| Directorate Services Unit (DSU) (22,451) |
| Technology Department (TE) (158) |
| Finance and Procurement (FP) (2,851) |
| Physics (PH) (40,338) |
| Accelerator Technology (AT) (5,196) |
| Accelerators & Beams (AB) (20,736) |
| Technical Support (TS) (1,386) |
| Information Technology (IT) (4,986) |
| Human Resources (HR) (1,087) |
| Engineering Department (EN) (424) |
| Beams Department (BE) (783) |