| Open Source Technology Group | 1 | 1 |
| Oomphinc | 1 | 1 |
| Open Lab | 1 | 1 |
| Open Explorer Beta Project | 1 | 1 |
| Opayweb | 1 | 1 |
| Ooorl Project | 1 | 1 |
| Open Source Point Of Sale Project | 1 | 1 |
| Open Projects Network | 1 | 1 |
| Oocomments | 1 | 1 |
| Open-classifieds | 1 | 1 |
| Open Conference Systems | 1 | 1 |
| Open Source Real-estate Script Project | 1 | 1 |
| Ooapp | 1 | 1 |
| Open Upload Project | 1 | 1 |
| Open | 1 | 1 |
| Opac Project | 1 | 1 |
| Oodie | 1 | 1 |
| Open Assessment Technologies | 1 | 1 |
| Open Source Development Team | 1 | 1 |
| Op-browser Project | 1 | 1 |