| Business | Phone |
| Revenue Security Svc 606 N Carancahua St, Corpus Christi 78476 | (361) 882-9000 |
| Certi Med Collections 606 N Carancahua St 1210, Corpus Christi 78476 | (361) 882-5153 |
| Check Plus Systems Inc 606 N Carancahua St # 1210, Corpus Christi 78476 | (361) 888-9399 |
| Professional Recovery 400 Mann St 906, Corpus Christi 78401 | (361) 884-3701 |