Esteve Castells Personal Site - Independent SEO Consultant & Growth Advisor

Here's how I'm different from other SEO experts

Globally recognized

I have notably identified and reported critical bugs in the Google crawler.

My SEO methods have been featured at Europe's top conferences like BrightonSEO. But don't worry, I won't bore you with technical jargon (unless you're into that sort of thing).
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Trusted internationally, I predominantly secure projects through referrals, thanks to my reliable and superior outcomes.

Battle-hardened

My SEO experience spans the full spectrum: from sites with virtually no indexed pages to those with over 250 million.

I have optimized websites that receive over 4 million daily clicks from Google, and have served for 5 years as the Head of SEO for Adevinta, a leading tech company in Europe, with monthly organic visits exceeding 500 million.

Whatever your SEO challenge, I’ve likely encountered and resolved it.

Directly from me to you

When you work with me, you work directly with someone who's led SEO at scale.

No account managers, no intermediaries, no junior SEO or intern interfacing - just straightforward SEO expertise from someone who's grown international platforms.

Here's some things I can do for you

Let’s work together to grow your business. Whether you need help with SEO, marketing, deploying AI in your company, showing up in AI responses such as ChatGPT or Perplexity, or something else, I’m here to support you every step of the way.

SEO Consulting

I know what it takes to get your website seen by the right people. I've worked with the world's largest marketplaces and classifieds sites, and SaaS companies to boost their traffic and visibility. If you're dealing with a large website or complex SEO challenges, I can help you cut through the noise and get real results.

Growth Advisory & Fractional CMO

Need a strategic partner to help grow your business? I work with startups and scaleups to turn good ideas into great results. Companies like Manglai have trusted me to guide their growth as a Fractional CMO. I'll help you spot opportunities, make smart marketing decisions, and scale your business the right way.

GEO, AEO & AI Search Optimization

If you're seeing your traffic from AI search such as ChatGPT, Gemini, Grok, AI Mode or Perplexity grow, and want more, reach out.

I've developed leading research and thought leadership about this, you can learn some insights and a guide to GEO & AEO.

SEO is evolving and every brand I work with wants to get this done by yesterday 😀

Beyond boundaries

I don't like putting work in boxes. Over the years, I've helped companies with all sorts of projects - from marketing and data analysis to product development and tech solutions. Need help with market research? Looking at M&A opportunities or integrations? You want a training focused on upskilling your team on using AI? Want to try something different? Let's talk about it and find a way forward that makes sense for your business.

But don't just take my word for it

Here's what some pretty awesome people have said about working with me (and feel free to ask for a reference!)

"I’d highly recommend Esteve. He’s probably the top marketplace SEO expert in all of Europe, with a rock solid track record. He’s a great guy, business-focused, zero-bullshit, and the real-deal kind of pro that’s so difficult to find. I’ve had the pleasure of working with him and can personally vouch for his expertise and professionalism."

Pere Quintana

CMO at Fotocasa & Habitaclia (Adevinta)

"Esteve has had a transformational impact at YunoJuno. His SEO expertise is second to none. Deeply insightful and navigating complex challenges with ease. Esteve is a rare find, combining technical acumen with commercial flair and a relentless drive for impact."

Runar Reistrup

CEO at YunoJuno

"Collaborating with Esteve on various projects has been a pleasure. He is a versatile professional with extensive experience in large-scale projects. Esteve is hands-on, always engaging with teams and exploring new tech innovations."

Jaume Fontal

Co-Founder & CPTO at Manglai

"Esteve's SEO expertise was key to the early success of Labhouse's new website, Invoice Fly. He drove our SEO and SaaS content strategy with a data-driven approach. Highly recommended!"

Roger Howroyd

SEO Specialist at Labhouse

"Esteve is probably one of the best professionals I have met in my career. His experience, ambition and professional trajectory make him a reference in his field."

Oriol Torres

Co-Founder & CEO at Menorca Republik

"I had the pleasure of working with Esteve, an exceptional SEO expert. His deep knowledge and strategic approach led us to over 30 million page views per month for our site, Psicología y Mente. He is also a natural leader, driving teams efficiently to achieve outstanding results."

Bertrand Regader

Founder at Psicología y Mente

"Esteve is one of the biggest SEO experts in the industry I have ever worked with in my whole career. Thanks to his great ideas, our SEO improved more than 115% YoY, resulting in millions of additional page views."

Vladan Paunovic

Senior Engineering Manager at Shpock

"Esteve is the most impactful leader I had the chance to work with. I feel privileged that I had the possibility to work with Esteve. He makes a difference and enables others to do the same."

Norbert Hires

Head of SEO at Pet Media Group

Advanced SEO & Growth Consulting for Ambitious Brands

Here's how I'm different from other SEO experts

Globally recognized

Battle-hardened

Directly from me to you

Here's some things I can do for you

Learn more about my approach by watching my public speaking gigs

Explore my SEO insights and resources

Interviews

Written Publications

I have been featured in Leading Publications

But don't just take my word for it

Let's Talk