Unison Payment 8 months ago ID: #827807 Listed In : Finance and Banking 840 Reliez Rd, Lafayette, CA 94549 United States (925) 290-6003 http://www.unisonpayment.com Business Description Since 2017, Unison Payment has been a leading merchant services provider for small to medium-sized businesses. Offering merchant solutions for gift cards, loyalty and zero percent credit card processing programs for merchants. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : Merchant Services