| Warrick Power Plant | Yankeetown | IN |
| Warsaw Court House | Fort Wayne | IN |
| Warsaw Court House | Warsaw | IN |
| Washington High School | South Bend | IN |
| Washington High School | Indianapolis | IN |
| Washington Powerhouse | Washington | IN |
| Washington Power & Light | Washington | IN |
| Washington Square Mall | Indianapolis | IN |
| Wastewater Facility | Jasper | IN |
| Wastewater Treatment Plant | Speedway | IN |
| Wastewater Treatment Plant | Elkhart | IN |
| Wastewater Treatment Plant | Monroe | IN |
| Wastewater Treatment Plant | Millersburg | IN |
| Wastewater Treatment Plant | Winchester | IN |
| Water & Electric Light Works | Auburn | IN |
| Water & Sewer Utility | Evansville | IN |
| Water Treatment Plant | Osgood | IN |
| Water Works | Marion | IN |
| Water Works | Evansville | IN |
| Wayne | Richmond | IN |
| Wayne | Fort Wayne | IN |
| Wayne County Court House | Richmond | IN |
| Wayne Knitting Mills | Fort Wayne | IN |
| Wayne Warehousing | Fort Wayne | IN |
| W.B. Sheets & Sons | Fort Wayne | IN |
| W.C. Grant | Fort Wayne | IN |
| W.C. Kirby Office Building | Noblesville | IN |
| W.C. McBride | Princeton | IN |
| W.C. Routh & Company | Logansport | IN |
| Weatherhead | Angola | IN |
| Weborn Memorial Baptist Hospital | Evansville | IN |
| Weil McLain | Michigan City | IN |
| Welborn Memorial Baptist Hospital | Evansville | IN |
| Wellborn Walker Hospital | Evansville | IN |
| W.E. Ralph & Company | Indianapolis | IN |
| Western Asylum | Logansport | IN |
| Western Drop Forge | Marion | IN |
| Western Electric | Indianapolis | IN |
| Western Glucose | Hammond | IN |
| Western Tar Prod | Terre Haute | IN |
| Westinghouse, Church, Kerr & Company | Lafayette | IN |
| Westinghouse, Church, Kerr & Company | Anderson | IN |
| Westinghouse Electric & Manufacturing | Bloomington | IN |
| Westinghouse Electric & Manufacturing | Muncie | IN |
| Westinghouse Electric & Manufacturing | Cayuga | IN |
| Westinghouse Electric & Manufacturing | Indianapolis | IN |
| Weston Paper & Manufacturing | Terre Haute | IN |
| West Penn Equipment | Hobart | IN |
| Westville Oil Conservation Products | Westville | IN |
| Wheelabrator | Mishawaka | IN |
