Company lists · Data refreshed September 2026

Top 25 Cybersecurity IT support companies based in Los Angeles, United States

Name: Cybersecurity IT support companies based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 116 companies tracked

RevenueBase identified 116 cybersecurity IT support companies headquartered in Los Angeles, United States as of September 2026 and tracks 1,271 professional contacts across them, including 260 with verified work emails. New York is the largest hub.

This list covers cybersecurity IT support companies headquartered in Los Angeles, 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 21, 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 21, 2026 86% judged on-target in blind review

116Companies

1,271Contacts tracked

260Verified emails

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The 25 largest cybersecurity IT support companies based in Los Angeles, United States

Ranked by team size

Top 25 of 116 cybersecurity IT support companies based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity 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	NIC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	n/a	581 contacts →
	Strong evidence “NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.” Source: RevenueBase Database · checked Sep 21, 2026
2	M-Theory Group	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	62 contacts →
	Indirect evidence “Founded nearly three decades ago and headquartered in Los Angeles, California, M-Theory Group is a premier provider of integrated technology services, specializing in engineering…” Source: RevenueBase Database · checked Sep 21, 2026
3	Goodsuite	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	45 contacts →
	Indirect evidence “GoodSuite is the premier provider of critical business systems, offering a wide array of products and services.” Source: RevenueBase Database · checked Sep 21, 2026
4	Crimson IT	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	43 contacts →
	Partial evidence “Combining robust human and AI powered cyber security measures with efficient IT management, our business delivers comprehensive solutions.” Source: RevenueBase Database · checked Sep 21, 2026
5	Cyberduo	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	36 contacts →
	Partial evidence “CyberDuo offers a comprehensive suite of Microsoft Cloud and Cybersecurity services.” Source: RevenueBase Database · checked Sep 21, 2026
6	DCG Technical Solutions, LLC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	35 contacts →
	Strong evidence “Computer Network Service and IT Support.” Source: RevenueBase Database · checked Sep 21, 2026
7	IT Accuracy	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	33 contacts →
	Partial evidence “IT Accuracy is a Managed IT Services company specializing in Cloud Computing, Server Management, Help Desk, Cyber Security, and Disaster Recovery.” Source: RevenueBase Database · checked Sep 21, 2026
8	Clearfuze Networks, INC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Strong evidence “Whether you need employee onboarding support, stronger cybersecurity, or virtual CIO services, ClearFuze creates custom IT solutions that help growing businesses thrive in Los…” Source: RevenueBase Database · checked Sep 21, 2026
9	Divoro	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Divoro is a provider of Cyber Security and Technology services to software and technology-enabled organizations.” Source: RevenueBase Database · checked Sep 21, 2026
10	Feedwire	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “Feedwire is the best boutique IT (Information Technology) consulting firm in Los Angeles.” Source: RevenueBase Database · checked Sep 21, 2026
11	Edit Technology Solutions, INC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	51-200	20 contacts →
	Strong evidence “ETS has been providing managed IT services, technical help desk support, computer support, and consulting since 2011.” Source: RevenueBase Database · checked Sep 21, 2026
12	ALT Consulting	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “ALT Consulting is the trusted IT partner for law firms, financial services, and other professional organizations across North America.” Source: RevenueBase Database · checked Sep 21, 2026
13	Advanced Networks INC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	18 contacts →
	Strong evidence “Advanced Networks is a managed IT and cybersecurity provider headquartered in Los Angeles, with offices in Orange County and San Francisco, serving organizations across Southern…” Source: RevenueBase Database · checked Sep 21, 2026
14	Netready	Strong evidence	Los Angeles, United StatesHQ checked Sep 21, 2026	11-50	17 contacts →
	Strong evidence “At Netready, we help Southern California businesses take control of their IT and Cybersecurity, from infrastructure and cloud systems to monitoring, compliance, and prevention.” Source: RevenueBase Database · checked Sep 21, 2026
15	Frontline, LLC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Frontline has been managing IT operations for companies in Los Angeles for over 15 years and consistently ranks as one of the top managed IT service providers in the greater Los…” Source: RevenueBase Database · checked Sep 21, 2026
16	Sandbox Technologies	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
17	ZZ Computer	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1-10	12 contacts →
	Partial evidence “ZZ Computer has been providing computer management and IT service to the greater Los Angeles area since 1989.” Source: RevenueBase Database · checked Sep 21, 2026
18	Marvis Technology	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Marvis Technology is an innovative and technology driven company that provides IT consulting and Managed Services for SMB and Enterprise.” Source: RevenueBase Database · checked Sep 21, 2026
19	Securenet Solutions, INC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Managing Your Network for Productivity and Peace of Mind \| Managed IT Services Founded in 2002, SecureNet Solutions is a leading technology firm providing comprehensive IT…” Source: RevenueBase Database · checked Sep 21, 2026
20	Xcape, INC	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	6 contacts →
	Strong evidence “At Xcape, Inc.®, we are a team of cybersecurity professionals specializing in building, connecting, supporting, and securing mission-critical infrastructure.” Source: RevenueBase Database · checked Sep 21, 2026
21	Datawise Networks, INC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “In today’s technology-driven world, IT, cyber security, and telecommunication systems are not just associated with costs, but are a critical component of business operations.” Source: RevenueBase Database · checked Sep 21, 2026
22	We Solve Problems	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Strong evidence “YOU'RE GOING TO LOVE GIVING US YOUR PROBLEMS We created an innovative IT managed services and support firm in Los Angeles to take on the problems of the modern business.” Source: RevenueBase Database · checked Sep 21, 2026
23	Catenactio	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Mission: Treat People Well.” Source: RevenueBase Database · checked Sep 21, 2026
24	Methodology IT	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	5 contacts →
	Strong evidence “Methodology IT provides IT support and cybersecurity for small and mid-sized businesses.” Source: RevenueBase Database · checked Sep 21, 2026
25	Neuron Computer Services, LLC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “Neuron provides managed IT services for small and mid-sized manufacturing companies that rely on stable, secure systems to keep operations moving.” Source: RevenueBase Database · checked Sep 21, 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: cybersecurity 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 cybersecurity IT support companies.
Partial evidence: Its own public description names part of cybersecurity 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 cybersecurity 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 116 cybersecurity IT support companies based in Los Angeles, United States

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Cybersecurity IT support companies based in Los Angeles, United States at a glance

As of Sep 21, 2026

20.5%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

311.2%Largest-city concentration · New York

Sep 21, 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 Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 116 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 cybersecurity 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 Los Angeles, United States whose own description of what they do matches “cybersecurity 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 cybersecurity 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 cybersecurity IT support companies, and records with no verified work email. Companies headquartered outside Los Angeles 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, 260 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 21, 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.

Cybersecurity 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 cybersecurity 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 cybersecurity IT support companies are there based in Los Angeles, United States?

RevenueBase identified 116 cybersecurity IT support companies headquartered in Los Angeles, 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?

NIC, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most cybersecurity IT support companies?

New York leads with 361 headquartered companies, followed by Houston (245) and Miami (187).

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 260 verified decision-maker contacts tracked across these 116 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 21, 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.