Company lists · Data refreshed September 2026

Top 25 Merger and acquisition firms based in the United States

Name: Merger and acquisition 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 20, 2026 4,335 companies tracked

RevenueBase identified 4,335 merger and acquisition firms headquartered in the United States as of September 2026 and tracks 88,884 professional contacts across them, including 45,493 with verified work emails. New York is the largest hub.

This list covers merger and acquisition 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 20, 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 20, 2026 86% judged on-target in blind review

4,335Companies

88,884Contacts tracked

45,493Verified emails

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The 25 largest merger and acquisition firms based in the United States

Ranked by team size

Top 25 of 4,335 merger and acquisition firms based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to merger and acquisition 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	Alvarez & Marsal	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	10001+	13,099 contacts →
	Indirect evidence “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Source: RevenueBase Database · checked Sep 20, 2026
2	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 20, 2026
3	Lazard	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,912 contacts →
	Indirect evidence “Founded in 1848, Lazard is the preeminent financial advisory and asset management firm, with operations in North and South America, Europe, the Middle East, Asia, and Australia.” Source: RevenueBase Database · checked Sep 20, 2026
4	Houlihan Lokey	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,576 contacts →
	Indirect evidence “Houlihan Lokey, Inc.(NYSE:HLI) is a leading global investment bank recognized for delivering independent strategic and financial advice to corporations, financial sponsors, and…” Source: RevenueBase Database · checked Sep 20, 2026
5	Evercore	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,296 contacts →
	Indirect evidence “Evercore (NYSE: EVR) is a premier global independent investment banking advisory firm.” Source: RevenueBase Database · checked Sep 20, 2026
6	TENEO	Indirect evidence	New York City, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,930 contacts →
	Indirect evidence “Teneo is the global CEO advisory firm.” Source: RevenueBase Database · checked Sep 20, 2026
7	Moelis & Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,742 contacts →
	Indirect evidence “Moelis & Company (“Moelis”) is a leading global independent investment bank that provides innovative strategic advice and solutions to a diverse client base, including…” Source: RevenueBase Database · checked Sep 20, 2026
8	Lincoln International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,489 contacts →
	Indirect evidence “Lincoln International, Inc.(NYSE: LCLN) is a trusted investment banking advisor to business owners and senior executives of leading private equity firms and their portfolio…” Source: RevenueBase Database · checked Sep 20, 2026
9	PJT Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	1,420 contacts →
	Indirect evidence “PJT Partners is a premier, global, advisory-focused investment bank that was built from the ground up to be different.” Source: RevenueBase Database · checked Sep 20, 2026
10	STOUT	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Stout is a global advisory firm specializing in corporate finance, accounting and transaction advisory, valuation, financial disputes, claims, and investigations.” Source: RevenueBase Database · checked Sep 20, 2026
11	Riveron	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,160 contacts →
	Indirect evidence “With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.” Source: RevenueBase Database · checked Sep 20, 2026
12	Nassau Street Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	n/a	904 contacts →
	Strong evidence “Nassau Street Partners is an independent capital advisory firm focused on mergers and acquisitions, capital markets advisory, and strategic financial solutions for early-stage and…” Source: RevenueBase Database · checked Sep 20, 2026
13	Perella Weinberg	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	883 contacts →
	Indirect evidence “Perella Weinberg is a leading global independent financial services firm, founded in 2006 to address the need for experienced, trusted and unconflicted advice in the financial…” Source: RevenueBase Database · checked Sep 20, 2026
14	FMI	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 20, 2026	n/a	818 contacts →
	Indirect evidence “For more than 70 years, FMI has been the leading management consulting and investment banking* firm dedicated exclusively to engineering and construction, infrastructure, and the…” Source: RevenueBase Database · checked Sep 20, 2026
15	Canaccord Genuity	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	810 contacts →
	Partial evidence “Canaccord Genuity is the global capital markets division of Canaccord Genuity Group Inc, offering institutional and corporate clients idea-driven investment banking, merger and…” Source: RevenueBase Database · checked Sep 20, 2026
16	Duff & Phelps	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	5,001-10,000	790 contacts →
	Indirect evidence “For nearly 100 years, Duff & Phelps helped clients make confident decisions in the areas of valuation, real estate, taxation and transfer pricing, disputes, M&A advisory and other…” Source: RevenueBase Database · checked Sep 20, 2026
17	FBR	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 20, 2026	n/a	789 contacts →
	Indirect evidence “In June 2017, B.” Source: RevenueBase Database · checked Sep 20, 2026
18	Transworld Business Advisors	Strong evidence	West Palm Beach, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	749 contacts →
	Strong evidence “Transworld Business Advisors is the world leader in the marketing and sales of businesses, mergers and acquisitions, and franchises.” Source: RevenueBase Database · checked Sep 20, 2026
19	Centerview Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	693 contacts →
	Indirect evidence “Centerview Partners is a premier provider of independent investment-banking advisory services.” Source: RevenueBase Database · checked Sep 20, 2026
20	Harris Williams	Indirect evidence	Richmond, VA, United StatesHQ checked Sep 20, 2026	501-1,000	662 contacts →
	Indirect evidence “Harris Williams is a global investment bank specializing in M&A, private capital solutions, and primary fund placement.” Source: RevenueBase Database · checked Sep 20, 2026
21	Greenhill & CO	Indirect evidence	New York, United StatesHQ checked Sep 20, 2026	201-500	625 contacts →
	Indirect evidence “Greenhill & Co, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
22	Hilco Global	Indirect evidence	Northbrook, IL, United StatesHQ checked Sep 20, 2026	501-1,000	528 contacts →
	Indirect evidence “Hilco Global is a privately held diversified financial services company and the world’s preeminent authority on maximizing the value of assets for both healthy and distressed…” Source: RevenueBase Database · checked Sep 20, 2026
23	Benchmark International	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 20, 2026	201-500	503 contacts →
	Indirect evidence “Benchmark International is a global M&A firm that provides business owners with creative, value-maximizing solutions for growing and exiting their businesses.” Source: RevenueBase Database · checked Sep 20, 2026
24	Sc&h	Indirect evidence	Hunt Valley, MD, United StatesHQ checked Sep 20, 2026	201-500	500 contacts →
	Indirect evidence “SC & H is an employee-owned, global consulting and financial services firm driving business, technology, and teams forward.” Source: RevenueBase Database · checked Sep 20, 2026
25	GCA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	501-1,000	454 contacts →
	Indirect evidence “GCA Advisors, LLC is the US business of GCA, a global investment bank that provides strategic M&A, capital markets and private funds advisory services to growth companies and…” Source: RevenueBase Database · checked Sep 20, 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: merger and acquisition 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 merger and acquisition firms.
Partial evidence: Its own public description names part of merger and acquisition firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name merger and acquisition 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 4,335 merger and acquisition firms based in the United States

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Merger and acquisition firms based in the United States at a glance

As of Sep 20, 2026

51.2%Verified-email coverage

20.5Average contacts per company

1-10Median size (employees)

11.3%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

3,011

11-50

1,075

51-200

174

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 4,335 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 merger and acquisition 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 “merger and acquisition 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 merger and acquisition 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 merger and acquisition 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, 45,493 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 20, 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.

Merger and acquisition firms by metro

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 merger and acquisition 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 merger and acquisition firms are there based in the United States?

RevenueBase identified 4,335 merger and acquisition 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?

Alvarez & Marsal, headquartered in New York, tops this list with the largest team on record.

Which city has the most merger and acquisition firms?

New York leads with 490 headquartered companies, followed by Chicago (161) and Los Angeles (130).

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 45,493 verified decision-maker contacts tracked across these 4,335 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 20, 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.