Full SEO execution
Technical, content and backlinks running with my team — not just a report you execute yourself.

SEO Consulting
I analyze your website and your market and build a positioning system with you that brings clients in a sustained way. I don't chase vanity metrics: I rank the words that buy, convert that traffic and measure every euro. SEO that grows the business, not just the traffic chart — working Google and the AIs (GEO) as one.
USABest organic traffic growth achieved
Companies ranked on Google
Verified reviews
Ranked in ChatGPT and AIs
The Problem
Most SEO strategies chase traffic for traffic's sake: articles nobody searches, keywords with no commercial intent and reports full of rankings that don't sell. There's movement, there are charts going up — but the phone doesn't ring.
Traffic and impressions
Goes up every month
Real clients and sales
Stays flat
The SEO that grows a business is different: ranking the words your client types when they want to buy, earning real authority and converting that traffic into clients. That's why I work SEO connected to the business, not to vanity metrics — and I integrate it with AI (GEO), because today Google and ChatGPT decide together who shows up.
Does your SEO bring visits or clients?
Approach
I audit your site in depth: technical SEO, content, authority (backlinks) and search intent. I don't optimize for the sake of it — I prioritize the pages and keywords that can bring clients, and I work both Google (classic SEO) and citability by AIs (GEO: ChatGPT, Gemini, Perplexity).
We work toward one clear goal: getting you onto the first page of Google and into the answers of AIs like ChatGPT and Gemini.
Ready for SEO that brings you clients?
Plans
Both include the full analysis, all the tools and the system set up. The difference is who executes it.
We analyze your whole business and set up the complete system. Your team executes it, with us alongside every month.
Everything in the consulting plan, but we execute it with you — daily, until it brings clients.
Neither plan is better than the other: it depends on your moment and your team. In a consultation we help you choose the one that fits you.
Wherever you start, you first get a prior analysis of your website: how it is today, how far it can go and how difficult it is. No commitment.
We position you where your clients search for you
Differentiation
What I'm NOT
Promises rankings. Produces by volume. Measures impressions.
What I AM
Starts with the business. Ranks what buys. Measures clients.
I accept a maximum of 5 new projects per month to guarantee real dedication, depth and measurable results. If your website is the next one, let's talk.
Real Cases
Measurable organic growth, with Search Console figures — not promises.

From a neighborhood store invisible on Google to organic presence across Spain, with backlinks in outlets like Xataka, El Español and La Razón.
Law firm“We increasingly have more clients than we can handle”
Leticia and Mónica went from depending on referrals to a stable acquisition system. +800% organic traffic in twelve months.
View case
Accounting firm · Mexico City“From zero to 756 leads and the first page of Google”
Juan Pablo and Adrián went from 0 to 756 leads, from page 2 to first position on Google, and from referrals to a self-running acquisition system.
View case
Aesthetic medicine clinic · Barcelona“I like their professionalism and the results are very good”
Paula and Claudio had a top-tier clinic with zero digital visibility. We built the full strategy: medical content, campaigns and active acquisition.
View caseCould your website be the next success story?
Bonus · Implementation
On top of the consultancy, together with my team I give you the option to execute the entire SEO — technical, content and authority — and integrate it with an AI CRM that measures which keyword brings you each client. You see the real ROI of SEO from your phone, without opening an Excel.
TFB Assistant
Online · AI
Technical, content and backlinks running with my team — not just a report you execute yourself.
Articles and money pages that rank and that AIs cite, published and measured month over month.
You see which keyword brings each lead and each sale in real time. You ask, and AI answers.
24/7
Measure your SEO ROI from your phone
Want us to execute it too?
Recognition
The Funnel Box was recognized within the OpenAI Partner Network as a Select Partner — the tier that distinguishes firms with demonstrated ability to deliver AI solutions in real enterprise environments.
Read the announcement
The Funnel Box's application to Forbes Business Council was pre-approved on merit and business track record — Forbes' curated community for business leaders.

SEO Consultant
Founder of The Funnel Box, Brainstorming Films, Veribox and Echoroutes
Let me tell you who I am and why you should choose me
The difference between ranking and selling rarely lies in how many articles you publish, but in whether you target what your client actually searches for.
I've spent 10+ years growing companies, and I always work SEO inside the business: I've used it to take firms, e-commerce and clinics from invisibility to Google's first page on their key terms.
That's when I understood the key: the problem isn't publishing more, it's the lack of direction.
Many sites produce more content, buy more links and grow impressions, but with no commercial intent behind it. That creates traffic that doesn't convert and burned budget.
That's why I work in a different way.
Not as an article factory.
Not as a provider who sells you pretty rankings.
But as a partner who steps inside the business, understands how it gets clients and uses SEO to bring the right ones.
If we work together
It's not about more traffic.
It's about the traffic that brings you clients.
Google reviews
Pedro Miralles
Enhorabuena a Gonzalo y su equipo por el excelente trabajo que están realizando con mi empresa. Su colaboración ha supuesto un trampolín en el desarrollo del marketing digital del despacho, sin duda, la mejor decisión que he tomado. Gonzalo lo hace a la primera, es un gran equipo humano, siempre pendiente de lo que necesitas. 100% recomendable.
Jelena Marjanovic
Conocí a Gonzalo cuando buscaba un especialista en marketing digital que me ayudara a expandir mi negocio de Formación y Desarrollo. Gonzalo realizó un estudio completo de mi negocio y creó una estrategia a corto y largo plazo que me permitió captar nuevos clientes y aumentar mis ganancias. Le apasiona su trabajo y también mi negocio y mis objetivos. Logró comprender mis ideas y simplificarlas para hacerlas prácticas. Una ventaja adicional fue su experiencia en el ámbito del e-learning, ya que ha creado varios cursos online excelentes para el autoaprendizaje sobre marketing digital. Me sentí muy cómodo trabajando con él porque sentí que su principal motivación es ayudar a las personas a alcanzar sus sueños.
Julián Chappa
"The Funnel Box" not only managed to provide me with that fundamental added value, but Gonzalo Castro's professionalism, experience, and empathy allowed me to capitalize on my dream. Gonzalo designed a personalized campaign, which allowed me to get my ideal target audience. I highly recommend this service.
José Manuel M. S.
Grandes profesionales del marketing digital; hemos apreciado dominio de las redes sociales que gestionan y, sobre todo, implicación y celeridad de todo el equipo. Hemos conseguido los resultados solicitados. Repetiremos.
Hugo Amasuno
Gran equipo de marketing digital. Trabajamos con ellos desde hace unos años y agradecemos su dedicación y profesionalidad. Es con la primera agencia que estamos obteniendo resultados sostenidos en el tiempo. Gonzalo y todo su equipo son un gran partner de confianza para nosotros.
Claudia Bondaret
I had a fantastic experience working with Gonzalo and his team. From the very beginning, they truly understood my vision and brought it to life with precision and creativity. Beyond delivering excellent results, they also provided valuable guidance on strategies to attract more leads and grow my business. Their professionalism, dedication, and insight made a real difference. I'm extremely happy with the outcome and highly recommend their services.
Mara Zelwianski
Excelente atención, herramientas y conocimiento. Todo lo que uno puede buscar en un partner!
Taxcom Advisors
Es una agencia muy profesional y dan seguimiento constante a la cuenta, estamos muy contentos de trabajar con ellos.
Be our next happy client
FAQ
An SEO consultant analyzes your website and market and designs the strategy so you show up in Google (and now in AIs too) for the searches your clients make. It covers technical SEO, content with commercial intent, authority (backlinks + internal linking) and measurement connected to leads and sales — not just rankings.

Direct consultation
30 minutes. No commitment. We'll tell you why your website isn't bringing clients from Google and where to start.
We respond in less than 48 hours.

Gonzalo Castro
CEO & Fundador · The Funnel Box

Lucía
de TFB