Company lists · Data refreshed September 2026

Top 25 Enterprise systems review services based in Chicago, United States

Name: Enterprise systems review 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 28, 2026 68 companies tracked

RevenueBase identified 68 enterprise systems review services headquartered in Chicago, United States as of September 2026 and tracks 701 professional contacts across them, including 194 with verified work emails. Across the United States, New York is the largest hub for this category (94 companies); Chicago has 68.

This list covers enterprise systems review 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 28, 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 28, 2026 86% judged on-target in blind review

68Companies

701Contacts tracked

194Verified emails

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The 25 largest enterprise systems review services based in Chicago, United States

Ranked by team size

Top 25 of 68 enterprise systems review services based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise systems review 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	RKON	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	163 contacts →
	Partial evidence “Since 1998, RKON has delivered IT Transformation helping private equity and enterprise firms achieve Quiet IT from vision to execution.” Source: RevenueBase Database · checked Sep 28, 2026
2	Comtek International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	88 contacts →
	Indirect evidence “Comtek International, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
3	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	53 contacts →
	Indirect evidence “BlueROCK was founded on the premise that all companies should have a trusted partner for unbiased technology advice and guidance.” Source: RevenueBase Database · checked Sep 28, 2026
4	Mars-Technominds, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	43 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
5	Ec-United	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “EC-United is a boutique executive consulting firm adept at providing clients with executive services such as IT assessments, strategies, performance management, interim leaders…” Source: RevenueBase Database · checked Sep 28, 2026
6	Pearl Consulting Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Pearl Consulting Group is a global IT consulting firm dedicated to helping businesses navigate the complexities of technology with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
7	I.Q. Technologies, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Just like people, every business is unique in its own specific way.” Source: RevenueBase Database · checked Sep 28, 2026
8	RAO Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “RAO Solutions was formed to affect positive, qualitative and quantitative change within your organization.” Source: RevenueBase Database · checked Sep 28, 2026
9	JMA Consulting LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
10	Wired Authority	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	5 contacts →
	Indirect evidence “Wired Authority is an IT optimization partner that helps businesses understand their technology needs and implement effective solutions to increase company value.” Source: RevenueBase Database · checked Sep 28, 2026
11	Onramp Networks	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
12	Rooksdm	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “We have found that professional services businesses are great at what they do but stifle their growth because they are stuck in manual processes.” Source: RevenueBase Database · checked Sep 28, 2026
13	C.A.S.T	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “CAST is a consulting company looking to help construction companies take their business to the next level through the use of technology.” Source: RevenueBase Database · checked Sep 28, 2026
14	Topout Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “TopOut Group is a Chicago, Illinois based tech services consulting company.” Source: RevenueBase Database · checked Sep 28, 2026
15	HI Tech Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Hi Tech Consulting is an agency committed to helping entrepreneurs and small businesses optimize their time by optimizing and automating processes that increase their impact and…” Source: RevenueBase Database · checked Sep 28, 2026
16	Root Port IT Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Root Port IT Solutions is a small, agile and dedicated IT consulting company based in Chicago, IL.” Source: RevenueBase Database · checked Sep 28, 2026
17	Venturespoint Corp	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “VenturesPoint has been serving Business firms for over ten years.” Source: RevenueBase Database · checked Sep 28, 2026
18	Packetwise INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “PacketWise is a leading network consulting company that specializes in providing comprehensive solutions for businesses of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
19	Amerigo LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “AmeriGo is Chicago-based technology management consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
20	Emerje, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Emerje is a premier consulting firm specializing in software development, information technology, and audio/visual installation.” Source: RevenueBase Database · checked Sep 28, 2026
21	Optimization Advisers	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “After over a decade of analyzing & managing projects, leading programs and optimizing processes, continued patterns of inefficiency and opportunities for improvement were observed.” Source: RevenueBase Database · checked Sep 28, 2026
22	Huecker Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Huecker Consulting specializes in four core services: 1.” Source: RevenueBase Database · checked Sep 28, 2026
23	Kandəkə	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “kandəkə is a Small Business that is committed to providing Information Technology Products and Services.” Source: RevenueBase Database · checked Sep 28, 2026
24	Ken-Kor Consulting, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Ken-Kor is a technology consulting and implementation company that provides and implements complete Information Technology Solutions for small businesses.” Source: RevenueBase Database · checked Sep 28, 2026
25	SKY Birch Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Sky Birch Consulting provides a wide variety of IT consulting services to customers including on-premises and cloud infrastructure architecture and management, data migration…” Source: RevenueBase Database · checked Sep 28, 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: enterprise systems review 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 enterprise systems review services.
Partial evidence: Its own public description names part of enterprise systems review services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise systems review 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 68 enterprise systems review services based in Chicago, United States

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Enterprise systems review services based in Chicago, United States at a glance

As of Sep 28, 2026

27.7%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

Sep 28, 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 68 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 enterprise systems review 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 “enterprise systems review 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 enterprise systems review 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 enterprise systems review 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, 194 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 28, 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.

Enterprise systems review 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 enterprise systems review 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 enterprise systems review services are there based in Chicago, United States?

RevenueBase identified 68 enterprise systems review 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?

RKON, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most enterprise systems review services?

New York leads the United States with 94 headquartered companies, followed by Houston (85) and Atlanta (82). Chicago has 68.

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 194 verified decision-maker contacts tracked across these 68 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 28, 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.