| Business | Phone |
| Badger Oil Equipment Co 12030 W Ripley Ave, Milwaukee 53226 | (414) 258-2777 |
| Tiger Petroleum 3500 S 13th St, Milwaukee 53221 | (414) 481-7264 |
| Petroleum Construction Svc Inc 2148 S 116th St, Milwaukee 53227 | (414) 545-5681 |
| Purpora Engineering 2016 W Bender Rd, Milwaukee 53209 | (414) 228-2803 |