Company lists · Data refreshed September 2026
Top 25 Security consulting firms based in Los Angeles, United States
RevenueBase identified 88 security consulting firms headquartered in Los Angeles, United States as of September 2026 and tracks 1,226 professional contacts across them, including 149 with verified work emails. New York is the largest hub.
This list covers security consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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.
The 25 largest security consulting firms based in Los Angeles, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 626 | ||||
“Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 102 | ||||
“A security company committed to serving our clients at the highest level.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 91 | ||||
“Black Box Security Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 32 | ||||
“At BGI, we approach every project with a best practices philosophy and an aim to balance risks and threats with global market standards.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Safehouse Security SolutionsPartial evidence | 20 | |||
“Safehouse Security Solutions specializes in delivering elite, world-class security services tailored for corporations, high-profile individuals, and VIPs internationally.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 17 | ||||
“Scorpion Computer Services, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | NetreadyIndirect evidence | 17 | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Franklin Global, INCIndirect evidence | 16 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“At Aventus Security, we are more than just a security service provider – we are your partners in safeguarding what matters most.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 | ||||
“CCTV Sales, CCTV Installation, Security Consultation Services, Armed & Unarmed Uniformed Security Guards, Marked Vehicle Patrol Services, and Virtual Security Guards.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 | ||||
“DUSTWUN provides comprehensive bespoke security solutions for individuals and organizations around the globe.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“At Xcape, Inc.®, we are a team of cybersecurity professionals specializing in building, connecting, supporting, and securing mission-critical infrastructure.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 | ||||
“Discloze is a CREST-accredited offensive security firm based in the United States.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 | ||||
“DotWave Solutions is a cybersecurity consulting firm founded by award-winning professor, Dr.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | LOW Ready ProtectionIndirect evidence | 5 | |||
“Low Ready Protection is a Veteran owned organization with over 20 years of industry experience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Itac SecurityPartial evidence | 5 | |||
“Founded by ex-Israeli Police Special Forces Officer, ITAC provides specialty security services and tactical training.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 | ||||
“IntLös is a Privacy-focused Information Security Managed Service Provider (MSP), with over 15 years of experience providing simply elegant services tailored to exceed our client's…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 | ||||
“At Generative Strategies, we empower organizations to navigate the complex landscape of IT risk and cybersecurity with confidence and precision.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 | ||||
“CMMC L2 Consultation, Implementation, Gap Analysis, and Mock Assessment services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Q4 TechnologiesPartial evidence | 2 | |||
“Q4 Technologies: Your Virtual Security Organization (VSO) Q4 Technologies, a Virtual Security Organization (VSO).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 | ||||
“Arbure Inc, an information security consultancy based in Playa Vista, California, is a trusted leader in security and innovation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Triad Consulting & System Design GroupPartial evidence | 2 | |||
“Triad Consulting was formed by long-time industry professionals with proven track records of excellence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | GuardslinkPartial evidence | 2 | |||
“GuardsLink was created from day one to address the operational needs of small to mid-sized security companies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Wired WorldPartial evidence | 2 | |||
“We are here to offer our customers the best IT Services and Security solutions that help keep their businesses operational and cost effective.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Preijersmak, LLCIndirect evidence | 2 | |||
“PreijersMak, LLC (“PM”) provides crisis management and mitigation services to businesses in all sectors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 88 security consulting firms based in Los Angeles, United States
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Security consulting firms based in Los Angeles, United States at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 88 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 security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “security consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security consulting firms, 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 an evidence 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, 149 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 6, 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.
Security consulting firms by metro in the United States
- Security consulting firms in New York189
- Security consulting firms in Washington139
- Security consulting firms in Houston124
- Security consulting firms in Atlanta118
- Security consulting firms in Austin96
- Security consulting firms in Chicago90
- Security consulting firms in Dallas90
- Security consulting firms in Los Angeles88
- Security consulting firms in Miami88
- Security consulting firms in San Francisco73
- Security consulting firms in Arlington65
- Security consulting firms in Tampa63
- Security consulting firms in Denver56
- Security consulting firms in San Diego55
- Security consulting firms in Alexandria53
- Security consulting firms in Charlotte53
- Security consulting firms in Seattle52
- Security consulting firms in Boston47
- Security consulting firms in Orlando43
- Security consulting firms in San Antonio43
- Security consulting firms in Las Vegas41
- Security consulting firms in Columbia39
- Security consulting firms in Phoenix39
- Security consulting firms in Reston37
- Security consulting firms in Raleigh36
- Security consulting firms in Minneapolis35
- Security consulting firms in Baltimore33
- Security consulting firms in Mclean33
- Security consulting firms in Huntsville29
- Security consulting firms in Columbus28
- Security consulting firms in Herndon28
- Security consulting firms in San Jose28
- Security consulting firms in Pittsburgh27
- Security consulting firms in Ashburn26
- Security consulting firms in Colorado Springs26
- Security consulting firms in Scottsdale26
- Security consulting firms in Philadelphia25
- Security consulting firms in Richmond25
Frequently asked
How many security consulting firms are there based in Los Angeles, United States?
RevenueBase identified 88 security consulting firms 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?
Professional Security Consultants, INC, headquartered in Los Angeles, tops this list with the largest team on record.
Which city has the most security consulting firms?
New York leads with 189 headquartered companies, followed by Washington (139) and Houston (124).
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 149 verified decision-maker contacts tracked across these 88 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 6, 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.
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