Company lists · Data refreshed September 2026
Top 25 Contextual advertising agencies based in Canada
RevenueBase identified 3,396 contextual advertising agencies headquartered in Canada as of September 2026 and tracks 19,285 professional contacts across them, including 5,808 with verified work emails and 2,006 with mobile numbers. Toronto is the largest hub.
This list covers contextual advertising agencies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest contextual advertising agencies based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,617 contacts → | ||||
Indirect evidence “StackAdapt is the leading technology company that empowers marketers to reach, engage, and convert audiences with precision.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 2 | 484 contacts → | ||||
Indirect evidence “Numberly, Marketing Technologist, is a major player in the field of data marketing.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 3 | 246 contacts → | ||||
Partial evidence “Welcome to Accel-Digital, a leading brand in the Marketing and Advertising industry that offers top-notch assistance with ad operations support services.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 4 | 210 contacts → | ||||
Indirect evidence “Directive elevates the focus of B2B marketers from MQLs to qualified pipeline with a proven methodology that fuels the fastest growing B2B brands in the world.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 5 | 159 contacts → | ||||
Partial evidence “We plan, build, and optimize online advertising campaigns that reach millions of people on platforms like Google, Facebook, Instagram, YouTube, Pinterest, Snapchat and more.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 6 | 100 contacts → | ||||
Indirect evidence “Hello.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 7 | 87 contacts → | ||||
Indirect evidence “DFO Performance: Elevating E-Commerce & Lead Generation for Scalable Success At DFO Performance, we specialize in propelling brands to new heights with powerful, data-driven…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 8 | 84 contacts → | ||||
Indirect evidence “As established leaders in the digital marketing industry, we have been building brands and driving sales with cross-channel, data-driven approach’s for nearly two decades.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 9 | 78 contacts → | ||||
Partial evidence “Welcome to PromotEdge, an integrated marketing and digital advertising agency based in Kolkata, where creativity meets strategy to drive your brand’s success.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 10 | 74 contacts → | ||||
Partial evidence “BreezeMaxWeb manages Internet advertising campaigns for local businesses using GEO targeted search to increase our clients' online profile, ensuring maximum local exposure and…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 11 | 72 contacts → | ||||
Partial evidence “LoKnow works alongside you, or in the background, to create impactful digital advertising campaigns.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 12 | 71 contacts → | ||||
Indirect evidence “Major Tom is the next iteration of digital marketing, a full-service agency that’s been purpose-built to help organizations thrive in an increasingly complex landscape.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 13 | 71 contacts → | ||||
Indirect evidence “Elite Digital is an award winning digital agency with headquarters in Toronto, Canada.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 14 | 70 contacts → | ||||
Partial evidence “Ionik is a data-driven performance marketing technology company focused on assembling the most effective and complete suite of advertising, marketing and monetization solutions…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 15 | 68 contacts → | ||||
Indirect evidence “seoplus+ is a digital marketing agency serving clients globally.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 16 | 65 contacts → | ||||
Indirect evidence “Shaw/Scott was founded on the belief that there has to be a better way to provide world-class digital marketing.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 17 | 64 contacts → | ||||
Partial evidence “We provide cost-effective digital marketing services ranging from web development and search engine optimization to pay per click advertising and social media optimization.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 contacts → | ||||
Indirect evidence “Operatic is a creative digital agency that takes the guesswork out of growth through data-inspired strategy and tailored creative, technology, and marketing solutions.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 19 | 54 contacts → | ||||
Indirect evidence “1WEB is a fundraising growth partner for nonprofits and Islamic organizations.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 20 | 51 contacts → | ||||
Indirect evidence “Digitad is a digital performance agency based in Montreal.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 21 | 50 contacts → | ||||
Indirect evidence “Technology designed to put our clients in front of their audience with strategically defined locations, combined with the very best creative innovations & assets to fuel the…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 22 | 43 contacts → | ||||
Indirect evidence “GlobalWide Media (GWM), a leader in data-driven digital marketing, provides premium media solutions for the world’s leading brands and agencies.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 23 | 43 contacts → | ||||
Indirect evidence “What We Do: Advesa is a full-fledged B2B digital marketing agency providing services from consulting, UX/UI design, lead generation, and app development.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Indirect evidence “We’re a full-service agency helping transform brands through our expertise in strategy, media, and effective creative.” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
| 25 | 42 contacts → | ||||
Partial evidence “Zia, an agency that is passionate and enthusiastic about the world of advertising & marketing, what's current and how we can make a difference through innovative thinking, client…” Source: RevenueBase Database · checked Sep 1, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: contextual advertising agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names contextual advertising agencies.
- Partial evidence
- Its own public description names part of contextual advertising agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name contextual advertising agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,396 contextual advertising agencies based in Canada
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Contextual advertising agencies based in Canada at a glance
As of Sep 1, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among contextual advertising agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Canada whose own description of what they do matches “contextual advertising agencies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names contextual advertising agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among contextual advertising agencies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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
- Every listed company carries at least one verified work email, 5,808 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Contextual advertising agencies by metro
- Contextual advertising agencies in Toronto810
- Contextual advertising agencies in Vancouver307
- Contextual advertising agencies in Montreal275
- Contextual advertising agencies in Calgary198
- Contextual advertising agencies in Mississauga112
- Contextual advertising agencies in Edmonton110
- Contextual advertising agencies in Ottawa99
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names contextual advertising agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many contextual advertising agencies are there based in Canada?
RevenueBase identified 3,396 contextual advertising agencies headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.
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 agencies?
Toronto leads with 810 headquartered companies, followed by Vancouver (307) and Montreal (275).
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 5,808 verified decision-maker contacts tracked across these 3,396 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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