Company lists · Data refreshed September 2026
Top 20 Security guard services based in Los Angeles, United States
RevenueBase identified 107 company matches for security guard services associated with Los Angeles, United States as of September 2026 and tracks 1,604 professional contacts across them, including 62 with verified work emails. Across the United States, New York is the largest hub for this category (111 companies); Los Angeles follows with 107.
This list covers company matches for security guard services associated with Los Angeles, 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 September 14, 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 20 largest security guard services based in Los Angeles, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 626 contacts → | ||||
Exact match “Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 2 | 102 contacts → | ||||
Exact match “A security company committed to serving our clients at the highest level.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 3 | 66 contacts → | ||||
Exact match “ACS Security has been serving as the go-to residential and business alarm and patrol service for the West Side of Los Angeles since 1983.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 4 | 39 contacts → | ||||
Exact match “LSI is a full spectrum security solutions provider that specializes in manpower.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 5 | 32 contacts → | ||||
Exact match “Allied International Security offers armed/unarmed Guards, Patrol Services, CCTV Surveillance for businesses, construction sites, schools, etc.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 6 | 30 contacts → | ||||
Exact match “We provide the foremost in private security guards and patrol services available today.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 7 | 13 contacts → | ||||
Exact match “At Aventus Security, we are more than just a security service provider – we are your partners in safeguarding what matters most.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 8 | 12 contacts → | ||||
Exact match “American Global Security aims to place the bar high for personal protection solutions in California by using advanced methods, acquiring the greatest of expectations for our…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 9 | 11 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 10 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 11 | 8 contacts → | ||||
Exact match “CCTV Sales, CCTV Installation, Security Consultation Services, Armed & Unarmed Uniformed Security Guards, Marked Vehicle Patrol Services, and Virtual Security Guards.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 12 | 5 contacts → | ||||
Exact match “Security Guard Solutions provides our clients with private security services that are customized to meet their security needs and executed to the highest possible standards.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “Low Ready Protection is a Veteran owned organization with over 20 years of industry experience.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match “Aable Security has been protecting Los Angeles since 1998 with one promise, dependable security you can trust.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “Globe Protective Services is a Los Angeles based security company that was founded by an individual who recognized the increasing need for security services.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “American Frontline Guards is a Los Angeles based security guard company.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “Next Level Protection Services is a premier private security company based in Greater Los Angeles, committed to delivering unmatched protection through professionalism, vigilance…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 18 | 1 contacts → | ||||
Exact match “Our mission at GCS Inc.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match “YOUR PROTECTION OUR PRIORITY Based in Los Angeles, California, Guardiance Security Services is a trusted provider of premium security solutions in Southern California.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “Alpha Private Protection is a leading security firm dedicated to providing exceptional protection and peace of mind to businesses across various industries.” Recorded in the RevenueBase company graph · Sep 14, 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 “security guard 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 20 of 107 security guard services based in Los Angeles, United States
See the full list, filter by size, metro and specialty, and access 62 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Security guard services based in Los Angeles, United States at a glance
As of Sep 14, 2026Companies by employee count
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 107 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 Los Angeles, United States whose business descriptions match “security guard 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 62 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 September 14, 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.
Security guard services by metro in the United States
- Security guard services in New York111
- Security guard services in Houston73
- Security guard services in Miami63
- Security guard services in Dallas46
- Security guard services in Chicago43
- Security guard services in Atlanta36
- Security guard services in Austin33
- Security guard services in Phoenix33
- Security guard services in Las Vegas29
- Security guard services in Denver28
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 “security guard services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security guard services are there based in Los Angeles, United States?
RevenueBase identified 107 company matches for security guard services associated with Los Angeles, United States as of September 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?
Professional Security Consultants, INC 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 security guard services?
New York leads the United States with 111 company records, followed by Los Angeles (107) and Houston (73).
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 62 professional contacts with verified work emails tracked across these 107 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 September 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 107 security guard services based in Los Angeles, United States. Start with a free account, no credit card.
Download this list →Related lists
Security guard services by geography
- Security guard services based in the United States
- Security guard services based in the United Kingdom
- Security guard services based in Brazil
- Security guard services based in France
- Security guard services based in Canada
- Security guard services based in Germany
- Security guard services based in Italy
- Security guard services based in Australia
- Security guard services based in the Netherlands
- Security guard services based in South Africa
- Security guard services based in Mexico
- Security guard services based in Spain
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.
More company lists
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- Security guard services based in the United States
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- Security guard services based in Brazil
- Security guard services based in France
- Security guard services based in Canada
- Security guard services based in Germany
Company intelligence · public preview
Top 20 security guard services based in Los Angeles, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 107 matching company records for security guard services based in Los Angeles, United States, with 1,604 tracked contacts and 62 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 security guard services based in Los Angeles, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Professional Security Consultants, INCpscsite.comHQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 626 contacts → |
“Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Global Security Conceptsgscsecurity.comHQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 102 contacts → |
“A security company committed to serving our clients at the highest level.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ACS Securityacssecurity.comHQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 66 contacts → |
“ACS Security has been serving as the go-to residential and business alarm and patrol service for the West Side of Los Angeles since 1983.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  LAW Security & Investigationslawsecurityinc.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 39 contacts → |
“LSI is a full spectrum security solutions provider that specializes in manpower.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Allied International Securityalliedintsecurity.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 32 contacts → |
“Allied International Security offers armed/unarmed Guards, Patrol Services, CCTV Surveillance for businesses, construction sites, schools, etc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Guardian Eagle Security INCges.netHQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 30 contacts → |
“We provide the foremost in private security guards and patrol services available today.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Aventus Security LLCaventussecurity.comHQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 13 contacts → |
“At Aventus Security, we are more than just a security service provider – we are your partners in safeguarding what matters most.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | American Global Security, INCamericanglobalsecurity.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 12 contacts → |
“American Global Security aims to place the bar high for personal protection solutions in California by using advanced methods, acquiring the greatest of expectations for our…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | AAA Protective Security And Consulting Group INCaaaprotectivesecurity.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Securitech Security Services INCsecuritechguards.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Security Consulting Group INCsecurityscg.comHQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 8 contacts → |
“CCTV Sales, CCTV Installation, Security Consultation Services, Armed & Unarmed Uniformed Security Guards, Marked Vehicle Patrol Services, and Virtual Security Guards.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Security Guard Solutions INCsecurityguardsolutionsinc.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 5 contacts → |
“Security Guard Solutions provides our clients with private security services that are customized to meet their security needs and executed to the highest possible standards.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  LOW Ready Protectionlowreadyprotection.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 5 contacts → |
“Low Ready Protection is a Veteran owned organization with over 20 years of industry experience.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Aable Securityaablesecurity.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 3 contacts → |
“Aable Security has been protecting Los Angeles since 1998 with one promise, dependable security you can trust.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Globe Protective Servicesglobeprotective.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“Globe Protective Services is a Los Angeles based security company that was founded by an individual who recognized the increasing need for security services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  American Frontline Guardsafguards.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“American Frontline Guards is a Los Angeles based security guard company.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Next Level Protection Servicesnextlevelprotectionusa.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 1 contacts → |
“Next Level Protection Services is a premier private security company based in Greater Los Angeles, committed to delivering unmatched protection through professionalism, vigilance…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Golden Company Securitygoldencosecurity.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“Our mission at GCS Inc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Guardiance Security Servicesguardiancesecurityservices.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“YOUR PROTECTION OUR PRIORITY Based in Los Angeles, California, Guardiance Security Services is a trusted provider of premium security solutions in Southern California.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Alpha Private Protectionalphaprivateprotection.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“Alpha Private Protection is a leading security firm dedicated to providing exceptional protection and peace of mind to businesses across various industries.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 107 company matches
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Security guard services: dataset insights
September 14, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
107 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 107 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security guard services by metro in the United States
- Security guard services in New York111
- Security guard services in Houston73
- Security guard services in Miami63
- Security guard services in Dallas46
- Security guard services in Chicago43
- Security guard services in Atlanta36
- Security guard services in Austin33
- Security guard services in Phoenix33
- Security guard services in Las Vegas29
- Security guard services in Denver28
Questions about this company list
What does Exact match mean for security guard services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security guard services did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 107 matching company records, 1,604 tracked contacts and 62 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security guard services by geography
- Security guard services based in the United States
- Security guard services based in the United Kingdom
- Security guard services based in Brazil
- Security guard services based in France
- Security guard services based in Canada
- Security guard services based in Germany
- Security guard services based in Italy
- Security guard services based in Australia
- Security guard services based in the Netherlands
- Security guard services based in South Africa
- Security guard services based in Mexico
- Security guard services based in Spain
Cite this list
RevenueBase Data Team. Top 20 security guard services based in Los Angeles, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/security-guard-services/united-states/los-angeles.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security guard services based in the United States
- Security guard services based in the United Kingdom
- Security guard services based in Brazil
- Security guard services based in France
- Security guard services based in Canada
- Security guard services based in Germany
Company intelligence · public preview
Top 20 security guard services based in Los Angeles, United States
RevenueBase records 107 matching company records for security guard services based in Los Angeles, United States, with 1,604 tracked contacts and 62 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 security guard services based in Los Angeles, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Professional Security Consultants, INCpscsite.com HQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 626 contacts → |
“Professional Security Consultants, Inc.(PSC) is a world-class provider of security guard services, patrol, investigations, backgrounds, consulting, security screening & specialty…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Global Security Conceptsgscsecurity.com HQ: Los Angeles, CA, United StatesReported employees: 501-1,000 | Los Angeles, CA, United States | 501-1,000 | Exact match | 102 contacts → |
“A security company committed to serving our clients at the highest level.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ACS Securityacssecurity.com HQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 66 contacts → |
“ACS Security has been serving as the go-to residential and business alarm and patrol service for the West Side of Los Angeles since 1983.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | LAW Security & Investigationslawsecurityinc.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 39 contacts → |
“LSI is a full spectrum security solutions provider that specializes in manpower.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Allied International Securityalliedintsecurity.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 32 contacts → |
“Allied International Security offers armed/unarmed Guards, Patrol Services, CCTV Surveillance for businesses, construction sites, schools, etc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Guardian Eagle Security INCges.net HQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 30 contacts → |
“We provide the foremost in private security guards and patrol services available today.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Aventus Security LLCaventussecurity.com HQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 13 contacts → |
“At Aventus Security, we are more than just a security service provider – we are your partners in safeguarding what matters most.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | American Global Security, INCamericanglobalsecurity.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 12 contacts → |
“American Global Security aims to place the bar high for personal protection solutions in California by using advanced methods, acquiring the greatest of expectations for our…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | AAA Protective Security And Consulting Group INCaaaprotectivesecurity.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 11 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Securitech Security Services INCsecuritechguards.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Security Consulting Group INCsecurityscg.com HQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 8 contacts → |
“CCTV Sales, CCTV Installation, Security Consultation Services, Armed & Unarmed Uniformed Security Guards, Marked Vehicle Patrol Services, and Virtual Security Guards.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Security Guard Solutions INCsecurityguardsolutionsinc.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 5 contacts → |
“Security Guard Solutions provides our clients with private security services that are customized to meet their security needs and executed to the highest possible standards.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | LOW Ready Protectionlowreadyprotection.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 5 contacts → |
“Low Ready Protection is a Veteran owned organization with over 20 years of industry experience.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Aable Securityaablesecurity.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 3 contacts → |
“Aable Security has been protecting Los Angeles since 1998 with one promise, dependable security you can trust.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Globe Protective Servicesglobeprotective.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“Globe Protective Services is a Los Angeles based security company that was founded by an individual who recognized the increasing need for security services.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | American Frontline Guardsafguards.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“American Frontline Guards is a Los Angeles based security guard company.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Next Level Protection Servicesnextlevelprotectionusa.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 1 contacts → |
“Next Level Protection Services is a premier private security company based in Greater Los Angeles, committed to delivering unmatched protection through professionalism, vigilance…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Golden Company Securitygoldencosecurity.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“Our mission at GCS Inc.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Guardiance Security Servicesguardiancesecurityservices.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“YOUR PROTECTION OUR PRIORITY Based in Los Angeles, California, Guardiance Security Services is a trusted provider of premium security solutions in Southern California.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Alpha Private Protectionalphaprivateprotection.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 1 contacts → |
“Alpha Private Protection is a leading security firm dedicated to providing exceptional protection and peace of mind to businesses across various industries.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 107 company matches
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Security guard services: dataset insights
September 14, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
107 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 107 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Security guard services by metro in the United States
- Security guard services in New York111
- Security guard services in Houston73
- Security guard services in Miami63
- Security guard services in Dallas46
- Security guard services in Chicago43
- Security guard services in Atlanta36
- Security guard services in Austin33
- Security guard services in Phoenix33
- Security guard services in Las Vegas29
- Security guard services in Denver28
Questions about this company list
What does Exact match mean for security guard services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many security guard services did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 107 matching company records, 1,604 tracked contacts and 62 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Security guard services by geography
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Cite this list
RevenueBase Data Team. Top 20 security guard services based in Los Angeles, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/security-guard-services/united-states/los-angeles.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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