Company lists · Data refreshed September 2026

Top 25 Engineering recruiting firms based in Chicago, United States

Name: Engineering recruiting 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 87 companies tracked

RevenueBase identified 87 company matches for engineering recruiting firms associated with Chicago, United States as of September 2026 and tracks 4,313 professional contacts across them, including 1,648 with verified work emails. Across the United States, Houston is the largest hub for this category (183 companies); Chicago has 87.

This list covers company matches for engineering recruiting firms associated with Chicago, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

87Companies

4,313Contacts tracked

1,648Verified emails

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The 25 largest engineering recruiting firms based in Chicago, United States

Ranked by team size

Top 25 of 87 company matches for engineering recruiting firms based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Addison Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,840 contacts →
	Exact match “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Collins Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	432 contacts →
	Exact match “In 1979, Collins Engineers, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Connect Search, LLC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	310 contacts →
	Exact match “Connect Search, LLC is a boutique staffing firm founded by a group of partners who share the same vision and are all recruiters at heart.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Crystal Equation Corporation	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	262 contacts →
	Exact match “Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	ESD NOW Stantec Consulting Services	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	201-500	208 contacts →
	Exact match “A global company, ESD is a leader in Improving Society Through the Built Environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Hirewell	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	134 contacts →
	Exact match “Hirewell is a global talent solutions provider that combines domain expert recruiters with modern hiring strategy to deliver people who make a difference.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	KDM Engineering	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	114 contacts →
	Exact match “Founded upon a vision of challenging and changing the energy infrastructure to help light up the world, KDM specializes in engineering consulting and design, program and project…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Proficientnow, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	112 contacts →
	Exact match “Proficient Now Inc is a nationwide talent firm located in Lisle, IL.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Environmental Design International INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	68 contacts →
	Exact match “Clients can trust Environmental Design International inc.(EDI) to be responsive, demonstrate technical excellence, adhere to the demands of budgets and schedules, and offer…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Ciorba Group, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	66 contacts →
	Exact match “Ciorba Group has been providing professional engineering services to various state and local governmental agencies for over 95 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Engtal	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	55 contacts →
	Exact match “At Engtal, we specialize in connecting top-tier talent with leading organizations in engineering, construction, trading and finance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Diamond Peak Recruiting	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	43 contacts →
	Exact match “Diamond Peak Recruiting is a full service recruiting firm that specializes in the AEC and MEP industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	North Bridge Staffing Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	37 contacts →
	Exact match “North Bridge Staffing was established in 2002 by Gerrie and Pat Dugan, who believed there was a need to provide customized talent solutions to clients, associates, and candidates.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Mcguire Engineers	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	35 contacts →
	Exact match “Founded in 1986 in Chicago, McGuire Engineers, Inc.(MEPC) has been providing engineering services to clients worldwide for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Primary Staffing	Exact match	Chicago, United StatesHQ recorded Sep 28, 2026	51-200	29 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	M-Works Search	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	1-10	26 contacts →
	Exact match “At M-Works Search our goal is simple.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Wedevx	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “WEDEVX helps companies hire top engineering talent by sourcing and vetting them in AI simulated environments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Peer Technical Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “Peer Technical is a Veteran-owned strategic search and recruitment firm specializing in engineering talent.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Compucore Solutions INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “CompuCore is a leading staffing, recruitment and consulting firm focused on Information Technological and Non Information Technological industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Callan Consulting Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Our Team, Your Building - It’s a Perfect Fit At Callan Consulting Engineers, we provide professional engineering guidance from project inception to post-occupancy, including…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Chamberlain Advisors	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	51-200	20 contacts →
	Exact match “Chamberlain is a talent acquisition firm for organizations that seek human capital differentiation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Elcora Solutions	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “Elcora Engineering Solutions stands tall as a trailblazer in the energy sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Cullerton Group	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Cullerton Group is a staffing firm specialized in the placement of IT and Engineering candidates.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	APS Consulting INC	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Kappa Search Inc. KSI	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “At Kappa Search, we believe in the power of people.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “engineering recruiting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 87 engineering recruiting firms based in Chicago, United States

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Engineering recruiting firms based in Chicago, United States at a glance

As of Sep 28, 2026

38.2%Verified-email coverage

49.6Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 87 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Chicago, United States whose business descriptions match “engineering recruiting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,648 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Engineering recruiting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “engineering recruiting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering recruiting firms are there based in Chicago, United States?

RevenueBase identified 87 company matches for engineering recruiting firms associated with Chicago, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Addison Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most engineering recruiting firms?

Houston leads the United States with 183 company records, followed by New York (166) and Austin (100). Chicago has 87.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,648 professional contacts with verified work emails tracked across these 87 companies; direct dials are available where recorded.

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 SmartSearch, 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.