Vanessa Pepin is an art director and webdesigner working for the Quebec agency Deuxhuithuit. I discovered her works on Behance and her interactive design works are very impressive. They combine legibility, typographic precision and graphic identity with a clever use of recent HTML/CSS technologies.
An interesting example is her work for Le Clou theatre, which is outstanding on several point of vues : a very legible and user friendly layout, a nice use of responsive design techniques, and an interesting organization of content, especially on spectacles pages.

Munge Leung is an interior design firm located in Toronto, Canada. Founded in 1997, the firm specialized its work into interior design for the fields of hospitality, nightclubs, restaurants and original personnal houses. Between decoration, product design and architecture, the works contains a lot of beautiful details in a whole project, which allows the agency to work on huge proposals.
Pictures and link in the rest of the article.

Studio Dialog is a studio specialized into motion graphics located in Calgary, Canada. Founded in 2005 by Steve Seeley and Robb Thompson, the team's philosophy relies on finding creativity through collaboration. Even if they sometimes work on printed or webdesign projects, the most of their production is motion design, with realisations for clients like Mercedes, Rolex, and some TV Channels. If we had to define a style for the work of the studio, I should say their specialists for 'corporate' videos, sequences between advertising and information.
Some videos and links in the rest of the article.