Company lists · Data refreshed September 2026

Top 25 Marketplace SEO agencies based in Canada

Name: Marketplace SEO agencies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 1,031 companies tracked

RevenueBase identified 1,031 marketplace SEO agencies headquartered in Canada as of September 2026 and tracks 4,828 professional contacts across them, including 1,100 with verified work emails and 369 with mobile numbers. Toronto is the largest hub.

This list covers marketplace SEO 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

1,031Companies

4,828Contacts tracked

1,100Verified emails

369Mobile numbers

Unlock all 1,031 companies Free signup · no credit card · 500 free credits

The 25 largest marketplace SEO agencies based in Canada

Ranked by team size

Top 25 of 1,031 marketplace SEO agencies based in Canada, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marketplace SEO agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Seller InteractiveIndirect evidence	Markham, ON, CanadaHQ checked Sep 5, 2026	51-200	252
	“Canada’s #1 leader in the Digital Marketing industry.” Source: company website · checked Sep 5, 2026
2	Techwyse Internet MarketingIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	51-200	233
	“If your business isn't generating consistent leads online, the problem usually is your digital presence.” Source: company website · checked Sep 5, 2026
3	Publi-7Indirect evidence	Mirabel, QC, CanadaHQ checked Sep 5, 2026	11-50	112
	“Publi-7 Communications est une agence de marketing interactif et de communication créée par l'ancien directeur général du magazine « Chez toît » appartenant à Quebecor Media.” Source: company website · checked Sep 5, 2026
4	AMZ ONE StepIndirect evidence	Edmonton, AB, CanadaHQ checked Sep 5, 2026	51-200	86
	“We are a group of experienced e-commerce experts with an astute understanding of the online business framework’s dependence on quality-driven listing creation and optimization.” Source: company website · checked Sep 5, 2026
5	The Aber GroupIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	69
	“Whether you are an experienced Internet marketer looking for new ways to reach your audience, a direct marketer exploring how the Internet can be a profitable source of leads or…” Source: company website · checked Sep 5, 2026
6	SeoplusIndirect evidence	Ottawa, ON, CanadaHQ checked Sep 5, 2026	51-200	69
	“seoplus+ is a digital marketing agency serving clients globally.” Source: company website · checked Sep 5, 2026
7	Shyft DigitallyIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	55
	“Your problem isn’t getting new customers, it’s building a predictable system to get new customers.” Source: company website · checked Sep 5, 2026
8	DigitadIndirect evidence	Montréal, QC, CanadaHQ checked Sep 5, 2026	51-200	50
	“Digitad is a digital performance agency based in Montreal.” Source: company website · checked Sep 5, 2026
9	Konstruct DigitalPartial evidence	Calgary, AB, CanadaHQ checked Sep 5, 2026	11-50	49
	“At Konstruct, we're passionate about delivering growth for B2B clients that changes business trajectories through SEO, paid media, and content marketing.” Source: company website · checked Sep 5, 2026
10	ReputedIndirect evidence	Edmonton, AB, CanadaHQ checked Sep 5, 2026	n/a	44
	“Reputed is a Full Service Digital Marketing Agency that specializes in Online Reputation Management.” Source: company website · checked Sep 5, 2026
11	Sterling SKY INCIndirect evidence	Uxbridge, ON, CanadaHQ checked Sep 5, 2026	11-50	38
	“Sterling Sky was founded by Joy Hawkins in 2017.” Source: company website · checked Sep 5, 2026
12	Agence LeadstreamIndirect evidence	Montréal, QC, CanadaHQ checked Sep 5, 2026	11-50	38
	“Notre agence s'est taillée une solide réputation en matière de positionnement, d'identité, et de visibilité en ligne.” Source: company website · checked Sep 5, 2026
13	SEO BrothersPartial evidence	Bedford, NS, CanadaHQ checked Sep 5, 2026	51-200	37
	“Welcome to SEO Brothers, the premier choice for white-label SEO services and direct SEO services for local businesses.” Source: company website · checked Sep 5, 2026
14	Bloom Digital MarketingIndirect evidence	North Vancouver, BC, CanadaHQ checked Sep 5, 2026	n/a	34
	“Bloom Digital Marketing (Bloom Media Inc.) is a Vancouver-based digital marketing agency founded in 2006.” Source: company website · checked Sep 5, 2026
15	Bubbleup Marketing CorpPartial evidence	Edmonton, AB, CanadaHQ checked Sep 5, 2026	11-50	32
	“Businesses today are looking for marketing strategies that produce results at a lightning-fast pace and will give their business the edge in an ever-changing marketplace.” Source: company website · checked Sep 5, 2026
16	Bluehat MarketingIndirect evidence	Montreal, QC, CanadaHQ checked Sep 5, 2026	11-50	32
	“BlueHat Marketing is a leading company in website design and development, search engine optimization, social media and online marketing.” Source: company website · checked Sep 5, 2026
17	First Rank SEOIndirect evidence	Winnipeg, MB, CanadaHQ checked Sep 5, 2026	11-50	31
	“The purpose of First Rank is to help businesses generate leads from their websites.” Source: company website · checked Sep 5, 2026
18	WebtmizeIndirect evidence	Montreal, QC, CanadaHQ checked Sep 5, 2026	11-50	31
	“Webtmize is a Montreal-based digital marketing agency providing consulting services to local and international businesses.” Source: company website · checked Sep 5, 2026
19	RankworksIndirect evidence	Montreal, QC, CanadaHQ checked Sep 5, 2026	11-50	31
	“RankWorks \| AI Growth Intelligence Platform RankWorks helps marketing, revenue, and GTM teams turn fragmented data into clear, prioritized action.” Source: company website · checked Sep 5, 2026
20	EmarketselectIndirect evidence	Mississauga, ON, CanadaHQ checked Sep 5, 2026	51-200	29
	“We believe in the impact of digital marketing and all its possibilities.” Source: company website · checked Sep 5, 2026
21	Connection IncorporatedPartial evidence	Guelph, ON, CanadaHQ checked Sep 5, 2026	11-50	29
	“We Bring You More Customers - Our SEO services rank your business in front of customers that are actively searching for what you have to sell.” Source: company website · checked Sep 5, 2026
22	Local SEO SearchPartial evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	29
	“Local SEO Search Inc.” Source: company website · checked Sep 5, 2026
23	CMC Digital Marketing AgencyIndirect evidence	Toronto, ON, CanadaHQ checked Sep 5, 2026	11-50	28
	“CMC Canadian Marketing Agency is located in Toronto.” Source: company website · checked Sep 5, 2026
24	MY Little BIG WEB Agence WEBPartial evidence	Montréal, QC, CanadaHQ checked Sep 5, 2026	11-50	27
	“My Little Big Web est une équipe de spécialistes en conception web, optimisation pour les moteurs de recherche (SEO) et publicité en ligne.” Source: company website · checked Sep 5, 2026
25	Cayk MarketingIndirect evidence	Calgary, AB, CanadaHQ checked Sep 5, 2026	11-50	21
	“Most marketing feels like a money pit, and for many growing companies, that's exactly what it becomes: budget spent, results unclear, agency relationship going nowhere fast.” Source: company website · checked Sep 5, 2026

Showing 25 of 1,031 marketplace SEO agencies based in Canada

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Marketplace SEO agencies based in Canada at a glance

As of Sep 5, 2026

1-10Median size (employees)

TorontoLargest hub · 221 HQs

369Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

753

11-50

243

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

1,029

31–60

61–90

90–180

180+

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 marketplace SEO agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “marketplace SEO agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among marketplace SEO 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 an evidence 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, 1,100 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 5, 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.

Marketplace SEO agencies by metro

Marketplace SEO agencies in Toronto221
Marketplace SEO agencies in Montreal85
Marketplace SEO agencies in Vancouver78
Marketplace SEO agencies in Calgary64
Marketplace SEO agencies in Edmonton40
Marketplace SEO agencies in Mississauga37

Frequently asked

How many marketplace SEO agencies are there based in Canada?

RevenueBase identified 1,031 marketplace SEO 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?

Seller Interactive, headquartered in Markham, tops this list with the largest team on record.

Which city has the most marketplace SEO agencies?

Toronto leads with 221 headquartered companies, followed by Montreal (85) and Vancouver (78).

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 1,100 verified decision-maker contacts tracked across these 1,031 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 5, 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 SmartSearch, 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.