| I – Scientific groups | 31/12/2022 | 31/12/2023 | 31/12/2024 |
| # | fte | # | fte | # |
| Permanent Scientific staff | 107 | 101,5 | 108 | 102,5 | 109 |
| PhD candidates *) | 127 | 127,0 | 128 | 128,0 | 129 |
| Post-docs | 54 | 53,8 | 55 | 54,8 | 56 |
| Subtotal I | 288 | 282,3 | 291 | 285,3 | 294 |
| II Technical/engineering support | | | |
| # | fte | # | fte | # |
| Electronics technology | 28 | 27,8 | 29 | 28,8 | 30 |
| Computer technlogy | 28 | 26,0 | 29 | 27,0 | 30 |
| Mechanical technology | 32 | 30,8 | 33 | 31,8 | 34 |
| Subtotal II | 88 | 84,5 | 91 | 87,5 | 94 |
| III Management team | | | |
| # | fte | # | fte | # |
| Director | 1 | 1,0 | 2 | 2,0 | 3 |
| Institute manager | 1 | 1,0 | 2 | 2,0 | 3 |
| Personnel manager | 1 | 1,0 | 2 | 2,0 | 3 |
| Strategy manager | 1 | 0,9 | 2 | 1,9 | 3 |
| Subtotal III | 4,0 | 3,9 | 8,0 | 7,9 | 12,0 |
| IV. General support | | | | | |
| # | fte | # | fte | # |
| Financial administration | 5 | 4,6 | 6 | 5,6 | 7 |
| Personnel/HRM administration | 2 | 2,0 | 3 | 3,0 | 4 |
| Facilities & Datacenter | 8 | 7,9 | 9 | 8,9 | 10 |
| Secretariat & reception | 4 | 3,4 | 5 | 4,4 | 6 |
| Communication | 4 | 2,9 | 5 | 3,9 | 6 |
| Occupational health & safety | 3 | 2,8 | 4 | 3,8 | 5 |
| Staff | 15 | 13,2 | 16 | 14,2 | 17 |
| Subtotal IV | 41 | 36,7 | 48 | 43,7 | 55 |
| | | | | |
| total I + II + III + IV | # | fte | # | fte | # |
| 421 | 407,3 | 438 | 424,3 | 455 |
| V. Other groups (headcount) | | | | | |
| PhD candidates finishing their theses | 3 | | 4 | | 5 |
| Guests (researchers & related organizations) | 140 | | 141 | | 142 |
| Apprentices | 8 | | 9 | | 10 |
| Bachelor- and Master students | 66 | | 67 | | 68 |
| Retired Staff with registration | 43 | | 44 | | 45 |
| *) PhD’s with active employment contract. | | | | | |
