Company lists · Data refreshed September 2026

Top 18 IT services companies based in Chicago, United States

Name: IT services 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 4, 2026 270 companies tracked

RevenueBase identified 270 company matches for IT services companies associated with Chicago, United States as of September 2026 and tracks 4,467 professional contacts across them, including 1,183 with verified work emails. Across the United States, New York is the largest hub for this category (667 companies); Chicago has 270.

This list covers company matches for IT services 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 4, 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 4, 2026 How this list was built

270Companies

4,467Contacts tracked

1,183Verified emails

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The 18 largest IT services companies based in Chicago, United States

Ranked by team size

Top 18 of 270 company matches for IT services companies based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 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	SDI Presence	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	201-500	389 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 4, 2026 · View company records in RevenueBase
2	Nettxio	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	201-500	362 contacts →
	Exact match “At Nettxio, we're an innovative software and intelligent services company, specializing in business process management, infrastructure planning, and technical implementation.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Glotel, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 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 4, 2026 · View company records in RevenueBase
4	Maven Wave, An Eviden Company	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	501-1,000	189 contacts →
	Exact match “As of April 2023, Maven Wave is now part of Eviden, at Atos business.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	Access ONE INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	138 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 4, 2026 · View company records in RevenueBase
6	Touch Support, Inc. & SNF Back Office	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	201-500	88 contacts →
	Exact match “Touch Support has spent almost 20 years removing and preventing headaches for our clients and giving them peace of mind.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Comtek International	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	201-500	85 contacts →
	Exact match “Comtek International, Inc.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	F3 Technologies INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	82 contacts →
	Exact match “The F3 Mission F3 Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
9	Adifice Technologies	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	61 contacts →
	Exact match “Adifice Technologies is an IT development, services and products firm.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	DTI Diversified Technology INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	60 contacts →
	Exact match “DTI is a 100% African American-owned IT consulting and network services firm with nearly 40 years of experience.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	Cepoch	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	45 contacts →
	Exact match “Cepoch delivers high-quality, reliable solutions in AI, Mobile & Web Apps, Business Intelligence, Salesforce, and Cybersecurity-backed by expert Managed IT Services designed to…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
12	Mars-Technominds, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	43 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
13	OLSYS	Exact match	Chicago, United StatesHQ recorded Sep 4, 2026	51-200	41 contacts →
	Exact match “We partner with fast-growth companies, investors, and mid-sized enterprises to scale faster, modernize smarter, and stay ahead in an AI-driven world.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
14	Simetrica Consulting	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	51-200	41 contacts →
	Exact match “Simetrica Consulting is a computer software company based out of Ave.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
15	Framework IT	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	11-50	40 contacts →
	Exact match “Framework IT is a managed IT services provider specializing in support, strategy, and security for companies who want to form an agile IT environment.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
16	Argyll Infotech INC	Exact match	Chicago, United StatesHQ recorded Sep 4, 2026	11-50	39 contacts →
	Exact match “We are well-versed in a variety of operating systems, networks, and databases.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
17	Smart Technology Services, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	11-50	36 contacts →
	Exact match “At SMaRT Technology Services, our resources are dedicated to helping businesses, schools and governmental agencies by making sure their organization's technology is highly…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
18	US Software Professionals INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 4, 2026	11-50	36 contacts →
	Exact match “USSP (US Software Professionals Inc) is a best in class IT consulting firm offering end to end service and implementation solutions to clients worldwide.” Recorded in the RevenueBase company graph · Sep 4, 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 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 18 of 270 IT services companies based in Chicago, United States

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

As of Sep 4, 2026

26.5%Verified-email coverage

16.5Average contacts per company

11-50Median size (employees)

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

114

11-50

51-200

201-500

501-1,000

1,001-5,000

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 270 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 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 1,183 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 4, 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 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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 270 company matches for IT services 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?

SDI Presence 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 companies?

New York leads the United States with 667 company records, followed by Houston (408) and Austin (303). Chicago has 270.

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 1,183 professional contacts with verified work emails tracked across these 270 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 4, 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.