About Us Our Leadership Team

Bill Pfeffer Operations Manager

Portrait of Bill Pfeffer

Bill Pfeffer is a native of Chilton, WI. In 1990, Bill received his PhD in Analytical Chemistry from Iowa State University. Leaving the corn fields of Iowa, Bill traveled to the land of the midnight sun where he completed a postdoctoral research position at the University of Stockholm, Sweden. Diverging from academics in 1991, Bill entered into the pharmaceutical industry by first designing and testing analytical instrumentation for Bio-Rad Inc. in Hercules, CA, and then in 1996, working as Analytical Group Leader for GlaxoSmithKline Biologicals in Hamilton, MT. In 2012, joined Rocky Mountain Biologicals as QA manager.

Jeff Pease Serum Manager

Portrait of Jeff Pease

Born in Idaho, raised in Logan, Utah, Jeff Pease joined Rocky Mountain Biologicals in January, 2014 as Director of Operations. Jeff comes to us from Thermo Fisher Scientific where he spent 12 years in multiple roles from, Engineering Manager, General Manager in New Zealand of their Australasia Serum Business and the past 5 years as their Global Serum Procurement Manager. Prior to Jeff's time in Biopharmaceuticals he spent time as Plant Manager at Silicone Plastics, an Injection Molding Company and Designer and Project Manager for Campbell Scientific, a Global Leader in robust remote data recording equipment. A big part of Jeff's life revolves around the outdoors which makes Missoula Montana a perfect fit for work and play. Jeff brings his wife, Carolynn of 33 years who has wanted to live in the mountains of Montana for many, many years.