Consultor de empresas — Gonzalo Castro

AI Consulting

Artificial Intelligence Consultant

I design AI integration into your company with you to multiply productivity, cut costs and open new revenue lines. I don't sell tools — I build the full system where AI runs marketing, sales, customer service, internal processes and reporting, and frees your team to focus on what actually moves the business.

OpenAI Select PartnerOpenAI Select PartnerPre-approved byForbesUSA
+80

Companies with AI implemented

+1,700%

Best growth achieved

4.9★

Verified reviews

70%

Operational tasks automatable

The Problem

Companies that try AI but never integrate it

Most companies use ChatGPT, subscribe to scattered tools and let every team experiment on their own. There's activity, there are tests, there's spending — but no system. AI ends up as a toy nobody can measure.

Tools, subscriptions and AI hours

Grows every month

Real productivity and ROI

Stays flat

M1M3M6M9M12

The difference between companies scaling with AI and those falling behind isn't the model they use: it's how they integrate it into their processes. I design that integration with a business mindset, not a hype mindset — so every euro invested in AI returns measurable results.

Is your AI adding value or complexity?

Approach

My AI analysis of your business

I analyze with AI every key area of the business: marketing, sales, customer service, internal processes and reporting. We don't implement AI everywhere — only where it truly frees hours, cuts costs and opens new revenue. And where it makes sense, we build custom AI applications for your company.

Google4,9★★★★★Reseñas verificadas en Google

Estimation by company size

10–50 people. Some automations, no central AI system.

Areas where AI frees up time

Today vs. with integrated AI

Lead response and follow-upAutomation91%· ~134 h/month saved
NOW
AFTER
AI meeting scheduling agentAutomation92%· ~74 h/month saved
NOW
AFTER
Prospect qualificationAutomation91%· ~94 h/month saved
NOW
AFTER
Client task assignmentAutomation89%· ~65 h/month saved
NOW
AFTER
Real-time results reportingAutomation96%· ~112 h/month saved
NOW
AFTER
Client status queries to the AIAutomation94%· ~59 h/month saved
NOW
AFTER
Client process automationAutomation92%· ~121 h/month saved
NOW
AFTER

Total saved per month with AI

Time you recover every month across the company after integrating AI

0hours

Ready to integrate AI into your company?

Differentiation

We don't implement AI everywhere — only where it moves the business

What I'm NOT

AI Agency

Sells tools. Implements fast. Multiplies clients.

  • Plugs in ChatGPT and walks away
  • Same template for every client
  • Large team delivering volume, not depth
  • Learns from one or two sectors
  • Charges by the hour, not by impact
  • Hands you a PDF and disappears

What I AM

AI Consultant

Designs, applies and implements only where AI returns ROI.

  • I build custom AI applications for your business
  • Full personalization: your data, your processes, your model
  • Team cut in half thanks to AI, with higher quality
  • I work with every client using AI daily — real patterns
  • Parallel markets: retail, e-commerce, professional firms, healthcare, B2B, education
  • I implement with you until the system runs on its own

We only implement AI where it actually returns ROI — and we only take 5 new companies per month to guarantee real technical dedication, depth and measurable results. If your company is the next one, let's talk.

Real cases

Companies already operating with integrated AI

Every project means a measurable transformation: lower operating cost, more speed, better decisions.

Google4,9★★★★★Reseñas verificadas en Google
Trustindex
Black & White Video Production
Retail & E-commerce
Black & White Video ProductionSuccess story

"They grew sales by 1,700%"

From a neighborhood shop in Barcelona with no digital presence to a 100% digital company with a scalable model and recurring sales across Spain.

Could your company be the next AI case study?

Bonus · Implementation

I analyze your business, design the AI… and as a bonus, I implement it

On top of the consultancy, together with my team I give you the option to roll out an AI system that controls your entire company and that you can manage from a phone. Every founder makes real decisions without opening an Excel or waiting for meetings.

TFB Assistant

Online · AI

01

CRM with integrated AI

Our own platform with conversational AI that qualifies, replies to and prioritizes leads without you touching anything.

02

AI agents for internal operations

Assistants that automate reporting, customer service, proposal generation and follow-ups — running 24/7.

03

Run your company with AI from your phone

A mobile app where you see sales, leads, per-person KPIs and profitability in real time. You ask, and the AI replies with real data.

24/7

Your company running with AI non-stop

Want us to implement it too?

Recognition

OpenAI Select Partner
July 2026
OpenAI Select Partner

OpenAI Select Partner

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
Pre-approved by Forbes
June 2025
Forbes

Forbes Business Council

The Funnel Box's application to Forbes Business Council was pre-approved on merit and business track record — Forbes' curated community for business leaders.

Gonzalo Castro — Consultor de empresas

AI Consultant

Gonzalo Castro

Founder of The Funnel Box, Brainstorming Films, Veribox and Echoroutes

Let me tell you who I am and why to choose me

The judgment behind every AI decision

The difference between companies that grow with AI and those that only try it is not the model they use, but how they integrate it into the business.

I've spent more than 10 years transforming companies, and in recent years I have led AI integration across marketing, sales, customer service, internal processes and reporting for clients in retail, e-commerce, professional firms, aesthetic medicine, B2B and education.

What I learned is clear: AI doesn't fail — implementations without strategy do.

That's why I don't sell tools. I design the full AI architecture of the business and roll it out with my team until it runs on its own.

I work differently.

Not like an agency that plugs in ChatGPT.
Not like a vendor that leaves you with a PDF.

But as a partner who steps into the business, understands how it really works and applies AI where it has measurable impact.

If we work together

  • AI strategy aligned with your business model
  • Real implementation, not pretty slides
  • A team trained to run the AI without depending on me
  • Decisions based on data generated by the AI itself

It's not about using more AI.

It's about using the AI that actually moves the business.

Google

Google reviews

Pedro Miralles

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

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

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.

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

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

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

Mara Zelwianski

Excelente atención, herramientas y conocimiento. Todo lo que uno puede buscar en un partner!

Taxcom Advisors

Taxcom Advisors

Es una agencia muy profesional y dan seguimiento constante a la cuenta, estamos muy contentos de trabajar con ellos.

Be our next client with AI integrated

FAQ

Frequently Asked Questions

A complete diagnosis of your company focused on AI opportunities, a 6–12 month integration architecture and hands-on support during execution alongside your team. It's not just a report — I get into operations.

Direct consultation

Request a free AI diagnosis

30 minutes. No commitment. We'll tell you exactly where AI can have measurable impact in your company and where to start.

We respond in less than 48 hours.

Gonzalo Castro

Gonzalo Castro

CEO & Fundador · The Funnel Box

Disponible ahora
OpenAI Select Partner
Pre-approved byForbes

Lucía

de TFB

Disponible ahora