Company lists · Data refreshed September 2026

Top 25 Operational technology consulting firms based in Chicago, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 151 companies tracked

RevenueBase identified 151 operational technology consulting firms headquartered in Chicago, United States as of September 2026 and tracks 4,265 professional contacts across them, including 2,335 with verified work emails. Across the United States, Houston is the largest hub for this category (279 companies); Chicago has 151.

This list covers operational technology consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review

151Companies

4,265Contacts tracked

2,335Verified emails

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The 25 largest operational technology consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 151 operational technology consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to operational technology consulting firms: 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	AHEAD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,989 contacts →
	Indirect evidence “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Source: RevenueBase Database · checked Sep 29, 2026
2	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	217 contacts →
	Indirect evidence “Your World.” Source: RevenueBase Database · checked Sep 29, 2026
3	Aberdeen Advisors LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	85 contacts →
	Indirect evidence “Headquartered in Chicago, with satellite offices in India and Mexico, Aberdeen Advisors LLC is a boutique digital consultancy providing innovative products and services.” Source: RevenueBase Database · checked Sep 29, 2026
4	DTI Diversified Technology INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	62 contacts →
	Partial evidence “DTI is a 100% African American-owned IT consulting and network services firm with nearly 40 years of experience.” Source: RevenueBase Database · checked Sep 29, 2026
5	Bluerock	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	53 contacts →
	Partial 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 29, 2026
6	Liberty Advisor Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	48 contacts →
	Indirect evidence “Liberty Advisor Group is now a Resultant company, uniting senior-led strategic advisory with a 300+-person technical engine to turn complex business challenges into measurable…” Source: RevenueBase Database · checked Sep 29, 2026
7	Mars-Technominds, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	43 contacts →
	Strong 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 29, 2026
8	Ec-United	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Partial 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 29, 2026
9	US Software Professionals INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Partial evidence “USSP (US Software Professionals Inc) is a best in class IT consulting firm offering end to end service and implementation solutions to clients worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
10	Crosspeak Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	35 contacts →
	Indirect evidence “Let us help your business conquer the cloud.” Source: RevenueBase Database · checked Sep 29, 2026
11	Revel Labs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	31 contacts →
	Partial evidence “Revel Labs was founded from a legacy of leading Fortune 500 companies through technology fueled transformation, from ecommerce to cloud enablement to AI.” Source: RevenueBase Database · checked Sep 29, 2026
12	Pearl Consulting Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	22 contacts →
	Strong 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 29, 2026
13	Zivra, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	19 contacts →
	Partial evidence “Zivra is a boutique IT professional services firm founded by highly-experienced IT consulting executives.” Source: RevenueBase Database · checked Sep 29, 2026
14	Mdrn Tech	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “At MDRN Tech, we dare to dream big, push boundaries and deliver a more modern way.” Source: RevenueBase Database · checked Sep 29, 2026
15	Burger Consulting Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	16 contacts →
	Partial evidence “Focused on IT Strategy and Business Performance BCG provides unparalleled customer service and personalized strategic consulting for our clients.” Source: RevenueBase Database · checked Sep 29, 2026
16	Partnersolve LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	14 contacts →
	Strong evidence “PartnerSolve LLC, founded in 2001, is a management consulting firm focused on accelerating performance within their clients with an emphasis on front and back-office operations.” Source: RevenueBase Database · checked Sep 29, 2026
17	Sagin, LLC	Indirect evidence	Chicago, United StatesHQ checked Sep 29, 2026	51-200	13 contacts →
	Indirect evidence “We help companies grow, change and create measurable results.” Source: RevenueBase Database · checked Sep 29, 2026
18	Fission Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Fission Consulting, headquartered in Chicago, helps private equity clients use IT to maximize the return from their portfolio companies.” Source: RevenueBase Database · checked Sep 29, 2026
19	Rise Technology Advisors	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	8 contacts →
	Partial evidence “We shepherd businesses into the next generation of technology.” Source: RevenueBase Database · checked Sep 29, 2026
20	RAO Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 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 29, 2026
21	JMA Consulting LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” Source: RevenueBase Database · checked Sep 29, 2026
22	Treasury Advisors Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “With decades of experience in consulting, TAG has developed a wide range of capabilities to support your needs.” Source: RevenueBase Database · checked Sep 29, 2026
23	Heliox Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “The Heliox Group is an IT consultancy with the mission to provide our customers with the highest level of service and expertise with regard to their technological needs.” Source: RevenueBase Database · checked Sep 29, 2026
24	Digital Primates	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “Recognized as experts who work at the forefront of new technologies, Digital Primates brings a unique approach to our client engagements.” Source: RevenueBase Database · checked Sep 29, 2026
25	Archer NSG	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “Archer’s consulting teams work closely with law firm and fortune 500 COOs, CIOs and practice managers to design practical, effective processes and support solutions that provide…” Source: RevenueBase Database · checked Sep 29, 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: operational technology consulting firms. 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 operational technology consulting firms.
Partial evidence: Its own public description names part of operational technology consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology consulting firms. 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 151 operational technology consulting firms based in Chicago, United States

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Operational technology consulting firms based in Chicago, United States at a glance

As of Sep 29, 2026

54.7%Verified-email coverage

28.2Average contacts per company

1-10Median size (employees)

Sep 29, 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 151 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 operational technology consulting firms, 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 “operational technology consulting firms”. 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 operational technology consulting firms), 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 operational technology consulting firms, 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, 2,335 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 29, 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.

Operational technology consulting firms 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 operational technology consulting firms, 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 operational technology consulting firms are there based in Chicago, United States?

RevenueBase identified 151 operational technology consulting firms 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?

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

Which city in the United States has the most operational technology consulting firms?

Houston leads the United States with 279 headquartered companies, followed by New York (266) and Chicago (151).

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 2,335 verified decision-maker contacts tracked across these 151 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 29, 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.