| Directorate Services Unit (DSU) (22,898) |
| Technology Department (TE) (175) |
| Finance and Procurement (FP) (5,344) |
| Physics (PH) (41,187) |
| Accelerator Technology (AT) (5,233) |
| Accelerators & Beams (AB) (21,547) |
| Technical Support (TS) (1,390) |
| Information Technology (IT) (37,631) |
| Human Resources (HR) (1,215) |
| Engineering Department (EN) (553) |
| Beams Department (BE) (1,065) |