| Business | Phone |
| Waukesha Bearings Corp W231n2811 Roundy Cir E 200, Pewaukee 53072 | (262) 506-3000 |
| Cooper Power Systems Inc 1045 Hickory St, Pewaukee 53072 | (262) 691-0070 |
| Electrasystems Inc 1275 E Wisconsin Ave, Pewaukee 53072 | (262) 691-8600 |
| Ml Technologies Llc 1275 E Wisconsin Ave A, Pewaukee 53072 | (262) 695-3535 |