 | The Harvard State Bank | harvard, illinois, united states | 46 | banking | 1866 | |
 | Twin Garden Sales Inc | Harvard, illinois, united states | 4 | food and beverages | 1954 | |
 | Clavey's Nursery, Inc. | Harvard, illinois, united states | 1 | wholesale | 1886 | |
| Tc Fab | Harvard, illinois, united states | - | appliances, electrical, and electronics manufacturing | - | |
| STARLINE FACTORY, INC. | Harvard, illinois, united states | 5 | - | - | |
 | royal oak farm, inc. | harvard, illinois, united states | - | farming | 1992 | |
 | hartwig plumbing & heating, inc. | harvard, illinois, united states | - | construction | 1958 | |
 | harvard factory automation, inc. | harvard, illinois, united states | - | mechanical or industrial engineering | - | |
| harvard community unit school district 50 | harvard, illinois, united states | - | primary and secondary education | - | |
| SAUNDERS & MCFARLIN FUNERAL HOME, INC. | Harvard, illinois, united states | - | - | - | |
| the pound bakery | harvard, illinois, united states | - | wholesale | 1996 | |
 | aero industries inc. | harvard, illinois, united states | - | machinery | - | |
| catty corporation | harvard, illinois, united states | - | printing | 1907 | |
| modern millwork innovations | harvard, illinois, united states | - | architecture and planning | - | |
| migala metal designs | harvard, illinois, united states | - | fine art | - | |
| thunderhead advertising | harvard, illinois, united states | - | management consulting | - | |
| hedc | harvard, illinois, united states | - | government administration | 2001 | |
| pedigree ovens, inc. | harvard, illinois, united states | - | food production | 1996 | |
| custom window accents | harvard, illinois, united states | - | hospitality | 1979 | |
| blackwatch farm | harvard, illinois, united states | - | health, wellness and fitness | - | |
