Company lists · Data refreshed September 2026

Top 25 Managed IT service providers based in Irvine, United States

Name: Managed IT service providers 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 74 companies tracked

RevenueBase identified 74 managed IT service providers headquartered in Irvine, United States as of September 2026 and tracks 1,247 professional contacts across them, including 490 with verified work emails. New York is the largest hub.

This list covers managed IT service providers 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

74Companies

1,247Contacts tracked

490Verified emails

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The 25 largest managed IT service providers based in Irvine, United States

Ranked by team size

Top 25 of 74 managed IT service providers 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 managed IT service providers: 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	Calltek	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	5,001-10,000	290 contacts →
	Indirect evidence “For more than two decades, CallTek has been a global leader in delivering secure, compliant, and reliable white-label technical support services.” Source: RevenueBase Database · checked Sep 20, 2026
2	Proficio	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	182 contacts →
	Partial evidence “Proficio is a world-class Managed Security Service Provider (MSSP) providing managed detection and response solutions, 24×7 security monitoring and advanced data breach prevention…” Source: RevenueBase Database · checked Sep 20, 2026
3	Circle MSP	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Partial evidence “Managed Technology Services is your steadfast technology partner serving businesses throughout Southern California.” Source: RevenueBase Database · checked Sep 20, 2026
4	Red8	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 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 20, 2026
5	Alvaka	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	57 contacts →
	Strong evidence “Alvaka manages and secures the IT infrastructure of mid-market and enterprise-class companies, enabling them to operate seamlessly in the non-stop, mission-critical world that has…” Source: RevenueBase Database · checked Sep 20, 2026
6	SMS Datacenter	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	51 contacts →
	Strong 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 20, 2026
7	Britecity	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial 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
8	Kaufmanit, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Strong evidence “KaufmanIT is an award-winning managed service provider from Irvine, specializing in IT solutions tailored to small to mid-sized businesses.” Source: RevenueBase Database · checked Sep 20, 2026
9	Techheights	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	29 contacts →
	Strong evidence “TechHeights is an award-winning Managed Service Provider delivering enterprise-grade IT, cybersecurity, and cloud solutions to businesses across Orange County, Los Angeles, and…” Source: RevenueBase Database · checked Sep 20, 2026
10	Next IT Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	28 contacts →
	Partial 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
11	LAN WAN Enterprise IT Solutions	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	21 contacts →
	Strong evidence “LAN WAN IT Solutions is the market-leading Managed IT Services and Solutions provider in Orange County.” Source: RevenueBase Database · checked Sep 20, 2026
12	Protelligent, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	21 contacts →
	Indirect evidence “Protelligent wasn't built on tiers and transactions but on a duty to be better than the rest.” Source: RevenueBase Database · checked Sep 20, 2026
13	Kumo Cloud Solutions	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Kumo is one of the fastest-growing Tech Solution Providers in Southern California.” Source: RevenueBase Database · checked Sep 20, 2026
14	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
15	Greenlight Cyber	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Welcome to Greenlight Cyber, where we merge creativity and strategic expertise with cutting-edge technology to secure and elevate your business.” Source: RevenueBase Database · checked Sep 20, 2026
16	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
17	DML IT Solutions	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “AT DML IT solutions, we're reshaping the MSP landscape across Orange County and Los Angeles County.” Source: RevenueBase Database · checked Sep 20, 2026
18	Atomic Technology Solutions	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	15 contacts →
	Strong 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
19	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
20	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
21	Netminded, A Technology Solutions Company	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “NetMinded provides full service IT support for small businesses in Southern California.” Source: RevenueBase Database · checked Sep 20, 2026
22	Nuebis	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “Nuebis offers complete IT management solutions that take the hassles out of managing and maintaining your critical IT systems.” Source: RevenueBase Database · checked Sep 20, 2026
23	CSP Networks	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	10 contacts →
	Strong 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
24	The Integration Works, LLC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Strong evidence “The Integration Works, LLC is an IT Services Company specializing in Managed Services for small to medium sized businesses, including Hosted Services, Cloud Services, Security…” Source: RevenueBase Database · checked Sep 20, 2026
25	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

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: managed IT service providers. 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 managed IT service providers.
Partial evidence: Its own public description names part of managed IT service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name managed IT service providers. 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 74 managed IT service providers based in Irvine, United States

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Managed IT service providers based in Irvine, United States at a glance

As of Sep 20, 2026

39.3%Verified-email coverage

16.9Average contacts per company

11-50Median size (employees)

414.9%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 74 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 managed IT service providers, 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 “managed IT service providers”. 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 managed IT service providers), 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 managed IT service providers, 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, 490 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.

Managed IT service providers 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 managed IT service providers, 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 managed IT service providers are there based in Irvine, United States?

RevenueBase identified 74 managed IT service providers 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?

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

Which city has the most managed IT service providers?

New York leads with 307 headquartered companies, followed by Houston (210) and Dallas (135).

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 490 verified decision-maker contacts tracked across these 74 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.