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To provide our clients with the highest quality, most cost effective services along 

​ with courteous and dedicated investigators.



To provide the finest investigative services to our clients.



Privacy of our clients, h igh quality investigations, sympathetic staff, and high client satisfaction.






Why are we different

We are an established Private Investigation and Detective Agency providing full service investigations since 2007. focusing on corporate, legal, insurance, trademark, family and personal investigations. We are experience within the field of Private and Commercial investigations. Some of our services are available to clients all over the United States. We are a licensed, insured, and a bonded local private investigator practice in the state of Texas offering expert knowledge and advice to individuals, businesses, attorneys, insurance services, manufacturers and the public in the greater Dallas/Fort Worth area and within the entire State of Texas. 

We conduct, investigate and gathering information about trade mark. Names, Logos, Symbols, Jingles, Words, or Slogans that companies use to distinguish one service or product from others. Businesses put a lot of effort into creating and registering trademarks that will appeal to customers and create a strong brand image. Trademark violations occur when a business or person inadvertently or intentionally makes use of a logo, name, jingle, or other marketing tool from another business. If you are looking to protect your invaluable intellectual property call BIS Investigation today. We’ll tell you how we can implement our proven intellectual property protection programs to make sure you’re the only one who profits from your hard work, and to keep others from damaging your good name.


Licensed / Bonded by State of Texas

Iyad Sadi - Director, State Lice # A 03058101

Please call us for services and Free Consultation


Office  (817) 891-4586


Copyright © 2015. Best Investigation Services.

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