| Merchant | Domain | Country | Program Approval |
|---|---|---|---|
| ottopay.com | Not Listed | Open | |
| otty.com | Multiple | Open | |
| otulishop.pl | Not Listed | Open | |
| otumm.com | Not Listed | Open | |
| otus.ru | Not Listed | Open | |
| ou.com.br | Not Listed | Open | |
| yumpsoft.com | Multiple | Open | |
| ouandme.com | Not Listed | Open | |
| ouate-paris.com | Not Listed | Open | |
| ouder-club.com | Not Listed | Open |