| Business | Founded | Contacts |
|---|---|---|
| Ottawa District Labor Council | 1872 | 3 |
| Canadian Museums Association / Association des musées canadiens | 1947 | 32 |
| Canadian Federation of Friends of Museums | 1977 | - |
| Idon Corporation | 1990 | 1 |
| Cupe | 1991 | - |
| Capital Heritage Connexion Patrimoine de la Capitale | 1992 | 6 |
| Canadian Union Of Postal Workers | 1993 | 2 |
| Imperial Parking Limited | 1995 | 1 |
| Alliance Employees Union | 1999 | 1 |
| Vista Medical Services & Property Management Inc | 1999 | 1 |
| Labour Community Svc | 2000 | 1 |
| Bosada & Associates | 2003 | 1 |
| James X.P. McGillivary | 2003 | 2 |
| Temprano & Young Architects Inc | 2003 | 1 |
| Canadian Art Museum Directors' Organization | 2004 | 12 |
| Comor Emily | 2004 | 1 |
| Whittaker International | 2004 | - |
| Ottawa Valley Coin | 2005 | - |
| Association Canadienne Des Jardins Zoo | - | - |
| Association Canadienne Pour La Conserv | - | - |
| Association Des Musees Canadiens | - | - |
| B James McGillivary Barrister | - | - |
| CUPE Local 5500 | - | - |
| Canadian Association for Conservatio | - | - |
| Conseil De Planification S | - | - |
| Law Offices of Leonard Max QC | - | - |
| Musicians' Association Local 180 | - | 3 |
| Ottawa Community Loan Fund | - | 2 |
| Max Leonard QC | - | - |
| Canadian Friends Of Hermitage | - | 1 |
| Comor & Chetty | - | - |
| Fintan Lee S C & Man Yuke F Law Firm | - | - |
| Impark | 2008 | - |
| Rdee Ontario | 2008 | - |
| Ultimate Tactics | - | 1 |
| Department of National | - | 1 |
| Ticket Defence Program | - | 1 |
| Wirehead Corporation | - | - |
| Claire Tremblay LLM | - | - |
| ICOM Canada's | - | - |
| Law Office of Claudius Croiset Van Uchelen | - | - |
| Nielsen Law Office | - | - |
| Grenier Law (& Notary Public) | - | 1 |
| Law Office of Claire Tremblay | 2017 | - |
| Junior Achievement Of Ottawa | 2019 | - |
| KidsFutures Inc | 2019 | - |
| Magas Law Office | 2019 | - |
| Michael B Oliveira | 2019 | 1 |
| Communications Energy | 2020 | 1 |
| Law Office Of Jane O'Neill | 2020 | - |
| Condo Law Office | - | - |
| Labonte Paralegal Services | - | - |
| Labontelegalresearch | - | - |
| The Ottawa CED Network | - | - |
| Colonnade Building | - | - |
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