Company lists · Data refreshed September 2026

Top 25 Enterprise IT consultancies based in Irvine, United States

Name: Enterprise IT consultancies based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 140 companies tracked

RevenueBase identified 140 enterprise IT consultancies headquartered in Irvine, United States as of September 2026 and tracks 7,487 professional contacts across them, including 2,730 with verified work emails. New York is the largest hub.

This list covers enterprise IT consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

140Companies

7,487Contacts tracked

2,730Verified emails

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The 25 largest enterprise IT consultancies based in Irvine, United States

Ranked by team size

Top 25 of 140 enterprise IT consultancies based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise IT consultancies: 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	Trace3	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	1,001-5,000	1,345 contacts →
	Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 24, 2026
2	Preludesys	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	699 contacts →
	Indirect evidence “PreludeSys is a global technology solutions provider since 1998.” Source: RevenueBase Database · checked Sep 24, 2026
3	Hitachi Solutions America	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	570 contacts →
	Partial evidence “Hitachi Solutions is a global IT consulting and services firm.” Source: RevenueBase Database · checked Sep 24, 2026
4	Technologent	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	492 contacts →
	Indirect evidence “Technologent is a women-owned, WBENC-certified and global provider of Information Technology solutions and services for Fortune companies.” Source: RevenueBase Database · checked Sep 24, 2026
5	Sigma Infosolutions LTD	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	454 contacts →
	Indirect evidence “Sigma Infosolutions is a prominent provider of technology solutions and services globally, with our headquarters in Irvine, USA, and global offices in Australia & India.” Source: RevenueBase Database · checked Sep 24, 2026
6	Vision33	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	401 contacts →
	Indirect evidence “Vision33 Inc.” Source: RevenueBase Database · checked Sep 24, 2026
7	Authority Partners	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	367 contacts →
	Indirect evidence “Authority Partners is a global technology strategy consulting and custom software development company.” Source: RevenueBase Database · checked Sep 24, 2026
8	Xavor Corporation	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	263 contacts →
	Indirect evidence “Xavor has been a trusted technology partner to Fortune 500s, SMEs, and startups for over 3 decades.” Source: RevenueBase Database · checked Sep 24, 2026
9	Nexinfo Solutions, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	241 contacts →
	Indirect evidence “NexInfo is a specialized consulting company improving business processes and process automation in the Supply Chain and Product Lifecycle Management domains.” Source: RevenueBase Database · checked Sep 24, 2026
10	OP	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	170 contacts →
	Indirect evidence “OP is one of the fastest-growing technology consulting and solutions companies in the U.S.” Source: RevenueBase Database · checked Sep 24, 2026
11	Neelblue Technologies	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	158 contacts →
	Partial evidence “NeelBlue Technologies provides IT consulting and technical expertise to all its clients across the globe.” Source: RevenueBase Database · checked Sep 24, 2026
12	Mclaren Strategic Solutions MSS	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	153 contacts →
	Indirect evidence “McLaren Strategic Solutions (MSS) is the next generation technology services and digital transformation company.” Source: RevenueBase Database · checked Sep 24, 2026
13	Xcentium	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	138 contacts →
	Partial evidence “XCentium is a digital consultancy focused on helping enterprises align their technology strategy with business goals to drive transformation, innovation, and sustainable growth.” Source: RevenueBase Database · checked Sep 24, 2026
14	Blytheco	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	133 contacts →
	Indirect evidence “For over 45 years, Blytheco has been the transformation partner of choice for over companies nationwide.” Source: RevenueBase Database · checked Sep 24, 2026
15	Kaygen, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	132 contacts →
	Indirect evidence “Kaygen, an award-winning technology consulting and talent firm, assists organizations to achieve digital transformation.” Source: RevenueBase Database · checked Sep 24, 2026
16	Ejamerica	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	132 contacts →
	Partial evidence “We provide Digital Application Services, Cyber Security Services, IT Consulting Services, Modern End-User Services, Data Center and Cloud Services and IT Staffing services.” Source: RevenueBase Database · checked Sep 24, 2026
17	West Coast Consulting	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	87 contacts →
	Indirect 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 24, 2026
18	Indusa	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	501-1,000	81 contacts →
	Partial evidence “Synoptek (previously Indusa) is a global systems integrator and managed IT services provider, offering comprehensive IT management and consultancy services to organizations…” Source: RevenueBase Database · checked Sep 24, 2026
19	Intratek Computer INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	70 contacts →
	Partial evidence “Intratek is a premier provider of IT services, solutions and support.” Source: RevenueBase Database · checked Sep 24, 2026
20	Abotts Consulting INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	65 contacts →
	Partial 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 24, 2026
21	Red8	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	201-500	60 contacts →
	Partial evidence “Red8, a division of Insight Capital Solutions, is a leading IT solutions provider helping organizations solve complex technology challenges and accelerate digital transformation.” Source: RevenueBase Database · checked Sep 24, 2026
22	Kbquest	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	51 contacts →
	Indirect evidence “As a global digital transformation consulting firm with more than 1,300 professionals, specializing in AI Solutions, Cloud, Automation and Data technologies.” Source: RevenueBase Database · checked Sep 24, 2026
23	SMS Datacenter	Partial evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	51-200	51 contacts →
	Partial evidence “Founded in 1982, SMS is a leading provider of Managed Services, IT Strategy & Consulting, Software Development & Analytics, Private Managed Cloud, and Colocation Services.” Source: RevenueBase Database · checked Sep 24, 2026
24	Sererra	Indirect evidence	Irvine, United StatesHQ checked Sep 24, 2026	51-200	45 contacts →
	Indirect evidence “Sererra is a Cloud Technology and Management Consulting firm that delivers "turnkey" business solutions created by business managers for business managers.” Source: RevenueBase Database · checked Sep 24, 2026
25	Airgap Labs LLC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 24, 2026	11-50	27 contacts →
	Indirect evidence “Fostering Client growth and success.” Source: RevenueBase Database · checked Sep 24, 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: enterprise IT consultancies. 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 enterprise IT consultancies.
Partial evidence: Its own public description names part of enterprise IT consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise IT consultancies. 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 140 enterprise IT consultancies based in Irvine, United States

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Enterprise IT consultancies based in Irvine, United States at a glance

As of Sep 24, 2026

36.5%Verified-email coverage

53.5Average contacts per company

11-50Median size (employees)

602.9%Largest-city concentration · New York

Sep 24, 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 140 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 enterprise IT consultancies, 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 “enterprise IT consultancies”. 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 enterprise IT consultancies), 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 enterprise IT consultancies, 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, 2,730 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 24, 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.

Enterprise IT consultancies 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 enterprise IT consultancies, 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 enterprise IT consultancies are there based in Irvine, United States?

RevenueBase identified 140 enterprise IT consultancies 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?

Trace3, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most enterprise IT consultancies?

New York leads with 844 headquartered companies, followed by Houston (521) and Dallas (456).

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 2,730 verified decision-maker contacts tracked across these 140 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 24, 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.