| Merchant | Domain | Country | Program Approval |
|---|---|---|---|
| 3zebra.com.tw | Not Listed | Open | |
| 4cornerscannabis.com | Not Listed | Open | |
| 4inkjets.com | Multiple | Open | |
| 4living.co.uk | Not Listed | Open | |
| 4travelfriends.com | Not Listed | Open | |
| 4wd.com | United States | Open | |
| 4wheelparts.com | Multiple | Open | |
| 4-pieds.com | Not Listed | Open | |
| 40plusrelatie.nl | Not Listed | Open | |
| 42dayscoffee.com | Not Listed | Open |