| Business | Phone |
| Agfa Corp 590 Northshore Dr, Hartland 53029 | (262) 369-0900 |
| Aqs 1325 Walnut Ridge Dr, Hartland 53029 | (262) 369-7500 |
| Aqs 625 Walnut Ridge Dr, Hartland 53029 | (262) 367-5495 |
| Computec Integrated Solutions N7134 N Huntington Ct, Hartland 53029 | (262) 538-1728 |
| Supplytrends Software Corp Hartland 53029 | (262) 538-0558 |
| Digital Consulting Ltd N56w29318 Westview Rd, Hartland 53029 | (262) 367-2165 |
| Intellisys Inc N78w31401 Kilbourne Rd, Hartland 53029 | (262) 966-3833 |
| Lakeland Computer Technologies 248 Pawling Ave, Hartland 53029 | (262) 367-9431 |