United Merchant Service

750 Fairmont Ave
Glendale CA 91203

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Opening Hours

  • Mon: 8am-5pm
  • Tue: 8am-5pm
  • Wed: 8am-5pm
  • Thu: 8am-5pm
  • Fri: 8am-5pm


  • American Express
  • ATM/Debit
  • Visa
  • Discover
  • MasterCard
  • Diners Club
  • Invoicing
  • Cash
  • Samsung Pay
  • Apple Pay

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United Merchant Services of California, also known as UMS Banking, provides payment processing services. Founded in 1987, it has a staff of more than 60 employees. The company provides various credit card processing products, such as card readers, wireless terminals, printers and pin pads. United Merchant Services of California offers electronic check guarantee and conversion, electronic funds transfer, internet payment processing and application software services. It is a member of various organizations, such as the Western States Acquirers Association, Community Bankers of California and Western Independent Bankers Associations. Headquartered in Glendale, Calif., it also maintains offices in Texas and Florida.