| Wheel Horse Products | South Bend | IN |
| Whirlpool | Evansville | IN |
| White Institute | Wabash | IN |
| Whiteland High School | Whiteland | IN |
| White Manufacturing | Elkhart | IN |
| White River Light & Power | Noblesville | IN |
| White's Industrial Institute | Wabash | IN |
| White Swan Super Market | Fort Wayne | IN |
| Whiting | Hammond | IN |
| Whiting Refinery | Whiting | IN |
| Whiting School City | Whiting | IN |
| Willard Shambaugh Elementary School | Fort Wayne | IN |
| William Cadick & Son | Rockport | IN |
| William E. English | Indianapolis | IN |
| Williams Construction | Madison | IN |
| Wilson & Company | Logansport | IN |
| Wilson Meat | Logansport | IN |
| Winmar Oil | Princeton | IN |
| Winona & Warsaw Railway | Winona Lake | IN |
| Winona & Warsaw Railway | Warsaw | IN |
| Wisconsin Steel | Gary | IN |
| Witham Memorial Hospital | Lebanon | IN |
| WKJG Television | Fort Wayne | IN |
| Wm Brothers & Miller | East Chicago | IN |
| Wolf & Dessauer | Fort Wayne | IN |
| Women's Residential Hall "B" | Lafayette | IN |
| Wood High School | Indianapolis | IN |
| Woolen & Callon | Indianapolis | IN |
| Wright Construction | Elkhart | IN |
| Youngstown Foundry & Machine | East Chicago | IN |
| Youngstown Sheet & Tube | Gary | IN |
| Youngstown Sheet & Tube | East Chicago | IN |
| Youngstown Steel Mill | East Chicago | IN |
