Allied Universal is a leading security and facility services company headquartered in Irvine, California. The company was founded in 1957 and has grown through strategic mergers, including the 2016 combination of AlliedBarton and Universal Services of America. Allied Universal delivers a wide range of services, including security guard staffing, risk advisory, technology solutions, and integrated facility management. Its offerings extend to access control, video surveillance, and emergency response planning, serving clients across multiple industries such as healthcare, education, and critical infrastructure. The company operates globally, maintaining a strong presence in North America and expanding into international markets. Allied Universal is privately held and continues to invest in technology-driven security solutions to enhance operational efficiency and client safety.