| SPEAKER | YEAR |
| Martin Abadi | 1999 |
| Samson Abramsky | 1992 |
| Eric Allender | 1996 |
| Rajeev Alur | 1998 |
| Arvind | 1985 , 1996 |
| Henk Barendregt | 1993 |
| Gerard Berry | 1993 |
| Dines Bjorner | 1986 |
| Manuel Blum | 1991 |
| R. Burstall | 1988 |
| Ashok Chandra | 1985 |
| K. Mani Chandy | 1983 |
| Edmund Clarke | 1997 |
| Thierry Coquand | 1994 |
| H. Edelsbrunner | 1995 |
| Philippe Flajolet | 1982 |
| Lance Fortnow | 1994 |
| K. Furukawa | 1988 |
| David Gries | 1982 , 1987 |
| Leo Guibas | 1989 |
| Yuri Gurevich | 1987 , 1991 |
| Joseph Halper | 1993 |
| Juris Hartmanis | 1993 |
| Matthew Hennessy | 1989 |
| Tony Hoare | 1985 |
| John Hopcroft | 1983 |
| Gerard Huet | 1987 |
| Neil Immerman | 1998 |
| Mathai Joseph | 1989 |
| Aravind Joshi | 1982 |
| Ravi Kannan | 1986 |
| Deepak Kapur | 1997 |
| Lila Kari | 1999 |
| S. Rao Kosaraju | 1990 |
| R. Kowalski | 1984 |
| Dexter Kozen | 1994 |
| E.V. Krishnamurty | 1983 |
| Jean-Louis Lassez | 1990 |
| Jean-Jacques Levy | 1999 |
| Laszlo Lovasz | 1986 |
| Zohar Manna | 1985 |
| Ken McMillan | 1998 |
| Kurt Mehlhorn | 1992 , 1999 (**) |
| Jayadev Misra | 1987 |
| Ketan Mulmuley | 1993 |
| Ian Munro | 1996 |
| Mogens Nielsen | 1995 |
| Maurice Nivat | 1981 , 1988 |
| Prakash Panangaden | 1995 |
| Christos Papadimitrou | 1986 |
| Rohit Parikh | 1984 |
| Mike Paterson | 1995 |
| Amir Pnueli | 1992 |
| Vaughan Pratt (*) | 1996 |
| F. Preparata | 1988 |
| Prabhakar Raghavan | 1994 |
| Vijaya Ramachandran | 1997 |
| John Reif | 1998 |
| G. Rozenberg | 1989 |
| John Rushby | 1996 |
| Sartaj Sahni | 1984 |
| Erik Schmidt | 1998 |
| Micha Sharir | 1999 |
| Madhu Sudan | 1997 |
| P.S. Thiagarajan | 1984 |
| Wolfgang Thomas | 1994 |
| Seinosuke Toda | 1999 |
| Moshe Vardi | 1997 |
| Umesh Vazirani | 1998 |
| Glynn Winskel | 1991 |
(*) Special session in honour of Rohit Parikh
(**) Joint session with ISAAC.