| Directorate Services Unit (DSU) (22,651) |
| Technology Department (TE) (166) |
| Finance and Procurement (FP) (3,934) |
| Physics (PH) (40,631) |
| Accelerator Technology (AT) (5,233) |
| Accelerators & Beams (AB) (21,209) |
| Technical Support (TS) (1,386) |
| Information Technology (IT) (34,784) |
| Human Resources (HR) (1,179) |
| Engineering Department (EN) (495) |
| Beams Department (BE) (925) |