- BC Greenhouses
 - Manufactures and sells hobby greenhouses kits and customized greenhouses built with aluminum frames and glass or polycarbonate glazing. Also provides greenhouse info centre and links. - Cedar-Built Greenhouses
- Manufacturers and suppliers of hand-crafted Western Red Cedar greenhouse kits, lean-to greenhouses, accessories, and customed designed greenhouses.
- Everlast Greenhouse Manufacturing and Easy Living Conservatories
- Manufacturer of greenhouses, kits, solariums, garden rooms, and commercial greenhouses. Ships throughout North America.
- Greenfield Hydroponics Systems Inc.
- Manufacturers of solar powered, portable greenhouses.
- Lexis Greenhouses and Supplies
- Sells Halls greenhouses, as well as garden and gift related products.
- Omni Structures International, Inc.
- Manufactures a complete line of commercial and custom freestanding greenhouses.
- Sun Country Greenhouse Company, The
- Builder and supplier of cedar and polycarbonate hobby greenhouse kits and plans.
- Westbrook Greenhouse Systems
- Supplier of commercial greenhouse structures for vegetable, flower and tree growers.
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