Compare 13 SEO agencies with a published business address in Ontario, plus 16 serving the area remotely.
Most documented here: Local SEO (11) · AI Search Visibility (10) · Technical SEO (6) · Magento / Adobe Commerce (2) · Healthcare (1). Counts cover the agencies listed on this site, not the whole market.
Listed A–Z. Order is not a ranking or quality score.
Small, remote-first web design agency founded in Ottawa that sells SEO alongside design, with a stated one-SEO-client-per-market policy and particular depth in medical practices and trades.
Montreal-founded SEO and digital marketing agency with Canadian and US offices and a deep SEO menu: local, international, ecommerce, enterprise, audits and generative engine optimization.
Ottawa-based local SEO provider for small businesses in Canada and the US, selling month-to-month packages that bundle Google Business Profile work, citations and reporting, plus an AI…
Mississauga web design, software and digital marketing agency (est. 2015) with SEO pages for Mississauga, including local, technical and ecommerce SEO.
Toronto-headquartered SEO and digital marketing agency with a strong vertical focus on law firms and medical practices.
Mississauga digital marketing agency with dedicated SEO service pages for local, enterprise, national, ecommerce and B2B SEO.
Mississauga web design and ecommerce agency with a Toronto office and a broad SEO menu: local, ecommerce, enterprise and AI SEO pages, aimed at mid-size to large brands.
Digital marketing and web agency founded in 1996 by Joe Bongiorno, with offices in Ottawa, Toronto and Vancouver.
Toronto SEO agency founded by Dmitriy Shelepin, working with B2B and SaaS clients.
Greater Toronto Area digital marketing agency (Vaughan HQ, Mississauga office) with a national SEO page and many city SEO landing pages; sells tiered SEO plans on monthly terms.
Toronto-based search and digital marketing agency that sells SEO, link building, SEM and AI-search optimisation to Canadian and North American businesses.
Toronto-headquartered SEO agency serving Canada and the US remotely, with separate pages for technical, local, international, enterprise, ecommerce SEO, audits and AI SEO modules.
Full-service Toronto digital marketing agency running since 2001, with SEO, local SEO, paid media and web design under one roof.
They state they serve Canada but have no published address in Ontario.
