| Business | Phone |
| Communication Service For-Deaf 3520 S Gateway Blvd, Sioux Falls 57106 | (605) 367-5759 |
| Communication Services-Deaf 102 N Krohn Pl, Sioux Falls 57103 | (605) 367-5760 |
| Interpreter Services 231 S Phillips Ave # 466, Sioux Falls 57104 | (605) 331-7800 |