We have faith that, in this new laboratory, science will be advanced, knowledge will be increased, and human life will win a greater freedom from suffering and disease.

George W. Merck, 1933
Former President

MRL is a global laboratory with more than 7,800 employees located at the following research sites.

  Rahway, New Jersey  

  West Point, Pennsylvania

  Automated Biotechnology
  North Wales
  Pennsylvania

  GlycoFi
    (a wholly-owned subsidiary of Merck & Co., Inc.)
    Lebanon, New Hampshire

  Merck Research Laboratories-Boston
    Boston, Massachusetts

  Rosetta Inpharmatics, Inc.
   (a wholly-owned subsidiary of Merck & Co., Inc.)
   Seattle, WA 

  Sirna Therapeutics  
   (a wholly-owned subsidiary of Merck & Co., Inc.)
   San Francisco, CA

Banyu Pharmaceutical Co., Ltd., Japan R&D sites: (Tokyo, Tsukuba)

The information presented on any given country's web site is governed by the regulatory guidelines within that particular country and, therefore, is intended for residents of that country only.