| Business | Phone |
| Kendle International 630 Dundee Rd 300, Northbrook 60062 | (847) 562-2300 |
| Nuclin Diagnostics 3322 Commercial Ave, Northbrook 60062 | (847) 498-5210 |
| Fmh Foundation 666 Dundee Rd, Northbrook 60062 | (847) 714-1155 |
| Northern Illinois Clinical Lab 306 Era Dr, Northbrook 60062 | (847) 509-9779 |
| Ocean Surveys Inc 5 Revere Dr 200, Northbrook 60062 | (847) 559-0186 |
| Realty Development Research 707 Skokie Blvd, Northbrook 60062 | (847) 480-2399 |
| Tuv Rheinland 1945 Techny Rd, Northbrook 60062 | (847) 562-0688 |