| Company Name | Categories | City | State | Main Phone # |
|---|
| O.A.R Cleaning, LLC | Site Construction | Redmond | OR | 541-678-1999 |
| O'Brien Design & Build | Specialties, Contractor | Bend | OR | 206-551-5953 |
| Oceana Designs OR | General Requirements, Finishes, Specialties | Redmond | OR | 541-668-6801 |
| Ochoa Brothers Construction LLC | Site Construction, Concrete, Contractor | Bend | OR | 541-693-3474 |
| Old Town Concrete Construction Co. | Concrete | Redmond | OR | 541-527-9815 |
| Olsen Design & Development Inc. | General Requirements, Contractor | Monmouth | OR | 503-838-1600 |
| Olson Heating & Air | Specialties, Mechanical | Sisters | OR | 541-504-0734 |
| Omega Media Solutions LLC | Specialties | Bend | OR- | 541-728-0758 |
| OR Concrete, Inc. | Concrete, Finishes | Bend | OR | 541-480-3674 |
| Oregon Equipment Service Corp | Equipment | Bend | OR | 541-388-2235 |