Company lists · Data refreshed September 2026

Top 25 Transformation consulting firms based in the United States

Name: Transformation 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 6, 2026 33,718 companies tracked

RevenueBase identified 33,718 company matches for transformation consulting firms associated with the United States as of September 2026 and tracks 817,330 professional contacts across them, including 290,582 with verified work emails and 192,470 with mobile numbers. New York is the largest hub.

This list covers company matches for transformation consulting 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 6, 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 6, 2026 How this list was built

33,718Companies

817,330Contacts tracked

290,582Verified emails

192,470Mobile numbers

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The 25 largest transformation consulting firms based in the United States

Ranked by team size

Top 25 of 33,718 company matches for transformation consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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	EXL	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	10001+	40,100 contacts →
	Exact match “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
3	UST	Exact match	Aliso Viejo, CA, United StatesHQ recorded Sep 6, 2026	10001+	34,875 contacts →
	Exact match “UST is a global digital transformation solutions provider.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	Teksystems	Exact match	Hanover, MD, United StatesHQ recorded Sep 6, 2026	10001+	24,693 contacts →
	Exact match “We’re TEKsystems and TEKsystems Global Services.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	Bain & Company	Exact match	Boston, MA, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
6	ZS	Exact match	Evanston, IL, United StatesHQ recorded Sep 6, 2026	10001+	16,896 contacts →
	Exact match “ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Korn Ferry	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 6, 2026	10001+	13,486 contacts →
	Exact match “Korn Ferry is a global consulting firm that powers performance.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Alvarez & Marsal	Exact match	New York, NY, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
9	Synechron	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	10001+	12,820 contacts →
	Exact match “At Synechron, we believe in the power of digital to transform businesses for the better.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	10001+	12,815 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	Slalom	Exact match	Seattle, WA, United StatesHQ recorded Sep 6, 2026	10001+	10,032 contacts →
	Exact match “Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	FTI Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 6, 2026	5,001-10,000	8,964 contacts →
	Exact match “FTI Consulting is the leading global expert firm for organizations facing crisis and transformation, with more than 8,100 employees in 32 countries and territories.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
14	Oliver Wyman	Exact match	New York, NY, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
15	Ci&t	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	5,001-10,000	8,037 contacts →
	Exact match “We are your global partner in tech-integrated business solutions, turning AI ambition into measurable business impact.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	Yash Technologies	Exact match	East Moline, IL, United StatesHQ recorded Sep 6, 2026	5,001-10,000	7,769 contacts →
	Exact match “YASH Technologies is a consulting-led transformation partner with a proven track record of helping customers address their current and prospective digital transformation…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17	HURON	Exact match	Chicago, IL, United StatesHQ recorded Sep 6, 2026	5,001-10,000	7,520 contacts →
	Exact match “Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	Kearney	Exact match	Chicago, IL, United StatesHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
19	Tiger Analytics	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 6, 2026	5,001-10,000	6,160 contacts →
	Exact match “In a world rife with complexity, we help our customers cut through uncertainty, plan strategically, and execute confidently.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	Accenture Strategy & Consulting	Exact match	Chicago, IL, United StatesHQ recorded Sep 6, 2026	5,001-10,000	5,514 contacts →
	Exact match “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	XEBIA	Exact match	Atlanta, GA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	5,116 contacts →
	Exact match “Xebia is a global, award-winning, AI-first consulting, software engineering, and training company.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	Merkle	Exact match	Columbia, MD, United StatesHQ recorded Sep 6, 2026	10001+	4,731 contacts →
	Exact match “Merkle, a dentsu company, powers the experience economy.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	Aricent	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 6, 2026	10001+	4,302 contacts →
	Exact match “Aricent is now Altran, delivering industry innovations at future speed.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	L.E.K. Consulting	Exact match	Boston, MA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	4,093 contacts →
	Exact match “L.E.K.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	RGP	Exact match	Dallas, TX, United StatesHQ recorded Sep 6, 2026	1,001-5,000	3,650 contacts →
	Exact match “RGP (Nasdaq: RGP) is an award-winning global professional services firm with three decades of experience helping the world’s top organizations navigate change and seize…” Recorded in the RevenueBase company graph · Sep 6, 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 “transformation consulting 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 33,718 transformation consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 290,582 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformation consulting firms based in the United States at a glance

As of Sep 6, 2026

35.6%Verified-email coverage

23.5%Mobile-number coverage

24.2Average contacts per company

1-10Median size (employees)

5.1%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

24,134

11-50

6,255

51-200

2,257

201-500

573

501-1,000

209

1,001-5,000

181

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

265,3480–30

20,55731–60

23361–90

15590–180

4,289180+

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 “transformation consulting 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 290,582 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 6, 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.

Transformation consulting 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 “transformation consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformation consulting firms are there based in the United States?

RevenueBase identified 33,718 company matches for transformation consulting 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?

EXL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transformation consulting firms?

New York leads with 1712 company records, followed by Chicago (907) and Atlanta (874).

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 290,582 professional contacts with verified work emails tracked across these 33,718 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 6, 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.