Company lists · Data refreshed October 2026

Top 25 Insight consulting firms based in the United States

RevenueBase identified 35,451 company matches for insight consulting firms associated with the United States as of October 2026 and tracks 494,974 professional contacts across them, including 196,483 with verified work emails and 142,254 with mobile numbers. New York is the largest hub.

This list covers company matches for insight 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 October 1, 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 Oct 1, 2026 How this list was built
35,451Companies
494,974Contacts tracked
196,483Verified emails
142,254Mobile numbers
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The 25 largest insight consulting firms based in the United States

Ranked by team size
Top 25 of 35,451 company matches for insight consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Oct 1, 202610001+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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202610001+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 · Oct 1, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Oct 1, 202610001+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 · Oct 1, 2026 · View company records in RevenueBase
4Exact matchEvanston, IL, United StatesHQ recorded Oct 1, 202610001+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 · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLos Angeles, CA, United StatesHQ recorded Oct 1, 202610001+13,486 contacts →

Exact match

“Korn Ferry is a global consulting firm that powers performance.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Oct 1, 202610001+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 · Oct 1, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Oct 1, 20265,001-10,0008,964 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 · Oct 1, 2026 · View company records in RevenueBase
8Exact matchMenlo Park, CA, United StatesHQ recorded Oct 1, 20265,001-10,0008,779 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 · Oct 1, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Oct 1, 20265,001-10,0008,230 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 · Oct 1, 2026 · View company records in RevenueBase
10Exact matchEast Moline, IL, United StatesHQ recorded Oct 1, 20265,001-10,0007,769 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 · Oct 1, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Oct 1, 20265,001-10,0006,978 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 · Oct 1, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Oct 1, 20265,001-10,0005,514 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 · Oct 1, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Oct 1, 20261,001-5,0005,082 contacts →

Exact match

“From strategy to execution.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchChicago, IL, United StatesHQ recorded Oct 1, 2026n/a4,751 contacts →

Exact match

“We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Oct 1, 20261,001-5,0004,093 contacts →

Exact match

“L.E.K.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Oct 1, 20261,001-5,0003,583 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 · Oct 1, 2026 · View company records in RevenueBase
17Exact matchChicago, IL, United StatesHQ recorded Oct 1, 20261,001-5,0003,376 contacts →

Exact match

“Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchSomerset, NJ, United StatesHQ recorded Oct 1, 2026n/a3,285 contacts →

Exact match

“For over 25 years, eTeam has been trusted by global organizations to lead high-stakes programs where execution matters as much as strategy.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchCambridge, MA, United StatesHQ recorded Oct 1, 20261,001-5,0003,071 contacts →

Exact match

“Forrester is one of the most influential research and advisory firms in the world.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchSan Antonio, TX, United StatesHQ recorded Oct 1, 20261,001-5,0002,330 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 · Oct 1, 2026 · View company records in RevenueBase
21Exact matchChicago, IL, United StatesHQ recorded Oct 1, 20261,001-5,0002,129 contacts →

Exact match

“West Monroe is a global business and technology consulting firm passionate about creating value for our clients.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Oct 1, 20261,001-5,0002,051 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 · Oct 1, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Oct 1, 20261,001-5,0002,047 contacts →

Exact match

“Ankura Consulting Group, LLC (“Ankura”) is a leading global consulting and expert advisory firm that partners with organizations at critical inflection points.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Oct 1, 20261,001-5,0002,026 contacts →

Exact match

“Gallup delivers analytics and advice to help leaders and organizations solve their most pressing problems.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Oct 1, 20261,001-5,0001,930 contacts →

Exact match

“Teneo is the global CEO advisory firm.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 35,451 insight consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 196,483 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Insight consulting firms based in the United States at a glance

As of Oct 1, 2026
39.7%Verified-email coverage
28.7%Mobile-number coverage
14.0Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · New York
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
27,687
11-50
5,785
51-200
1,414
201-500
312
501-1,000
107
1,001-5,000
80
5,001-10,000
17
10001+
30

Freshness & accuracy

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

Email last verified

Median 34.0d

Company record updated

Median 77.0d

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 “insight 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 196,483 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 October 1, 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.

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

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

RevenueBase identified 35,451 company matches for insight consulting firms associated with the United States as of October 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 insight consulting firms?

New York leads with 2080 company records, followed by Chicago (1018) and Atlanta (894).

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 196,483 professional contacts with verified work emails tracked across these 35,451 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 October 1, 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.