| Domestic Laundry | Eugene | OR |
| Dominican Victory | Portland | OR |
| Don Basset | Portland | OR |
| Donbass Iii | Portland | OR |
| Donner Lake | Portland | OR |
| Downbecker Manufacturing | Portland | OR |
| Drepanon | Portland | OR |
| Drew Victory | Portland | OR |
| Duane Christie Realty Office | Beaverton | OR |
| Duraflake | Albany | OR |
| Dwyer Lumber | Portland | OR |
| Eastern Oregon State Hospital | Pendleton | OR |
| Edenfield | Portland | OR |
| Edith Green | Portland | OR |
| Edmund F. Dickens | Portland | OR |
| Edna N. Conway | Portland | OR |
| Edward Eggleston | Portland | OR |
| Edward Hines Lumber | Westfir | OR |
| Edward Hines Lumber | Burns | OR |
| Edward Hines Western Pine | Burns | OR |
| Edwin Booth | Portland | OR |
| Egg Harbor | Portland | OR |
| E H Harriman | Portland | OR |
| E. Hines Lumber | Westfir | OR |
| EJ Bartells | Portland | OR |
| Elbos | Portland | OR |
| Elbrus | Portland | OR |
| Eleanor | Portland | OR |
| Electra | Portland | OR |
| Electronic Specialty Plating Shop | Portland | OR |
| Elia B. | Portland | OR |
| Elia Bibolini | Portland | OR |
| Elija White | Portland | OR |
| Elisabetta D. | Portland | OR |
| Elk Basin | Portland | OR |
| Elmer A. Sperry | Portland | OR |
| Elmira Victory | Portland | OR |
| El Morro | Portland | OR |
| Elon | Portland | OR |
| El Paso Natural Gas | Hermiston | OR |
| El Salvador Victory | Portland | OR |
| Emanuel Hospital | Portland | OR |
| Emba | Portland | OR |
| Emsfalke | Portland | OR |
| Ener Tec | Portland | OR |
| Enos A Mills | Portland | OR |
| Enrico Insom | Portland | OR |
| E O C - Physical Education Building | La Grande | OR |
| Equitable Building | Portland | OR |
| Erevan | Portland | OR |
