| FRA | 7 salopards (M7 Elite) |
| NLD | Arcadians (M7 Elite) |
| NLD | Ascrum (M7 Elite) |
| NLD | Castricum (M7 Elite) |
| NLD | DSR-C (M7 Elite) |
| FRA | EUSKARIANS (M7 Elite) |
| NZL | Firestorm R.C. (M7 Elite) |
| ZAF | Iguanas (M7 Elite) |
| NLD | Lions (M7 Elite) |
| NLD | Masada (M7 Elite) |
| ITA | NatiScombiNati (M7 Elite) |
| INT | Nyenrode 7s (M7 Elite) |
| USA | Olympic Club (M7 Elite) |
| NLD | RSRC Sevens (M7 Elite) |
| FRA | Sca Sevens (M7 Elite) |
| ENG | Scimitar (M7 Elite) |
| FRA | SEVENS LANDES RUGBY CLUB (M7 Elite) |
| CHE | Switzers Geneva Rugby (M7 Elite) |
| FRA | UBB Sevens (M7 Elite) |
| GBR | Wild Dogs Rugby (M7 Elite) |
| NLD | AAC Strollers (M7 Social) |
| NLD | Alkmaarse Rugby Club (M7 Social) |
| NLD | ARC3 (M7 Social) |
| DEU | Barbarossas (M7 Social) |
| NLD | boerenrugby.nl (M7 Social) |
| EGY | Cairo Wolves (M7 Social) |
| GBR | Chew Valley RFC (M7 Social) |
| ITA | Chicken Rugby (M7 Social) |
| ITA | ClonatiScombinati (M7 Social) |
| DNK | CSR-Nanok (M7 Social) |
| GBR | Dambusters (M7 Social) |
| DEU | Frankfurt Flamingos (M7 Social) |
| GBR | Gala (M7 Social) |
| GBR | Galacticos (M7 Social) |
| SWE | GåsaPågarna (M7 Social) |
| ITA | I Lambruschi (M7 Social) |
| NLD | Kwagga Rugby Social Elite (M7 Social) |
| ZAF | Kwagga Rugby Socials (M7 Social) |
| NLD | Louis' Angels (M7 Social) |
| NLD | Mammoth 7's (M7 Social) |
| NLD | Old Navigators (M7 Social) |
| DEU | RC Aachen 7s (M7 Social) |
| NLD | RSV Köln (M7 Social) |
| NLD | Rugbyclub Amsterdam (M7 Social) |
| ITA | VELATE RUGBY (M7 Social) |
| FRA | VGA St Maur (M7 Social) |
| NLD | Waterland Warriors (M7 Social) |
| FRA | Wonder 7s (M7 Social) |