Merchant Partners is a credit card merchant gateway that is integrated with WHMCS.
The Merchant Warrior payment gateway module is available in WHMCS.
The Modulo Moip payment gateway module is available in WHMCS.
Moneris is a Canadian payment gateway.
Moneris Vault is a Canadian payment gateway.
The NaviGate payment gateway module is available in WHMCS.
The NETbilling payment gateway module is available in WHMCS.