Dallas Private Investigator, Process Server, Security Guard Service, & Training

Our Dallas Private Investigators at MJB GROUP Licensed Private Investigators provide private investigation services to attorneys, insurance companies, corporate, general public in Dallas, Fort Worth, DFW, Denton, McKinney, Rockwall, Garland, Plano, Arlington, Grand Prairie, Tyler, Longview, Texarkana, and Texas. Our private investigators and civil process servers have the training and experience to meet and exceed our clients' expectations. We specialize in criminal defense investigations, financial and fraud investigations (embezzlement, Ponzi Scheme, identity theft, etc.), forensic cell phone examinations (physical and logical), child custody investigations, and cheating spouse (infidelity) cases . We can also assist with corporate investigations in Texas, criminal investigations, capital murder, felony, sexual assault, assaults, robbery, as well as civil investigations. Our private investigators are experienced in a wide range of services including: 

  • Digital Forensics (cell phone data recovery) - Need to know what's on that cell phone?    Call Direct: 903-244-3965 for free consultation.
  • Criminal Defense Investigations (Interviews, crime scenes, witness testimony, evidence collection)
  • Electronic Surveillance (GPS Live Tracking, Surveillance van, discreet photographs, videos
  • Background Searches (Hidden Assets, Business Locate, Known and Unknown associates, Addresses to 10 years, Land Line and Cell Phone reverse search, locate people, find lost loved ones, pre-marital background, National criminal Records Search, Civil Court Records Search.
  • Financial Investigations  (Bank Locate Searches, Extensive Background Reports, forensic accounting, Ponzi Scheme flowcharts and complex link analysis, Subpoena service and TROs, "follow the money trail".
  • Insurance Fraud investigations - Full complete report provided with time/date stamped photographs, videos and other digital devices.
  • Criminal and Civil Investigations
  • Courtroom Testimony - 43 years court room experience.
  • Cold Case Re-open Reinvestigations. -  43 years Federal, State, and local Law Enforcement criminal investigative experience.
  • Crime Scene Re-examinations. - 43 years Federal, State, and local Law Enforcement criminal investigative experience.   
  • Private Investigator Private Training Course - 48 hours of in-class intensive federal-level type investigations training for those serious about the profession.
  • Civil Process Service - Process Servers cover DFW Metroplex - Dallas - Fort Worth, Dallas County, Tarrant County, Rocwkall County, Kaufman County, Van Zandt County, Smith County, Bowie County, and surrounding areas. Call us today today if you need a Process Server in Dallas or surrounding areas! (903) 787-2156 

Private Investigator in Dallas - Serving Dallas - Fort Worth - Lewisville - Flower Mound - Coppell - Carrollton - Grapevine - Trophy Club - Weatherford - Beaumont - Mesquite - Plano - Garland - Richardson - Frisco - Irving - McKinney - Rockwall - Arlington - Rowlett - Wylie - Allen - DeSoto - Austin - San Marcos - New Braunfels - San Antonio - DFW Metroplex - Denton County - Dallas County - Tarrant County - Collin County - Hunt County - Ellis County - Kaufman County - Rockwall County - TX - Van Zandt County - Smith County -Texas - and surrounding areas.

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We offer free initial consultations for new clients, and would be happy to sit down and discuss the nature of the services you are requesting. 


8828 N Stemmons Fwy, Suite 230, Dallas, Texas 75247, United States

(972) 798-7374



9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm


9:00 am – 5:00 pm


By Appointment


By Appointment