MARK9 has worked with the below agencies in recent years.

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References are available to agencies by request.

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Bowie County Sheriff's Office  

Brazos River Authority 

Collin County Sheriff's Office

Community United Effort

Dallas County District Attorney's Office

Dallas Fire Department

Dallas Police Department

Ft. Worth Police Department

Gilmer Police Department

Grayson County Sheriff's Office

Hood County Office of Emergency Management

Hood County Sheriff's Office

Hudson Oaks Police Department

Hunt County Sheriff's Office

Hurst Police Department

Hutchins Police Department

Idabel Police Department (Oklahoma)

Kaufman County Sheriff's Office

Lubbock Police Department

McCurtain County Sheriff's Office (Oklahoma)

McLennan County Sheriff's Office

Mesquite Police Department

Midland County Sheriff's Office

Northeast Texas Child Abduction Response Team

Oklahoma State Bureau of Investigation

Palo Pinto County Sheriff's Office

Parker County Sheriff's Office

Plano Police Department

Prosper Police Department

Richardson Police Department

Rockwall Police Department

SMU Police Department

Texas Parks & Wildlife

Texas Rangers

Trophy Club Police Department

U.S. Marshall Service

U.S. National Parks Department

U.S. Postal Service

Weatherford Police Department