Note: not all IIS members' names are listed below, as some members have chosen not to list their names publicly.
| Adam Kisby | Etienne Forsstrom | Karin Lindgrin | Raf van de Breugde |
| Afsin Saltik | Felix Melber | Karl A. Manthey | Ramsah Sabdin |
| Alan Willis | Fernando Barbosa Neto | Karl Reitmaier | Reed I. Maxwell |
| Alberto Bedmar Montaño | Fernando José Kirschbaum | Karthik Suresh | Richard Ambler |
| Alexander Gutierrez | Fernando Sanchez | Kathi Deavers | Richard Austin |
| Alexander Herkner | Francisco Rodriguez | Kevin Daley | Richard Cadle |
| Allan Campos Torres Markovic | Gary Newing-Morrow | Kevin Megowan | Richard Hansson |
| Anders Hellström | Gavan Cushnahan | Kevin Skehan | Richard Szary |
| Andrea Toffoli | Georg Locher | Kim Vaughan | Robert Blais |
| Andrew Aus | Georg Werner Kohlmeyer | Kirk Kirkpatrick | Robert Kowalski |
| Andrew Frye | George Walendowski | Kyung - Suk Min | Robert Rose-Coutré |
| Angelica Hanon | Greg A. Grove | Laura Isabella | Rodrigo Díaz de Anda |
| Anirban Bhattacharyya | German Gonzalez | Leif E. Ågesen | Rodrigo Garcia Kosinski |
| Anthony Faull | Gerry Marasigan PEng MBA | Lemuel Abarte | Ronald D. Coleman |
| Antonio Rada | Gianmarco Bartellone | Leon Golderg | Rudolf Trubba |
| Apostolidis Christos | Giorgio Milani | Leon Hostetler | Ryan Burress |
| Armin Becker | Gøran Jansson Berg | Lindsay Bellmaine | Ryan Jackson |
| Arturo Ruiz | Gretchen Brinker | Luis Enrique Pérez | Sandra Halby |
| Bak Jun Bom | Gwyneth Rolph | Luke Harbaugh | Scott Hassett |
| Baran Yonter | Hans Blokker | Lulu Sukhabut | Sérgio dos Santos |
| Beun Jin Tae | Harry Hollum | Magnus Johansson | Sharif Haider |
| Blaine McFarland | Henning Droege | Marc Roman Remulla | Sharmila Melissa Yogalingam |
| Blaine Nowak | Hill Schroder | Marco Ripà | Shinji Okazaki |
| Bo Østergaard Nielsen | Hwee-Joo Kam | Marion Nagy | Stanislav Riha |
| Bram van Kaathoven | Ioannis Chondrobilas | Marios Prodromou | Stefano Casali |
| Brennan Martin | Ioannis Michailidis | Marius Du Bruyn | Stefano Zanero |
| Brent Seeley | Irene Alexandra | Mark H Barnett | Sunder Rangarajan |
| Bryan Sholtis | Ivan Suarez | Mark Van Orden | Sverre Odland |
| Burak Yulug | Jacqueline Slade | Martin Jacobsen | T.G. Hadley |
| Caroline Walter | James Dorsey | Martin Karpinski | Tapio Kortesaari |
| César Tome | Jan Flour | Martin Tobias Lithner | Tayo Sandono |
| Charles Rankowski | Jarl Victor Bjørgan | Matthew Hall | Thomas Eriksson |
| Chiu Ng | Jason Baron | Michael Anthony Bois | Thomas Eriksson |
| Chris Garcia | Jason Betts | Michael Baker, Jr. | Thorsten Wuest |
| Christian Nielsen | Jason Manuel | Michael Donoho | Thuy-Vi Ton That |
| Christopher Garcia | Jason Munn | Michael Jackson | Tina M. Beatty |
| Claudia Lou | Javier Río Santos | Michael S. August | Tommy Smith |
| Dan Boersma | Jeffrey M. Osgood | Monte C. Washburn | Tommy Upshaw |
| Dar Forsyth | Jeffrey Vale Cruz | Muhamed Veletanlic | Tony Lee Magee |
| David R. Butcher | Jim Varnado Jr | Nick Paleveda MBA J.D. LL.M | Tony Zoltai |
| Dennis Kovich | Joel Freyss | Nicolas Boderau | Torbjørn Brenna |
| Derek Devine | Johan Stevenberg | Nikhil Jagdish Dhamapurkar | Valerie Warren |
| Deron K. Holmes | John Green | Noriyuki Sakurai | Vicente Lopez Pena |
| Dezso Nyitray Jr. | John Kaspo | Nuno Baptista | Victor HIngsberg |
| Don Ridgway | John Sweeney | Okay Karakas | Vincenzo D'Onofrio |
| Don Zacherl | John Wells | Olav Hoel Dørum | Warren Tang |
| Doug Thorpe | Jon Scharer | Oli Hambeug | Wuest Thorsten |
| Dr. W. Sumner Davis | Jon Wallace | Owen Cosby | Xavier Jouve Ph.D, |
| Drew Sanner | Jonás Carmona Pírez | Pamela Staschik-Neumann | Yoshiyuki Shimizu |
| Duc Hong Le | Jonathon Griffin | Pascale E. Qureshi | Yuri Jan Leopoldseder |
| Dylan Taylor | Jordan Greenaway | Patrick Maitland | Yuri Tovar |
| Eduardo Ramirez | Jorge Rosales | Paul Bechly | |
| Eileen Reitmaier | Jorgen Rex Olson | Paul Burman | |
| Einar Zettergren | José Antonio Polo Hernández | Paul Edgeworth | |
| Elizabeth Scott | Jose Gonzalez Molinero | Paul F. Kisak | |
| Enrique Gil | Juan Gonzalez Liebana | Paul Freeman | |
| Ephedyn Ilurie | Juergen Koller | Paul Stuart | |
| Eric Trowbridge | Justin Harris | Peter Lisowski | |
| Ernie Marasigan PEng PE | Justin M. Cruz | Phil Elauria | |
| Eugenio Correnti | Justin Zijlstra | Politis Gerasimos |