Top Companies Hiring for Security Manager Jobs

Allied Universal®, North America’s leading security and facility services company, provides rewarding careers that give you a sense of purpose. Since 1957, we have been keeping people safe, protecting our clients' brands, and providing peace of mind.

As The Leader in Protective Services, Securitas USA and its 90,000 employees help organizations of all sizes and markets achieve superior security programs and results. Our security solutions include the Six Pillars of Protective Services, specifically: On-Site, Mobile and Remote Guarding; Electronic Security; Fire & Safety; and Corporate Risk Management. Securitas empowers people, technology and knowledge to advance the profession in general and its clients in particular. Securitas USA consists of 5 geographic regions: Central Atlantic, Northeast, Pacific, North Central, and South. Each region office guides and supports the local branch offices that, in turn, support our officers in the field. Field resources at the local level are integral to Securitas USA's effort as the industry leader to add value by being closer to our clients and to our security officers.

The US Department of the Army has its marching orders. One of the three military departments (along with the Air Force and Navy) of the US Department of Defense, the Army provides ground-based military forces to deter and fight wars and protect the security of the US. The army has more than 675,000 soldiers, including active duty soldiers (nearly 75%) and reservists (Army National Guard and Army Reserves). Army personnel are deployed in about 80 countries. The Army operates about 40 forts throughout the US and has bases in Africa, Europe, Japan, the Middle East, and South Korea.

America’s Navy is the most versatile branch of the military, forging defense on land, in the air, and at sea. With opportunities across the globe and a commitment to serve the greater good, the Navy offers a life of fulfillment, advancement, and innovation to every Sailor.

GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber and application development.

Amazon Web Services (AWS) provides the world’s most comprehensive and broadly adopted cloud platform, offering more than 200 technology services worldwide. Millions of customers—including the fastest-growing startups, largest enterprises, and leading government agencies— rely on AWS to lower costs, become more agile, and innovate faster. Our global scale and rapid pace give you more opportunities to think big, follow your curiosity, and collaborate with a brilliant team. You’ll have the autonomy to pursue bold ideas, and an inclusive team of experts to help turn ideas into real-world innovation.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 48,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.leidos.com.

As the U.S. government's official web portal, USA.gov makes it easy for the public to get U.S. government information and services on the web.

Meta is building the future of human connection and the technology that makes it possible. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and WhatsApp further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology.