Company lists · Data refreshed September 2026

Top 24 IT staffing and outsourcing companies based in Irvine, United States

Name: IT staffing and outsourcing companies based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 53 companies tracked

RevenueBase identified 53 IT staffing and outsourcing companies headquartered in Irvine, United States as of September 2026 and tracks 2,696 professional contacts across them, including 320 with verified work emails. Across the United States, New York is the largest hub for this category (407 companies); Irvine has 53.

This list covers IT staffing and outsourcing companies headquartered in Irvine, 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

53Companies

2,696Contacts tracked

320Verified emails

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The 24 largest IT staffing and outsourcing companies based in Irvine, United States

Ranked by team size

Top 24 of 53 IT staffing and outsourcing companies based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT staffing and outsourcing 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	Denken Solutions, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	501-1,000	590 contacts →
	Indirect evidence “Denken Solutions Inc.” Source: RevenueBase Database · checked Sep 28, 2026
2	Altezzasys INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	485 contacts →
	Strong evidence “AltezzaSys INC is a global technology services, staffing and outsourcing provider that is committed to helping customers align technology innovation with business strategy.” Source: RevenueBase Database · checked Sep 28, 2026
3	Kore1	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	138 contacts →
	Partial evidence “KORE1 is a nationwide provider of recruiting and staffing services for the Technology, Engineering, Accounting & Finance, Healthcare, and Digital & Creative Services industries.” Source: RevenueBase Database · checked Sep 28, 2026
4	IT Minds LLC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	123 contacts →
	Partial evidence “IT Minds LLC provides the resources for long and short-term contracts.” Source: RevenueBase Database · checked Sep 28, 2026
5	O2 Technologies,inc	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	100 contacts →
	Indirect evidence “O2 Technology attracts imaginative citizens from all types of backgrounds, bringing together excitement and new dreams to meet challenges and appreciate their talent.” Source: RevenueBase Database · checked Sep 28, 2026
6	West Coast Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	201-500	87 contacts →
	Partial evidence “West Coast Consulting is a privately held boutique consulting firm formed in 1998, specializing in providing Information Technology solutions and Outsourcing services.” Source: RevenueBase Database · checked Sep 28, 2026
7	Marquee Staffing	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	79 contacts →
	Indirect evidence “Are you looking for a new job opportunity?” Source: RevenueBase Database · checked Sep 28, 2026
8	Intratek Computer INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	70 contacts →
	Partial evidence “Intratek is a premier provider of IT services, solutions and support.” Source: RevenueBase Database · checked Sep 28, 2026
9	Abotts Consulting INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	65 contacts →
	Strong evidence “ABOTTS is a consulting and staffing services company headquartered in Irvine, California, focused on meeting both IT and non-IT needs of our clients.” Source: RevenueBase Database · checked Sep 28, 2026
10	Connex Info Systems, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	36 contacts →
	Partial evidence “Connex Info Systems is a global IT services company specialized in developing custom software applications and providing consulting services around the world.” Source: RevenueBase Database · checked Sep 28, 2026
11	Greenfield Partners INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	27 contacts →
	Indirect evidence “Greenfield Partners is a boutique recruiting firm uniquely focused on matching the most qualified information technology and healthcare candidates with top employers across a wide…” Source: RevenueBase Database · checked Sep 28, 2026
12	LANI	Strong evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	51-200	24 contacts →
	Strong evidence “LANI has been in business for over 28 years and provides staffing services to a variety of industries, including Banking, Title, Escrow, Mortgage, Credit Unions, IT, Healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
13	Intelligichain	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “artificial intelligence \| deep learning \| computer vision We are a leading IT sourcing company with headquarters in the United States and an office in Serbia.” Source: RevenueBase Database · checked Sep 28, 2026
14	Fortis Resource Partners	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “FORTIS Resource Partners is dedicated to helping our clients find the most qualified professional every time in the least amount of time.” Source: RevenueBase Database · checked Sep 28, 2026
15	Skillsjump	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “Skillsjump is an software consulting company founded by software engineers.” Source: RevenueBase Database · checked Sep 28, 2026
16	Veritas Search Group	Strong evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Strong evidence “Veritas Search Group (VSG) is a recruiting, consulting, and staffing firm specializing in professional services within the IT, Finance & Accounting, and Pharmaceutical domains.” Source: RevenueBase Database · checked Sep 28, 2026
17	Pravis, LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “PRAVIS, LLC is an information technology and services company based out of 7545 IRVINE CTR DR STE 200, IRVINE, California, United States.” Source: RevenueBase Database · checked Sep 28, 2026
18	Seerion Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “SEERION is a leader in IT consulting and Staff Augmentation for Medical Device, Life Sciences and Healthcare Industry.” Source: RevenueBase Database · checked Sep 28, 2026
19	Jobsmart USA	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “JobSMART is a California based Staffing Firm built on finding US based talent focused on Information Technology.” Source: RevenueBase Database · checked Sep 28, 2026
20	recruitmentllc.com	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “We offer to recruit in the Medical, Technical, Cybersecurity, and Financial Industries.#medical #cybersecurity #technology #bank #creditunion We place all levels from Clerical to…” Source: RevenueBase Database · checked Sep 28, 2026
21	Zebra-Net Incorporated	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Recruiting” Source: RevenueBase Database · checked Sep 28, 2026
22	Ps3systems	Strong evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “PS3Systems is a private company based in Irvine, USA, that offers a wide range of services including staffing, digital transformation & IT Solutions to help your business.” Source: RevenueBase Database · checked Sep 28, 2026
23	Greenlight Information Services, LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “WE BLEND CREATIVE, STRATEGIC PLANNING WITH EXPERT KNOWLEDGE TO PROVIDE YOUR COMPANY WITH 21ST CENTURY SOLUTIONS.” Source: RevenueBase Database · checked Sep 28, 2026
24	Capital Workforce Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Capital Workforce Solutions is a full-service recruiting and staffing partner helping companies hire dependable, high-performing talent across Project & Program Management…” 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: IT staffing and outsourcing 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 IT staffing and outsourcing companies.
Partial evidence: Its own public description names part of IT staffing and outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT staffing and outsourcing 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 24 of 53 IT staffing and outsourcing companies based in Irvine, United States

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IT staffing and outsourcing companies based in Irvine, United States at a glance

As of Sep 28, 2026

11.9%Verified-email coverage

50.9Average 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

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 53 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 IT staffing and outsourcing 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 Irvine, United States whose own description of what they do matches “IT staffing and outsourcing 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 IT staffing and outsourcing 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 IT staffing and outsourcing companies, and records with no verified work email. Companies headquartered outside Irvine 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, 320 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.

IT staffing and outsourcing companies 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 IT staffing and outsourcing 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 IT staffing and outsourcing companies are there based in Irvine, United States?

RevenueBase identified 53 IT staffing and outsourcing companies headquartered in Irvine, 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?

Denken Solutions, INC, headquartered in Irvine, tops this list with the largest team on record.

Which city in the United States has the most IT staffing and outsourcing companies?

New York leads the United States with 407 headquartered companies, followed by Houston (291) and Dallas (259). Irvine has 53.

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 320 verified decision-maker contacts tracked across these 53 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.