| 370 | T | The Westin | The Westin Ottawa | Business |
| 28282 | T | Landscaping | Landscaping | Business |
| 307117 | T | Sharkey's Towing | Sharkey's Towing | Business |
| 309522 | T | NRC | National Research Council | Federal |
| 310317 | T | CN Rail Yard | CN Walkley Yard | Railroad |
| 311543 | T | Contractor | Contractor | Business |
| 312132 | T | Greely Sand | Greely Sand & Gravel | Business |
| 317731 | T | Cons Shuttle | Construction Worker Shuttle | Transportation |
| 320402 | T | United B P | United Building Products | Business |
| 323996 | T | School Bus | School Bus | Transportation |
| 326126 | T | Residential Plow | Residential Snow Plowing | Business |
| 331172 | T | Scaffold-Fast Op | Scaffold-Fast Main Operations | Business |
| 505611 | T | Garage | Maintenance Garage | Business |
| 532971 | T | CSL Group | CSL Group | Business |
| 533569 | T | Tomlinson | Tomlinson Construction | Business |
| 534584 | T | Worry Free | Worry Free Snowblowing | Business |
| 534904 | T | XmasLightsCanada | Christmas Lights Across Canada | Business |
| 537601 | T | Construction | Construction | Business |
| 537672 | T | Charter Buses | Charter Buses | Transportation |
| 537792 | T | PCH NLPH Winter | Northern Lights Parliament Hill - Winter Version | Business |
| 538028 | T | CCI/PCH | Canadian Conservatory Institute Staff | Business |
| 538436 | T | A1 Roofing | A1 Roofing | Business |
| 538953 | T | PT Service | Private Patient Transfer Service | Transportation |
| 539137 | T | Beau's | Beau's Sky Lounge - Dinner in the Sky | Business |
| 539254 | T | Charter Buses | Charter Buses | Transportation |
| 539756 | T | School Bus | School Bus | Transportation |
| 539860 | T | DND Events | Department of National Defense - Events | Federal |
| 539933 | T | Rental | Rental for Frosh Week | Business |
| 2310343 | T | Bldg Maintenance | Building Maintenance | Business |
| 3317539 | T | Construction | Construction | Business |
| 5360581 | T | Garden Business | Commercial Garden Business | Business |
| 5360781 | T | Hill Tour Coord | Parliament Hill Tour Coordination | Business |
| 5373092 | T | City Staff | City - Building Staff | Business |
| 5373751 | T | LRT Electrical | LRT Electrical Contractor | Business |
| 5375291 | T | Comm FuelDepot 1 | Commercial Fuel Depot Ch. 1 | Business |
| 5375292 | T | Comm FuelDepot 2 | Commercial Fuel Depot Ch. 2 | Business |
| 5386432 | T | Cleaning Staff | Cleaning Staff | Business |
