| Business | Phone |
| Apex Structural Design 405 S 3rd Ave # 101, Sioux Falls 57104 | (605) 335-4071 |
| Sea Inc 221 S Phillips Ave # 207, Sioux Falls 57104 | (605) 334-0188 |
| Rise Inc 4809 W 41st St # 100, Sioux Falls 57106 | (605) 361-4158 |
| Kms Engineering 604 W 25th St, Sioux Falls 57105 | (605) 334-3210 |