COMMB’s Mandate

COMMB is the national, not-for-profit, organization for the Canadian OOH industry comprised of advertisers, advertising agencies and OOH companies.

COMMB is responsible for developing and verifying audience measurement methodologies, providing audience data and planning resources, marketing and communications, government relations and member services.

Why you can trust COMMB


COMMB’s research processes are transparent. Our methodologies are made available to all COMMB members and provide both an industry standard and a consistent, common way to evaluate OOH media.


Accuracy starts with “independence” and that means COMMB measurement is developed at arm’s length from OOH media companies.

COMMB’s Research Committee – an important “policing body” of research and media experts – ensures that all methodologies are thoroughly analysed for integrity, precision and the highest standards of research practice.

Moira Gilderson “I trust COMMB numbers – they’re based on industry-approved common methodology and currency which are essential for media planning. There’s no time to evaluate OOH properly without COMMB.”

Moira Gilderson
VP, Associate Media Director
Dentsu Media

What COMMB delivers

  • COMMB Data Report – Software tool for viewing COMMB data in various report formats. OOH advertising face counts and circulations are available for more than 280 markets, 45 OOH products, and 25 OOH companies collectively representing over 63,000 outdoor and place-based advertising faces or screens
  • COMMBNavigator® – Planning and reach-frequency analysis software that adds insight and productivity to the outdoor advertising planning process.
  • COMMB Audit – A continuous program that verifies, through synchronization technology, the accuracy of COMMB data used by OOH company members for trading purposes.
  • COMMB School – a training program offering free “webinars” to Members to help understand process of measuring and COMMB’s software.

To access OOH Members’ websitesGo to the OOH Members tab located just under the COMMB logo.