Choosing the right security guard company can make all the difference in your business. A professional, dependable staff is essential to making sure your employees and customers feel safe and secure on a daily basis. If you’re looking for top-quality security guard companies in California, look no further than these 10 companies!

1. SoCal Protective Services

SoCal Protective Services has locations in Los Angeles, Orange County, Riverside and San Bernardino counties. The company is open Monday through Friday from 8:00 a.m. to 5:00 p.m., and on Saturday from 9:00 a.m. to 1:00 p.m., excluding holidays.SoCal Protective Services provides security guard services for businesses and private residences in Southern California including Los Angeles County; Orange County; Riverside County; San Bernardino County as well as other areas of Southern California!

2. Secure Site Services

Secure Site Services is a leading provider of security guard services in California. The company provides a wide range of security services to businesses and homes, as well as special events. Operating out of Ventura, CA, Secure Site Services offers clients a variety of options when it comes to choosing the right security guard service for your needs. The company’s team includes licensed peace officers who specialize in patrol services, parking enforcement and traffic control (including DUI checkpoints), crowd control at special events such as concerts or sporting events and more!

3. Security Consultants Inc.

Offering robust security guard services in Ventura, Security Consultants Inc. has been providing security guard services for over 20 years. They provide a full range of security guard services including armed and unarmed guards, key holding and mobile patrol units. Their company specializes in armed and unarmed security guards, private investigations, surveillance systems and executive protection services as well. They have a 24/7 response capability to client needs that covers all the needs of the client including any after hour emergencies that may arise during your business hours or on weekends!

4. Guardian Private Protection

If you’re looking for a professional security guard company in California, look no further than Guardian Private Protection. This family owned and operated business has been in the security industry for over 30 years, providing its clients with top-quality service every time.Guardian Private Protection is a licensed and insured company that offers a wide range of security services to residential and commercial clients.

5. Unifire Protection Services

Unifire Protection Services is a full-service security company that offers armed and unarmed guards. They provide security guard services in California, Washington, Oregon and Nevada. The company has been in business since 1994.Unifire Protection Services employs highly trained and experienced security professionals who have undergone extensive background checks to ensure they have no criminal history or other disqualifying factors that would prevent them from working as a guard. Guards are also trained on how to handle emergency situations such as fire drills or active shooter scenarios so that they can act with professionalism when dealing with clients’ employees who are upset about being evacuated from their work environment.

6. Advanced Security Systems, Inc.

Advanced Security Systems, Inc. is a full-service security guard company based in Ventura, California. The company provides security guard services to clients throughout the state of California and has been in business for over 30 years.Advanced Security Systems, Inc. offers round-the-clock protection through its patrol and roving services, as well as its mobile response team.

7. Valley Wide Security Services

Valley Wide Security Services has a good reputation in the industry, and for good reason. It’s been in business for over 30 years, and has an impressive 6,000+ customers—including big names like Costco and Kaiser Permanente. The company offers professional security services including guard services and training for guards. More importantly than its size or longevity though is the fact that Valley Wide provides quality service to each of its clients. Employees are well versed on how to handle any situation professionally so as to minimize any risks posed by their presence on site.

8. Alliance Protective Services, Inc.

Alliance Protective Services, Inc. is a full-service security company that provides armed and unarmed guards for businesses and homes in the Los Angeles area. They have a fleet of vehicles that can help them get to your location quickly. They also have an in-house dispatch centre, in which they can communicate with their clients when there are any issues or emergencies on site. Their training facility allows them to train all of their guards before they go out into the field, so that you know that your guard is fully prepared for any situation he may encounter while working for you. In addition, they even have 24/7 emergency response teams who can assist you if need be during working hours or after hours (even holidays)!

9. Pacific Coast Security, Inc.

Pacific Coast Security, Inc. is one of the most recognized names in the security industry. Since its founding in 1989, Pacific Coast has grown to become one of the largest privately held security companies in California and other states across the nation. They have over 500 employees and provide services at over 200 locations. Their goal is to provide high-value property protection by protecting businesses from vandalism or theft through their 24/7 operations.The company specializes in armed and unarmed security guards as well as canine patrol teams for sensitive areas such as warehouses, manufacturing facilities and retail stores where there may be large amounts of merchandise that needs protecting against theft or damage (such as electronics).

10. United Guard Service, Inc.

United Guard Service, Inc. is a full-service security company serving the Southern California area for more than 30 years. The company’s management team and staff are dedicated to providing clients with top-quality customer service in all aspects of their business and personal lives.United Guard Service, Inc. is a member of the International Association of Security and Investigative Regulators (IASIR), which supports professional standards within the private investigation industry.


We hope that this list of the best professional security guard companies in California has helped you to find the right one for your needs. If you have any questions about our top picks or would like some advice on choosing a company, we would be happy to assist!