| Business | Phone |
| C J Engineering 830 N 109th St 1, Milwaukee 53226 | (414) 453-9496 |
| Community Engineering & Bldg 4701 W Mill Rd, Milwaukee 53218 | (414) 353-9101 |
| E Z Conveyor Svc 8861 W Schlinger Ave, Milwaukee 53214 | (414) 771-4782 |
| Engineers & Scientists-Milw 1515 W Wisconsin Ave, Milwaukee 53233 | (414) 288-5490 |
| International Union-Operating 633 S Hawley Rd, Milwaukee 53214 | (414) 453-5497 |
| Yamaha Robotics 6537 Hillcrest Dr, Milwaukee 53213 | (414) 453-1888 |
| Milwaukee City Traffic Engrs 841 N Broadway 920, Milwaukee 53202 | (414) 286-3236 |
| Wis Erection & Engineering Inc 10724 W Michigan St, Milwaukee 53226 | (414) 774-8366 |
| Templeton Engineering 1777 N 83rd St, Milwaukee 53213 | (414) 258-2714 |
| Topcall Corp Milwaukee 53213 | (414) 443-9530 |
| Panslavia 6200 N 39th St, Milwaukee 53209 | (414) 393-1901 |
| Power Engineers Collaborative 6682 W Greenfield Ave # 109, Milwaukee 53214 | (414) 475-4550 |
| Productive Resources 230 W Wells St # 630, Milwaukee 53203 | (414) 223-0120 |