Skip to main content

Company lists · Data refreshed September 2026

Top 25 Improvement consulting firms based in Chicago, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 951 companies tracked

RevenueBase identified 951 improvement consulting firms headquartered in Chicago, United States as of September 2026 and tracks 33,893 professional contacts across them, including 15,170 with verified work emails. New York is the largest hub.

This list covers 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 26, 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 26, 2026 86% judged on-target in blind review
951Companies
33,893Contacts tracked
15,170Verified emails
Explore this list → Free signup · no credit card · 500 free credits

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

Ranked by team size
Top 25 of 951 improvement consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 26, 2026. RevenueBase Smart Search rates how each company's information relates to 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
HURON
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 20265,001-10,0007,520 contacts →

Indirect evidence

“Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.”

Source: RevenueBase Database · checked Sep 26, 2026
2
Kearney
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 20265,001-10,0006,978 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 26, 2026
3
Accenture Strategy & Consulting
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 20265,001-10,0005,514 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 26, 2026
4
Heidrick & Struggles
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 20261,001-5,0003,376 contacts →

Partial evidence

“Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.”

Source: RevenueBase Database · checked Sep 26, 2026
5
Navigant
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 20265,001-10,0001,029 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 26, 2026
6
Spaulding Ridge
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 2026501-1,000678 contacts →

Indirect evidence

“Spaulding Ridge is the modern GSI for the modern executive team.”

Source: RevenueBase Database · checked Sep 26, 2026
7
DLC
Strong evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500546 contacts →

Strong evidence

“DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.”

Source: RevenueBase Database · checked Sep 26, 2026
8
Aarete
Strong evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500543 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 26, 2026
9
Weaver Consultants Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500382 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 26, 2026
10
Prescouter, INC
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500325 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 26, 2026
11
CSG Government Solutions
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500287 contacts →

Indirect evidence

“CSG is a national leader in planning, managing and supporting complex projects that modernize the IT and business processes of large government programs.”

Source: RevenueBase Database · checked Sep 26, 2026
12
JCA
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 2026n/a265 contacts →

Partial evidence

“JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.”

Source: RevenueBase Database · checked Sep 26, 2026
13
Healthscape Advisors, A Chartis Company
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-200224 contacts →

Partial evidence

“HealthScape Advisors, a Chartis Company is a management consulting firm dedicated to serving clients in the healthcare industry.”

Source: RevenueBase Database · checked Sep 26, 2026
14
Accretive Solutions
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 2026501-1,000217 contacts →

Indirect evidence

“Your World.”

Source: RevenueBase Database · checked Sep 26, 2026
15
RHR International
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500207 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 26, 2026
16
Dpo&co.
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-200187 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 26, 2026
17
STA Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-200143 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 26, 2026
18
Clarity Partners
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-200121 contacts →

Partial evidence

“Clarity Partners is a privately held full-service management and technology consulting firm.”

Source: RevenueBase Database · checked Sep 26, 2026
19
Diamond Management & Technology Consultants
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 2026501-1,000114 contacts →

Partial evidence

“Diamond is a management and technology consulting firm.”

Source: RevenueBase Database · checked Sep 26, 2026
20
W. Capra
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-200108 contacts →

Indirect evidence

“W.”

Source: RevenueBase Database · checked Sep 26, 2026
21
CGN Global
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 2026201-500104 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 26, 2026
22
Performalytic Corp
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-20076 contacts →

Indirect evidence

“Performalytic Corp, headquartered in Naperville, IL, is a leading implementer and thought leader of Analytics and Business Intelligence solutions for many Fortune500 companies.”

Source: RevenueBase Database · checked Sep 26, 2026
23
HCT Healthcare Transformation
Indirect evidenceChicago, IL, United StatesHQ checked Sep 26, 202651-20074 contacts →

Indirect evidence

“Our business is healthcare.”

Source: RevenueBase Database · checked Sep 26, 2026
24
The Keystone Group
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 202611-5063 contacts →

Partial evidence

“The Keystone Group is a results-oriented management consulting firm.”

Source: RevenueBase Database · checked Sep 26, 2026
25
TRC Advisory
Partial evidenceChicago, IL, United StatesHQ checked Sep 26, 202611-5062 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 26, 2026

Showing 25 of 951 improvement 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 15,170 reachable decision-makers.

Free signup · no credit card

View the full list →

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

As of Sep 26, 2026
44.8%Verified-email coverage
35.6Average contacts per company
1-10Median size (employees)
156.4%Largest-city concentration · New York
Sep 26, 2026Page data refreshed

Companies by employee count

1-10
726
11-50
167
51-200
31
201-500
12
501-1,000
7
1,001-5,000
3
5,001-10,000
5

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 951 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 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 “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 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 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, 15,170 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 26, 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.

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 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 improvement consulting firms are there based in Chicago, United States?

RevenueBase identified 951 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?

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

Which city has the most improvement consulting firms?

New York leads with 1487 headquartered companies, followed by Atlanta (960) and Chicago (951).

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 15,170 verified decision-maker contacts tracked across these 951 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 26, 2026.

Ready to reach these companies? Verified emails and direct dials for all 951 improvement consulting firms based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.

More company lists