Company lists · Data refreshed September 2026

Top 25 IT support companies based in Irvine, United States

Name: IT support 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 20, 2026 49 companies tracked

RevenueBase identified 49 IT support companies headquartered in Irvine, United States as of September 2026 and tracks 529 professional contacts across them, including 144 with verified work emails. New York is the largest hub.

This list covers IT support 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 20, 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 20, 2026 86% judged on-target in blind review

49Companies

529Contacts tracked

144Verified emails

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The 25 largest IT support companies based in Irvine, United States

Ranked by team size

Top 25 of 49 IT support companies based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to IT support 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	Technijian IT Support	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	41 contacts →
	Indirect evidence “Two Decades of Technological Excellence: A Chronicle of Technijian's Evolution Celebrating 24 years in the business, Technijian has been a stalwart force in the ever-evolving…” Source: RevenueBase Database · checked Sep 20, 2026
2	Britecity	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “BRITECITY is a Managed Service Provider (MSP) based in Irvine, California, serving small and mid-sized businesses across Orange County.” Source: RevenueBase Database · checked Sep 20, 2026
3	Next IT Solutions	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	28 contacts →
	Strong evidence “Protecting & Optimizing Orange County and Nationwide Businesses for 14+ Years IT and Cyber Support in Irvine, CA Next IT Solutions partners with organizations in delivering state…” Source: RevenueBase Database · checked Sep 20, 2026
4	Swifttech Solutions, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “SwiftTech Solutions works with Small, Medium, and Large size businesses to improve their technology services and bring them into a safe and trusted IT world.” Source: RevenueBase Database · checked Sep 20, 2026
5	Strikeworks	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Let’s face it: IT isn’t the most glamorous part of running a business, but it doesn’t have to be a constant headache either.” Source: RevenueBase Database · checked Sep 20, 2026
6	Atomic Technology Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “At Atomic Technology Solutions, we provide organizations with reliable, enterprise-grade Managed IT services and Cybersecurity solutions that minimize risk and ensure operational…” Source: RevenueBase Database · checked Sep 20, 2026
7	Tailored Technology Services INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Tailored Technology Services is an Information Technology company that strives to recognize the various needs of every client.” Source: RevenueBase Database · checked Sep 20, 2026
8	Cynexlink	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	13 contacts →
	Partial evidence “Welcome to Cynexlink, your premier global IT and cybersecurity partner.” Source: RevenueBase Database · checked Sep 20, 2026
9	Netminded, A Technology Solutions Company	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “NetMinded provides full service IT support for small businesses in Southern California.” Source: RevenueBase Database · checked Sep 20, 2026
10	CSP Networks	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “CSP Networks is an award-winning IT Managed Service Provider (MSP), that combines strategic advisory, technical and cyber security expertise, and the ability to effectively…” Source: RevenueBase Database · checked Sep 20, 2026
11	Amicus MSP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “We Solve IT For You!” Source: RevenueBase Database · checked Sep 20, 2026
12	Final Connect Corp	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong evidence “Contact us at (877) 287-9751 Managed IT Services - Providing cost protection and operational efficiencies through fixed fee, proactive maintenance and support services.” Source: RevenueBase Database · checked Sep 20, 2026
13	Linutech Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “At our company, we provide enterprises with cutting-edge, fully integrated IT solutions tailored to their specific needs.” Source: RevenueBase Database · checked Sep 20, 2026
14	Oncall It, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
15	Drpsec LLC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “DRPSEC is your ideal IT support partner.” Source: RevenueBase Database · checked Sep 20, 2026
16	E-Possible, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “IT service provider serving small and mid size businesses since 1998.” Source: RevenueBase Database · checked Sep 20, 2026
17	Buzz Cybersecurity	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “We help business scale by providing any IT Hardware, configuring, and installing them onsite while ensuring they are serviced, maintained, and protected from hackers.” Source: RevenueBase Database · checked Sep 20, 2026
18	Integrated Computer Technologies, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “Integrated Computer Technologies, Inc.(ICT) is a professional, computer networking company delivering Premium Network Managed Services, Incidental Computer Network Support, and…” Source: RevenueBase Database · checked Sep 20, 2026
19	Ayvant INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “Ayvant is a trusted Managed IT Services Provider catering to the technology needs of small and medium businesses across the US and Canada.” Source: RevenueBase Database · checked Sep 20, 2026
20	Gibb Network Solutions INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
21	Advantech IT Solutions, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Strong evidence “Advantech IT Solutions, your trusted outsource partner for IT consulting, data protection, network support and maintenance.” Source: RevenueBase Database · checked Sep 20, 2026
22	G&c Technical Services, LLC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Strong evidence “G&C Technical Services, located in Irvine, California, offers superior IT consulting and support to businesses throughout Orange County and surrounding areas.” Source: RevenueBase Database · checked Sep 20, 2026
23	Vistem Solutions, INC	Indirect evidence	Irvine, United StatesHQ checked Sep 20, 2026	11-50	2 contacts →
	Indirect evidence “Vistem Solutions Inc.” Source: RevenueBase Database · checked Sep 20, 2026
24	Itperfection Network Security	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Partial evidence “IT Managed Service Provider, 20 Years of Experience in planning, implementing, maintaining, and troubleshooting IT infrastructure and computer networks.” Source: RevenueBase Database · checked Sep 20, 2026
25	Cmsp- Managed IT Services	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	1 contacts →
	Partial evidence “CMSP is a Managed IT Service Provider.” Source: RevenueBase Database · checked Sep 20, 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 support 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 support companies.
Partial evidence: Its own public description names part of IT support companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT support 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 49 IT support companies based in Irvine, United States

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IT support companies based in Irvine, United States at a glance

As of Sep 20, 2026

27.2%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

495.9%Largest-city concentration · New York

Sep 20, 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 Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 49 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 support 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 support 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 support 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 support 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, 144 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 20, 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 support 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 support 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 support companies are there based in Irvine, United States?

RevenueBase identified 49 IT support 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?

Technijian IT Support, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most IT support companies?

New York leads with 243 headquartered companies, followed by Houston (149) and Miami (102).

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 144 verified decision-maker contacts tracked across these 49 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 20, 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.