Pantex makes testing simple.

Celebrating 50 years of world-class endocrine immunoassays & antibodies



PANTEX is known for its Gold Standard Steroid Antibody Production and has been providing hospitals, laboratories, and diagnostic manufacturers worldwide with quality endocrine immunodiagnostic tools for 50+ years. 

PANTEX was founded by the late Dr. Neil Chiamori in 1972 and continues under the direction of his colleague and current owner, Dr. Rómulo Garza.


Dr. Garza is the former owner and founder of Radioassay Systems Laboratory, Inc. and has more than 40 years experience working in the field of in-vitro diagnostic research and development of endocrine immunoassays. He has published in excess of 20 peer-reviewed articles in international scientific journals and is a long-time member of the Endocrine Society and American Thyroid Association.

Our product reliability and consistency are maintained through active research and development and rigorous attention at each step of production. The high standards, integrity, and scientific expertise of Dr. Garza and his team move PANTEX forward through the 21st century.

We are committed to satisfying our global customers by providing quality products and services. Continuous company improvement is the goal of every employee.



1701 Berkeley Street, Santa Monica, CA 90404




Tel: 1-310-828-7423

Toll Free: 1-800-421-6529




Monday - Friday: 6:30am-3:00pm

© 2020 Pantex Division of Bio-Analysis, Inc.

1701 Berkeley Street, Santa Monica, CA 90404

Toll Free: 1-800-421-6529