M/Six
- Website
- https://www.msixagency.com/
The Montreal Gazette
- Website
- http://montrealgazette.com/
Medialliance
- Website
- http://medialliance.ca/
Magnite
- Website
- https://www.magnite.com/
Mintel
- Website
- https://www.mintel.com/
MightyHive
- Website
- https://mightyhive.com/
M32 Connect
- Website
- https://m32connect.com/
The Media Kitchen
- Website
- https://www.mediakitchen.com/
MiQ
- Website
- http://www.wearemiq.com/
McDonald’s Canada
MediaCom
- Website
- http://www.mediacom.com/en/home
Media Experts IPG Inc.
- Website
- http://www.mediaexperts.com/