 | Willowbrook Kia | Willowbrook, illinois, united states | 4 | retail | - | |
 | ES Cyber Solutions | willowbrook, illinois, united states | 21 | computer and network security | 2009 | |
 | Datamation Imaging Services | Willowbrook, illinois, united states | 20 | information technology and services | 1995 | |
 | McClement Management Group | willowbrook, illinois, united states | 30 | food and beverage services | 1979 | |
 | liberty asset management, inc. | willowbrook, illinois, united states | - | financial services | 2005 | |
| troop contracting | willowbrook, illinois, united states | - | construction | 2010 | |
 | red dog logistics inc. | willowbrook, illinois, united states | - | logistics and supply chain | 2013 | |
| magic moment photo booth | willowbrook, illinois, united states | - | entertainment | 2012 | |
 | g3 construction group, inc. | willowbrook, illinois, united states | - | construction | 2004 | |
| cortech usa | willowbrook, illinois, united states | - | design | 1993 | |
| midwest tungsten service | willowbrook, illinois, united states | - | appliances, electrical, and electronics manufacturing | 1958 | |
 | u.s. messenger & logistics | willowbrook, illinois, united states | - | package and freight delivery | 1999 | |
| parts garage | willowbrook, illinois, united states | - | automotive | 2011 | |
| maintenance technology magazine | willowbrook, illinois, united states | - | media production | - | |
| bravo transport llc | willowbrook, illinois, united states | - | transportation and trucking and railroad | 2011 | |
| midwest helicopter airways | willowbrook, illinois, united states | - | construction | 1968 | |
| national container group llc | willowbrook, illinois, united states | - | packaging and containers | - | |
| walsroder packaging llc | willowbrook, illinois, united states | - | packaging and containers | - | |
| game pazzo | willowbrook, illinois, united states | - | entertainment | 2010 | |
| vandham securities | willowbrook, illinois, united states | - | financial services | - | |
