Company lists · Data refreshed September 2026

Top 25 Business improvement consulting firms based in the United States

Name: Business improvement 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 23, 2026 20,320 companies tracked

RevenueBase identified 20,320 business improvement consulting firms headquartered in the United States as of September 2026 and tracks 190,264 professional contacts across them, including 61,797 with verified work emails and 52,652 with mobile numbers. New York is the largest hub.

This list covers business improvement consulting 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 23, 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 23, 2026 86% judged on-target in blind review

20,320Companies

190,264Contacts tracked

61,797Verified emails

52,652Mobile numbers

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The 25 largest business improvement consulting firms based in the United States

Ranked by team size

Top 25 of 20,320 business improvement consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business improvement consulting 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	EXL	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	10001+	40,100 contacts →
	Indirect evidence “Choosing a digital partner is about more than capabilities, it’s about collaboration and character.” Source: RevenueBase Database · checked Sep 23, 2026
2	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 23, 2026	5,001-10,000	8,779 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 23, 2026
3	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 23, 2026
4	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 23, 2026
5	Alixpartners	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,583 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 23, 2026
6	Frost & Sullivan	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,330 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 23, 2026
7	MCA	Partial evidence	Westport, CT, United StatesHQ checked Sep 23, 2026	n/a	1,650 contacts →
	Partial evidence “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Source: RevenueBase Database · checked Sep 23, 2026
8	Argano	Indirect evidence	Plano, TX, United StatesHQ checked Sep 23, 2026	1,001-5,000	1,603 contacts →
	Indirect evidence “Argano is the world’s first and largest digital services consultancy focused exclusively on enabling high performance across our clients’ business operations, at scale and around…” Source: RevenueBase Database · checked Sep 23, 2026
9	FBSPL	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	1,224 contacts →
	Partial evidence “FBSPL is an AI-integrated consulting firm that helps businesses enhance efficiency through intelligent processes, technology, and domain expertise.” Source: RevenueBase Database · checked Sep 23, 2026
10	Riveron	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 23, 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 23, 2026
11	W3global	Partial evidence	Frisco, TX, United StatesHQ checked Sep 23, 2026	501-1,000	1,149 contacts →
	Partial evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 23, 2026
12	MAP	Strong evidence	Sherman Oaks, CA, United StatesHQ checked Sep 23, 2026	n/a	912 contacts →
	Strong evidence “We are a Performance Improvement Consulting Firm Increase profitability and productivity with our proven Management System™.” Source: RevenueBase Database · checked Sep 23, 2026
13	Mobilecomm Professionals, INC	Indirect evidence	Richardson, TX, United StatesHQ checked Sep 23, 2026	501-1,000	706 contacts →
	Indirect evidence “MobileComm is now fully integrated with UST.” Source: RevenueBase Database · checked Sep 23, 2026
14	Clark Schaefer Hackett	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 23, 2026	501-1,000	683 contacts →
	Indirect evidence “Clark Schaefer Hackett is more than an accounting and advisory firm; we’re striving to be your most valued advisor.” Source: RevenueBase Database · checked Sep 23, 2026
15	Pariveda	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 23, 2026	501-1,000	645 contacts →
	Indirect evidence “Pariveda is a North American-based, employee-owned professional services firm.” Source: RevenueBase Database · checked Sep 23, 2026
16	Analytix Solutions	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 23, 2026	501-1,000	640 contacts →
	Indirect evidence “Welcome to Analytix Solutions!” Source: RevenueBase Database · checked Sep 23, 2026
17	SEI	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 23, 2026	501-1,000	618 contacts →
	Partial evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 23, 2026
18	SSA & Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	n/a	605 contacts →
	Indirect evidence “SSA & Company transforms companies to enhance business outcomes (e.g, growth, profit, capability).” Source: RevenueBase Database · checked Sep 23, 2026
19	The Resource Group, Spend Management Solutions	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 23, 2026	201-500	557 contacts →
	Indirect evidence “The Resource Group, LLC is a business transformation services organization that specializes in the area of non-payroll spend management and the processes required to sustain the…” Source: RevenueBase Database · checked Sep 23, 2026
20	DLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	201-500	546 contacts →
	Strong evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 23, 2026
21	Aarete	Strong evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	201-500	543 contacts →
	Strong evidence “AArete is a global management and technology consulting firm specializing in driving profitability improvement, digital transformation, and strategy & change for clients.” Source: RevenueBase Database · checked Sep 23, 2026
22	Logic, Part Of Accenture	Indirect evidence	Bloomington, MN, United StatesHQ checked Sep 23, 2026	1,001-5,000	496 contacts →
	Indirect evidence “Logic works with the world’s leading retailers to help them move faster, innovate smarter, and thrive in the face of retail disruption.” Source: RevenueBase Database · checked Sep 23, 2026
23	Sendero	Partial evidence	Dallas, TX, United StatesHQ checked Sep 23, 2026	201-500	420 contacts →
	Partial evidence “Sendero is a management consulting firm that optimizes technology, improves operations, advances workforce productivity, and enhances customer experience-all to deliver tangible…” Source: RevenueBase Database · checked Sep 23, 2026
24	Kaiser Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	51-200	397 contacts →
	Indirect evidence “Kaiser Associates was founded in 1981 with a simple yet powerful mission: to help executives make more informed strategic and operational decisions by incorporating external…” Source: RevenueBase Database · checked Sep 23, 2026
25	Exavalu	Indirect evidence	Newport Beach, CA, United StatesHQ checked Sep 23, 2026	501-1,000	382 contacts →
	Indirect evidence “Exavalu is a global insurance-specialized engineering and technology firm that combines deep industry expertise with modern engineering and a suite of products, platforms, and…” Source: RevenueBase Database · checked Sep 23, 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: business improvement consulting 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 business improvement consulting firms.
Partial evidence: Its own public description names part of business improvement consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business improvement consulting 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 20,320 business improvement consulting firms based in the United States

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Business improvement consulting firms based in the United States at a glance

As of Sep 23, 2026

32.5%Verified-email coverage

27.7%Mobile-number coverage

9.4Average contacts per company

1-10Median size (employees)

3.3%Largest-city concentration · New York

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

14,867

11-50

2,584

51-200

570

201-500

128

501-1,000

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

45,8400–30

14,28031–60

97561–90

3290–180

670180+

Company record updated

Median 85.0d

00–30

48,74331–60

80,09561–90

51,99890–180

9,428180+

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 business improvement consulting 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 “business improvement consulting 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 business improvement consulting 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 business improvement consulting 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, 61,797 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 23, 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.

Business improvement consulting 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 business improvement consulting 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 business improvement consulting firms are there based in the United States?

RevenueBase identified 20,320 business improvement consulting 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?

EXL, headquartered in New York, tops this list with the largest team on record.

Which city has the most business improvement consulting firms?

New York leads with 663 headquartered companies, followed by Chicago (429) and Atlanta (426).

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 61,797 verified decision-maker contacts tracked across these 20,320 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 23, 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.