| Merchant | Domain | Country | Program Approval |
|---|---|---|---|
| shop.sienna-x.co.uk | Not Listed | Open | |
| sierbetononline.nl | Not Listed | Open | |
| sierra.com | Multiple | Open | |
| sierrabullets.com | Not Listed | Open | |
| sierradesigns.com | Multiple | Open | |
| sierralivingconcepts.com | Multiple | Open | |
| sierramadregolf.com | Not Listed | Open | |
| siesta-co.com | Not Listed | Open | |
| siewertini.de | Not Listed | Open | |
| sifjakobs.com | Not Listed | Open |