Company lists · Data refreshed September 2026

Top 25 Prompt engineering staffing companies based in the United States

Name: Prompt engineering staffing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,479 companies tracked

RevenueBase identified 1,479 prompt engineering staffing companies headquartered in the United States as of September 2026 and tracks 43,581 professional contacts across them, including 7,934 with verified work emails. Houston is the largest hub.

This list covers prompt engineering 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 29, 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 29, 2026 86% judged on-target in blind review

1,479Companies

43,581Contacts tracked

7,934Verified emails

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The 25 largest prompt engineering staffing companies based in the United States

Ranked by team size

Top 25 of 1,479 prompt engineering staffing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to prompt engineering staffing companies: 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	Tradesmen International	Indirect evidence	Macedonia, OH, United StatesHQ checked Sep 29, 2026	10001+	4,999 contacts →
	Indirect evidence “Founded in 1992, Tradesmen International is North America’s premier resource for proven skilled craftsmen and labor consulting services.” Source: RevenueBase Database · checked Sep 29, 2026
2	24 Seven Talent	Indirect evidence	NY, United StatesHQ checked Sep 29, 2026	n/a	2,554 contacts →
	Indirect evidence “24 Seven partners with companies to get marketing, creative, and digital work done by providing the right talent, innovation, and insights.” Source: RevenueBase Database · checked Sep 29, 2026
3	Airswift	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	2,128 contacts →
	Partial evidence “We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.” Source: RevenueBase Database · checked Sep 29, 2026
4	Spectraforce	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,845 contacts →
	Partial evidence “Founded in 2004, SPECTRAFORCE® is a global staffing and workforce solutions company that helps organizations build high-performing teams across healthcare, technology, financial…” Source: RevenueBase Database · checked Sep 29, 2026
5	Addison Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,840 contacts →
	Indirect evidence “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: RevenueBase Database · checked Sep 29, 2026
6	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 29, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 29, 2026
7	TRS Staffing Solutions	Strong evidence	Greenville, United StatesHQ checked Sep 29, 2026	201-500	1,187 contacts →
	Strong evidence “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Source: RevenueBase Database · checked Sep 29, 2026
8	Varite INC	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	711 contacts →
	Indirect evidence “VARITE has a definite spirit.” Source: RevenueBase Database · checked Sep 29, 2026
9	Volt Technical Resources	Indirect evidence	Orange, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	584 contacts →
	Indirect evidence “A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…” Source: RevenueBase Database · checked Sep 29, 2026
10	EASI	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	526 contacts →
	Indirect evidence “EASi is now Actalent.” Source: RevenueBase Database · checked Sep 29, 2026
11	Entegee	Partial evidence	Burlington, MA, United StatesHQ checked Sep 29, 2026	201-500	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 29, 2026
12	Bartech Staffing	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 29, 2026	1,001-5,000	447 contacts →
	Indirect evidence “Trusted for Talent.” Source: RevenueBase Database · checked Sep 29, 2026
13	Micro Tech Staffing Group	Partial evidence	Stoughton, MA, United StatesHQ checked Sep 29, 2026	201-500	409 contacts →
	Partial evidence “Micro Tech Staffing Group is your source for Technical & Professional talent in New England and the Eastern Seaboard.” Source: RevenueBase Database · checked Sep 29, 2026
14	Sterling Engineering	Strong evidence	Westchester, IL, United StatesHQ checked Sep 29, 2026	501-1,000	402 contacts →
	Strong evidence “Sterling is an award-winning professional engineering consulting and technical staffing company.” Source: RevenueBase Database · checked Sep 29, 2026
15	Factored	Partial evidence	Mountain View, CA, United StatesHQ checked Sep 29, 2026	201-500	370 contacts →
	Partial evidence “Factored (backed by Andrew Ng's AI Fund and deeplearning.ai) helps leading tech companies select, upskill, and build world-class data science, machine learning and AI engineering…” Source: RevenueBase Database · checked Sep 29, 2026
16	Vyze INC	Partial evidence	Aldie, VA, United StatesHQ checked Sep 29, 2026	51-200	356 contacts →
	Partial evidence “Vyze Inc is a leading IT staffing company that helps small and big organizations acquire, engage and retain the right talents, when and how you need them, such as contract-hire…” Source: RevenueBase Database · checked Sep 29, 2026
17	United Software Group INC	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 29, 2026	1,001-5,000	318 contacts →
	Indirect evidence “Welcome to USG - Pioneering Global IT Solutions and Workforce Management Excellence Since our inception in 2002, USG has grown into a global powerhouse, distinguished for its…” Source: RevenueBase Database · checked Sep 29, 2026
18	Ktek Resourcing	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	312 contacts →
	Strong evidence “Ktek Resourcing is a global staffing and recruitment firm specializing in IT, engineering, and professional services.” Source: RevenueBase Database · checked Sep 29, 2026
19	Itech Solutions	Partial evidence	Farmington, CT, United StatesHQ checked Sep 29, 2026	51-200	302 contacts →
	Partial evidence “iTech is a national IT staffing and recruiting firm.” Source: RevenueBase Database · checked Sep 29, 2026
20	Crystal Equation Corporation	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	262 contacts →
	Indirect evidence “Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.” Source: RevenueBase Database · checked Sep 29, 2026
21	Progressive	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	262 contacts →
	Partial evidence “Progressive is a global staffing company connecting STEM talent with leading companies in the Power and Utilities, Renewable Energy, Oil and Gas, and Manufacturing industries.” Source: RevenueBase Database · checked Sep 29, 2026
22	Global Edge Group	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 29, 2026	51-200	256 contacts →
	Indirect evidence “Global Edge Group is a full-service workforce solutions firm specializing in the recruitment of technical and project personnel for industries such as Oil and Gas, Power…” Source: RevenueBase Database · checked Sep 29, 2026
23	CTS Complete Technical Services	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	250 contacts →
	Indirect evidence “CTS - Complete Technical Services, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
24	G2i INC	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	201-500	246 contacts →
	Partial evidence “G2I is an AI engineering company that helps the world's leading frontier labs, enterprises, and high-growth startups hire, train, and ship AI systems.” Source: RevenueBase Database · checked Sep 29, 2026
25	Onward Search	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 29, 2026	51-200	240 contacts →
	Indirect evidence “Onward Search provides innovative solutions and expert talent to help marketing, creative and technology teams thrive in the future of work.” Source: RevenueBase Database · checked Sep 29, 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: prompt engineering 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 prompt engineering staffing companies.
Partial evidence: Its own public description names part of prompt engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prompt engineering 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 1,479 prompt engineering staffing companies based in the United States

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Prompt engineering staffing companies based in the United States at a glance

As of Sep 29, 2026

18.2%Verified-email coverage

29.5Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

623

11-50

459

51-200

273

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,479 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 prompt engineering 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 “prompt engineering 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 prompt engineering 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 prompt engineering 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, 7,934 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 29, 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.

Prompt engineering staffing companies by metro

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 prompt engineering 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 prompt engineering staffing companies are there based in the United States?

RevenueBase identified 1,479 prompt engineering 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?

Tradesmen International, headquartered in Macedonia, tops this list with the largest team on record.

Which city has the most prompt engineering staffing companies?

Houston leads with 55 headquartered companies, followed by New York (54) and Austin (37).

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 7,934 verified decision-maker contacts tracked across these 1,479 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 29, 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.