STP Sponsors

Diamond

•   Charles River
•   Eli Lilly and Company
•   EPL Inc.
•   Pfizer, Inc.

Emerald

•   AbbVie, Inc.
•   Merck
•   Novartis Institutes for BioMedical Research, Inc.
•   Takeda Global Research and Development Center, Inc.

Opal

•   Genentech
•   GlaxoSmithKline

Ruby

•   Amgen, Inc.
•   Biogen, Inc.
•   Bristol-Myers Squibb
•   Celgene Corporation
•   Covance Laboratories, Inc.
•   DuPont Haskell Laboratories Center
•   MPI Research
•   Regeneron Pharmaceuticals, Inc.
•   Vertex Pharmaceuticals
•   Vet Path Services, Inc.

Sapphire 

•   AstraZeneca/MedImmune
•   HistoTox Labs, Inc.
•   Sanofi
•   Seventh Wave Laboratories

Pearl

•   Eisai, Inc.
•   GEMpath, Inc.
•   HSRL, Inc.
•   JCL Schuh, PLLC
•   Pre-Clinical Safety, Inc.