Company lists · Data refreshed September 2026

Top 25 Business improvement consulting firms based in Chicago, United States

Name: Business improvement consulting firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 429 companies tracked

RevenueBase identified 429 business improvement consulting firms headquartered in Chicago, United States as of September 2026 and tracks 10,426 professional contacts across them, including 4,316 with verified work emails. Across the United States, New York is the largest hub for this category (663 companies); Chicago follows with 429.

This list covers business improvement consulting firms headquartered in Chicago, 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

429Companies

10,426Contacts tracked

4,316Verified emails

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The 25 largest business improvement consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 429 business improvement consulting firms based in Chicago, 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	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
2	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
3	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
4	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	501-1,000	217 contacts →
	Indirect evidence “Your World.” Source: RevenueBase Database · checked Sep 23, 2026
5	Diamond Management & Technology Consultants	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	501-1,000	114 contacts →
	Partial evidence “Diamond is a management and technology consulting firm.” Source: RevenueBase Database · checked Sep 23, 2026
6	W. Capra	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	108 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 23, 2026
7	CGN Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	201-500	104 contacts →
	Partial evidence “A Chicago-based firm with offices in Mexico, the UK, France, Turkey, India, and China, providing supply chain, digital, strategy and transformation consulting services to…” Source: RevenueBase Database · checked Sep 23, 2026
8	The Keystone Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	63 contacts →
	Partial evidence “The Keystone Group is a results-oriented management consulting firm.” Source: RevenueBase Database · checked Sep 23, 2026
9	Sales Empowerment Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	62 contacts →
	Indirect evidence “At Sales Empowerment Group, we believe in the power of people.” Source: RevenueBase Database · checked Sep 23, 2026
10	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	201-500	53 contacts →
	Indirect evidence “BlueROCK was founded on the premise that all companies should have a trusted partner for unbiased technology advice and guidance.” Source: RevenueBase Database · checked Sep 23, 2026
11	Strategex	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	52 contacts →
	Indirect evidence “Strategex uses 80/20 and customer research to drive profitable growth for B2B companies.” Source: RevenueBase Database · checked Sep 23, 2026
12	Liberty Advisor Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	201-500	48 contacts →
	Indirect evidence “Liberty Advisor Group is now a Resultant company, uniting senior-led strategic advisory with a 300+-person technical engine to turn complex business challenges into measurable…” Source: RevenueBase Database · checked Sep 23, 2026
13	Mars-Technominds, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	43 contacts →
	Partial evidence “MARS-Technominds has indeed come a long way in setting high standards in technology and consulting services and has certainly proved to be a force to reckon with since its…” Source: RevenueBase Database · checked Sep 23, 2026
14	Acliviti	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	38 contacts →
	Indirect evidence “At Acliviti, we believe exceptional customer experience isn’t just a tech initiative - it’s a strategic advantage.” Source: RevenueBase Database · checked Sep 23, 2026
15	Focus Management Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	37 contacts →
	Indirect evidence “Focus Management Group is headquartered in Chicago, IL, with offices in Tampa, and Cleveland.” Source: RevenueBase Database · checked Sep 23, 2026
16	Ec-United	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	36 contacts →
	Partial evidence “EC-United is a boutique executive consulting firm adept at providing clients with executive services such as IT assessments, strategies, performance management, interim leaders…” Source: RevenueBase Database · checked Sep 23, 2026
17	Voyage Advisory	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	33 contacts →
	Indirect evidence “Voyage’s team of management consultants work side-by-side with leaders to achieve their top objectives and solve their toughest problems.” Source: RevenueBase Database · checked Sep 23, 2026
18	Source Consulting Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	29 contacts →
	Partial evidence “Source Consulting Group LLC is the premier full-service consulting firm focusing exclusively on the strategic and operational business process and technology needs of legal and…” Source: RevenueBase Database · checked Sep 23, 2026
19	CTS Impact	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	29 contacts →
	Partial evidence “CTS Impact is a hands-on business consulting firm focused on delivering practical solutions to complex business issues in the areas of Finance, IT and Human Resources.” Source: RevenueBase Database · checked Sep 23, 2026
20	The Proaction Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	29 contacts →
	Indirect evidence “The ProAction Group is the “Go-To” Operational Resource focused on Private Equity/Portfolio companies.” Source: RevenueBase Database · checked Sep 23, 2026
21	ESA	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	26 contacts →
	Indirect evidence “Precision-Tuned Foodservice Solutions: Expert support and strategic guidance, precisely when your brand needs it.” Source: RevenueBase Database · checked Sep 23, 2026
22	Unbiased Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	18 contacts →
	Indirect evidence “We are UNBIASED, experienced, consultants that help law firms and law departments improve client service delivery, enhance business operations and leverage technology solutions.” Source: RevenueBase Database · checked Sep 23, 2026
23	Sanguine Strategic Advisors	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Indirect evidence “Sanguine Strategic Advisors (SSA) applies 25 years of business development, financial, operational, compliance, legal and leadership experience to bring an Optimistic, Insightful…” Source: RevenueBase Database · checked Sep 23, 2026
24	Fort Dearborn Partners	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Indirect evidence “Fort Dearborn Partners, Inc.” Source: RevenueBase Database · checked Sep 23, 2026
25	Saphineia Manufacturing Partners	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1-10	16 contacts →
	Indirect evidence “Manufacturing a safe, quality food or beverage product, cost-effectively, every day is hard.” 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 429 business improvement consulting firms based in Chicago, United States

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Business improvement consulting firms based in Chicago, United States at a glance

As of Sep 23, 2026

41.4%Verified-email coverage

24.3Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

316

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 429 companies.

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 Chicago, 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 Chicago 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, 4,316 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 in the United States

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 Chicago, United States?

RevenueBase identified 429 business improvement consulting firms headquartered in Chicago, 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?

Kearney, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most business improvement consulting firms?

New York leads the United States 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 4,316 verified decision-maker contacts tracked across these 429 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.