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Company lists · Data refreshed September 2026

Top 25 Business IT consulting firms based in Chicago, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 436 companies tracked

RevenueBase identified 436 business IT consulting firms headquartered in Chicago, United States as of September 2026 and tracks 6,728 professional contacts across them, including 2,202 with verified work emails. New York is the largest hub.

This list covers business IT 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 23, 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 23, 2026 86% judged on-target in blind review
436Companies
6,728Contacts tracked
2,202Verified emails
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The 25 largest business IT consulting firms based in Chicago, United States

Ranked by team size
Top 25 of 436 business IT consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business IT 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
Navigant
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
2
DLC
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
3
SDI Presence
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500391 contacts →

Partial evidence

“SDI Presence LLC is an IT consultancy and managed services provider (MSP) that leverages its strong team presence to advance our clients to a secure digital enterprise.”

Source: RevenueBase Database · checked Sep 23, 2026
4
Beyond KEY
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
5
Ascend Technologies
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500319 contacts →

Indirect evidence

“We're an award-winning Technology Solution Provider dedicated to safeguarding organizations across the United States.”

Source: RevenueBase Database · checked Sep 23, 2026
6
Q1 Technologies, INC
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 20261,001-5,000262 contacts →

Partial evidence

“Q1 Technologies is a global IT solutions and services provider focused on delivering innovative, scalable, and high-impact technology outcomes for enterprises worldwide.”

Source: RevenueBase Database · checked Sep 23, 2026
7
PTS Consulting Services Global
Strong evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500251 contacts →

Strong 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 23, 2026
8
Accretive Solutions
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 2026501-1,000217 contacts →

Indirect evidence

“Your World.”

Source: RevenueBase Database · checked Sep 23, 2026
9
Krasan Consulting Services
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 2026201-500172 contacts →

Partial evidence

“Krasan Consulting Services is a Chicago-based boutique management consulting and technology solutions integrator.”

Source: RevenueBase Database · checked Sep 23, 2026
10
RKON
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-200163 contacts →

Partial 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 23, 2026
11
Access ONE INC
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-200140 contacts →

Indirect evidence

“Access One is a business technology services and communications provider, dedicated to world-class technologies and an award-winning client experience.”

Source: RevenueBase Database · checked Sep 23, 2026
12
W. Capra
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-200108 contacts →

Indirect evidence

“W.”

Source: RevenueBase Database · checked Sep 23, 2026
13
HBR Consulting
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 2026501-1,000106 contacts →

Partial evidence

“HBR Consulting is now part of Harbor.”

Source: RevenueBase Database · checked Sep 23, 2026
14
Empist
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-20089 contacts →

Indirect evidence

“At EMPIST, our mission is to fuel businesses with the technology they need to succeed.”

Source: RevenueBase Database · checked Sep 23, 2026
15
Logan Consulting
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
16
Performalytic Corp
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
17
Entara
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-20069 contacts →

Indirect evidence

“Experiencing a security incident?”

Source: RevenueBase Database · checked Sep 23, 2026
18
The Keystone Group
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 202611-5063 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
19
DTI Diversified Technology INC
Strong evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-20062 contacts →

Strong 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 23, 2026
20
Ultra Consultants
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 202651-20060 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 23, 2026
21
Bluerock
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
22
Liberty Advisor Group
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
23
Mars-Technominds, INC
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
24
Framework IT
Partial evidenceChicago, IL, United StatesHQ checked Sep 23, 202611-5041 contacts →

Partial evidence

“Framework IT is a managed IT services provider specializing in support, strategy, and security for companies who want to form an agile IT environment.”

Source: RevenueBase Database · checked Sep 23, 2026
25
MIS Computer MSP
Indirect evidenceChicago, IL, United StatesHQ checked Sep 23, 202611-5040 contacts →

Indirect evidence

“MIS Computer: More Than An MSP.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 436 business IT 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 2,202 reachable decision-makers.

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Business IT consulting firms based in Chicago, United States at a glance

As of Sep 23, 2026
32.7%Verified-email coverage
15.4Average contacts per company
1-10Median size (employees)
185.3%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
262
11-50
121
51-200
36
201-500
10
501-1,000
4
1,001-5,000
1
5,001-10,000
1
10001+
1

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 436 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 IT 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 “business IT 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 business IT 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 business IT 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, 2,202 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 23, 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 IT 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 business IT 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 business IT consulting firms are there based in Chicago, United States?

RevenueBase identified 436 business IT 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?

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

Which city has the most business IT consulting firms?

New York leads with 808 headquartered companies, followed by Houston (499) and Atlanta (464).

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 2,202 verified decision-maker contacts tracked across these 436 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 23, 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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