Please note that some of the IERS officers were active in more than one country.
| USA (36) | Sharyl M. Byram William E. Carter Benjamin F. Chao Jianli Chen Claire E. Cramer Tonie van Dam Maria A. Davis Bryan Dorland Steven Fisher Ralph A. Gaume Richard S. Gross Christine Hackman Thomas Herring | Ryan Hippenstiel Erik R. Ivins Frank Lemoine Brian Luzum Chopo Ma Dennis D. McCarthy Chuck Meertens William G. Melbourne A. James Miller Angelyn W. Moore Erricos C. Pavlis Hans-Peter Plag Jim Ray | Richard D. Ray David A. Salstein Bob E. Schutz Peter Shelus Nick Stamatakos Christian Veillet Daniel Veillette Michael M. Watkins Pascal Willis Clark R. Wilson William H. Wooden |
| France (22) | Zuheir Altamimi E. Felicitas Arias Richard Biancale Christian Bizouard Claude Boucher Jean-Paul Boy Hugues Capdeville Nicole Capitaine | Clément Courde Hervé Fagard Martine Feissel-Vernier Daniel Gambis Bruno Garayt Jean-François Lestrade Guilhem Moreaux Gérard Petit | Jérôme Saunier Patrick Sillard Jean Souchay Laurent Soudarin Jean-Marie Torre Pascal Willis |
| Germany (19) | Detlef Angermann Mathis Bloßfeld Robert Dill Hendryk Dobslaw Hermann Drewes Kirsten Elger Cornelia Eschelbach | Gerd Gendt Robert Heinkelmann Urs Hugentobler Jürgen Müller Axel Nothnagel Christoph Reigber Bernd Richter | Markus Rothacher Manuela Seitz Tim Springer Daniela Thaller Sheng Yuan Zhu |
| Switzerland (4) | Rolf Dach Adrian Jäggi | Markus Rothacher Daniela Thaller | |
| Austria (3) | Johannes Böhm | Sigrid Böhm | Robert Weber |
| Belgium (3) | Carine Bruyninx | Veronique Dehant | Tim van Hoolst |
| Poland (3) | Aleksander Brzezinski | Barbara Kolaczek | Jolanta Nastula |
| U.K. (3) | David Pugh | Andreja Susnik | George A. Wilkins |
| Australia (2) | John Dawson | Gary Johnston | |
| Canada (2) | Remi Ferland | Michael Craymer | |
| Czech Republic (2) | Jan Vondrák | Petr Štěpánek | |
| Italy (2) | Giuseppe Bianco | Pierguido Sarti | |
| Norway (2) | Per Helge Andersen | Hans-Peter Plag | |
| Sweden (2) | Sten Bergstrand | Rüdiger Haas | |
| China (1) | Guangli Wang | ||
| Denmark (1) | Ole B. Andersen | ||
| Hong Kong (1) | Jianli Chen | ||
| Japan (1) | Koichi Yokoyama | ||
| Luxembourg (1) | Tonie van Dam | ||
| New Zealand (1) | Elisabetta D'Anastasio | ||
| Russia (1) | Zinovy Malkin | ||
| South Africa (1) | Ludwig Combrinck | ||
| The Netherlands (1) | Ron Noomen | ||
| Ukraine - formerly USSR (1) | Yaroslav Yatskiv |
