| 2023 | Paul Gaffney |
| 2022 | Emily Ryan |
| 2021 | Pam Sailors |
| 2020 | [no one awarded | COVID-19] |
| 2019 | Junko Yamaguchi |
| 2018 | Peter Hopsicker |
| 2017 | Emily Ryall |
| 2016 | Alun Hardman |
| 2014 | Cesar Torres and Mike McNamee |
| 2013 | Jesus Ilundain-Agurruza and Charlene Weaving |
| 2012 | John Russell |
| 2010 | Terry Roberts |
| 2009 | Heather Reid |
| 2007 | Nicholas Dixon, Sharon Stoll, Spencer Wertz |
| 2005 | Scott Kretchmar |
