| 45 years | Dean H Krull |
| 40 years | Stacy A Adams |
| Richard B Ferguson | |
| 30 years | Elizabeth S Jeske |
| Natalya M Nersesian | |
| Jerry D Volesky | |
| 25 years | Martha Mamo |
| Vicki K Schroeder | |
| 20 years | Todd J Kudlacek |
| Carlos A Urrea Florez | |
| 15 years | Jenny A Stebbing |
| Harkamal Walia | |
| 10 years | Cody F Creech |
| David L Hyten Jr | |
| Christopher A Proctor | |
| Daniel A Simon Jr | |
| Meghan E Sindelar | |
| Mitchell B Stephenson | |
| 5 years | Lisa L Hilfiker |
| Alexey Moisseyev |