Top 10 Security Guard Companies in Los Angeles

Who wins which category in Los Angeles

No single provider is best at everything, and a comparison that says otherwise is not worth reading. Several rows below go to companies other than us, because for that specific requirement they are genuinely the better call.

What makes the Los Angeles security market different

Los Angeles has more licensed security companies than any other market in California, and the range inside that list is enormous. The same search returns a 400,000-officer multinational and a two-person operation working out of a car, both technically licensed, both bidding on your lobby post. The state licence is a floor, not a ranking.

What actually separates providers here is geography and decision speed. Los Angeles County is 4,750 square miles of freeway. A company dispatching your Vernon warehouse post from an office in Orange County is not covering you the way a company already running officers on the 110 corridor is, no matter what the website says. Ask where the nearest supervisor physically sits and how long the drive is at 4pm.

The second separator is contract structure. Much of the LA market still writes 12-month minimums with 30-day cancellation windows, which means a bad fit costs you most of a year. Month-to-month terms shift that risk back to the provider, and providers who are confident in their retention offer them.

Below, ten companies that serve Los Angeles, what each is genuinely best at, and the licence number for every one we could verify. Four of the ten beat us at something specific, and those rows say so.

The 10 best security guard companies in Los Angeles

Every licence number below is published by the company itself and can be checked at the California BSIS licence lookup. Where we could not verify a licence number we have left it out rather than guess. Each entry names the category that company genuinely wins.

1. 1

   Safety Zone Security, Inc.

   Best for: Same-day coverage anywhere in LA County with a local decision-maker

   Licence:

   BSIS PPO #15063

   Footprint:

   Statewide California; corporate office in Harbor City, plus San Jose, Sacramento and San Diego

   Licensed since 2004. The five-digit PPO number is worth noticing — most companies competing for LA work today hold numbers in the 120,000–122,000 range, meaning licences issued in the last few years. Unarmed and armed officers, GPS-verified vehicle patrol, a command center staffed around the clock, and month-to-month agreements with no long-term contract. Named accounts include Chick-fil-A, CBRE, Hilton, Aldi, Floor & Decor and Brown West Logistics.

2. 2

   Allied Universal

   Best for: Fortune 500 master-vendor programs and integrated tech plus manned guarding

   Footprint:

   Headquartered at 450 Exchange, Irvine CA; approximately 800,000 employees, 127,000+ client sites, 90+ countries

   Formed in 2016 from AlliedBarton (founded 1957) and Universal Services of America of Santa Ana. It publishes that it serves more than 400 Fortune 500 companies. If you are running a national procurement process with a single-vendor mandate, integrated access control, and enterprise SLAs, this is the scale that requirement is written for. No regional operator competes with it on that, and we do not pretend to.

3. 3

   SECURICO

   Best for: Multi-state portfolios that need one contract and one invoice

   Footprint:

   All 50 states — nationwide licensed guard coverage under a single contract

   The right answer when Los Angeles is one location out of many and the others are outside California. Rather than managing a different regional vendor in each state, SECURICO covers the whole footprint under a single agreement with consistent post orders and reporting. If your portfolio is entirely inside California, a California operator will serve you better.

4. 4

   Securitas

   Best for: Multinationals that need one security standard across countries

   Footprint:

   Global; substantial Los Angeles operation

   Markets technology-integrated security to the Los Angeles market and brings the same programme structure to sites on different continents. If your LA office has to match a security specification written in Europe or Asia, that consistency is the product you are buying.

5. 5

   OnGuard Security Services

   Best for: Large single-site deployments needing many officers at once

   Licence:

   PPO #121717

   Footprint:

   Los Angeles and Orange County

   Publishes 600+ BSIS-licensed guards, $1.5M insurance and 20+ years in the market. That bench matters for the job nobody likes to quote: forty officers for a stadium event or a sudden multi-post ramp-up. A deep local roster is a real capability, not a marketing line.

6. 6

   Guardian Integrated Security

   Best for: Alarm monitoring and guard response under one vendor

   Licence:

   PPO #121089 and ACO #7501

   Footprint:

   Los Angeles

   Holds both a Private Patrol Operator licence and an Alarm Company Operator licence — a genuinely different capability from a guard-only PPO. If you want the company monitoring your alarm to also be the company that responds to it, that dual licensing is the reason to call them, and it is something we do not hold.

7. 7

   Security Guard Pros

   Best for: Businesses wanting one vendor across several Southern California counties

   Licence:

   PPO #120266

   Footprint:

   Los Angeles, Orange County, San Bernardino County, San Diego

   Publishes 20+ years in operation and more than 3,000 businesses served, with a service map that spans most of Southern California. Useful if your sites are scattered from Carson to Hesperia and you would rather not manage four separate contracts.

8. 8

   Apollo Protection Agency

   Best for: Westside and Culver City media and office properties

   Footprint:

   400 Corporate Pointe #300, Culver City CA

   Based on the Westside rather than dispatching into it, which shortens the response drive for Culver City, Playa Vista and the surrounding studio and office corridor.

9. 9

   American Guard Services

   Best for: Aviation, maritime and transport-adjacent facilities

   Footprint:

   California statewide

   A long-established California operator with a footprint built around transport infrastructure. Worth a call if your site sits inside an airport, port or rail environment where the access rules are set by the facility rather than by you.

10. 10

    Cypress Private Security

    Best for: Public agencies, transit and homeless-services environments

    Footprint:

    California statewide, with a strong Northern and Southern California presence

    Known for public-sector and transit contracts, where the work involves de-escalation and public interaction far more than access control. Different discipline from commercial guarding, and a real specialism.

Where our nearest officers actually work from

Our corporate office is at 24328 S Vermont Ave, Suite 302, Harbor City CA 90710 — on the 110 corridor in the South Bay, roughly 20 miles from Downtown Los Angeles. Officers, supervisors and marked patrol vehicles work out of that office daily, and the command center that dispatches them is staffed 24 hours. For the Valley and the far east county the drive is longer, and we will tell you the honest number before you sign rather than after.

How to check a Los Angeles security company before you sign

Four checks, none of which take more than a few minutes, and any provider worth hiring will answer all of them without hesitating.

1. Verify the PPO licence. Contract security in California requires a Private Patrol Operator licence from the Bureau of Security and Investigative Services, part of the Department of Consumer Affairs. Look the number up at search.dca.ca.gov. If the company is not there with an active licence, it cannot legally do the work.
2. Check the officers, not just the company. Each officer needs a current BSIS guard card: 8 hours of training before registration — 3 hours of Power to Arrest and 5 of Appropriate Use of Force — then 32 more hours within six months, 16 of them in the first 30 days, plus 8 hours of continuing training every year. Armed officers need a separate BSIS exposed-firearm permit; a guard card alone never authorises a weapon.
3. Ask where the nearest supervisor sits. Not the head office — the person who will physically visit your post. Then ask how often they visit and whether those visits are documented. Supervision frequency predicts whether a post is still good in month four.
4. Read a real daily activity report before you sign. Ask for a redacted sample from a comparable site. If patrol rounds are not timestamped and GPS-verified, you have no way to confirm the coverage you are paying for actually happened.

Rankings for nearby cities

• Top 10 security guard companies in Vernon
• Top 10 security guard companies in Commerce
• Top 10 security guard companies in City of Industry
• Top 10 security guard companies in Carson
• Top 10 security guard companies in Pomona
• Top 10 security guard companies in San Jose