​Diamond Security and Investigative Services, LLC is a private security and investigative agency.

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Our philosophy is simple:

​Give the client more than they pay for. 


Our services are offered throughout the state of Oklahoma and our goal is to provide superior results and unmatched customer service.  We pride ourselves in the ability to meet our client’s objectives and exceed their expectations in an expedient and ethical manner at a competitive price.

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The strength of Diamond Security lies in the fact that we have the flexibility and creativity to deliver that which the client requests based upon their needs, without cutting corners.  It is our mission to provide clients with the kind of security they require in the most efficient, cost effective and comprehensive manner possible.

Click here to learn more about our security officers and training.