Company lists · Data refreshed September 2026
Top 22 Homeland security contractors based in Los Angeles, United States
RevenueBase identified 58 company matches for homeland security contractors associated with Los Angeles, United States as of September 2026 and tracks 1,272 professional contacts across them, including 120 with verified work emails. Across the United States, New York is the largest hub for this category (96 companies); Los Angeles has 58.
This list covers company matches for homeland security contractors 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 28, 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 22 largest homeland security contractors 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 28, 2026 · View company records in RevenueBase | |||||
| 2 | 126 contacts → | ||||
Exact match “Resecurity is an American company with headquarters in Los Angeles, California.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 91 contacts → | ||||
Exact match “Black Box Security Inc.” Recorded in the RevenueBase company graph · Sep 28, 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 28, 2026 · View company records in RevenueBase | |||||
| 5 | 30 contacts → | ||||
Exact match “We provide the foremost in private security guards and patrol services available today.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 16 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase | |||||
| 9 | 12 contacts → | ||||
Exact match “At The Resiliency Initiative (TRI), we’re more than consultants; we’re partners in helping communities and organizations thrive through crisis.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Mancini International is a corporate security company with a 30+ year track record of providing security for executives, heads of state, and corporate assets in 48 countries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “DUSTWUN provides comprehensive bespoke security solutions for individuals and organizations around the globe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 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 28, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “Founded by ex-Israeli Police Special Forces Officer, ITAC provides specialty security services and tactical training.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match “QuinnWilliams, LLC specializes in homeland security and emergency planning for public and private sector organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “Triad Consulting was formed by long-time industry professionals with proven track records of excellence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 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 28, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “PreijersMak, LLC (“PM”) provides crisis management and mitigation services to businesses in all sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “US Armor Group’s Executive Team’s background include former Elite Military Special Operation and Law Enforcement Special Unit members, giving us the ability to address the threats…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 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 28, 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 28, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “Strategic advisory services, risk assessments, physical protection, threat intelligence and training services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 1 contacts → | ||||
Exact match “Tandem Solutions provides consultation services to public and private institutions.” Recorded in the RevenueBase company graph · Sep 28, 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 “homeland security contractors”. 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 22 of 58 homeland security contractors based in Los Angeles, United States
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Homeland security contractors based in Los Angeles, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 58 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 “homeland security contractors” 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 120 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 28, 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.
Homeland security contractors by metro in the United States
- Homeland security contractors in New York96
- Homeland security contractors in Houston64
- Homeland security contractors in Washington56
- Homeland security contractors in Miami55
- Homeland security contractors in Atlanta47
- Homeland security contractors in Chicago43
- Homeland security contractors in Dallas36
- Homeland security contractors in Arlington31
- Homeland security contractors in Austin28
- Homeland security contractors in Denver28
- Homeland security contractors in Las Vegas27
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 “homeland security contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many homeland security contractors are there based in Los Angeles, United States?
RevenueBase identified 58 company matches for homeland security contractors 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 homeland security contractors?
New York leads the United States with 96 company records, followed by Houston (64) and Los Angeles (58).
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 120 professional contacts with verified work emails tracked across these 58 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 58 homeland security contractors based in Los Angeles, United States. Start with a free account, no credit card.
Download this list →Related lists
Homeland security contractors by geography
- Homeland security contractors based in Melbourne, Australia
- Homeland security contractors based in Sydney, Australia
- Homeland security contractors based in Sao Paulo, Brazil
- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany
- Homeland security contractors based in Dubai, United Arab Emirates
- Homeland security contractors based in London, United Kingdom
- Homeland security contractors based in Arlington, United States
- Homeland security contractors based in Atlanta, United States
- Homeland security contractors based in Austin, United States
- Homeland security contractors based in Chicago, United States
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Homeland security contractors based in Melbourne, Australia
- Homeland security contractors based in Sydney, Australia
- Homeland security contractors based in Sao Paulo, Brazil
- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany
Company intelligence · public preview
Top 22 homeland security contractors 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 58 matching company records for homeland security contractors based in Los Angeles, United States, with 1,272 tracked contacts and 120 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 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 22 homeland security contractors 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Resecurityresecurity.comHQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 126 contacts → |
“Resecurity is an American company with headquarters in Los Angeles, California.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Black BOX Security, INCbbxsecurity.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 91 contacts → |
“Black Box Security Inc.” Recorded description excerpt · September 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Franklin Global, INCfranklinglobal.netHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 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 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  The Resiliency Initiativetheresiliencyinitiative.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 12 contacts → |
“At The Resiliency Initiative (TRI), we’re more than consultants; we’re partners in helping communities and organizations thrive through crisis.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Mancini International, INCmancini-intl.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 7 contacts → |
“Mancini International is a corporate security company with a 30+ year track record of providing security for executives, heads of state, and corporate assets in 48 countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Dustwundustwun.coHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 7 contacts → |
“DUSTWUN provides comprehensive bespoke security solutions for individuals and organizations around the globe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Itac Securityitac-security.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 5 contacts → |
“Founded by ex-Israeli Police Special Forces Officer, ITAC provides specialty security services and tactical training.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Quinnwilliams, LLCquinnwilliams.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 3 contacts → |
“QuinnWilliams, LLC specializes in homeland security and emergency planning for public and private sector organizations.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Triad Consulting & System Design Grouptriadsdg.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“Triad Consulting was formed by long-time industry professionals with proven track records of excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Preijersmak, LLCpreijersmak.com HQ: Los Angeles, United StatesReported employees: 1-10 | Los Angeles, United States | 1-10 | Exact match | 2 contacts → |
“PreijersMak, LLC (“PM”) provides crisis management and mitigation services to businesses in all sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  US Armor Groupusarmorgroup.comHQ: Los Angeles, United StatesReported employees: 11-50 | Los Angeles, United States | 11-50 | Exact match | 2 contacts → |
“US Armor Group’s Executive Team’s background include former Elite Military Special Operation and Law Enforcement Special Unit members, giving us the ability to address the threats…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  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 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Chegan SRMchegansrm.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 1 contacts → |
“Strategic advisory services, risk assessments, physical protection, threat intelligence and training services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Tandem Solutionstandemsolutionsusa.comHQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 1 contacts → |
“Tandem Solutions provides consultation services to public and private institutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 58 company matches
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Homeland security contractors: dataset insights
September 28, 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
58 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 58 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 28, 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 ↗
Homeland security contractors by metro in the United States
- Homeland security contractors in New York96
- Homeland security contractors in Houston64
- Homeland security contractors in Washington56
- Homeland security contractors in Miami55
- Homeland security contractors in Atlanta47
- Homeland security contractors in Chicago43
- Homeland security contractors in Dallas36
- Homeland security contractors in Arlington31
- Homeland security contractors in Austin28
- Homeland security contractors in Denver28
- Homeland security contractors in Las Vegas27
Questions about this company list
What does Exact match mean for homeland security contractors?
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 homeland security contractors did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 58 matching company records, 1,272 tracked contacts and 120 verified emails. The public preview displays 22 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 28, 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
Homeland security contractors by geography
- Homeland security contractors based in Melbourne, Australia
- Homeland security contractors based in Sydney, Australia
- Homeland security contractors based in Sao Paulo, Brazil
- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany
- Homeland security contractors based in Dubai, United Arab Emirates
- Homeland security contractors based in London, United Kingdom
- Homeland security contractors based in Arlington, United States
- Homeland security contractors based in Atlanta, United States
- Homeland security contractors based in Austin, United States
- Homeland security contractors based in Chicago, United States
Cite this list
RevenueBase Data Team. Top 22 homeland security contractors based in Los Angeles, United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/homeland-security-contractors/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
- Homeland security contractors based in Melbourne, Australia
- Homeland security contractors based in Sydney, Australia
- Homeland security contractors based in Sao Paulo, Brazil
- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany
Company intelligence · public preview
Top 22 homeland security contractors based in Los Angeles, United States
RevenueBase records 58 matching company records for homeland security contractors based in Los Angeles, United States, with 1,272 tracked contacts and 120 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 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 22 homeland security contractors 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Resecurityresecurity.com HQ: Los Angeles, CA, United StatesReported employees: 201-500 | Los Angeles, CA, United States | 201-500 | Exact match | 126 contacts → |
“Resecurity is an American company with headquarters in Los Angeles, California.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Black BOX Security, INCbbxsecurity.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 91 contacts → |
“Black Box Security Inc.” Recorded description excerpt · September 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Franklin Global, INCfranklinglobal.net HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 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 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Resiliency Initiativetheresiliencyinitiative.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 12 contacts → |
“At The Resiliency Initiative (TRI), we’re more than consultants; we’re partners in helping communities and organizations thrive through crisis.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Mancini International, INCmancini-intl.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 7 contacts → |
“Mancini International is a corporate security company with a 30+ year track record of providing security for executives, heads of state, and corporate assets in 48 countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dustwundustwun.co HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 7 contacts → |
“DUSTWUN provides comprehensive bespoke security solutions for individuals and organizations around the globe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Itac Securityitac-security.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 5 contacts → |
“Founded by ex-Israeli Police Special Forces Officer, ITAC provides specialty security services and tactical training.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Quinnwilliams, LLCquinnwilliams.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 3 contacts → |
“QuinnWilliams, LLC specializes in homeland security and emergency planning for public and private sector organizations.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Triad Consulting & System Design Grouptriadsdg.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 2 contacts → |
“Triad Consulting was formed by long-time industry professionals with proven track records of excellence.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Preijersmak, LLCpreijersmak.com HQ: Los Angeles, United StatesReported employees: 1-10 | Los Angeles, United States | 1-10 | Exact match | 2 contacts → |
“PreijersMak, LLC (“PM”) provides crisis management and mitigation services to businesses in all sectors.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | US Armor Groupusarmorgroup.com HQ: Los Angeles, United StatesReported employees: 11-50 | Los Angeles, United States | 11-50 | Exact match | 2 contacts → |
“US Armor Group’s Executive Team’s background include former Elite Military Special Operation and Law Enforcement Special Unit members, giving us the ability to address the threats…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 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 28, 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 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Chegan SRMchegansrm.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 1 contacts → |
“Strategic advisory services, risk assessments, physical protection, threat intelligence and training services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Tandem Solutionstandemsolutionsusa.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 1 contacts → |
“Tandem Solutions provides consultation services to public and private institutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 22 of 58 company matches
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Homeland security contractors: dataset insights
September 28, 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
58 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 58 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 28, 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 ↗
Homeland security contractors by metro in the United States
- Homeland security contractors in New York96
- Homeland security contractors in Houston64
- Homeland security contractors in Washington56
- Homeland security contractors in Miami55
- Homeland security contractors in Atlanta47
- Homeland security contractors in Chicago43
- Homeland security contractors in Dallas36
- Homeland security contractors in Arlington31
- Homeland security contractors in Austin28
- Homeland security contractors in Denver28
- Homeland security contractors in Las Vegas27
Questions about this company list
What does Exact match mean for homeland security contractors?
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 homeland security contractors did RevenueBase find based in Los Angeles, United States?
The saved snapshot records 58 matching company records, 1,272 tracked contacts and 120 verified emails. The public preview displays 22 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 28, 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
Homeland security contractors by geography
- Homeland security contractors based in Melbourne, Australia
- Homeland security contractors based in Sydney, Australia
- Homeland security contractors based in Sao Paulo, Brazil
- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany
- Homeland security contractors based in Dubai, United Arab Emirates
- Homeland security contractors based in London, United Kingdom
- Homeland security contractors based in Arlington, United States
- Homeland security contractors based in Atlanta, United States
- Homeland security contractors based in Austin, United States
- Homeland security contractors based in Chicago, United States
Cite this list
RevenueBase Data Team. Top 22 homeland security contractors based in Los Angeles, United States. Snapshot: September 28, 2026. https://revenuebase.ai/companies/homeland-security-contractors/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
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- Homeland security contractors based in Melbourne, Australia
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- Homeland security contractors based in Toronto, Canada
- Homeland security contractors based in Paris, France
- Homeland security contractors based in Berlin, Germany