MPS Security is a comprehensive security firm, offering physical and asset protection through Executive Protection Agents and Uniformed Security Officers. Our services encompass personal and residential security, event security, industrial and commercial property security, access control, security patrols, loss prevention, and risk management.

MPS Security has developed a team of elite experts over the past five decades focused on cultivating protection services that are unparalleled to industry standards. MPS Security is a multi-service security firm providing physical and asset security using Executive Protection Agents and Uniformed Security Officers for site security, events, residential and commercial properties, access control, security patrols, loss prevention, fraud detection, and undercover officers. 

After five decades of serving in the industry, MPS Security has developed a team of elite experts focused on cultivating protection services that are unparalleled to industry standards. From anywhere in the nation to international territory, there is nowhere you can go without the support & resources MPS Security can provide. MPS holds licenses in CA & NV, with strategic partnerships worldwide. Our corporate headquarters is located in the heart of the industrial hub of the Inland Empire in Riverside County in Murrieta, CA, with offices in Los Angeles and Las Vegas.

Established in 1967

MPS Security, a division of National Business Investigations, Inc. (NBI), is a multi-service security firm providing physical and asset security using Uniformed Security Officers and Executive Protection Agents for site security, events, residential and commercial properties, access control, security patrols, loss prevention, fraud detection and undercover officers.  

In 1967, Ron Julian, a Navy veteran and former law enforcement officer, opened the first office of National Business Investigations in Fullerton, California providing general investigative and protective services.

30 years later, when Ron’s son Michael ascended into the leadership of NBI, he created a separate division specifically focused on protection, security, and risk mitigation services. MPS Protection & Security (MPS) was born and continued to grow in the following three decades becoming the highest revenue earning sector of the organization.

Now in the 21st Century, MPS serves clients throughout the United States, including Fortune 100 companies, protecting their executives, assets, and reputation by providing a level of service derived from, and managed by, over 50 years of experience.

Risk Mitigation & Management, Executive Protection, Armed Security, Residential Security, Estate Security, Corporate Security, Uniformed Security, Investigations.