BIS Investigation Company’ purpose is to provide

our clients with accurate, usable evidence assisting them in better decision making and enhancing their personal and/or business lives. We endeavour to accomplish this efficiently, in a cost effective manner and treat each client and their situation personally and with total confidentiality.


Best Investigation Services

Begin Your Transformation Today

About our Investigator Meet the Business Owner

Iyad Sadi, CPI, Over the past 27 years he had the opportunity to work closely with the public, which has in return given him the capability of honing his skills towards working with clients and reading suspects proficiently. He holds a Master Detective in Private Investigations diploma awarded by the California Detective school. Bureau for Private Education - State of California, and he holds a Degree in Criminal Justice diploma awarded by the State of the Texas Education Department with 12 years of experience as a private investigator. He currently is the CEO of BIS investigation Services. He began his investigation career since 2007 working as a private investigator and training for an Investigation Company under the direction of John H. Dietz, former Assistant Regional Inspector of the Internal Security Division, IRS. He began his federal career with the U.S. Department of Justice as a Special Agent with the Federal Bureau of Narcotics and Dangerous Drugs. Iyad has also been a valuable resource for the Federal Bureau of Investigation ( FBI ) on various key investigations. BIS Fully Licensed, Insured, Bonded and Registered throughout the state of Texas. When you are in need of a Private Investigator, don't hesitate to call BIS Investigations. We are committed to finding out all the facts so we can supply the answers you need. 

                          Dallas, Fort Worth,76034


99 Cheek Sparger Rd

Colleyville, TX 76034

[email protected]

Office (817) 891-4586

Copyright © 2015. Best Investigation Services

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