| Business | Phone |
| Metro Real Estate Inspections 4190 Timberlane Dr, Northbrook 60062 | (847) 272-2766 |
| Shell Group Accounting 60 Revere Dr, Northbrook 60062 | (847) 509-5050 |
| Ralph Liss 3100 Dundee Rd, Northbrook 60062 | (847) 559-0199 |
| Woodland Consultants Ltd 400 Skokie Blvd, Northbrook 60062 | (847) 714-1783 |