| D'aniello's Amity Bicycles |  | CT | New Haven | 5 |
| D'Aniello's Amity Bikes | | CT | Woodbridge | 6 |
| Daktari Sport | | | Mt Gambier | 0 |
| Daves Cycles Superstore | | | Walsall | 5 |
| Dcycles | | | São Paulo | 40 |
| Dedham Bike | | MA | Dedham | 2 |
| Deporte Bike Shop | | | Kharkov | 1 |
| Deschutes River Cyclery | | WA | Olympia | 4 |
| Dirt Merchant Bicycle Company | | | Johannesburg | 7 |
| Dirt Rooster Bicycles | | MD | Catonsville | 0 |
| Dirtopia Trail Centre (Muratie ) | | | Stellenbosch | 1 |
| DOBLE DIAMANTE NEGRO MTB / HYPER TRAILS | | | Estado de Mexico | 1 |
| Docteur Vélo St-Ambroise | | QC | Saint-Ambroise de Kildare | 3 |
| Dolgellau Cycles | | | Barmouth | 0 |
| Don Skene Cycles | | | Cardiff | 19 |
| Doug's Spoke N' Sport | | SK | Saskatoon | 21 |
| Downhill Zone | | WA | Issaquah | 57 |
| Downtown Bike | | WA | Cashmere | 0 |
| Drift | | | Newcastle | 40 |
| Drift Cycles | | | Herne Bay | 4 |
| DT Bicycles Ltd | | | | 42 |
| DT Bicycles Ltd | | | | 1 |
| Dunbar Cycles | | BC | Vancouver | 291 |
| Dundas Speed Shop | | ON | Dundas | 16 |
| Dynamite Bike Lab | | AZ | Scottsdale | 2 |