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Company lists · Data refreshed September 2026

Top 25 Ada consulting firms based in Chicago, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 373 companies tracked

RevenueBase identified 373 ada consulting firms headquartered in Chicago, United States as of September 2026 and tracks 12,820 professional contacts across them, including 4,467 with verified work emails. New York is the largest hub.

This list covers ada 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 22, 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 22, 2026 86% judged on-target in blind review
373Companies
12,820Contacts tracked
4,467Verified emails
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The 25 largest ada consulting firms based in Chicago, United States

Ranked by team size
Top 25 of 373 ada consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to ada 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
Accenture Strategy & Consulting
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
2
Navigant
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
3
Spaulding Ridge
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026501-1,000678 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
4
DLC
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500546 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
5
Aarete
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500543 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 22, 2026
6
Weaver Consultants Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
7
Beyond KEY
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500363 contacts →

Indirect evidence

“Our Journey of Growth, Trust, and Purpose Two decades ago, Beyond Key started with a vision not just to solve business problems with technology, but to create lasting impact.”

Source: RevenueBase Database · checked Sep 22, 2026
8
PTS Consulting Services Global
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500251 contacts →

Partial evidence

“Overview PTS Consulting Services (People Technology Services), is a firm that specializes in providing IT consulting and Business consulting services.”

Source: RevenueBase Database · checked Sep 22, 2026
9
Accretive Solutions
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026501-1,000217 contacts →

Indirect evidence

“Your World.”

Source: RevenueBase Database · checked Sep 22, 2026
10
RKON
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200163 contacts →

Indirect evidence

“Since 1998, RKON has delivered IT Transformation helping private equity and enterprise firms achieve Quiet IT from vision to execution.”

Source: RevenueBase Database · checked Sep 22, 2026
11
STA Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
12
Alam, An Accentedge Company
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-500128 contacts →

Partial evidence

“Alam & Company LLC, a Microsoft Certified Partner Consulting company, provides information technology, project management, six sigma, and outsourcing services to public and…”

Source: RevenueBase Database · checked Sep 22, 2026
13
Clarity Partners
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200121 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
14
Diamond Management & Technology Consultants
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 2026501-1,000114 contacts →

Partial evidence

“Diamond is a management and technology consulting firm.”

Source: RevenueBase Database · checked Sep 22, 2026
15
W. Capra
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200108 contacts →

Indirect evidence

“W.”

Source: RevenueBase Database · checked Sep 22, 2026
16
Kenway Consulting
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-200104 contacts →

Partial evidence

“Kenway Consulting is a management and technology consulting firm whose entire reason for existence is to help companies and its employees.”

Source: RevenueBase Database · checked Sep 22, 2026
17
CGN Global
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
18
Comtek International
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-50088 contacts →

Indirect evidence

“Comtek International, Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
19
Aberdeen Advisors LLC
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20085 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 22, 2026
20
Logan Consulting
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20084 contacts →

Partial evidence

“Logan Consulting helps manufacturing, distribution and service companies use technology to reduce costs and increase sales resulting in higher company profits.”

Source: RevenueBase Database · checked Sep 22, 2026
21
Performalytic Corp
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 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 22, 2026
22
DTI Diversified Technology INC
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20062 contacts →

Partial evidence

“DTI is a 100% African American-owned IT consulting and network services firm with nearly 40 years of experience.”

Source: RevenueBase Database · checked Sep 22, 2026
23
Bluerock
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-50053 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 22, 2026
24
Liberty Advisor Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 22, 2026201-50048 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 22, 2026
25
Mars-Technominds, INC
Partial evidenceChicago, IL, United StatesHQ checked Sep 22, 202651-20043 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 22, 2026

Showing 25 of 373 ada 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 4,467 reachable decision-makers.

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

As of Sep 22, 2026
34.8%Verified-email coverage
34.4Average contacts per company
1-10Median size (employees)
178.3%Largest-city concentration · New York
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
231
11-50
87
51-200
33
201-500
13
501-1,000
6
5,001-10,000
3

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 373 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 ada 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 “ada 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 ada 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 ada 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, 4,467 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 22, 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.

Ada 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 ada 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 ada consulting firms are there based in Chicago, United States?

RevenueBase identified 373 ada 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?

Accenture Strategy & Consulting, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most ada consulting firms?

New York leads with 665 headquartered companies, followed by Houston (441) and Atlanta (396).

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 4,467 verified decision-maker contacts tracked across these 373 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 22, 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.

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