| Business | Phone |
| American Medical Building Inc 219 N Milwaukee St 100, Milwaukee 53202 | (414) 291-4420 |
| Building Committee Inc 229 E Wisconsin Ave 600, Milwaukee 53202 | (414) 270-3400 |
| Building Services & Conslnt 4030 S Howell Ave, Milwaukee 53207 | (414) 481-1675 |
| Excelon Inc 1717 S 12th St, Milwaukee 53204 | (414) 671-1180 |