Company lists · Data refreshed November 2026

Top 24 IT security consulting services based in Irvine, United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 46 companies tracked

RevenueBase identified 46 company matches for IT security consulting services associated with Irvine, United States as of November 2026 and tracks 811 professional contacts across them, including 335 with verified work emails. Across the United States, New York is the largest hub for this category (367 companies); Irvine has 46.

This list covers company matches for IT security consulting services associated with Irvine, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

46Companies

811Contacts tracked

335Verified emails

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The 24 largest IT security consulting services based in Irvine, United States

Ranked by team size

Top 24 of 46 company matches for IT security consulting services based in Irvine, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ejamerica	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	501-1,000	146 contacts →
	Exact match “We provide Digital Application Services, Cyber Security Services, IT Consulting Services, Modern End-User Services, Data Center and Cloud Services and IT Staffing services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Alvaka	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	51-200	59 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Next IT Solutions	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	35 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Right Click, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	33 contacts →
	Exact match “Right Click is an Orange County based IT Consulting firm.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Esecurity Solutions	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	23 contacts →
	Exact match “eSecurity Solutions is a One-Stop Cybersecurity Solution provider to businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Greenlight Cyber	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	20 contacts →
	Exact match “Welcome to Greenlight Cyber, where we merge creativity and strategic expertise with cutting-edge technology to secure and elevate your business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Atomic Technology Solutions	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “At Atomic Technology Solutions, we provide organizations with reliable, enterprise-grade Managed IT services and Cybersecurity solutions that minimize risk and ensure operational…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Cynexlink	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	51-200	13 contacts →
	Exact match “Welcome to Cynexlink, your premier global IT and cybersecurity partner.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Privageo	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	12 contacts →
	Exact match “Privageo is a data privacy & security solutions provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Netminded, A Technology Solutions Company	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	12 contacts →
	Exact match “NetMinded provides full service IT support for small businesses in Southern California.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	CSP Networks	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	11 contacts →
	Exact match “CSP Networks is an award-winning, AI-First, Managed IT Service Company, that combines strategic advisory, technical and cyber security expertise, and the ability to effectively…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	M9 Cloud	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	9 contacts →
	Exact match “M9 Cloud offers a full suite of affordable & scalable outsourcing & professional services solutions (including):* Cyber Security Services * Infrastructure as a Service (IaaS)…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Altius It, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	5 contacts →
	Exact match “We help organizations identify cyber risk, prevent attacks, and meet security and compliance requirements.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Vistem Solutions, INC	Exact match	Irvine, United StatesHQ recorded Nov 5, 2026	11-50	5 contacts →
	Exact match “Vistem Solutions Inc.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Technology's Edge	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	5 contacts →
	Exact match “Technology’s Edge provides a high level of IT Managed Security Services to businesses in the Greater LA & Orange County Area.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Linkpro Technologies	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	5 contacts →
	Exact match “Linkpro Technologies is a computer & network security company based out of P.O.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Advantech IT Solutions, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	4 contacts →
	Exact match “Advantech IT Solutions, your trusted outsource partner for IT consulting, data protection, network support and maintenance.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Augury IT	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	4 contacts →
	Exact match “Augury IT, a Southern California-based innovator in Information Technology, Cyber Security, and Creative Solutions Architecture.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Itperfection Network Security	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	2 contacts →
	Exact match “IT Managed Service Provider, 20 Years of Experience in planning, implementing, maintaining, and troubleshooting IT infrastructure and computer networks.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Greenlight Information Services, LLC	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	1 contacts →
	Exact match “WE BLEND CREATIVE, STRATEGIC PLANNING WITH EXPERT KNOWLEDGE TO PROVIDE YOUR COMPANY WITH 21ST CENTURY SOLUTIONS.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Specialty Advisory Services, INC	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	11-50	1 contacts →
	Exact match “Specialty Advisory Services (SAS) is a boutique consulting firm that specializes in IT risk management & controls consulting.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Netsyntropy	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “IT Security Assessments and Project Services to Managed Services, our experts are here to help.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Cloudstep Corp	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Your IT Matchmaker	Exact match	Irvine, CA, United StatesHQ recorded Nov 5, 2026	1-10	1 contacts →
	Exact match “Hello!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT security consulting services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 46 IT security consulting services based in Irvine, United States

See the full list, filter by size, metro and specialty, and access 335 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT security consulting services based in Irvine, United States at a glance

As of Nov 5, 2026

41.3%Verified-email coverage

17.6Average contacts per company

11-50Median size (employees)

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 46 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Irvine, United States whose business descriptions match “IT security consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 335 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT security consulting services by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT security consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT security consulting services are there based in Irvine, United States?

RevenueBase identified 46 company matches for IT security consulting services associated with Irvine, United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ejamerica tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most IT security consulting services?

New York leads the United States with 367 company records, followed by Houston (218) and Atlanta (199). Irvine has 46.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 335 professional contacts with verified work emails tracked across these 46 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.