Comprehensive Security Programs

Our tailored security services include uniformed guards, loss prevention, executive protection, due diligence, undercover and background checks, remote monitoring and mobile solutions, as well as threat assessment and corporate training programs.

Strength and Scale

  • Founded in 1959
  • 15+ office locations nationwide

  • 4 service lines

  • Decades of experience designing security and investigative solutions
  • Thousands of security officers, loss prevention agents, executive protection, and field investigation professionals and growing

Customized Security Programs

American Security has been specializing in security programming for decades. Our customized security solutions are multifaceted to respond to each individual clients’ needs. We combine the experience of skilled and industry-specific trained security officers with the innovation of industry-leading technology solutions. As a wholly owned subsidiary of Marsden Holding, American Security leverages the strength and resources of Marsden’s national presence. The result is a comprehensive safety and security program that is managed and led by local stakeholders.

One of the most important aspects of building operations is maintaining a safe and secure environment for employees, tenants and guests. Securing a facility is a complex task that involves more than simply responding to threats. Our customized program design process includes incorporating trained, onsite security officers with field support personnel, exploring video, access, and remote guarding technologies to layer resources, and understanding site risk management and emergency preparedness plans.

UNIFORMED GUARDS

American Security provides clients with skilled and experienced security officers, loss prevention specialists, and executive protection agents. Through our proprietary training programs and sophisticated support structures, we ensure our teams lead the industry in professionalism and expertise.

INVESTIGATIONS

We handle all kinds of due diligence investigations, asset searches, corporate due diligence, and other investigative projects. Our experienced field investigators follow proper procedures and always comply with court-approved activities, ensuring they respect privacy laws.

TECHNOLOGY

We provide proactive, cost-effective security surveillance through our innovative remote guarding and mobile applications. Our technology solutions deliver a flexible, scalable infrastructure that allows clients to feel secure at all times.

SECURITY CONSULTING

Security starts with understanding risk. Our subject matter experts partner with our clients’ internal stakeholders to provide corporate training options to include: CPR/AED/First Aid, Emergency Procedures and Tenant Warden Training, Facility Risk Assessments, Workplace Violence Workshops and more.

American Security

AMERICAN SECURITY AWARDED INCLUSION ONTO FEDERAL GSA SUPPLY SCHEDULES

American Security has recently been awarded inclusion onto the Federal Government’s GSA Schedules Program. Providing security services through the GSA Schedule not only enhances American Security’s offerings, it benefits all of our customers through an increased number of highly trained Security Officers readily available, across greater regions and territories served.

Recent News

  • Marsden Hires Ewan Stewart as President of Mechanical Services
    on October 6, 2025

    Marsden Services is pleased to welcome Ewan Stewart as the President of Mechanical Services. Ewan will be responsible for the ongoing operations of Marsden’s mechanical services operations, which include HVAC, plumbing, and electrical services. “Ewan is going to be an incredible asset to our team,” said Guy Mingo, President and Chief Executive Officer of Marsden [...]