Company lists · Data refreshed September 2026

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

Name: Defense 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 28, 2026 92 companies tracked

RevenueBase identified 92 defense IT consulting firms headquartered in Chicago, United States as of September 2026 and tracks 1,149 professional contacts across them, including 470 with verified work emails. Across the United States, Washington is the largest hub for this category (282 companies); Chicago has 92.

This list covers defense 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 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

92Companies

1,149Contacts tracked

470Verified emails

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

Ranked by team size

Top 25 of 92 defense IT consulting firms 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 defense 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	Ascend Technologies	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	319 contacts →
	Indirect evidence “We're an award-winning Technology Solution Provider dedicated to safeguarding organizations across the United States.” Source: RevenueBase Database · checked Sep 28, 2026
2	Krasan Consulting Services	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
3	Crossrealms International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Indirect evidence “CrossRealms International is a Cybersecurity-First company operating across the United States, Europe, MENA region, and Asia.” Source: RevenueBase Database · checked Sep 28, 2026
4	Competitive Range	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	44 contacts →
	Strong evidence “Competitive Range is a Management Consulting and Technology Solutions consultancy that provides acquisition, program management, and IT engineering.” Source: RevenueBase Database · checked Sep 28, 2026
5	Mars-Technominds, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
6	NPO USA INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “We are NPO USA!” Source: RevenueBase Database · checked Sep 28, 2026
7	SLG Innovation, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
8	Vbridge Global LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Strong evidence “VBridgeGlobal LLC is a niche IT Services and Consulting organization in Illinois.” Source: RevenueBase Database · checked Sep 28, 2026
9	Pearl Consulting Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
10	Ravenswood Technology Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “At Ravenswood Technology Group, we don’t just offer our customers cybersecurity solutions – we deliver value and expertise you can rely on as needs and risks change.” Source: RevenueBase Database · checked Sep 28, 2026
11	Friendly Solutions Corp	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
12	Scalesology	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Scalesology is a data analytics, software development, and cybersecurity consulting company.” Source: RevenueBase Database · checked Sep 28, 2026
13	JAS Global Advisors LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “JAS Global Advisors is a unique professional services firm delivering risk management, technology, and governance solutions to a wide range of commercial and government clients.” Source: RevenueBase Database · checked Sep 28, 2026
14	Harrington Technology & Associates, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “HTA Technology Security Consulting (HTA) is a certified Woman-Owned, Small, Disadvantaged, Minority business with offices in Chicago, IL, and the Washington DC corridor.” Source: RevenueBase Database · checked Sep 28, 2026
15	Cyber Bark LLC	Indirect evidence	Chicago, United StatesHQ checked Sep 28, 2026	51-200	7 contacts →
	Indirect evidence “At Cyber Bark, we bring 100 years of collective experience to the table, serving businesses across the US from our base in Illinois.” Source: RevenueBase Database · checked Sep 28, 2026
16	JMA Consulting LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
17	Heliox Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 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 28, 2026
18	Hellfire Security	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Not auditors but real hackers.” Source: RevenueBase Database · checked Sep 28, 2026
19	Network Aegis	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Welcome to Network Aegis!” Source: RevenueBase Database · checked Sep 28, 2026
20	Braincloud Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence “BrainCloud Group is a trusted advisor to any enterprise looking to stay ahead of the rapid pace of innovation in communication, collaboration, automation and cybersecurity…” Source: RevenueBase Database · checked Sep 28, 2026
21	ESG	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “We operationalize, economize, and secure enterprise organizations by understanding their business outcomes and connecting them with proven, venture-backed startups recommended by…” Source: RevenueBase Database · checked Sep 28, 2026
22	Yayo Interactive	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Yayo Interactive is a technology and digital solutions firm helping organizations modernize systems, strengthen security, and improve business performance through scalable…” Source: RevenueBase Database · checked Sep 28, 2026
23	Teamwerks	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “TeamWerks is an IT company based in the United States.” Source: RevenueBase Database · checked Sep 28, 2026
24	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
25	Technoir Security Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “There's nothing like the peace of mind that comes from knowing someone has your back.” 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: defense 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 defense IT consulting firms.
Partial evidence: Its own public description names part of defense 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 defense 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 92 defense IT consulting firms based in Chicago, United States

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

As of Sep 28, 2026

40.9%Verified-email coverage

12.5Average contacts per company

11-50Median 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 92 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 defense 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 “defense 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 defense 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 defense 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, 470 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.

Defense 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 defense 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 defense IT consulting firms are there based in Chicago, United States?

RevenueBase identified 92 defense 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?

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

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

Washington leads the United States with 282 headquartered companies, followed by Reston (186) and New York (179). Chicago has 92.

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 470 verified decision-maker contacts tracked across these 92 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.