| Merchant | Domain | Country | Program Approval |
|---|---|---|---|
| firstbase.io | Not Listed | Open | |
| firstcard.app | Not Listed | Open | |
| firstclasswatches.co.uk | Not Listed | Open | |
| firstcry.com | Not Listed | Open | |
| firstcry.com | Not Listed | Open | |
| firstdate.com | Multiple | Open | |
| firsthandsupply.com | Not Listed | Open | |
| firstleaf.com | Not Listed | Open | |
| firstofakind.com | Not Listed | Open | |
| firsttactical.com | Not Listed | Open |