Company lists · Data refreshed October 2026

Top 25 Managed service providers based in Chicago, United States

Name: Managed service providers based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 132 companies tracked

RevenueBase identified 132 company matches for managed service providers associated with Chicago, United States as of October 2026 and tracks 1,559 professional contacts across them, including 635 with verified work emails. Across the United States, New York is the largest hub for this category (292 companies); Chicago has 132.

This list covers company matches for managed service providers 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 October 1, 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 Oct 1, 2026 How this list was built

132Companies

1,559Contacts tracked

635Verified emails

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The 25 largest managed service providers based in Chicago, United States

Ranked by team size

Top 25 of 132 company matches for managed service providers based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
2	Access ONE INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
3	CHI Networks	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	51-200	111 contacts →
	Exact match “Chicago-based Chi Networks is a cutting edge Managed Service Provider serving a global base from data centers located in three time zones.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Empist	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	51-200	89 contacts →
	Exact match “At EMPIST, our mission is to fuel businesses with the technology they need to succeed.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Crossrealms International	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	51-200	88 contacts →
	Exact match “CrossRealms International is a Cybersecurity-First company operating across the United States, Europe, MENA region, and Asia.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Lyra Technology Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1,001-5,000	71 contacts →
	Exact match “Lyra Technology Group is a family of IT services businesses serving small and medium-sized organizations.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	Entara	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	51-200	69 contacts →
	Exact match “Experiencing a security incident?” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	YJT Solutions	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	58 contacts →
	Exact match “As of September 2018, YJT Solutions has rebranded and is now known as entara!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Framework IT	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	41 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 · Oct 1, 2026 · View company records in RevenueBase
10	MIS Computer MSP	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	40 contacts →
	Exact match “MIS Computer: More Than An MSP.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Smart Technology Services, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	32 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 · Oct 1, 2026 · View company records in RevenueBase
12	Inhousecio, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	21 contacts →
	Exact match “Many businesses deal with Computer and IT headaches because their IT is getting more complex.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Guavatech, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	19 contacts →
	Exact match “Who We Are: GuavaTech, Inc.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Agility Network Services, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	19 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	I.Q. Technologies, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	17 contacts →
	Exact match “Just like people, every business is unique in its own specific way.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	CSC Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	17 contacts →
	Exact match “CSC Consulting Group (CSC) is an experienced IT services company offering a full range of IT services including high-level assessments, network infrastructure design and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	Mdrn Tech	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	16 contacts →
	Exact match “At MDRN Tech, we dare to dream big, push boundaries and deliver a more modern way.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	Computing Technology Solutions	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	15 contacts →
	Exact match “CTS is your Technology Management Partner when it comes to managing all the computing needs of your business!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Nectel Technologies, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	n/a	14 contacts →
	Exact match “One of the top IT companies in Chicago.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	IT Risk Managers LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	13 contacts →
	Exact match “IT Risk Managers LLC provides proactive Chicago IT support to insure systems are available and ready to meet the needs of today's businesses 24/7.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Protek-It	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	10 contacts →
	Exact match “INTELLIGENTLY TAILORED IT.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Firelogic	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	10 contacts →
	Exact match “FireLogic is your complete Managed IT Services provider that specializes in technology support, consulting, training, and deployment for commercial, nonprofit, and education…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	Layer 7 Systems	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	11-50	10 contacts →
	Exact match “We want to be your IT Department!” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Birds On A Cable	Exact match	Chicago, IL, United StatesHQ recorded Oct 1, 2026	1-10	9 contacts →
	Exact match “Birds on a Cable is a Chicago based Information Technology company.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Cyber Bark LLC	Exact match	Chicago, United StatesHQ recorded Oct 1, 2026	51-200	7 contacts →
	Exact match “At Cyber Bark, we bring 100 years of collective experience to the table, serving businesses across the US from our base in Illinois.” Recorded in the RevenueBase company graph · Oct 1, 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 “managed service providers”. 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 132 managed service providers based in Chicago, United States

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Managed service providers based in Chicago, United States at a glance

As of Oct 1, 2026

40.7%Verified-email coverage

11.8Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 132 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 “managed service providers” 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 635 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 October 1, 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.

Managed service providers 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 “managed service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many managed service providers are there based in Chicago, United States?

RevenueBase identified 132 company matches for managed service providers associated with Chicago, United States as of October 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 managed service providers?

New York leads the United States with 292 company records, followed by Houston (202) and Chicago (132).

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 635 professional contacts with verified work emails tracked across these 132 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 October 1, 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.