COSEOM
Barcelona, SpainDigital marketing agency
Barcelona-headquartered B2B performance marketing agency with a San Francisco office, focused on international SEO and paid media for SaaS and technology companies.
SEO agencies
508 researched SEO agencies. Filter by location, service, industry, platform and published budget.
Listed A–Z. Order is not a ranking or quality score.
Estudio34
Barcelona, SpainDigital marketing agency
Barcelona digital marketing agency with an SEO practice covering audits, link building and SEO-safe website migrations, plus paid social and advertising services.
Rebeldes Online
Barcelona, SpainDigital marketing agency
Barcelona digital agency and certified Webflow partner whose SEO service covers technical work, content, local SEO and link building, and which can apply technical fixes directly on…
SEOCOM
Barcelona, SpainSpecialist SEO agency
Barcelona-headquartered SEO and GEO agency with a second office in Madrid.
+190% organic traffic after full penalty recovery for Gallina Blanca · agency-reported
SeoServicios
Barcelona, SpainSpecialist SEO agency
Barcelona SEO agency offering technical, local, e-commerce and international SEO plus link building, serving businesses across Spain and international B2B clients.