About Us

Who We Are BRT Laboratories, Inc. is a multi-faceted genetic testing facility that provides state-of-the-art relationship testing. BRT Laboratories, Inc. (BRT) and its parent company, the Baltimore Rh Typing Laboratory, have been providing quality testing services since 1945. The experienced, respected, and dedicated staff at BRT is committed to providing its customers with superior technical services.

BRT provides molecular testing for the determination of parentage, sibship, twin studies, and other family relationships. BRT is responsive to the needs of its customers. We provide personalized service, reliable results, and expertise in relationship analysis. 

Respected For over 60 years, attorneys, researchers, hospitals, immigration officials, child support agencies, and private individuals have chosen BRT Laboratories, Inc. to provide paternity and immigration DNA testing. BRT provides dependable service locally in Baltimore, Maryland and through a global network of U.S. and foreign embassies.

Reliable BRT Laboratories, Inc. meets the quality standards of multiple oversight agencies, which reflects the significant commitment of the company to its Quality Management System, on-going quality assurance initiatives and dedication to providing our customers with high quality, responsive services.

Responsive BRT Laboratories, Inc. is a small, privately-owned laboratory which allows us to tailor our DNA testing services to satisfy the unique needs of our customers. 


Message from the Medical/Laboratory Director

Dr. Robert E. Wenk
Medical/Laboratory Director
We are extremely proud of the ethical and efficient DNA laboratory that our team has built. We are dedicated to providing our clients with the best customer service and providing accurate immigration and paternity DNA test results.

aaBB accredited Laboratory Relationship Test Methods – 2010

BRT’s Sample Collection Method

BRT Laboratories, Inc. uses buccal (cheek) swabs as our preferred method of DNA sample collection at our authorized collection sites, and it is also the preferred method used at U.S. and foreign embassies.  Buccal (cheek) swabs and blood samples provide results with the same degree of accuracy; yet, since cheek swabs are easy and painless to collect, they are used in the majority of all DNA tests.