| Business | Phone |
| Quest Diagnostics Inc 17050 W North Ave, Brookfield 53005 | (262) 782-2739 |
| Johnson & Johnson Clnl Dgnstcs 250 N Sunny Slope Rd, Brookfield 53005 | (262) 785-8198 |
| Mobile Diagnostics-Wisconsin 125 N Executive Dr, Brookfield 53005 | (262) 821-8644 |
| Midwest Clinical Laboratories 19333 W North Ave, Brookfield 53045 | (262) 780-4092 |