Company lists · Data refreshed September 2026

Top 25 Business transformation consultancies based in Chicago, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 296 companies tracked

RevenueBase identified 296 business transformation consultancies headquartered in Chicago, United States as of September 2026 and tracks 13,413 professional contacts across them, including 6,624 with verified work emails. New York is the largest hub.

This list covers business transformation consultancies 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 20, 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 20, 2026 86% judged on-target in blind review

296Companies

13,413Contacts tracked

6,624Verified emails

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The 25 largest business transformation consultancies based in Chicago, United States

Ranked by team size

Top 25 of 296 business transformation consultancies based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to business transformation consultancies: 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	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	5,001-10,000	6,978 contacts →
	Indirect 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 20, 2026
2	West Monroe	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	2,129 contacts →
	Indirect evidence “West Monroe is a global business and technology consulting firm passionate about creating value for our clients.” Source: RevenueBase Database · checked Sep 20, 2026
3	Spaulding Ridge	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	678 contacts →
	Indirect evidence “Spaulding Ridge is the modern GSI for the modern executive team.” Source: RevenueBase Database · checked Sep 20, 2026
4	Aarete	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	543 contacts →
	Partial 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 20, 2026
5	Rightpoint	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	479 contacts →
	Partial evidence “Rightpoint has fully integrated into the Genpact brand, bringing experience to the center of how transformation gets done.” Source: RevenueBase Database · checked Sep 20, 2026
6	CODAL	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	261 contacts →
	Indirect evidence “Codal is an award-winning design and development consultancy that helps enterprise organizations solve complex problems and accelerate growth through cutting-edge, data-driven…” Source: RevenueBase Database · checked Sep 20, 2026
7	STA Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	143 contacts →
	Partial evidence “Strategies For Business Transformation STA Group offers end-to-end business, technology and digital strategy for today’s leading businesses.” Source: RevenueBase Database · checked Sep 20, 2026
8	Dunn Solutions, A Kaartech Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	141 contacts →
	Partial evidence “Dunn Solutions is a digital commerce and business transformation consultancy focused on delivering velocity to our clients.” Source: RevenueBase Database · checked Sep 20, 2026
9	Diamond Management & Technology Consultants	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	114 contacts →
	Indirect evidence “Diamond is a management and technology consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026
10	W. Capra	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 20, 2026
11	HBR Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	106 contacts →
	Indirect evidence “HBR Consulting is now part of Harbor.” Source: RevenueBase Database · checked Sep 20, 2026
12	CGN Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
13	Aberdeen Advisors LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	85 contacts →
	Indirect evidence “Headquartered in Chicago, with satellite offices in India and Mexico, Aberdeen Advisors LLC is a boutique digital consultancy providing innovative products and services.” Source: RevenueBase Database · checked Sep 20, 2026
14	Business Solutions & Services BSS - USA	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	82 contacts →
	Partial evidence “A global AI digital transformation consultancy firm delivering data and AI solutions and services, empowering organisations to modernise their digital journeys.” Source: RevenueBase Database · checked Sep 20, 2026
15	Ultra Consultants	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Partial evidence “Ultra Consultants is an independent ERP consulting firm guiding manufacturing and distribution companies on their Digital and Business Transformations.” Source: RevenueBase Database · checked Sep 20, 2026
16	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
17	Liberty Advisor Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
18	Bluedog	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	47 contacts →
	Partial evidence “WE DELIVER GROWTH THROUGH PURPOSE-LED TRANSFORMATION.” Source: RevenueBase Database · checked Sep 20, 2026
19	Acliviti	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
20	Voyage Advisory	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
21	Manifold	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	32 contacts →
	Partial evidence “Manifold is a dynamic consultancy and technology partner helping organizations across industries unlock innovation, drive digital transformation, and achieve sustainable growth.” Source: RevenueBase Database · checked Sep 20, 2026
22	Revel Labs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	31 contacts →
	Partial evidence “Revel Labs was founded from a legacy of leading Fortune 500 companies through technology fueled transformation, from ecommerce to cloud enablement to AI.” Source: RevenueBase Database · checked Sep 20, 2026
23	Source Consulting Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect 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 20, 2026
24	The Proaction Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
25	Blue Star Partners	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Blue Star Partners is a management consulting firm focused on change management, leadership development, project management and organizing for innovation.” Source: RevenueBase Database · checked Sep 20, 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 transformation consultancies. 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 transformation consultancies.
Partial evidence: Its own public description names part of business transformation consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business transformation consultancies. 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 296 business transformation consultancies based in Chicago, United States

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Business transformation consultancies based in Chicago, United States at a glance

As of Sep 20, 2026

49.4%Verified-email coverage

45.3Average contacts per company

1-10Median size (employees)

180.7%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

193

11-50

51-200

201-500

501-1,000

1,001-5,000

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 296 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 transformation consultancies, 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 transformation consultancies”. 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 transformation consultancies), 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 transformation consultancies, 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, 6,624 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 20, 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 transformation consultancies 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 transformation consultancies, 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 transformation consultancies are there based in Chicago, United States?

RevenueBase identified 296 business transformation consultancies 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 has the most business transformation consultancies?

New York leads with 535 headquartered companies, followed by Chicago (296) and Atlanta (295).

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 6,624 verified decision-maker contacts tracked across these 296 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 20, 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.