| Business | Phone |
| Applied Technologies 16815 W Wisconsin Ave, Brookfield 53005 | (262) 784-7690 |
| Weidinger Forbes & Assoc Ltd 13400 Bishops Ln, Brookfield 53005 | (262) 780-0121 |
| Transcore 2505 N 124th St, Brookfield 53005 | (262) 797-6577 |
| Dickerson Enterprises 16480 Burleigh Pl, Brookfield 53005 | (262) 781-8800 |
| Dralle Materials Consulting 17975 Continental Dr, Brookfield 53045 | (262) 781-1042 |
| Spx Service Solutions 4580 Somerset Ln, Brookfield 53045 | (262) 373-0769 |
| Fastek International Ltd 295 Regency Ct, Brookfield 53045 | (262) 754-9197 |
| Frank T Lamm & Assoc 2780 Almesbury Ave, Brookfield 53045 | (262) 784-3402 |
| Geo Trans 175 N Corporate Dr 100, Brookfield 53045 | (262) 792-1282 |
| R J Miller Assoc Inc 12745 W Capitol Dr, Brookfield 53005 | (262) 783-6699 |
| Mead & Hunt Engineering 17100 W Capitol Dr, Brookfield 53005 | (262) 790-0232 |
| Nel Pretech Corp 3540 N 126th St, Brookfield 53005 | (262) 373-0653 |
| Kprg & Assoc Inc 14665 W Lisbon Rd, Brookfield 53005 | (262) 781-0475 |
| Kte Consultants 3315 N 124th St, Brookfield 53005 | (262) 790-5540 |
| Leclaire Group Llc 18455 Parkview Dr, Brookfield 53045 | (262) 790-6822 |
| Mahos Engineering Inc 12557 W Burleigh Rd, Brookfield 53005 | (262) 786-7040 |