Company lists · Data refreshed October 2026

Top 25 Direct hire engineering firms based in Chicago, United States

Name: Direct hire engineering firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 83 companies tracked

RevenueBase identified 83 company matches for direct hire engineering firms associated with Chicago, United States as of October 2026 and tracks 2,482 professional contacts across them, including 1,044 with verified work emails. Across the United States, Houston is the largest hub for this category (225 companies); Chicago has 83.

This list covers company matches for direct hire engineering 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 October 11, 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 Oct 11, 2026 How this list was built

83Companies

2,482Contacts tracked

1,044Verified emails

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

The 25 largest direct hire engineering firms based in Chicago, United States

Ranked by team size

Top 25 of 83 company matches for direct hire engineering firms based in Chicago, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	Collins Engineers, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	201-500	424 contacts →
	Exact match “In 1979, Collins Engineers, Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Connect Search, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	346 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 · Oct 11, 2026 · View company records in RevenueBase
3	Crystal Equation Corporation	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	201-500	274 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 · Oct 11, 2026 · View company records in RevenueBase
4	Infrastructure Engineering INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	201-500	224 contacts →
	Exact match “Infrastructure Engineering Inc.(IEI) is a majority African American-owned, multi-disciplinary consulting firm with offices in eight states that delivers design engineering…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Proficientnow, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	116 contacts →
	Exact match “Proficient Now Inc is a nationwide talent firm located in Lisle, IL.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Ciorba Group, INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	74 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 · Oct 11, 2026 · View company records in RevenueBase
7	Environmental Design International INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	63 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 · Oct 11, 2026 · View company records in RevenueBase
8	2im Group, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	60 contacts →
	Exact match “2IM Group is now part of MacKay, a multi-disciplinary engineering firm serving clients across the western and central United States.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Rubinos & Mesia Engineers RME	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	55 contacts →
	Exact match “RUBINOS & MESIA ENGINEERS, INC.(RME), a MBE, was established in 1982 as a Chicago based Structural / Civil Engineering and Construction Management Firm.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Engtal	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	53 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 · Oct 11, 2026 · View company records in RevenueBase
11	Diamond Peak Recruiting	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	47 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 · Oct 11, 2026 · View company records in RevenueBase
12	Mcguire Engineers	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	36 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 · Oct 11, 2026 · View company records in RevenueBase
13	Lakeshore Engineering, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	1-10	27 contacts →
	Exact match “Led by a licensed civil engineer with over 30+ years of combined design and construction management experience.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Orion Engineers, Pllc	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	26 contacts →
	Exact match “Orion Engineers, PLLC is a civil, structural & construction engineering consulting firm based in the Midwest delivering planning, design, and construction management services to…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Peer Technical Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	26 contacts →
	Exact match “Peer Technical is a Veteran-owned strategic search and recruitment firm specializing in engineering talent.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	M-Works Search	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	1-10	25 contacts →
	Exact match “At M-Works Search our goal is simple.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Apex Consulting Engineers, LLC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	24 contacts →
	Exact match “APEX Consulting Engineers, LLC is a licensed professional engineering and design firm based in Illinois, specializing in civil infrastructure solutions for the Transportation…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Compucore Solutions INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	23 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 · Oct 11, 2026 · View company records in RevenueBase
19	Cullerton Group	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	21 contacts →
	Exact match “Cullerton Group is a staffing firm specialized in the placement of IT and Engineering candidates.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Pinpoint Precision Engineering	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	21 contacts →
	Exact match “Pinpoint Precision was founded on the principles of using innovation and young creative minds to produce a better product for clients and consumers.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	APS Consulting INC	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	16 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Clark Resources	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	1-10	16 contacts →
	Exact match “Clark Resources is a specialized Manufacturing Recruiting Firm dedicated to connecting top talent with leading companies across the nation.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	MEPIS	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	15 contacts →
	Exact match “MEPIS MEPIS is a full service Professional Architecture & Engineering design firm, with a diversified team of professionals who perform design services and design build.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	Knight E A, Inc. Member Of WSP	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	51-200	15 contacts →
	Exact match “Knight is a full-service engineering and architectural firm providing design, planning and management services to both public and private clients from our offices in Illinois and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	WH Talent Solutions	Exact match	Chicago, IL, United StatesHQ recorded Oct 11, 2026	11-50	14 contacts →
	Exact match “In your firm, it is your people who are the differentiators.” Recorded in the RevenueBase company graph · Oct 11, 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 “direct hire engineering 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 83 direct hire engineering firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and access 1,044 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Direct hire engineering firms based in Chicago, United States at a glance

As of Oct 11, 2026

42.1%Verified-email coverage

29.9Average contacts per company

1-10Median size (employees)

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 83 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 “direct hire engineering 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 1,044 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 October 11, 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.

Direct hire engineering 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 “direct hire engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 83 company matches for direct hire engineering firms associated with Chicago, United States as of October 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?

Collins Engineers, INC 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 direct hire engineering firms?

Houston leads the United States with 225 company records, followed by New York (151) and Dallas (101). Chicago has 83.

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 1,044 professional contacts with verified work emails tracked across these 83 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 October 11, 2026.

Ready to reach these companies? Verified emails and direct dials for all 83 direct hire engineering firms based in Chicago, United States. Start with a free account, no credit card.

Download this list →

Related lists

Direct hire engineering 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 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.