Company lists · Data refreshed September 2026

Top 25 Freelancer IT consulting firms based in Chicago, United States

Name: Freelancer IT 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 30, 2026 213 companies tracked

RevenueBase identified 213 freelancer IT consulting firms headquartered in Chicago, United States as of September 2026 and tracks 7,073 professional contacts across them, including 2,916 with verified work emails. Across the United States, New York is the largest hub for this category (399 companies); Chicago has 213.

This list covers freelancer IT 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 30, 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 30, 2026 86% judged on-target in blind review

213Companies

7,073Contacts tracked

2,916Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest freelancer IT consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 213 freelancer IT consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to freelancer IT 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	West Monroe	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,129 contacts →
	Partial evidence “West Monroe is a global business and technology consulting firm passionate about creating value for our clients.” Source: RevenueBase Database · checked Sep 30, 2026
2	Navigant	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	5,001-10,000	1,029 contacts →
	Partial evidence “Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Source: RevenueBase Database · checked Sep 30, 2026
3	Business Talent Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	516 contacts →
	Indirect evidence “Business Talent Group (BTG), a Heidrick & Struggles company, connects leading companies with independent management consultants, subject matter experts, and executives to solve…” Source: RevenueBase Database · checked Sep 30, 2026
4	Weaver Consultants Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	201-500	382 contacts →
	Indirect evidence “From its inception in 1991, Weaver Consultants Group has been founded upon the tenets of attentive and responsive customer service, strong project management, and solid internal…” Source: RevenueBase Database · checked Sep 30, 2026
5	Beyond KEY	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	201-500	363 contacts →
	Indirect evidence “Our Journey of Growth, Trust, and Purpose Two decades ago, Beyond Key started with a vision not just to solve business problems with technology, but to create lasting impact.” Source: RevenueBase Database · checked Sep 30, 2026
6	Q1 Technologies, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	262 contacts →
	Partial evidence “Q1 Technologies is a global IT solutions and services provider focused on delivering innovative, scalable, and high-impact technology outcomes for enterprises worldwide.” Source: RevenueBase Database · checked Sep 30, 2026
7	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	501-1,000	217 contacts →
	Indirect evidence “Your World.” Source: RevenueBase Database · checked Sep 30, 2026
8	RKON	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
9	Diamond Management & Technology Consultants	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	501-1,000	114 contacts →
	Partial evidence “Diamond is a management and technology consulting firm.” Source: RevenueBase Database · checked Sep 30, 2026
10	W. Capra	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	108 contacts →
	Indirect evidence “W.” Source: RevenueBase Database · checked Sep 30, 2026
11	Aberdeen Advisors LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
12	DTI Diversified Technology INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	62 contacts →
	Strong 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 30, 2026
13	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
14	Liberty Advisor Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
15	Mars-Technominds, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	43 contacts →
	Partial 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 30, 2026
16	Echelon Consulting, L.L.C	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	37 contacts →
	Partial evidence “Echelon Consulting, LLC.” Source: RevenueBase Database · checked Sep 30, 2026
17	Ec-United	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	36 contacts →
	Strong 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 30, 2026
18	US Software Professionals INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	36 contacts →
	Strong 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 30, 2026
19	Revel Labs	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	31 contacts →
	Indirect 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 30, 2026
20	CTS Impact	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	29 contacts →
	Strong evidence “CTS Impact is a hands-on business consulting firm focused on delivering practical solutions to complex business issues in the areas of Finance, IT and Human Resources.” Source: RevenueBase Database · checked Sep 30, 2026
21	Vbridge Global LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	23 contacts →
	Strong evidence “VBridgeGlobal LLC is a niche IT Services and Consulting organization in Illinois.” Source: RevenueBase Database · checked Sep 30, 2026
22	Pearl Consulting Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 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 30, 2026
23	K-Plus Technology Solutions	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	21 contacts →
	Strong evidence “K+ Technology Solutions delivers IT consulting and recruitment services revolving around Application Development, Messaging, and Infrastructure solutions.” Source: RevenueBase Database · checked Sep 30, 2026
24	Zivra, LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	19 contacts →
	Strong evidence “Zivra is a boutique IT professional services firm founded by highly-experienced IT consulting executives.” Source: RevenueBase Database · checked Sep 30, 2026
25	Friendly Solutions Corp	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	11-50	17 contacts →
	Partial evidence “We are an information technology consulting firm, dedicated to providing comprehensive technology solutions for specific business needs.” Source: RevenueBase Database · checked Sep 30, 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: freelancer IT 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 freelancer IT consulting firms.
Partial evidence: Its own public description names part of freelancer IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name freelancer IT 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 213 freelancer IT consulting firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,916 reachable decision-makers.

Free signup · no credit card

View the full list →

Freelancer IT consulting firms based in Chicago, United States at a glance

As of Sep 30, 2026

41.2%Verified-email coverage

33.2Average contacts per company

11-50Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

106

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 213 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 freelancer IT 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 “freelancer IT 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 freelancer IT 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 freelancer IT 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, 2,916 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 30, 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.

Freelancer IT 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 freelancer IT 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 freelancer IT consulting firms are there based in Chicago, United States?

RevenueBase identified 213 freelancer IT 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?

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

Which city in the United States has the most freelancer IT consulting firms?

New York leads the United States with 399 headquartered companies, followed by Atlanta (227) and Houston (221). Chicago has 213.

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 2,916 verified decision-maker contacts tracked across these 213 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 30, 2026.

Ready to reach these companies? Verified emails and direct dials for all 213 freelancer IT consulting firms based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

Freelancer IT consulting firms by geography

Browse the directory

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.