O.D.S. Marine

6866 McKeown Dr., Greely, ON

We are a full-time, professional commercial diving and marine company. We have been in business since 1981 providing a wide range of water-related services including underwater video inspections, flow testing, environmental monitoring, bottom ...

Oceanic Consulting Corporation

401-95 Bonaventure Ave., St. John's, NL

Naval Architects and Consulting Engineers. Oceanic Consulting Corporation is an ocean engineering firm based in eastern Canada and providing commercial services to the international marketplace. Oceanic provides services in marine performance ...

O'Connor Tanks Ltd.

15 Bermondsey Rd., East York, ON

O'Connor Tanks Limited has been in a business for over 50 years. We have evolved into a highly professional international custom steel fabricator. We build pressure vessels, towers, columns, ducting and storage tanks, in accordance with API, ...

Ogilvie Construction

22 Dark Island Lane, Gananoque, ON

Omega Contractors Inc.

4104 Breck Ave., London, ON

Sewers, Watermains, Roads, Completed Subdivisions

OMER BOUCHARD & FILS INC.

5271, av. Du Norot, Alma, QC

Ontario Building Solutions

200-28 Pollard Cres, Ajax, ON

Indoor air quality testing Airflow testing and balancing 3rd party HVAC investigation Building operation analysis TSSA compliance assistance. Custom Maintenance programs. Professional building operation.IAQ problem solving IAQ Indoor air ...

Ontario Door Controls Ltd.

319 Neptune Cres., London, ON

Install and Service Automatic Door Controls

Ontario Panelization

520 Clarke Rd., London, ON

Construction (Exterior Finishing)

Orchard A-1 Stop Shop Heating & Cooling

2074 River Rd., London, ON

Heating, Ventilating, Air Conditioning, Energy Management, Refrigeration Electrical, Plumbing and Sheet Metal