Company lists · Data refreshed September 2026

Top 25 IT services and IT consulting companies based in Chicago, United States

Name: IT services and IT 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 27, 2026 598 companies tracked

RevenueBase identified 598 company matches for IT services and IT consulting companies associated with Chicago, United States as of September 2026 and tracks 14,761 professional contacts across them, including 5,415 with verified work emails. Across the United States, New York is the largest hub for this category (1,309 companies); Chicago has 598.

This list covers company matches for IT services and IT consulting companies associated with Chicago, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built

598Companies

14,761Contacts tracked

5,415Verified emails

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The 25 largest IT services and IT consulting companies based in Chicago, United States

Ranked by team size

Top 25 of 598 company matches for IT services and IT consulting companies based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AHEAD	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,989 contacts →
	Exact match “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Navigant	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	5,001-10,000	1,029 contacts →
	Exact match “Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	DLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	546 contacts →
	Exact match “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Teceze	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	432 contacts →
	Exact match “Teceze is a global IT services company helping businesses modernise their technology infrastructure and drive measurable outcomes through Cloud, AI, Cybersecurity, Managed…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	SDI Presence	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	391 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Beyond KEY	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	363 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	Redmane Technology LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	329 contacts →
	Exact match “RedMane is a software solutions and systems integration firm that helps health and human services organizations address their most complex challenges.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Ascend Technologies	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	319 contacts →
	Exact match “We're an award-winning Technology Solution Provider dedicated to safeguarding organizations across the United States.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Q1 Technologies, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	262 contacts →
	Exact match “Q1 Technologies is a global IT solutions and services provider focused on delivering innovative, scalable, and high-impact technology outcomes for enterprises worldwide.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	PTS Consulting Services Global	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	251 contacts →
	Exact match “Overview PTS Consulting Services (People Technology Services), is a firm that specializes in providing IT consulting and Business consulting services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Glotel, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	219 contacts →
	Exact match “Founded in 1989, Glotel opened its doors as a telecom staffing provider.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Accretive Solutions	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	501-1,000	217 contacts →
	Exact match “Your World.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	RL Canning	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	205 contacts →
	Exact match “RL Canning is a global IT managed service and consultancy dedicated to working alongside our customers to enhance the digital workplace with a clear focus on value by maximizing…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Maven Wave, An Eviden Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	501-1,000	184 contacts →
	Exact match “As of April 2023, Maven Wave is now part of Eviden, at Atos business.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Krasan Consulting Services	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	172 contacts →
	Exact match “Krasan Consulting Services is a Chicago-based boutique management consulting and technology solutions integrator.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	RKON	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	163 contacts →
	Exact match “Since 1998, RKON has delivered IT Transformation helping private equity and enterprise firms achieve Quiet IT from vision to execution.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	STA Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	143 contacts →
	Exact match “Strategies For Business Transformation STA Group offers end-to-end business, technology and digital strategy for today’s leading businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Dunn Solutions, A Kaartech Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	1,001-5,000	141 contacts →
	Exact match “Dunn Solutions is a digital commerce and business transformation consultancy focused on delivering velocity to our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Access ONE INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	140 contacts →
	Exact match “Access One is a business technology services and communications provider, dedicated to world-class technologies and an award-winning client experience.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Alam, An Accentedge Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	128 contacts →
	Exact match “Alam & Company LLC, a Microsoft Certified Partner Consulting company, provides information technology, project management, six sigma, and outsourcing services to public and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Cuesta Partners	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	122 contacts →
	Exact match “We believe in the power of technology to create sustained, differentiated advantage.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Clarity Partners	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	121 contacts →
	Exact match “Clarity Partners is a privately held full-service management and technology consulting firm.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	TBI INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	120 contacts →
	Exact match “TBI delivers enterprise technology that drives successful business outcomes for IT selling partners and their customers – all with a personal and unbiased approach backed by rapid…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	W. Capra	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	51-200	108 contacts →
	Exact match “W.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Productive Edge	Exact match	Chicago, IL, United StatesHQ recorded Sep 27, 2026	201-500	107 contacts →
	Exact match “Productive Edge is a digital business consulting and technology solutions company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT services and IT consulting companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 598 IT services and IT consulting companies based in Chicago, United States

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IT services and IT consulting companies based in Chicago, United States at a glance

As of Sep 27, 2026

36.7%Verified-email coverage

24.7Average contacts per company

11-50Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

284

11-50

189

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 598 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Chicago, United States whose business descriptions match “IT services and IT consulting companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,415 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT services and IT consulting companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT services and IT consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services and IT consulting companies are there based in Chicago, United States?

RevenueBase identified 598 company matches for IT services and IT consulting companies associated with Chicago, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AHEAD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most IT services and IT consulting companies?

New York leads the United States with 1,309 company records, followed by Houston (842) and Dallas (638). Chicago has 598.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,415 professional contacts with verified work emails tracked across these 598 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 SmartSearch, 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.