevenueBase Database · checked Sep 29, 2026
17	Risk & Regulatory Consulting LLC	Partial evidence	Farmington, CT, United StatesHQ checked Sep 29, 2026	51-200	122 contacts →
	Partial evidence “Risk & Regulatory Consulting, LLC is a leading, national professional services firm dedicated to providing exceptional consulting services to insurance regulators.” Source: RevenueBase Database · checked Sep 29, 2026
18	Verus Specialty Insurance A Berkley Company	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 29, 2026	51-200	110 contacts →
	Partial evidence “Verus Specialty Insurance is an underwriting management company targeting small to midsize commercial risks in the E&S and Specialty insurance markets through appointed wholesale…” Source: RevenueBase Database · checked Sep 29, 2026
19	Resilience Insurance Analytics	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	106 contacts →
	Indirect evidence “At Resilience Insurance Analytics, we're continuing a legacy: one built on the firmly held belief that every client, every deal, and every step of your review deserves the…” Source: RevenueBase Database · checked Sep 29, 2026
20	Pinnacle Actuarial Resources, INC	Partial evidence	Bloomington, IL, United StatesHQ checked Sep 29, 2026	51-200	104 contacts →
	Partial evidence “Pinnacle Actuarial Resources is an independent actuarial and management consulting firm that’s large enough to provide a wealth of expertise and world-class solutions- yet small…” Source: RevenueBase Database · checked Sep 29, 2026
21	TSIB	Indirect evidence	Saddle Brook, NJ, United StatesHQ checked Sep 29, 2026	51-200	101 contacts →
	Indirect evidence “TSIB was founded in 2005 as a subsidiary of Hochtief USA.” Source: RevenueBase Database · checked Sep 29, 2026
22	Cheiron	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 29, 2026	51-200	100 contacts →
	Indirect evidence “Cheiron (pronounced ki´• ron) is an employee-owned, full-service actuarial and financial consultancy, advising a national client base of public employers, Taft-Hartley plans…” Source: RevenueBase Database · checked Sep 29, 2026
23	The Fedeli Group	Partial evidence	Independence, OH, United StatesHQ checked Sep 29, 2026	51-200	99 contacts →
	Partial evidence “The Fedeli Group is a widely respected insurance brokerage and consulting service organization, providing quality insurance products and high-level risk management.” Source: RevenueBase Database · checked Sep 29, 2026
24	Mcube Financial LLC	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 29, 2026	51-200	99 contacts →
	Partial evidence “MCube Financial LLC is an international boutique consulting firm focused on providing advisory and consulting services to the commercial real estate industry.” Source: RevenueBase Database · checked Sep 29, 2026
25	GPW And Associates, INC	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	51-200	95 contacts →
	Indirect evidence “GPW and Associates, Inc.(GPW) has provided actuarial, reinsurance, and captive services since 1998.” Source: RevenueBase Database · checked Sep 29, 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: underwriting consulting firms. 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 underwriting consulting firms.
Partial evidence: Its own public description names part of underwriting consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwriting consulting firms. 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 607 underwriting consulting firms based in the United States

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Underwriting consulting firms based in the United States at a glance

As of Sep 29, 2026

64.4%Verified-email coverage

37.0Average contacts per company

1-10Median size (employees)

4.3%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

351

11-50

161

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 607 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 underwriting consulting firms, 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 the United States whose own description of what they do matches “underwriting consulting firms”. 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 underwriting consulting firms), 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 underwriting consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 14,477 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 29, 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.

Underwriting consulting firms by metro

Underwriting consulting firms in New York26

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 underwriting consulting firms, 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 underwriting consulting firms are there based in the United States?

RevenueBase identified 607 underwriting consulting firms headquartered in the 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?

Alliant Insurance Services, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most underwriting consulting firms?

New York leads with 26 headquartered companies, followed by Houston (14) and Chicago (10).

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 14,477 verified decision-maker contacts tracked across these 607 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 29, 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.