| Directorate Services Unit (DSU) (22,582) |
| Technology Department (TE) (166) |
| Finance and Procurement (FP) (3,830) |
| Physics (PH) (40,587) |
| Accelerator Technology (AT) (5,212) |
| Accelerators & Beams (AB) (21,180) |
| Technical Support (TS) (1,386) |
| Information Technology (IT) (33,975) |
| Human Resources (HR) (1,172) |
| Engineering Department (EN) (482) |
| Beams Department (BE) (914) |