| Business | Phone |
| Traffic Engineering Svc Inc 890 Elm Grove Rd 110, Elm Grove 53122 | (262) 797-9097 |
| Singh & Assoc Inc 1135 Legion Dr 105, Elm Grove 53122 | (262) 821-1171 |
| Robert R Hedrick Pe 1280 Orchard Ln, Elm Grove 53122 | (262) 784-6707 |
| Russ Henke Assoc 1000 Grandview Dr, Elm Grove 53122 | (262) 782-0410 |
| Parameter Inc 13380 Watertown Plank Rd, Elm Grove 53122 | (262) 786-7580 |