| Hogan, Barry | 1992 - 1993 | Senior Scientist, Janssen, Malvern, PA |
| O'Shea, Tommy | 1992 - 1993 | |
| Zuo, Hong | 1993 - 1995 | |
| Zhou, Jiaxun | 1993 - 1998 | |
| Gunaratna, Chandrani | 1993 - 1994 | Editor, LankaPage, Indianapolis, IN |
| Hu, Tao | 1994 - 1995 | |
| Aced, Gaby | 1995 - 1997; 1998 | Owner and Managing Director, IRIS Technologies International GmbH, Germany |
| Holland, Lisa | 1996 - 1999 | Professor of Chemistry, West Virginia University, Morgantown, WV |
| Zhong, Min | 1997 - 1998 | Chief Operating Officer and Co-Founder, Regor Therapeutics Group, Shanghai City, China |
| Henry, Charles | 1998 | Professor of Chemistry, Colorado State University, Fort Collins, CO |
| Everett, W. Russell | 1998 - 1999 | |
| Martin, R. Scott | 1999 - 2002 | Professor of Chemistry, Saint Louis University, St. Louis, MO |
| Garrison, Kenneth | 2000 - 2001 | Professor of Chemistry and Nettie Marie Jones Chair of Chemistry, College of the Ozarks, Point Lookout, MO |
| Carlson, Brian | 2001 - 2003 (shared with Stobaugh Group | |
| Vandaveer, Walter | 2001 - 2005 | Analytical Chemistry Manager, SynTech Research, Stilwell, KS |
| Fogarty, Barbara | 2002 - 2005 | Associate Director (Infrastructure) - Framework Management, Jacobs, County Cork, Ireland |
| Tarus, Janet | 2004 - 2007 | Senior Group Leader, Syngenta |
| Hulvey, Matthew | 2008 - 2010 | Manager, Advanced Drug Delivery Contract Manufacturing, MilliporeSigma, St. Louis, MO |
| Livanec, Philip | 2009 - 2010 | Group Lead, ExxonMobil Refinery, Beaumont, TX |
| Caruso, Giuseppe | 2015 - 2017 | Assistant Professor, Department of Drug and Health Sciences, University of Catania, Italy |
