Company lists · Data refreshed September 2026

Top 13 B to b marketing agencies based in Guelph, Canada

Name: B to b marketing agencies based in Guelph, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 35 companies tracked

RevenueBase identified 35 b to b marketing agencies headquartered in Guelph, Canada as of September 2026 and tracks 125 professional contacts across them, including 46 with verified work emails. Across Canada, Toronto is the largest hub for this category (1,632 companies); Guelph has 35.

This list covers b to b marketing agencies headquartered in Guelph, 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 23, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

35Companies

125Contacts tracked

46Verified emails

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The 13 largest b to b marketing agencies based in Guelph, Canada

Ranked by team size

Top 13 of 35 b to b marketing agencies based in Guelph, Canada, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to b to b marketing agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Connection Incorporated	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	29 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
2	SWAY	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	11 contacts →
	Partial evidence “We are more than a marketing agency.” Source: RevenueBase Database · checked Sep 23, 2026
3	M-Pro	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	8 contacts →
	Indirect evidence “M-PRO international business solutions strive to make clients' businesses visible and successful on new markets.” Source: RevenueBase Database · checked Sep 23, 2026
4	Topsite	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	7 contacts →
	Indirect evidence “Creative solutions that drive meaningful change.” Source: RevenueBase Database · checked Sep 23, 2026
5	The Letter M	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	6 contacts →
	Partial evidence “The Letter M is a Guelph-based marketing and branding agency that strengthens communities and businesses through high-quality strategy, brand, storytelling, design, and…” Source: RevenueBase Database · checked Sep 23, 2026
6	Zero In Digital Advertising	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	6 contacts →
	Partial evidence “Zero In Digital Marketing Agency is a certified Google Partner, specializing in Digital Advertising.” Source: RevenueBase Database · checked Sep 23, 2026
7	tekside.io	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	11-50	5 contacts →
	Partial evidence “Tekside is a marketing and technical services company that helps clients enable and activate their marketing programs.” Source: RevenueBase Database · checked Sep 23, 2026
8	Freshleaf Marketing	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	5 contacts →
	Partial evidence “Founded in 2019, FreshLeaf Marketing supports life science companies with fractional marketing director services and project-based marketing consulting to help companies achieve…” Source: RevenueBase Database · checked Sep 23, 2026
9	Banja Solutions	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	5 contacts →
	Partial evidence “Banja Solutions has evolved from a website development company to a full service marketing, branding, social networking solution for your business.” Source: RevenueBase Database · checked Sep 23, 2026
10	Search Warrant Digital Marketing	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “You can have 24x7 access to your results, simple explanations, and high performance too.” Source: RevenueBase Database · checked Sep 23, 2026
11	AD OPS House	Partial evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	3 contacts →
	Partial evidence “Ad Ops House takes the top level skills and knowledge from career digital marketing professionals and makes them available to the business public.” Source: RevenueBase Database · checked Sep 23, 2026
12	The SEM Guys	Partial evidence	Guelph, CanadaHQ checked Sep 23, 2026	1-10	1 contacts →
	Partial evidence “SEMGUYS was started by two digital marketing veterans that have a combined 14+ years experience.” Source: RevenueBase Database · checked Sep 23, 2026
13	The Wellness Marketer	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 23, 2026	1-10	1 contacts →
	Indirect evidence “The Wellness Marketer is passionate about working hands-on with local businesses to encourage growth and establish a visual identity.” Source: RevenueBase Database · checked Sep 23, 2026

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: b to b marketing 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 b to b marketing agencies.
Partial evidence: Its own public description names part of b to b marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name b to b marketing 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 13 of 35 b to b marketing agencies based in Guelph, Canada

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B to b marketing agencies based in Guelph, Canada at a glance

As of Sep 23, 2026

36.8%Verified-email coverage

3.6Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

Email recency for this list is measured across the whole Canada list rather than for Guelph, so it is reported there. Company counts and contact totals on this page are exact for Guelph, over 35 companies.

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 b to b marketing 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 Guelph, Canada whose own description of what they do matches “b to b marketing 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 b to b marketing 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 b to b marketing agencies, and records with no verified work email. Companies headquartered outside Guelph 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, 46 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 23, 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.

B to b marketing agencies by metro in Canada

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 b to b marketing 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 b to b marketing agencies are there based in Guelph, Canada?

RevenueBase identified 35 b to b marketing agencies headquartered in Guelph, 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?

Connection Incorporated, headquartered in Guelph, tops this list with the largest team on record.

Which city in Canada has the most b to b marketing agencies?

Toronto leads Canada with 1,632 headquartered companies, followed by Vancouver (586) and Montreal (545). Guelph has 35.

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 46 verified decision-maker contacts tracked across these 35 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 23, 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.