| Company | Category | Area | Address | Web | E-mail | Contact person |
| OBSIDIAN RIDGE CONTRACTING | Excavating Contractors | Oregon | 1975 SW 55TH ST, REDMOND, Deschutes, Oregon, 97756-9512, USA |
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| OBSIDIAN TRAIL | Social Services & Residential | Oregon | 409 NW FRANKLIN AVE, BEND, Deschutes, Oregon, 97701-2805, USA |
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Gregory Bodenhamer |
| OBSIDIAN TRAILS OUTDOOR SCHOOL | Schools | Oregon | 409 NW FRANKLIN AVE, BEND, Deschutes, Oregon, 97701-2805, USA |
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| OBSIDIAN WINDCHIMES | Mfg Misc Products | Oregon | PO BOX 82145, PORTLAND, Multnomah, Oregon, 97282-0145, USA |
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Debra Bloom |
| OBVIUS | Energy Conservation Prods-Whol | Oregon | 20811 NW CORNELL RD STE 700, HILLSBORO, Washington, Oregon, 97124-9706, USA |
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Jim Lewis |
| OBY BUILDING CO | Trade Contractor | Oregon | PO BOX 17008, SALEM, Marion, Oregon, 97305-7008, USA |
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