Company lists · Data refreshed September 2026

Top 25 Consultancy firms based in the United States

Name: Consultancy 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 24, 2026 32,029 companies tracked

RevenueBase identified 32,029 company matches for consultancy firms associated with the United States as of September 2026 and tracks 402,003 professional contacts across them, including 151,794 with verified work emails and 125,429 with mobile numbers. New York is the largest hub.

This list covers company matches for consultancy firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 24, 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 RevenueBase SmartSearch · Exact Recorded Sep 24, 2026 How this list was built

32,029Companies

402,003Contacts tracked

151,794Verified emails

125,429Mobile numbers

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The 25 largest consultancy firms based in the United States

Ranked by team size

Top 25 of 32,029 company matches for consultancy firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Sep 24, 2026	10001+	38,730 contacts →
	Exact match “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Bain & Company	Exact match	Boston, MA, United StatesHQ recorded Sep 24, 2026	10001+	21,689 contacts →
	Exact match “Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	Korn Ferry	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 24, 2026	10001+	13,486 contacts →
	Exact match “Korn Ferry is a global consulting firm that powers performance.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	Alvarez & Marsal	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	10001+	13,099 contacts →
	Exact match “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 24, 2026	5,001-10,000	8,779 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Oliver Wyman	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	5,001-10,000	8,230 contacts →
	Exact match “At Oliver Wyman, a Marsh business, we bring deep industry insight, bold innovation, and a collaborative approach that cuts through complexity to help organizations navigate their…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Kearney	Exact match	Chicago, IL, United StatesHQ recorded Sep 24, 2026	5,001-10,000	6,978 contacts →
	Exact match “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	CBIZ	Exact match	Independence, OH, United StatesHQ recorded Sep 24, 2026	10001+	6,369 contacts →
	Exact match “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	Eisneramper	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	4,199 contacts →
	Exact match “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	L.E.K. Consulting	Exact match	Boston, MA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	4,093 contacts →
	Exact match “L.E.K.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	DAI	Exact match	Bethesda, MD, United StatesHQ recorded Sep 24, 2026	5,001-10,000	3,741 contacts →
	Exact match “DAI is an integrated professional services and advisory firm that provides project design and delivery, management consulting, and financial services to companies, investors, and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Alixpartners	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,583 contacts →
	Exact match “For more than forty years, AlixPartners has helped businesses around the world respond quickly and decisively to their most critical challenges – circumstances as diverse as…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Withum	Exact match	Princeton, NJ, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,326 contacts →
	Exact match “Withum is a forward-thinking, technology-driven advisory and accounting firm, helping clients to Be in a Position of Strength in today’s modern business landscape.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	Genpact Headstrong Capital Markets	Exact match	Reston, VA, United StatesHQ recorded Sep 24, 2026	10001+	3,109 contacts →
	Exact match “Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Wipfli	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 24, 2026	1,001-5,000	3,047 contacts →
	Exact match “Always advancing.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Frost & Sullivan	Exact match	San Antonio, TX, United StatesHQ recorded Sep 24, 2026	1,001-5,000	2,330 contacts →
	Exact match “For over six decades, Frost & Sullivan has helped the world’s top companies toward transformational growth journeys that result in a stream of innovative growth opportunities.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	BRG	Exact match	Washington, DC, United StatesHQ recorded Sep 24, 2026	1,001-5,000	2,051 contacts →
	Exact match “BRG combines world-leading academic credentials with world-tested business expertise, purpose-built for agility and connectivity, which sets us apart-and gets our clients ahead.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	MCA	Exact match	Westport, CT, United StatesHQ recorded Sep 24, 2026	n/a	1,650 contacts →
	Exact match “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	Cumming Group	Exact match	New York, NY, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,612 contacts →
	Exact match “At Cumming Group, we are passionate about helping our clients execute large-scale, complex projects on time and within budget.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	Kpff Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,487 contacts →
	Exact match “KPFF is a multi-office, multi-discipline engineering firm.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	Charles River Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,479 contacts →
	Exact match “Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,395 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	Rehmann	Exact match	Troy, MI, United StatesHQ recorded Sep 24, 2026	501-1,000	1,323 contacts →
	Exact match “Rehmann is a professional advisory firm that provides accounting and assurance, business solutions and outsourcing, specialized consulting, and wealth management services.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Ardurra	Exact match	Miami, FL, United StatesHQ recorded Sep 24, 2026	1,001-5,000	1,260 contacts →
	Exact match “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	Cornerstone Research	Exact match	San Francisco, CA, United StatesHQ recorded Sep 24, 2026	501-1,000	1,248 contacts →
	Exact match “At Cornerstone Research, we attribute our success to a unique combination of resources: a creative and energetic staff, cutting-edge technology and research, and our work with…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “consultancy firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 32,029 consultancy firms based in the United States

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Consultancy firms based in the United States at a glance

As of Sep 24, 2026

37.8%Verified-email coverage

31.2%Mobile-number coverage

12.6Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · New York

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

24,617

11-50

5,564

51-200

1,329

201-500

277

501-1,000

110

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

112,2970–30

34,32431–60

3,70361–90

12890–180

1,342180+

Company record updated

Median 75.0d

00–30

119,88631–60

171,15261–90

89,44590–180

21,520180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with the United States whose business descriptions match “consultancy firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 151,794 professional contacts with verified work emails across the full matched dataset. 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 24, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Consultancy firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “consultancy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many consultancy firms are there based in the United States?

RevenueBase identified 32,029 company matches for consultancy firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Boston Consulting Group BCG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most consultancy firms?

New York leads with 2100 company records, followed by Chicago (827) and Atlanta (777).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 151,794 professional contacts with verified work emails tracked across these 32,029 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 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.