Company lists · Data refreshed November 2026

Top 19 Group technology services based in Chicago, United States

Name: Group technology services based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 345 companies tracked

RevenueBase identified 345 company matches for group technology services associated with Chicago, United States as of November 2026 and tracks 19,463 professional contacts across them, including 8,104 with verified work emails. Across the United States, New York is the largest hub for this category (709 companies); Chicago has 345.

This list covers company matches for group technology services 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 November 6, 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 Nov 6, 2026 How this list was built

345Companies

19,463Contacts tracked

8,104Verified emails

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The 19 largest group technology services based in Chicago, United States

Ranked by team size

Top 19 of 345 company matches for group technology services based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Ascend Technologies	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	360 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 · Nov 6, 2026 · View company records in RevenueBase
2	Celsior	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	286 contacts →
	Exact match “Celsior provides innovative, outcome-based technology solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Glotel, INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	239 contacts →
	Exact match “Founded in 1989, Glotel opened its doors as a telecom staffing provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Krasan Consulting Services	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	216 contacts →
	Exact match “Krasan Consulting Services is a Chicago-based boutique management consulting and technology solutions integrator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	RL Canning	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	215 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 · Nov 6, 2026 · View company records in RevenueBase
6	Comtek International	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	167 contacts →
	Exact match “Comtek International, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	RKON	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	164 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 · Nov 6, 2026 · View company records in RevenueBase
8	Maven Wave, An Eviden Company	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	501-1,000	163 contacts →
	Exact match “As of April 2023, Maven Wave is now part of Eviden, at Atos business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Productive Edge	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	111 contacts →
	Exact match “Productive Edge is a digital business consulting and technology solutions company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Solstice	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	201-500	97 contacts →
	Exact match “Solstice, part of Kin + Carta, is a modern software engineering firm that helps Fortune 500 companies seize new opportunities through world-changing digital solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Aberdeen Advisors LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	95 contacts →
	Exact match “Headquartered in Chicago, with satellite offices in India and Mexico, Aberdeen Advisors LLC is a boutique digital consultancy providing innovative products and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Radicle INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	84 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	DTI Diversified Technology INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	78 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 · Nov 6, 2026 · View company records in RevenueBase
14	Benda Infotech	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	60 contacts →
	Exact match “We help businesses achieve more with innovative IT solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Adifice Technologies	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	59 contacts →
	Exact match “Adifice Technologies is an IT development, services and products firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Logicon, LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	56 contacts →
	Exact match “At Logicon, we help businesses streamline operations, reduce manual work, and make technology effortless.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	OLSYS	Exact match	Chicago, United StatesHQ recorded Nov 6, 2026	51-200	47 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 · Nov 6, 2026 · View company records in RevenueBase
18	Mars-Technominds, INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	45 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 · Nov 6, 2026 · View company records in RevenueBase
19	Simetrica Consulting	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “Simetrica Consulting is a computer software company based out of Ave.” Recorded in the RevenueBase company graph · Nov 6, 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 “group technology services”. 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 19 of 345 group technology services based in Chicago, United States

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Group technology services based in Chicago, United States at a glance

As of Nov 6, 2026

41.6%Verified-email coverage

56.4Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

139

11-50

125

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 345 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 “group technology services” 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 8,104 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 November 6, 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.

Group technology services 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 “group technology services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many group technology services are there based in Chicago, United States?

RevenueBase identified 345 company matches for group technology services associated with Chicago, United States as of November 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?

Ascend Technologies 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 group technology services?

New York leads the United States with 709 company records, followed by Houston (475) and Dallas (395). Chicago has 345.

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 8,104 professional contacts with verified work emails tracked across these 345 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 November 6, 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.