 | tricoci university of beauty culture | oak brook, illinois, united states | - | higher education | 2004 | |
| imrf | oak brook, illinois, united states | - | government administration | 1941 | |
 | microsmarts llc | oak brook, illinois, united states | - | computer software | 1993 | |
| nology interactive | oak brook, illinois, united states | - | marketing and advertising | 2010 | |
| medulla, llc | oak brook, illinois, united states | - | marketing and advertising | 2011 | |
| someone who cares | oak brook, illinois, united states | - | financial services | 1974 | |
| quest design group, inc. | oak brook, illinois, united states | - | mechanical or industrial engineering | 2003 | |
| embrace living communities | oak brook, illinois, united states | - | non-profit organizations | 1895 | |
| ais - advance innovative solutions, inc | oak brook, illinois, united states | - | computer software | 1996 | |
| national decorating service, inc. | oak brook, illinois, united states | - | construction | 1921 | |
| mardev-dm2 | oak brook, illinois, united states | - | marketing and advertising | - | |
| nationwide mortgage & realty, llc | oak brook, illinois, united states | - | financial services | 2000 | |
| stonebridge wealth management, llc | oak brook, illinois, united states | - | financial services | - | |
| launch technical workforce solutions | oak brook, illinois, united states | - | staffing and recruiting | 2011 | |
| the niew group | oak brook, illinois, united states | - | financial services | - | |
| reliance home health caregivers | oak brook, illinois, united states | - | medical practice | 2012 | |
| american president line | oak brook, illinois, united states | - | shipbuilding | - | |
| freeland ace hardware | oak brook, illinois, united states | - | retail | - | |
| brook clinic assoc | oak brook, illinois, united states | - | insurance | - | |
