About Us

The founder of Diamond Group Security, Jeff Leverence, brings decades of knowledge in the on-site security industry.

Why Diamond Group is unique

In early 2009, Jeff knew there had to be a better way for construction clients to find competent, private security officer patrol services for projects across the U.S. He developed a company named Diamond Group Security by assembling a group of over 1,000 national, private, “diamond quality” security officer firms that could service his nationwide client base. Clients, who once called “mom and pop” private security patrol firms who have officers calling in sick and sleeping on the job in broken down patrol cars, quickly found Diamond Group’s customized selection service to be the most reliable deterrent to crimes.

The value brought by Diamond Group

Diamond Group offers a screening service of their national, proprietary database of diamond-quality security firms. Saving clients time and money, Diamond Group is a single point of contact to access numerous security firm options, hand-selected for each client’s job site to monitor day-to-day security patrol activities. 

Single Point of Contact

Either day-to-day or when there’s a security breach, Diamond Group offers a one-point-of-contact, 24/7 customer rapid resolution service. When minutes matter, you can feel confident knowing that one call initiates the response you need.

Trusted by some of the nation’s largest builders

Today, the largest construction firms in the nation trust Diamond Group to handle the mobilization and contracting of security patrol services of leading organizations that include:

• BP Energy Oil Pipelines
• Lennar Homes-Florida
• Mortenson Construction
• Gilbane Construction
• Wanzek Energy Construction Division of MasTek