| Business | Phone |
| Energy Building Technology 11233 W Greenfield Ave, Milwaukee 53214 | (414) 778-1133 |
| Energy Division 931 W Madison St, Milwaukee 53204 | (414) 643-0890 |
| Energy Strategies Corp 4324 W Bradley Rd, Milwaukee 53223 | (414) 354-9902 |
| Enervation Inc 6730 N 107th St, Milwaukee 53224 | (414) 358-1600 |
| Reliable Water Svc 2514 S 102nd St, Milwaukee 53227 | (414) 546-9299 |
| Wisconsin Resource Svc 7938 W Potomac Ave, Milwaukee 53222 | (414) 393-0275 |
| Neu Life Comm Resource Ctr 2014 W North Ave, Milwaukee 53205 | (414) 933-3924 |