Using Plimus

We are using Plimus.com as one of our payment gateway. The admin pages seems to be powerful. There is one thing I feel strange is that I cannot find a plimus logo on their site like the following one.
Plimus uses the highest level of encryption throughout the entire order and setup processes, from all order pages, through the storage of customer information, and credit card processing which is done by Wells Fargo, one of the largest and most trusted financial institutions.There is a variety of payment options: Visa, MasterCard, EuroCard, American Express, Discover/Novus, Diners Club, JCB, US$ Checks, Eurochecks, Wire Transfers, Paypal and Purchase orders.