Company lists · Data refreshed September 2026

Top 25 Commercial consulting firms based in Chicago, United States

Name: Commercial 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 28, 2026 606 companies tracked

RevenueBase identified 606 commercial consulting firms headquartered in Chicago, United States as of September 2026 and tracks 18,731 professional contacts across them, including 7,114 with verified work emails. Across the United States, New York is the largest hub for this category (1,196 companies); Chicago follows with 606.

This list covers commercial 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 28, 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 28, 2026 86% judged on-target in blind review

606Companies

18,731Contacts tracked

7,114Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest commercial consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 606 commercial consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to commercial 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 28, 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 28, 2026
2	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	5,001-10,000	5,514 contacts →
	Indirect evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 28, 2026
3	Aarete	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
4	Weaver Consultants Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	382 contacts →
	Indirect evidence “From its inception in 1991, Weaver Consultants Group has been founded upon the tenets of attentive and responsive customer service, strong project management, and solid internal…” Source: RevenueBase Database · checked Sep 28, 2026
5	Prescouter, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	325 contacts →
	Partial evidence “PreScouter is a strategy consulting firm supporting innovation-minded clients with challenges related to strategy, science, technology, and growth.” Source: RevenueBase Database · checked Sep 28, 2026
6	Alexander Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	296 contacts →
	Partial evidence “Alexander Group provides go-to-market consulting services to marketing, sales, service and talent leaders.” Source: RevenueBase Database · checked Sep 28, 2026
7	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	217 contacts →
	Indirect evidence “Your World.” Source: RevenueBase Database · checked Sep 28, 2026
8	Dpo&co.	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	187 contacts →
	Indirect evidence “DPO & Co specializes in helping Private Equity firms and their portfolio companies gain fact-based insights during the diligence process and realize post-close synergies and value…” Source: RevenueBase Database · checked Sep 28, 2026
9	Portage Point Partners	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	173 contacts →
	Indirect evidence “Portage Point is a business advisory, interim management and investment banking firm intensely focused on the middle market.” Source: RevenueBase Database · checked Sep 28, 2026
10	STA Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	143 contacts →
	Indirect 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 28, 2026
11	Marshall Associates	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	133 contacts →
	Indirect evidence “In today’s digital world, you still need the human touch.” Source: RevenueBase Database · checked Sep 28, 2026
12	Diamond Management & Technology Consultants	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	114 contacts →
	Partial evidence “Diamond is a management and technology consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
13	W. Capra	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	108 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 28, 2026
14	HBR Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	106 contacts →
	Partial evidence “HBR Consulting is now part of Harbor.” Source: RevenueBase Database · checked Sep 28, 2026
15	CGN Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
16	Ocean Tomo, A Part Of J.S. Held	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	87 contacts →
	Partial evidence “Established in 2003, Ocean Tomo, LLC provides Financial Expert, Management Consulting, and Advisory services related to intellectual property (IP) and other intangible assets…” Source: RevenueBase Database · checked Sep 28, 2026
17	SIM Advisory, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	77 contacts →
	Indirect evidence “SIM Advisory is an Analytics and Management Consultancy based in Chicago with specialized expertise in Pricing Methodologies, Processes, and Organization We are pricing focused…” Source: RevenueBase Database · checked Sep 28, 2026
18	The Keystone Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	63 contacts →
	Partial evidence “The Keystone Group is a results-oriented management consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
19	TRC Advisory	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	62 contacts →
	Partial evidence “TRC Advisory is a boutique consulting firm focused on working with clients to define and deploy the strategies and tactics necessary to consistently outperform competitors and…” Source: RevenueBase Database · checked Sep 28, 2026
20	Sales Empowerment Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Indirect evidence “At Sales Empowerment Group, we believe in the power of people.” Source: RevenueBase Database · checked Sep 28, 2026
21	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
22	Strategex	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
23	Messina Group Consulting Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	50 contacts →
	Indirect evidence “Messina Group is a Trusted Advisor to Private Equity Firms, their Portfolio companies, and Investment Banks to Accelerate Value Creation at the intersection of Business…” Source: RevenueBase Database · checked Sep 28, 2026
24	Development Specialists, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	48 contacts →
	Partial evidence “DSI is a leading provider of management consulting and financial advisory services, including turnaround consulting, financial restructure, litigation support and forensic…” Source: RevenueBase Database · checked Sep 28, 2026
25	Liberty Advisor Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 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: commercial 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 commercial consulting firms.
Partial evidence: Its own public description names part of commercial consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial 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 606 commercial consulting firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,114 reachable decision-makers.

Free signup · no credit card

View the full list →

Commercial consulting firms based in Chicago, United States at a glance

As of Sep 28, 2026

38.0%Verified-email coverage

30.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

444

11-50

123

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 606 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 commercial 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 “commercial 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 commercial 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 commercial 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, 7,114 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 28, 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.

Commercial 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 commercial 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 commercial consulting firms are there based in Chicago, United States?

RevenueBase identified 606 commercial 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 commercial consulting firms?

New York leads the United States with 1,196 headquartered companies, followed by Chicago (606) and Atlanta (556).

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 7,114 verified decision-maker contacts tracked across these 606 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 606 commercial consulting firms based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

Commercial consulting firms by geography

Browse the directory

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.