Company lists · Data refreshed September 2026

Top 25 Consulting companies based in Chicago, United States

Name: Consulting companies based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 1,559 companies tracked

This directory lists 1,559 consulting companies based in Chicago, United States, with 47,609 business contacts and 20,754 email addresses. Updated September 2026, it identifies New York as the single most-represented city among the companies on the list.

Consulting companies provide expert advice, analysis, and implementation support to organizations in areas such as management, operations, technology, finance, or specialized industries. This list covers companies that provide consulting services to organizational clients, including general management, operational, technical, financial, and industry-specific advisory services. Ranked by team size, largest first. Data current as of September 8, 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 8, 2026 86% judged on-target in blind review

1,559Companies

47,609Contacts tracked

20,754Verified emails

14,664Mobile numbers

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The 25 largest consulting companies based in Chicago, United States

Ranked by team size

Top 25 of 1,559 consulting companies based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to consulting companies: 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	HURON	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	5,001-10,000	7,520 contacts →
	“Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.” Source: company website · checked Sep 8, 2026
2	Kearney	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	5,001-10,000	6,978 contacts →
	“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: company website · checked Sep 8, 2026
3	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	5,001-10,000	5,514 contacts →
	“Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: company website · checked Sep 8, 2026
4	Heidrick & Struggles	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	1,001-5,000	3,376 contacts →
	“Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.” Source: company website · checked Sep 8, 2026
5	West Monroe	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	1,001-5,000	2,129 contacts →
	“West Monroe is a global business and technology consulting firm passionate about creating value for our clients.” Source: company website · checked Sep 8, 2026
6	Addison Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	1,001-5,000	1,840 contacts →
	“Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: company website · checked Sep 8, 2026
7	Sikich	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	1,001-5,000	1,688 contacts →
	“Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: company website · checked Sep 8, 2026
8	Navigant	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	5,001-10,000	1,029 contacts →
	“Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Source: company website · checked Sep 8, 2026
9	DHR Global	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	501-1,000	656 contacts →
	“For more than 35 years, DHR has been a leading provider of executive search, leadership consulting and emerging leader search solutions, serving more than 60 markets around the…” Source: company website · checked Sep 8, 2026
10	DLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	546 contacts →
	“DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: company website · checked Sep 8, 2026
11	Aarete	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	543 contacts →
	“AArete is a global management and technology consulting firm specializing in driving profitability improvement, digital transformation, and strategy & change for clients.” Source: company website · checked Sep 8, 2026
12	Business Talent Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	51-200	516 contacts →
	“Business Talent Group (BTG), a Heidrick & Struggles company, connects leading companies with independent management consultants, subject matter experts, and executives to solve…” Source: company website · checked Sep 8, 2026
13	Weaver Consultants Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	382 contacts →
	“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: company website · checked Sep 8, 2026
14	Primera Engineers	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	362 contacts →
	“Primera Engineers is a mid-size, full-service, woman-owned (WBE) engineering design and consulting firm specializing in four areas of expertise: buildings, transportation…” Source: company website · checked Sep 8, 2026
15	Prescouter, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	325 contacts →
	“PreScouter is a strategy consulting firm supporting innovation-minded clients with challenges related to strategy, science, technology, and growth.” Source: company website · checked Sep 8, 2026
16	JCA	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	n/a	265 contacts →
	“JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Source: company website · checked Sep 8, 2026
17	Avant Communications	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	51-200	263 contacts →
	“As the nation’s premier distributor of next generation technologies, AVANT has the resources and relationships needed to successfully navigate the ever-changing world of…” Source: company website · checked Sep 8, 2026
18	PTS Consulting Services Global	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	251 contacts →
	“Overview PTS Consulting Services (People Technology Services), is a firm that specializes in providing IT consulting and Business consulting services.” Source: company website · checked Sep 8, 2026
19	Synectics INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	248 contacts →
	Source: company website · checked Sep 8, 2026
20	Healthscape Advisors, A Chartis Company	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	51-200	224 contacts →
	“HealthScape Advisors, a Chartis Company is a management consulting firm dedicated to serving clients in the healthcare industry.” Source: company website · checked Sep 8, 2026
21	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	501-1,000	217 contacts →
	“Your World.” Source: company website · checked Sep 8, 2026
22	ESD NOW Stantec Consulting Services	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	208 contacts →
	“A global company, ESD is a leader in Improving Society Through the Built Environment.” Source: company website · checked Sep 8, 2026
23	RHR International	Strong evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	207 contacts →
	“RHR is a globally respected leadership consulting firm that helps businesses drive performance and growth through data-led assessment, world-class coaching, and executive…” Source: company website · checked Sep 8, 2026
24	Dpo&co.	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	51-200	187 contacts →
	“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: company website · checked Sep 8, 2026
25	Portage Point Partners	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 8, 2026	201-500	173 contacts →
	“Portage Point is a business advisory, interim management and investment banking firm intensely focused on the middle market.” Source: company website · checked Sep 8, 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: consulting companies. 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 consulting companies.
Partial evidence: Its own public description names part of consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consulting companies. 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 1,559 consulting companies based in Chicago, United States

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Consulting companies based in Chicago, United States at a glance

As of Sep 8, 2026

43.6%Verified-email coverage

30.8%Mobile-number coverage

30.5Average contacts per company

1-10Median size (employees)

194.5%Largest-city concentration · New York

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

1,093

11-50

326

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

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

Email last verified

Median 11.0d

18,6610–30

1,55031–60

1661–90

1090–180

517180+

Company record updated

Median 56.0d

00–30

26,62031–60

15,01061–90

3,41290–180

2,567180+

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 consulting companies, 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 “consulting companies”. 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 consulting companies), 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 consulting companies, 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, 20,754 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 8, 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.

Consulting companies by metro in the United States

Frequently asked

How many consulting companies are based in Chicago, United States?

The list contains 1,559 consulting companies based in Chicago, United States.

Which city has the most consulting companies on the list?

New York is the single most-represented city among the consulting companies on the list.

How can I find contacts at consulting companies?

The directory includes 47,609 business contacts and 20,754 email addresses for the listed consulting companies.

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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.