| ottawaregion.com | Ottawa - Canada's Advanced Technology Capital |
| ottawarealestate.org | Real Estate Board of Ottawa-Carleton |
| onteast.on.ca | Eastern Ontario Economic Development Commission |
| ocri.ca | Ottawa Centre for Research and Innovation |
| ottawafirefighters.org | Ottawa Professional Firefighters Association |
| osstf25.on.ca | OSSTF District 25 Ottawa-Carelton (Teachers) |
| oectaottawacarleton.on.ca | Ontario English Catholic Teachers Federation - Ottawa-Carleton Unit |
| ocetf.on.ca | Ottawa-Carleton Elementary Teachers Federation |
| fyiottawa.com | Ottawa Sun |
| envirocentre.ca | EnviroCentre |
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