We ensure highly secure, fast, efficient and incredibly professional e-commerce merchant services processing to our valued customers globally. No matter to which industry you belong we will handle every single point-of-sale transaction of your business expertly with our expert range of equipment and ensure a better success in Houston and in every corner of Texas. No delays in recording transactions and no fears of losing customer credentials when Sigma Merchant Processing is around. We offer shopping carts that are authorized and reliably linked with multiple payment procedures to offer ease and convenience to your customers.