Company lists · Data refreshed November 2026

Top 20 Systems infrastructure engineers based in Chicago, United States

Name: Systems infrastructure engineers 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 135 companies tracked

RevenueBase identified 135 company matches for systems infrastructure engineers associated with Chicago, United States as of November 2026 and tracks 2,791 professional contacts across them, including 803 with verified work emails. Across the United States, New York is the largest hub for this category (299 companies); Chicago has 135.

This list covers company matches for systems infrastructure engineers 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

135Companies

2,791Contacts tracked

803Verified emails

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The 20 largest systems infrastructure engineers based in Chicago, United States

Ranked by team size

Top 20 of 135 company matches for systems infrastructure engineers 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	Avant Communications	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	51-200	284 contacts →
	Exact match “As the nation’s premier distributor of next generation technologies, AVANT has the resources and relationships needed to successfully navigate the ever-changing world of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	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
3	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
4	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
5	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
6	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
7	US Software Professionals INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	35 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 · Nov 6, 2026 · View company records in RevenueBase
8	Micro-Tech USA	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	24 contacts →
	Exact match “Welcome to Micro-Tech U.S.A!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	I.Q. Technologies, INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	23 contacts →
	Exact match “Just like people, every business is unique in its own specific way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Vbridge Global LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	23 contacts →
	Exact match “VBridgeGlobal LLC is a niche IT Services and Consulting organization in Illinois.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Zivra, LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	22 contacts →
	Exact match “Zivra is a boutique IT professional services firm founded by highly-experienced IT consulting executives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Friendly Solutions Corp	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “We are an information technology consulting firm, dedicated to providing comprehensive technology solutions for specific business needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Data-Tel Communications, INC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Who we are: Data-Tel Communications is a full-service technology advisor that has been in operation for over 20 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Pearl Consulting Group	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Pearl Consulting Group is a global IT consulting firm dedicated to helping businesses navigate the complexities of technology with confidence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Level-1 Global Solutions, LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Level-1 Global Solutions is a certified M/DBE technology infrastructure firm that specializes in interoperable IT and mission-critical systems integration.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	IT Risk Managers LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
17	Birds On A Cable	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1-10	11 contacts →
	Exact match “Birds on a Cable is a Chicago based Information Technology company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Davis Powers	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “For over 20 years, Davis Powers has been a trusted technology solutions provider committed to making sure business owners have the most reliable and professional IT services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Layer 7 Systems	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “We want to be your IT Department!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	JMA Consulting LLC	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1-10	9 contacts →
	Exact match “JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” 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 “systems infrastructure engineers”. 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 20 of 135 systems infrastructure engineers based in Chicago, United States

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Systems infrastructure engineers based in Chicago, United States at a glance

As of Nov 6, 2026

28.8%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 135 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 “systems infrastructure engineers” 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 803 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.

Systems infrastructure engineers 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 “systems infrastructure engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems infrastructure engineers are there based in Chicago, United States?

RevenueBase identified 135 company matches for systems infrastructure engineers 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?

Avant Communications 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 systems infrastructure engineers?

New York leads the United States with 299 company records, followed by Houston (183) and Atlanta (142). Chicago has 135.

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 803 professional contacts with verified work emails tracked across these 135 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.