| Nom | Prénom | Mandat | Power |
|---|---|---|---|
| WILLIAMSON | THOMAS | 1962-07 | Partner with Unlimited Liability |
| WILLIAMSON | FREDERIC | 1966-08 | Partner with Unlimited Liability |
| WILLIAMSON | EDOUARD | 1935-11 | Manager |
| WILLIAMSON | DAVID | 1960-11 | Partner with Unlimited Liability |
| WILLIAMSON | ALEXANDRA | 1964-12 | Partner with Unlimited Liability |