Company lists · Data refreshed September 2026

Top 25 Private equity consulting companies based in the United States

Name: Private equity consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,920 companies tracked

RevenueBase identified 3,920 private equity consulting companies headquartered in the United States as of September 2026 and tracks 41,371 professional contacts across them, including 18,251 with verified work emails and 14,935 with mobile numbers. New York is the largest hub.

This list covers private equity consulting companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

3,920Companies

41,371Contacts tracked

18,251Verified emails

14,935Mobile numbers

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The 25 largest private equity consulting companies based in the United States

Ranked by team size

Top 25 of 3,920 private equity consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private equity consulting companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	L.E.K. ConsultingIndirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	1,001-5,000	4,093
	“L.E.K.” Source: company website · checked Sep 5, 2026
2	LazardIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	3,912
	“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: company website · checked Sep 5, 2026
3	Lincoln InternationalStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,489
	“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: company website · checked Sep 5, 2026
4	RiveronStrong evidence	Dallas, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,160
	“With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.” Source: company website · checked Sep 5, 2026
5	Nassau Street PartnersIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	n/a	904
	“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: company website · checked Sep 5, 2026
6	TA AssociatesStrong evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	201-500	881
	“TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: company website · checked Sep 5, 2026
7	BDT & MSD PartnersIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	504
	“BDT & MSD Partners is a merchant bank serving founders, family business owners, and long-term strategic investors.” Source: company website · checked Sep 5, 2026
8	Siri Infosolutions, INCStrong evidence	Edison, NJ, United StatesHQ checked Sep 5, 2026	501-1,000	423
	“Siri InfoSolutions is a private equity consortium firm that specializes in providing IT staffing services to Fortune 500 clients throughout the United States.” Source: company website · checked Sep 5, 2026
9	W Capital PartnersStrong evidence	New York, NY, United StatesHQ checked Sep 5, 2026	n/a	337
	“W Capital Partners is a private equity firm that provides secondary liquidity to shareholders in private businesses and growth capital for those companies.” Source: company website · checked Sep 5, 2026
10	Shore Capital PartnersStrong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	327
	“Shore Capital, a Chicago-based private equity firm with an office in Nashville, is an investor in lower-middle market companies in the Healthcare, Food and Beverage, Business…” Source: company website · checked Sep 5, 2026
11	GellerPartial evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	310
	“Geller provides financial services and strategic advisory to private companies and not-for-profit organizations.” Source: company website · checked Sep 5, 2026
12	Alpha AlternativesStrong evidence	New York, United StatesHQ checked Sep 5, 2026	201-500	301
	“Alpha Alternatives is the specialist alternatives consulting division of Alpha FMC, dedicated to creating value for private markets clients-including Private Equity, Private Debt…” Source: company website · checked Sep 5, 2026
13	JM SearchStrong evidence	King Of Prussia, PA, United StatesHQ checked Sep 5, 2026	201-500	290
	“JM Search is the leading retained executive search firm for private equity, and other growth-oriented private and public organizations.” Source: company website · checked Sep 5, 2026
14	GGG Partners, LLC Previously Grisanti, Galef & GoldressIndirect evidence	Atlanta, GA, United StatesHQ checked Sep 5, 2026	n/a	283
	“Partners, LLC has transformed under-performing companies into high performance operations for more than 60 years.” Source: company website · checked Sep 5, 2026
15	Capstone PartnersIndirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	51-200	276
	“For over 20 years, Capstone Partners has been a trusted advisor to leading middle market companies, offering a fully integrated range of investment banking and financial advisory…” Source: company website · checked Sep 5, 2026
16	WilliamsmarstonIndirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	201-500	259
	“WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.” Source: company website · checked Sep 5, 2026
17	Bridgepoint ConsultingPartial evidence	Austin, TX, United StatesHQ checked Sep 5, 2026	201-500	250
	“Bridgepoint Consulting, an Addison Group company, is a leading management consulting firm that offers a full suite of services and solutions to help companies navigate the…” Source: company website · checked Sep 5, 2026
18	Ducker CarlislePartial evidence	Troy, MI, United StatesHQ checked Sep 5, 2026	51-200	238
	“Named one of America's Top Management Consulting Firms 2026 by Business Insider, Ducker Carlisle is a global market research, strategy consulting and M&A advisory firm that helps…” Source: company website · checked Sep 5, 2026
19	Generational GroupIndirect evidence	Richardson, TX, United StatesHQ checked Sep 5, 2026	201-500	228
	“Since its beginning in 2005, Generational Group has grown to be one of the leading M&A firms in North America.” Source: company website · checked Sep 5, 2026
20	MarshberryPartial evidence	Woodmere, OH, United StatesHQ checked Sep 5, 2026	201-500	213
	“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: company website · checked Sep 5, 2026
21	LivingstoneIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	207
	“Livingstone is an international mid-market M&A and debt advisory firm with offices in Amsterdam, Beijing, Chicago, Düsseldorf, Frankfurt, Hamburg, London, Los Angeles, Madrid…” Source: company website · checked Sep 5, 2026
22	Dpo&co.Strong evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	187
	“DPO & Co specializes in helping Private Equity firms and their portfolio companies gain fact-based insights during the diligence process and realize post-close synergies and value…” Source: company website · checked Sep 5, 2026
23	LCG AdvisorsIndirect evidence	Tampa, FL, United StatesHQ checked Sep 5, 2026	51-200	181
	“Maximizing Value.” Source: company website · checked Sep 5, 2026
24	Portage Point PartnersIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	201-500	173
	“Portage Point is a business advisory, interim management and investment banking firm intensely focused on the middle market.” Source: company website · checked Sep 5, 2026
25	Investor Group Services IGSIndirect evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	51-200	168
	“For over 25 years, IGS has helped investors and management teams make better, faster decisions, from commercial due diligence, to growth strategy, pricing, and go-to-market…” Source: company website · checked Sep 5, 2026

Showing 25 of 3,920 private equity consulting companies based in the United States

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Private equity consulting companies based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 494 HQs

14,935Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

2,923

11-50

812

51-200

138

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

16,997

31–60

1,161

61–90

90–180

180+

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 private equity consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “private equity consulting companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among private equity consulting companies, 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 an evidence 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, 18,251 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 5, 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.

Private equity consulting companies by metro

Frequently asked

How many private equity consulting companies are there based in the United States?

RevenueBase identified 3,920 private equity consulting companies 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?

L.E.K. Consulting, headquartered in Boston, tops this list with the largest team on record.

Which city has the most private equity consulting companies?

New York leads with 494 headquartered companies, followed by Chicago (180) and Los Angeles (114).

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 18,251 verified decision-maker contacts tracked across these 3,920 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 5, 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 SmartSearch, 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.