- Ambico Limited
 - Ottawa - Manufacturer of steel doors and frames for niche markets, including acoustic, bullet and blast resistant, stainless, lead-lined, and brass. - Amtech Electrical Services Ltd.
- Ottawa - Installation services in the National Capital Region and Hull, Quebec.
- Bowen Windows Inc.@
- Ottawa
- Canadian Construction Association (CCA)
- Ottawa
- CDS Building Movers
- Ottawa - Movers of heritage and historic buildings.
- Land Ark Custom Quality Homes
- Ottawa - Builder of custom quality homes in the Ottawa area. Every home is designed just for you and your family's lifestyle for a truly custom home.
- O.D.S. Marine Construction
- Ottawa - Specialising in marine construction and engineering services, commercial diving, boat, barge and tug rentals.
- StairWorld Inc.
- Ottawa - Manufactures curved and spiral stairs and parts, turnings, and columns.
- Urbandale Corporation
- Ottawa - Home builders, land developers and rental property owners.
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