| 2013 - Present |
Deborah J. Bowen President and Chief Executive Officer |
| 1991 - 2013 |
Thomas C. Dolan, PhD President and Chief Executive Officer |
| 1979 - 1991 |
Stuart A. Wesbury Jr., PhD President |
| 1972 - 1978 |
Richard J. Stull President |
| 1965 - 1971 |
Richard J. Stull Executive Vice President |
| 1942 - 1965 |
Dean Conley Executive Director |
| 1937 - 1941 |
Gerhard Hartman, PhD Executive Secretary |
| 1933 - 1937 |
J. Dewey Lutes Director General |