Company lists · Data refreshed September 2026
Top 25 Mechanical design engineers staffing companies based in the United States
RevenueBase identified 273 mechanical design engineers staffing companies headquartered in the United States as of September 2026 and tracks 4,613 professional contacts across them, including 1,125 with verified work emails. San Diego is the largest hub.
This list covers mechanical design engineers staffing companies headquartered in the 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.
The 25 largest mechanical design engineers staffing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 468 contacts → | ||||
Partial evidence “For the last sixty years Entegee has provided Fortune 500 and other companies with highly qualified engineering and technical personnel.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 468 contacts → | ||||
Indirect evidence “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 402 contacts → | ||||
Strong evidence “Sterling is an award-winning professional engineering consulting and technical staffing company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 322 contacts → | ||||
Strong evidence “Triple Crown delivers engineering, verification and design services that move the world forward, one precisely managed and expertly executed project at a time.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 141 contacts → | ||||
Partial evidence “For more than 18 years, Axiem International has provided the highest quality Engineering deliverables and professionals to the Energy, Aerospace, Automotive & Industrial…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 117 contacts → | ||||
Partial evidence “Ever collaborated with Recruiters who are degreed engineers?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 116 contacts → | ||||
Strong evidence “RPA Engineering is a professional engineering consulting firm offering mechanical, electrical, structural, and automations systems engineering discipline services, including…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 86 contacts → | ||||
Partial evidence “DAVRON is a highly specialized executive search and outplacement firm focused on recruiting engineering, architecture, construction, and manufacturing professionals for contract…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 83 contacts → | ||||
Partial evidence “Bentley Global Resources provides high-end critically skilled contractors specializing in Hardware and Software Product Engineering to clients in need of such specialized skills.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 74 contacts → | ||||
Indirect evidence “Databased Solutions has made the Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 59 contacts → | ||||
Strong evidence “Zoom is a national consultative staffing solutions provider with an emphasis in Hardware and Software Engineering.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 54 contacts → | ||||
Strong evidence “The DAPR team is comprised of a highly talented and versatile mechanical and electrical engineers and designers that have decades of experience spanning across many industries.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 50 contacts → | ||||
Strong evidence “Here at Imperial Staffing, we focus solely on providing unmatched quality of service and speed of placement for high-tech senior level engineering experts.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 46 contacts → | ||||
Strong evidence “As a Mechanical/Electrical Systems Design and Engineering firm in Dallas since 1945, we have been privileged to design a variety of projects, locally and nationwide.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 46 contacts → | ||||
Strong evidence “BrightSharks Engineering, founded in 2018, delivers innovative engineering and staffing solutions for the automotive, heavy machinery, agriculture, medical, and manufacturing…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 contacts → | ||||
Strong evidence “Technical-Link North America is dedicated to excellence in engineering staffing, connecting top talent with leading companies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 43 contacts → | ||||
Strong evidence “Sparx Engineering is a licensed engineering firm that provides contract engineering and product design services to companies from most every industry.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 37 contacts → | ||||
Strong evidence “For over two decades top tier engineering firms across the Southeast and nationally have turned to Selectek for solutions to their technical staffing needs; whether it is for…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Strong evidence “HEPCO is an engineering staffing organization dedicated to providing technical industries with either contract or permanent personnel services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 37 contacts → | ||||
Indirect evidence “At Key Technical, we believe that the right people are the most important asset to any company in realizing its goals and objectives.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Strong evidence “ProTech, a leader in technical and professional recruiting, payroll services for internship or retiree programs, and in house design services for your engineering needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Strong evidence “Patriot Technical Consulting specializes in the placement of contract and full-time Engineering and Design personnel.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Strong evidence “The Seifert Companies offer our customers expertise in these main areas: machine design and process automation; engineering services; IT services; and staffing services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Partial evidence “Taylor Technical Services is one of the largest and most respected suppliers of Engineering personnel in the Houston/Gulf Coast area and Alaska.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 29 contacts → | ||||
Partial evidence “Smith Monroe Gray Engineers, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: mechanical design engineers staffing companies. 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 mechanical design engineers staffing companies.
- Partial evidence
- Its own public description names part of mechanical design engineers staffing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name mechanical design engineers staffing companies. 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 273 mechanical design engineers staffing companies based in the United States
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Mechanical design engineers staffing companies based in the United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 273 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 mechanical design engineers staffing companies, 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 the United States whose own description of what they do matches “mechanical design engineers staffing companies”. 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 mechanical design engineers staffing companies), 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 mechanical design engineers staffing companies, and records with no verified work email. Companies headquartered outside United States 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, 1,125 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.
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 mechanical design engineers staffing companies, 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 mechanical design engineers staffing companies are there based in the United States?
RevenueBase identified 273 mechanical design engineers staffing companies headquartered in the 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?
Entegee, headquartered in Burlington, tops this list with the largest team on record.
Which city has the most mechanical design engineers staffing companies?
San Diego leads with 9 headquartered companies, followed by Austin (6) and Houston (6).
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 1,125 verified decision-maker contacts tracked across these 273 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.
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