Company lists · Data refreshed September 2026

Top 25 IT outsourcing services based in Chicago, United States

Name: IT outsourcing services 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 103 companies tracked

RevenueBase identified 103 IT outsourcing services headquartered in Chicago, United States as of September 2026 and tracks 2,098 professional contacts across them, including 327 with verified work emails. Across the United States, New York is the largest hub for this category (258 companies); Chicago has 103.

This list covers IT outsourcing services 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 27, 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 27, 2026 86% judged on-target in blind review

103Companies

2,098Contacts tracked

327Verified emails

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The 25 largest IT outsourcing services based in Chicago, United States

Ranked by team size

Top 25 of 103 IT outsourcing services based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT outsourcing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Q1 Technologies, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	262 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 27, 2026
2	PTS Consulting Services Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	251 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 27, 2026
3	247digitize	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	217 contacts →
	Partial evidence “247Digitize is an outsourcing and tech partner that optimizes and manages non-core processes so your key resources can focus on productivity and growth.” Source: RevenueBase Database · checked Sep 27, 2026
4	Varteq INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	138 contacts →
	Indirect evidence “VARTEQ brings cost effective offshore software development and testing solutions to the clients around the globe.” Source: RevenueBase Database · checked Sep 27, 2026
5	Touch Support, Inc. & SNF Back Office	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	93 contacts →
	Indirect evidence “Touch Support has spent almost 20 years removing and preventing headaches for our clients and giving them peace of mind.” Source: RevenueBase Database · checked Sep 27, 2026
6	Comtek International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	88 contacts →
	Indirect evidence “Comtek International, Inc.” Source: RevenueBase Database · checked Sep 27, 2026
7	Benda Infotech	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	66 contacts →
	Partial evidence “We help businesses achieve more with innovative IT solutions.” Source: RevenueBase Database · checked Sep 27, 2026
8	Webmatrix	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	55 contacts →
	Indirect evidence “WebMatrix is an offshore development organization that designs and develops software applications, offering services spanning the entire software development life cycle.” Source: RevenueBase Database · checked Sep 27, 2026
9	Assivo	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	51 contacts →
	Indirect evidence “Your Quiet Advantage” Source: RevenueBase Database · checked Sep 27, 2026
10	Globalcybers	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	47 contacts →
	Partial evidence “From Talent to Automation, We Power Business Growth & Global Team Expansion We are a non-IT staffing partner helping companies hire and scale their teams efficiently, with…” Source: RevenueBase Database · checked Sep 27, 2026
11	Simetrica Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	40 contacts →
	Indirect evidence “Simetrica Consulting is a computer software company based out of Ave.” Source: RevenueBase Database · checked Sep 27, 2026
12	Proxima	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	35 contacts →
	Indirect evidence “Proxima offers Operations as a Service for the Insurance industry through a unique service model that combines nearshore highly qualified talent for Customer Service, Back-office…” Source: RevenueBase Database · checked Sep 27, 2026
13	Techalpha Global Innovations	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	27 contacts →
	Indirect evidence “TechAlpha Global Innovations headquartered in New York,USA having presence in UK, India, Australia.” Source: RevenueBase Database · checked Sep 27, 2026
14	Solai & Cameron Technologies	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	501-1,000	23 contacts →
	Partial evidence “Solai & Cameron (S&C) identifies emerging IT trends, conducts vital research and development for new technologies, and fosters the best entrepreneurial talent to support future…” Source: RevenueBase Database · checked Sep 27, 2026
15	Vbridge Global LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	23 contacts →
	Partial evidence “VBridgeGlobal LLC is a niche IT Services and Consulting organization in Illinois.” Source: RevenueBase Database · checked Sep 27, 2026
16	Friendly Solutions Corp	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	17 contacts →
	Indirect evidence “We are an information technology consulting firm, dedicated to providing comprehensive technology solutions for specific business needs.” Source: RevenueBase Database · checked Sep 27, 2026
17	Sidago Integrated Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	13 contacts →
	Partial evidence “Sidago Integrated Solutions is a full service outsourcing consultation business that provides small to large sized business solutions.” Source: RevenueBase Database · checked Sep 27, 2026
18	Nova Libra, INC	Indirect evidence	Chicago, United StatesHQ checked Sep 27, 2026	1-10	11 contacts →
	Indirect evidence “Nova Libra specializes in the maintenance and distribution of product information.” Source: RevenueBase Database · checked Sep 27, 2026
19	Kreativa-Inc	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	10 contacts →
	Indirect evidence “Kreativa is a full-service digital marketing and nearshore staffing agency helping Fortune 500 brands and growth-stage companies scale smarter.” Source: RevenueBase Database · checked Sep 27, 2026
20	Layer 7 Systems	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	10 contacts →
	Partial evidence “We want to be your IT Department!” Source: RevenueBase Database · checked Sep 27, 2026
21	Accellancy	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Partial evidence “IT Consulting, Business Process Management, Project Management, Engineering design and drafting, Staffing, and Job Placements” Source: RevenueBase Database · checked Sep 27, 2026
22	Vitaltech	Partial evidence	Chicago, United StatesHQ checked Sep 27, 2026	1-10	7 contacts →
	Partial evidence “vitaltech is Chicago’s leading provider of outsourced IT services, dedicated to delivering a genuine, human IT experience through a high-energy approach and adaptable products and…” Source: RevenueBase Database · checked Sep 27, 2026
23	Oscillas Technologies, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	5 contacts →
	Indirect evidence “At Oscillas, we work closely with our clients to understand their business processes so that we can effectively and efficiently apply unique and industry-leading technological…” Source: RevenueBase Database · checked Sep 27, 2026
24	Adivi Corporation	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	5 contacts →
	Indirect evidence “Everything in your business depends upon technology.” Source: RevenueBase Database · checked Sep 27, 2026
25	Onramp Networks	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	4 contacts →
	Indirect evidence “OnRamp Networks is a young and privately held company based in downtown Chicago.” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT outsourcing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names IT outsourcing services.
Partial evidence: Its own public description names part of IT outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT outsourcing services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 103 IT outsourcing services based in Chicago, United States

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

As of Sep 27, 2026

15.6%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 103 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 IT outsourcing services, 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 “IT outsourcing services”. 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 IT outsourcing services), 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 IT outsourcing services, 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, 327 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 27, 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.

IT outsourcing services 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 IT outsourcing services, 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 IT outsourcing services are there based in Chicago, United States?

RevenueBase identified 103 IT outsourcing services 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?

Q1 Technologies, INC, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most IT outsourcing services?

New York leads the United States with 258 headquartered companies, followed by Houston (179) and Dallas (172). Chicago has 103.

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 327 verified decision-maker contacts tracked across these 103 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 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 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.