Company lists · Data verified August 2026

Top 25 Contextual advertising platforms based in Canada

There are 188 contextual advertising platforms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 4,024 professional contacts across them, including 2,039 with verified work emails and 844 with mobile numbers. Toronto is the largest hub.

This list covers contextual advertising platforms headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

188Companies
4,024Contacts tracked
2,039Verified emails
844Mobile numbers
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The 25 largest contextual advertising platforms based in Canada

Ranked by team size
Top 25 of 188 contextual advertising platforms based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1StackadaptToronto, ON1,001-5,0001,6171,084
2System1Guelph, ON201-500301209
3CrakmediaMontreal, QC51-200180105
4Thrive DigitalVancouver, BC51-20015954
5MonetizemoreWhite Rock, BC51-2009923
6OnelocalToronto51-2007818
7LoknowVancouver, BC51-2007246
8IONIKToronto, ON201-500705
9OptableMontreal51-2006138
10Outedge Media CanadaToronto, ON201-500506
11KleverMontreal, QC51-2004231
12Mundomedia LTDRichmond Hill, ON51-200422
13AcquisioBrossard, QC11-50397
14WAR RoomVancouver, BC11-503820
15ResponsiveadsVancouver, BC11-503619
16JBF Digital MarketingMississauga, ON51-200288
17CyberplexToronto, ON51-200282
18TrafficjunkyMontreal, QC201-500272
19Native Ads, INCVancouver, BC11-502410
20GolootMontreal, QC11-502210
21brax.ioVancouver, BC11-50221
22SourceknowledgeMontreal, QC11-50206
23a4g.comMontreal, QC11-50192
24Cue7ven Digimark Private LimitedMississauga11-50162
25Connected InteractiveToronto, ON11-501512

Showing 25 of 188 contextual advertising platforms based in Canada

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Contextual advertising platforms based in Canada at a glance

As of Aug 28, 2026
1-10Median size (employees)
TorontoLargest hub · 60 HQs
844Contacts with mobile numbers
2Emails re-verified in last 30 days

Companies by employee count

1-10
102
11-50
60
51-200
19
201-500
5
1,001-5,000
1

Contextual advertising platforms by metro

MetroCompanies
Contextual advertising platforms in Toronto60
Contextual advertising platforms in Montreal28
Contextual advertising platforms in Vancouver23
Contextual advertising platforms in Mississauga6
Contextual advertising platforms in Calgary5
Contextual advertising platforms in Ottawa5
Contextual advertising platforms in Vaughan4
Contextual advertising platforms in Victoria4

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “contextual advertising platforms”, with match quality audited by blind human judging, and headquartered in Canada.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many contextual advertising platforms are there based in Canada?

There are 188 contextual advertising platforms headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Stackadapt, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most contextual advertising platforms?

Toronto leads with 60 headquartered companies, followed by Montreal (28) and Vancouver (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,039 verified decision-maker contacts tracked across these 188 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.