Best Security Companies in Los Angeles: A 2026 Buyer's Guide
Los Angeles has more than 2,000 licensed private security firms, which makes comparing them by more than a Google search result genuinely difficult. This guide ranks six companies actively serving the LA commercial market, evaluated against the same criteria: PPO licensing, years in operation, insurance coverage, service breadth, and pricing transparency.
How We Evaluated Each Company
- PPO licensing — Verified through the California Bureau of Security and Investigative Services (BSIS)
- Years in operation — Longer-tenured firms typically have more refined post orders and lower guard turnover
- Insurance coverage — General liability coverage protects clients if an incident occurs on-site
- Service breadth — Whether the firm covers your specific property type and risk profile
- Pricing transparency — Whether you can get real numbers without a sales call
1. Aable Security
Best for: Property managers and businesses who want pricing transparency and direct accountability.
Aable Security holds PPO License #13693 and has operated in Los Angeles since 1998 — 27+ years serving armed guards, unarmed guards, event security, mobile patrol, residential/HOA, and executive protection clients, backed by $2M in general liability insurance. What sets Aable apart from most of the firms on this list is pricing transparency: a free Security Cost Estimator and Security Risk Assessment tool let property managers get real numbers before ever talking to a salesperson — most competitors keep pricing behind a contact form.
2. American Global Security
Best for: Businesses needing coverage across a wide range of property types.
American Global Security is a Los Angeles-based firm with roughly 25+ years in the market, offering armed and unarmed guards, mobile patrol, fire watch, and executive protection. Its notable strength is breadth: AGS covers everything from retail and corporate offices to warehouses, healthcare facilities, cannabis dispensaries, schools, and religious institutions — a wider vertical spread than most mid-size LA firms.
3. Guardian Integrated Security
Best for: Properties that want guards and camera technology under one contract.
Founded in 2008 and holding CA License #976737, Guardian Integrated Security stands out for combining unarmed guards with live video monitoring, AI-powered cameras, and CCTV under a single PPO license — most competitors offer guards or technology, not both integrated. It holds a 4.9-star rating across 58+ reviews and serves a broad Southern California territory, though it does not offer armed guard services.
4. Safety Host Unit
Best for: High-end corporate events and entertainment-industry productions.
Operating under PPO #120547 from Beverly Hills and Downtown LA, Safety Host Unit specializes in premium event security — red carpets, awards season, and entertainment productions — with commercial clients including Universal Music Group, Adobe, and TIDE. It's a strong fit for luxury or entertainment-facing events, though it isn't positioned as a general commercial guarding provider for day-to-day office or retail coverage.
5. Securitas
Best for: Large enterprises needing standardized security programs across many locations.
Securitas is a global security provider founded in Sweden in 1934, with roughly 320,000+ employees operating in over 40 countries. Its scale and technology integration make it a fit for national or multi-site enterprise accounts, though that same scale typically means less local customization and a slower, more corporate sales process than a regionally based provider.
6. Allied Universal
Best for: Enterprises that want the largest possible provider with nationwide standardized coverage.
Formed in 2016 through the merger of AlliedBarton and Universal Protection Service (with roots tracing back to 1957 and 1965, respectively), Allied Universal is North America's largest security and facility services company, with several hundred thousand employees across the continent. It's built for standardized, large-scale enterprise deployments — smaller commercial properties or property managers looking for a dedicated, responsive account contact often find more direct attention with a regionally based firm.
Frequently Asked Questions
How do I verify a security company's PPO license in California?
Every legitimate security guard company operating in California must hold a Private Patrol Operator (PPO) license issued by the Bureau of Security and Investigative Services (BSIS). You can verify any company's license number directly on the BSIS website before signing a contract.
What should I ask a security company before hiring them?
Ask for their PPO license number, proof of general liability insurance, how guards are supervised, whether pricing is published or requires a sales call, and whether they have direct experience in your specific industry or property type.
Is a bigger, national security company always the better choice?
Not necessarily. National providers offer scale and standardization across many locations, which suits large multi-site enterprises. Locally based, longer-tenured companies often provide more direct accountability, faster response, and more customized coverage for single-property or regional needs.