The best Merchant Services now available in Houston are from Trout Payment Systems. Merchant credit / debit card solutions are readily available in today's marketplace, but most do not offer the local hands on expertise of a Human that will talk with you and help you with a hands on approach to your solution.
Napoleon Butic of Trout, http://troutpays.com will answer the phone, and talk you, and personally come to your place of business to support your POS system or your credit card processing systems.
In addition to that, Trout can help you accept credit cards on Android devices, iPhone's and iPads, and over the phone for your small business.
Call the best, just visit him on his web page at http://troutpays.com