A new ranking of independent sales organizations finds five that exceed others for growth. Compiled by The Strawhecker Group, the ranking of ISOs that often escape attention because they do not dominate the industry on size alone found that CoCard Marketing Group LLC of Nashville, Tenn.; Alpha Card Services Inc. of Huntingdon Valley, Pa.; BluePay Inc. of Naperville, Ill.; Fast Transact Inc. of Olympia, Wash.; and UMS Banking of Glendale, Calif., outpaced their peers in a number of ways. Those areas include the number of new merchant accounts they signed in a month, the number of merchant contracts they managed, the number of transactions those merchants made and the dollar value of that processing. Kurt Strawhecker, managing director of the Omaha, Neb.-based consultancy, says because the list examines more than a single factor, such as processing volume, the results present a more-balanced view of the leading ISOs. The ranking also is notable because only Visa Inc. and MasterCard Worldwide have lists of registered ISOs in the United States, and they will not release them. Strawhecker says any information about ISOs is welcome because it can provide some measurement of how well each is doing. The Strawhecker Group surveyed more than 40 ISOs but is releasing only the names of the top five because of confidentiality agreements signed with the participants, the firm says.