Company lists · Data refreshed September 2026

Top 25 Application modernization consulting firms based in Chicago, United States

Name: Application modernization 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 21, 2026 150 companies tracked

RevenueBase identified 150 application modernization consulting firms headquartered in Chicago, United States as of September 2026 and tracks 6,263 professional contacts across them, including 3,342 with verified work emails. New York is the largest hub.

This list covers application modernization 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 21, 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 21, 2026 86% judged on-target in blind review

150Companies

6,263Contacts tracked

3,342Verified emails

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The 25 largest application modernization consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 150 application modernization consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to application modernization 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	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,989 contacts →
	Partial evidence “AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.” Source: RevenueBase Database · checked Sep 21, 2026
2	Beyond KEY	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
3	Redmane Technology LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	329 contacts →
	Indirect evidence “RedMane is a software solutions and systems integration firm that helps health and human services organizations address their most complex challenges.” Source: RevenueBase Database · checked Sep 21, 2026
4	Q1 Technologies, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	262 contacts →
	Indirect 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 21, 2026
5	PTS Consulting Services Global	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	251 contacts →
	Partial evidence “Overview PTS Consulting Services (People Technology Services), is a firm that specializes in providing IT consulting and Business consulting services.” Source: RevenueBase Database · checked Sep 21, 2026
6	Krasan Consulting Services	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	172 contacts →
	Partial evidence “Krasan Consulting Services is a Chicago-based boutique management consulting and technology solutions integrator.” Source: RevenueBase Database · checked Sep 21, 2026
7	RKON	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	163 contacts →
	Indirect 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 21, 2026
8	Radicle INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
9	Aberdeen Advisors LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
10	Soliant Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	76 contacts →
	Indirect evidence “At Soliant, we build custom software solutions that break down growth barriers and open doors to new opportunities.” Source: RevenueBase Database · checked Sep 21, 2026
11	Logicon, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	56 contacts →
	Indirect evidence “At Logicon, we help businesses streamline operations, reduce manual work, and make technology effortless.” Source: RevenueBase Database · checked Sep 21, 2026
12	Bluerock	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
13	Mars-Technominds, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
14	Simetrica Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	40 contacts →
	Partial evidence “Simetrica Consulting is a computer software company based out of Ave.” Source: RevenueBase Database · checked Sep 21, 2026
15	Echelon Consulting, L.L.C	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	37 contacts →
	Partial evidence “Echelon Consulting, LLC.” Source: RevenueBase Database · checked Sep 21, 2026
16	Ec-United	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
17	Billionapps	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	36 contacts →
	Indirect evidence “Billion is not a number, It's a landmark!” Source: RevenueBase Database · checked Sep 21, 2026
18	US Software Professionals INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
19	Alpha Efficiency	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	35 contacts →
	Indirect evidence “Alpha Efficiency engages in research and development of high leverage software solutions for business purposes.” Source: RevenueBase Database · checked Sep 21, 2026
20	Revel Labs	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 2026
21	Quant16	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	30 contacts →
	Indirect evidence “Quant16 is a Financial Performance Intelligence company.” Source: RevenueBase Database · checked Sep 21, 2026
22	Origin	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	28 contacts →
	Partial evidence “Origin is a new age consulting company born in the AI era that operates at the intersection of data analytics, AI and automation.” Source: RevenueBase Database · checked Sep 21, 2026
23	Vbridge Global LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	23 contacts →
	Partial evidence “VBridgeGlobal LLC is a niche IT Services and Consulting organization in Illinois.” Source: RevenueBase Database · checked Sep 21, 2026
24	Pearl Consulting Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial 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 21, 2026
25	K-Plus Technology Solutions	Strong evidence	Chicago, IL, United StatesHQ checked Sep 21, 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 21, 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: application modernization 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 application modernization consulting firms.
Partial evidence: Its own public description names part of application modernization consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application modernization 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 150 application modernization consulting firms based in Chicago, United States

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Application modernization consulting firms based in Chicago, United States at a glance

As of Sep 21, 2026

53.4%Verified-email coverage

41.8Average contacts per company

11-50Median size (employees)

166.7%Largest-city concentration · New York

Sep 21, 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 150 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 application modernization 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 “application modernization 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 application modernization 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 application modernization 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, 3,342 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 21, 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.

Application modernization 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 application modernization 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 application modernization consulting firms are there based in Chicago, United States?

RevenueBase identified 150 application modernization 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 has the most application modernization consulting firms?

New York leads with 250 headquartered companies, followed by Houston (187) and Austin (176).

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 3,342 verified decision-maker contacts tracked across these 150 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 21, 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.