| PS-B Group 1966 to 1967 | SI Division MPS-SI Division 1968 to 1972 | MPS-BR Group 1973-1975 | PS-BR Group 1976 to 1987 |
| MPS Division Leader | P.H. Standley (1965-1972) | |
| SI Division Leader | Giorgio Brianti (1968-1972) | |
| SI and MPS-SI Groups | DL | EL | MAE | ME | BR | MPS-SI |
| SI Documents by group | Groups | Leaders |
| SI-DL | Direction | G. Brianti |
| SI-EL | Electroncis | G. Nassibian |
| SI-MAE | Mechanical and Ejection | A. Asner |
| SI-ME | Mechanical | C. Rufer |
| MPS-SI Documents by group | Groups | Leaders |
| MPS-SI-BR | SI – Booster | K. H. Reich |
| MPS-SI-CO | SI – Controls | J.H.B. Madsen |
| MPS-SI-DL | SI – Direction | P.H. Standley |
| MPS-SI-ED | SI – Electrical Development | R. Mosig |
| MPS-SI-EL | SI – Electronics | G. Nassibian |
| MPS-SI-LIN | SI – Linac | C. S. Taylor |
| MPS-SI-MAE | SI – Mechanical and Ejection | A. Asner |
| MPS-SI-ML | SI – Mechanical | W. Richter |
| MPS-SI-PO | SI – Power | M. Georgijevic |
| MPS-SI-300-INJ | SI – 300 GeV Injection |