| Business | Phone |
| Transcend Architects & Engnrs 1000 Lothe St, Sun Prairie 53590 | (608) 825-2222 |
| Fire Tech Design 6730 Starburst Dr, Sun Prairie 53590 | (608) 837-6836 |
| One Plus Inc 113 W Main St, Sun Prairie 53590 | (608) 837-8022 |
| Knute Villand Consulting 100 Wilburn Rd, Sun Prairie 53590 | (608) 825-2222 |