| 1989 | Dr. Jack S. Kilby, Illinois Alpha '47 | for invention of the integrated circuit | |
| 1991 | Dr. Hans J.P. von Ohain, Ohio Eta '35 | for invention of the jet aircraft engine | |
| 1995 | Dr. John R. Pierce, California Beta '33 | father of communications satellite technology | |
| 1995 | Dr. Harold A. Rosen, Louisiana Beta '44 | father of communications satellite technology | |
| 1997 | Dr. Vladimir Haensel, Illinois Gamma '35 | developer of platinum reforming process for cleaner burning gasoline | |
| 2001 | Robert E. Kahn, New York Eta '60 | co-inventor of two protocols that enable computers to communicate with each other | |
| 2001 | Leonard Kleinrock, Massachusetts Beta '62 | for creating basic principles of packet switching | |
| 2002 | Robert S. Langer, New York Delta '70 | for extraordinary contributions to the bioengineering of revolutionary medical drug delivery systems | |
| 2005 | Dr. Edward A. Miller, Maryland Beta '50 | for invention of reconnaissance satellite technology | |
| 2005 | James W. Plummer, California Alpha '42 | for invention of reconnaissance satellite technology | |
| 2008 | Rudolf Kalman, Massachusetts Beta '53 | for the development and dissmenination of the optimal digital technique (known as the Kalman Filter) that is pervasively used to control a vast array of consumer, health, commercial, and defense products |