Company lists · Data refreshed September 2026
Top 25 IT security management companies based in Irvine, United States
RevenueBase identified 36 IT security management companies headquartered in Irvine, United States as of September 2026 and tracks 708 professional contacts across them, including 396 with verified work emails. Across the United States, New York is the largest hub for this category (200 companies); Irvine has 36.
This list covers IT security management 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.
The 25 largest IT security management companies based in Irvine, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 199 contacts → | ||||
Partial evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 57 contacts → | ||||
Partial 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 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 27 contacts → | ||||
Partial evidence “Right Click is an Orange County based IT Consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Indirect evidence “eSecurity Solutions is a One-Stop Cybersecurity Solution provider to businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Partial evidence “Enterprise clients have counted on DFND Security, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 15 contacts → | ||||
Partial evidence “NNT is now part of Netwrix, a cybersecurity vendor that makes data security easy.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Partial evidence “Welcome to Cynexlink, your premier global IT and cybersecurity partner.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Partial evidence “Privageo is a data privacy & security solutions provider.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Partial evidence “M9 Cloud offers a full suite of affordable & scalable outsourcing & professional services solutions (including):* Cyber Security Services * Infrastructure as a Service (IaaS)…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “Linkpro Technologies is a computer & network security company based out of P.O.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Strong evidence “Technology’s Edge provides a high level of IT Managed Security Services to businesses in the Greater LA & Orange County Area.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Partial evidence “Advantech IT Solutions, your trusted outsource partner for IT consulting, data protection, network support and maintenance.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “We help organizations identify cyber risk, prevent attacks, and meet security and compliance requirements.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “We help companies make better use of existing cybersecurity investments.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Industry: Cybersecurity | Headquarters: Irvine, CA Website: About Us Cybermack Enterprises is a premier Managed Security Services Provider (MSSP) offering end-to-end cybersecurity…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “CMSP is a Managed IT Service Provider.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Strong evidence “IT Security Assessments and Project Services to Managed Services, our experts are here to help.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 security management 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 security management companies.
- Partial evidence
- Its own public description names part of IT security management companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT security management 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 36 IT security management companies based in Irvine, United States
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IT security management companies based in Irvine, United States at a glance
As of Sep 28, 2026Companies by employee count
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 36 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 security management 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 security management 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 security management 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 security management 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, 396 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 security management companies by metro in the United States
- IT security management companies in New York200
- IT security management companies in Houston140
- IT security management companies in Atlanta115
- IT security management companies in Austin114
- IT security management companies in Miami109
- IT security management companies in Washington101
- IT security management companies in Chicago100
- IT security management companies in Dallas100
- IT security management companies in Tampa86
- IT security management companies in San Francisco85
- IT security management companies in San Diego70
- IT security management companies in Los Angeles69
- IT security management companies in Charlotte61
- IT security management companies in Denver58
- IT security management companies in Boston54
- IT security management companies in Las Vegas52
- IT security management companies in Arlington51
- IT security management companies in Phoenix50
- IT security management companies in Columbia45
- IT security management companies in Orlando45
- IT security management companies in San Antonio44
- IT security management companies in Alexandria42
- IT security management companies in Seattle41
- IT security management companies in Wilmington39
- IT security management companies in Raleigh38
- IT security management companies in Baltimore35
- IT security management companies in Fairfax34
- IT security management companies in Reston33
- IT security management companies in Mclean32
- IT security management companies in Portland32
- IT security management companies in Richmond32
- IT security management companies in Alpharetta31
- IT security management companies in Plano31
- IT security management companies in Fort Lauderdale30
- IT security management companies in Minneapolis30
- IT security management companies in Scottsdale30
- IT security management companies in Ashburn29
- IT security management companies in Columbus29
- IT security management companies in Indianapolis29
- IT security management companies in Pittsburgh28
- IT security management companies in San Jose28
- IT security management companies in Huntsville27
- IT security management companies in Nashville27
- IT security management companies in Dover26
- IT security management companies in Jacksonville26
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 security management 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 security management companies are there based in Irvine, United States?
RevenueBase identified 36 IT security management 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?
Tevora, headquartered in Irvine, tops this list with the largest team on record.
Which city in the United States has the most IT security management companies?
New York leads the United States with 200 headquartered companies, followed by Houston (140) and Atlanta (115). Irvine has 36.
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 396 verified decision-maker contacts tracked across these 36 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.
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