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Post Alarm and Peninsula Security Merge

Post Alarm and Peninsula Security Merge

Post Alarm and Peninsula Security Merge, Bringing Unprecedented Local Security Coverage to Southern California

LOS ANGELES, CA - Post Alarm, a leading provider of residential and commercial security services in the Greater Los Angeles area, has announced its merger with Peninsula Security, which provides comparable services in the neighboring South Bay Area and Palos Verdes Peninsula.

The Post Alarm and Peninsula Security merger is a natural fit. It brings together two locally owned and operated companies deeply rooted in their communities, both committed to safeguarding homes and businesses for decades. By joining forces, they enhance their presence in Southern California, offering unparalleled local service while upholding the trusted legacies and a dedication to excellence and reliability.

Post Alarm was founded in 1956 by Sam Post after his retirement as a police chief. Sixty-eight years and three generations later, the company is owned and operated by his grandchildren, Robert Post and Gina Post-Franco. Today, it is one of the largest security companies in Southern California, with over 125 team members. The Post Family has lived in and been part of the San Pedro community for over 25 years. Post Alarm offers alarm and video monitoring, Armed Alarm Response, and Patrol, among many other services. Post is one of the only Southern California companies that offers in-house design, installation, monitoring, servicing, and rapid response capabilities. The hub of its operations is its award-winning and UL-listed, owned and operated monitoring and dispatch facility that enables swift and decisive actions to alarm events and patrol dispatches.

"We own and operate our central station, meaning that any triggered alarm comes to our facility in Los Angeles - not a call center in another country or remote area in the US. Our facility is certified as one of the top 5% in the country. We have top-of-the-line software and hardware – and highly trained security experts, which enables us to provide superior response time. We know that this makes a difference for our customers, and we are very happy to now offer these benefits to new and existing Peninsula customers" – ROB POST

Peninsula Security was established in 1984 by lifelong South Bay resident Mark Rosenfeld after six years of service in the alarm industry. Mark, who continues to lead as President, embodies a hands-on approach guiding the company through four decades of exponential organic growth and expansion across the South Bay and Palos Verdes Peninsula. Renowned for its unparalleled concierge service, quality workmanship, and complete and customized security solutions, Peninsula Security has built a legacy of excellence customers have come to know and trust.

"We are excited about this partnership – our shared values, including commitment to excellent service and continued improvement, make us a natural fit. When we saw Post Alarm's impressive infrastructure and eye towards innovation – we knew this would help enhance our service offerings." – MARK ROSENFELD

The partnership leverages both companies' combined experience and resources to provide customers with comprehensive security solutions and expanded service offerings. This includes offering enhanced security services to the South Bay, including Armed Alarm Response and Patrol Services and Night Shield® Video Services, Post Alarm's proprietary remote video monitoring service. It will also centralize monitoring operations at Post Alarm's owned and operated central station, providing customers with fast response from local monitoring agents.

"We are excited about the tremendous opportunity this merger brings to provide enhanced services to our current and future customers. We will continue to provide no-cost consultations to help every customer find peace of mind through security solutions customized for their homes, families, and lifestyles." – GINA POST-FRANCO

Both companies are enthusiastic about this collaboration, which provides an exciting foundation for continued growth and promise to provide the most advanced and reliable security solutions to the communities the Post family and Mark Rosenfeld call home.



Established in 1984, Peninsula Security, under the leadership of Mark Rosenfeld, has earned a reputation as a trusted security provider in the South Bay. Rosenfeld's commitment to traditional business values permeates its approach, ensuring personalized care for every client's security needs. Peninsula offers high-quality security, video, and fire systems tailored to each client's lifestyle, installed and serviced by in-house technicians. While upholding traditional values, clients can also benefit from cutting-edge home automation options. The Peninsula Security staff ensures clients receive concierge support, prioritizing long-term satisfaction. Peninsula Security is proud to deliver reliable results, reflecting its unwavering commitment to excellence.



Founded over 60 years ago, Post Alarm, led by 3rd generation owners Rob Post and Gina Post-Franco, delivers superior security services across Los Angeles, from the San Fernando Valley to Orange County. With a commitment to innovation and core values, Post Alarm boasts over 125 team members dedicated to maintaining exceptional client service. Operating a proprietary 5-diamond certified central call station, Post Alarm offers award-winning security services, ensuring superior response times. Post Alarm offers cutting-edge security technology like Night Shield®, providing live monitoring by experts to swiftly detect and deter threats, leading to faster response times and thwarting criminal activities.