Hello,
There are many companies that specialize in solar energy listed in our environmental Marketplace at http://www.canadianenvironmental.com/biz_serv/ (or click on 'Marketplace' in the menu to the left)
Do a keyword search in the Marketplace for 'solar' or look in the category on energy efficiency. You will find dozens of companies listed and direct links are provided to their websites.
Best regards,
Editor