ProSEOBuilder was founded in Madrid in 2018 by a search engineer who spent a decade at large agencies watching clients get sold vanity metrics instead of business results. Rankings without revenue are decoration. We built this agency to deliver the opposite: measurable business growth traced directly to every SEO action we take.
Our team of ten includes technical SEO engineers, content strategists with journalism backgrounds, link builders with PR experience, PPC specialists certified in Google and Meta, and data analysts who turn numbers into strategy. We use enterprise-grade tools — Ahrefs, Semrush, Screaming Frog, Google Search Console API, Looker Studio — and we give every client full dashboard access. There are no black boxes here.
We work with SaaS companies, e-commerce brands, professional services firms, healthcare providers, and multi-location businesses across Spain and Europe. Over 5.1 million organic visits driven. 2,800+ keywords on page one. 97% client retention rate. Our clients stay because we do not just report rankings — we report revenue. And when something is not working, we say so and fix it. No excuses, no spin.
Revenue Over Vanity
We measure success in conversions and attributed revenue. Not keyword counts, not impressions, not "brand awareness." Revenue. Full stop.
Engineering Mindset
We treat SEO like software engineering: version control on strategies, A/B tests on content, load testing on site speed. Rigour, not guesswork.
Radical Transparency
Shared dashboards, full tool access, documented strategies. You see every keyword targeted, every link built, every euro of ad spend. No hiding.