01
CRM with integrated AI
Our own platform with conversational AI that qualifies, replies and prioritizes the leads your campaigns bring without you touching a thing.
Google Ads Agency
Google Ads Agency
We don't just launch campaigns. We build the whole system, from the click to the close: the ads bring the clients and an AI CRM measures every euro, from the ad and the keyword to the closed sale. Google Ads connected to your real revenue, not to clicks you can't tie to money.
OpenAI Select Partner
Pre-approved by
USA
Pre-approved byUSA7 figures
In managed client revenue
+1,700%
Sales growth for a client (B&W)
5
Companies of our own founded and run
4.9★
Verified reviews
In real time
This is how we move the numbers in your Google Ads account
Lower cost per client, more sales. Every metric measured from click to close, not loose clicks.
Google Ads
OptimizingConversions
34
de 34
Cost per client
€94
de €94
CTR
3,1 %
de 3,1 %
ROAS
2,4x
de 2,4x
Sales from Google Ads
6 months optimizing the account
The Problem
Google Ads accounts that generate clicks but no sales
Most Google Ads accounts chase metrics that look good in a report: cheap clicks, high CTR and "conversions" nobody has checked against the till. The chart goes up, the manager optimizes the CPC, but you don't know how many of those clicks became a real client.
Dashboard clicks and conversions
Go up every month
Real sales and revenue
Stay flat
Google Ads that grows a business is different: taking the click all the way to the close and measuring the full journey. That's why I connect advertising to an AI CRM that measures from ad to sale, and I work as a consultant who steps inside your business, not as a media buyer adjusting bids in isolation.
Does your Google Ads bring clicks or clients?
Approach
My Google Ads analysis of your account
I audit your account and your business in depth: campaign structure, keywords, ad quality, conversion tracking and, above all, what happens after the click. I don't optimize for the sake of it. I prioritize the campaigns and searches that can bring real clients, and I connect advertising to the CRM to measure all the way to the sale.
Ready for Google Ads that brings you clients?
Plans
Two ways to work together
Both include the strategy, the full analysis of your account and professional campaign management. The difference is how far the measurement goes.
Google Ads Management
We launch and optimize your campaigns professionally, with strategy and monthly review.
- Analysis of your account, your market and your competition
- Campaign structure: Search, Performance Max, YouTube, Shopping as needed
- Keywords with buying intent and negative cleanup
- Ad copywriting and landing page recommendations
- Conversion tracking configured and reviewed
- Monthly optimization of bids, audiences and creatives
- Clear results report and priorities for the month
Integral system
Everything in management, plus the AI CRM and end-to-end measurement with a growth consultant by your side.
- Everything in Google Ads Management: same strategy, same optimization
- Our own AI CRM connected to your campaigns
- End-to-end measurement: from the ad and keyword to the closed sale
- Real attribution of every lead and every close to its campaign and channel
- A consultant dedicated to your company's growth, not just the account
- Automated sales follow-up of the leads that come in
- A panel where you see advertising, leads and sales in one place
Neither plan is better than the other: it depends on your moment and whether you already have a CRM that measures sales. On a call we help you choose the one that fits you.
Wherever you start, you first get a prior analysis of your account: how it is today, how much budget you're burning with no return and how far it can go. No commitment.
We advertise where your clients are
SearchYouTubeDisplayShoppingPerformance MaxGmail
Differentiation
I do Google Ads connected to your sales, not to vanity metrics
A typical Google Ads agency
Only manages the account
Optimizes the CPC. Reports clicks. Doesn't know what happens after the click.
- Only manages the ad account, isolated from the rest of the business
- Reports clicks and "conversions" that don't match the till
- No CRM: can't attribute sales to the campaign that brought them
- Disconnected from your sales process and your real closes
- A media buyer who adjusts bids and little else
- You're one of hundreds of accounts in a spreadsheet
VS
The Funnel Box
Integral system, from click to close
Dedicated consultant. A CRM that measures real sales. We iterate with you.
- A consultant dedicated to your company's growth, not an isolated manager
- An AI CRM that measures from ad to sale, not just clicks
- A complete system from click to close, advertising tied to your revenue
- We iterate month over month with you and your team: the first months are key
- Full transparency: you see which campaign brings each client
- We step into your business, understand it and work on what sells
We accept a maximum of 5 new accounts per month to guarantee real dedication, depth and measurable results. If your company is the next one, let's talk.
Bonus · Integral system
I manage your campaigns… and as a bonus, we set up the CRM that measures every sale
On top of managing Google Ads, together with my team I give you the option to connect advertising to an AI CRM that measures which ad and which keyword brings you each client. You see the real return on your investment from your phone, without opening an Excel.
TFB Assistant
Online · AI
02
Measurement from ad to sale
Every lead and every close is attributed to its campaign, ad and keyword. You know which advertising euro turned into a client.
03
Manage your investment and profitability from your phone
You see spend, leads, sales and cost per client in real time. You ask, and AI answers.
24/7
Measure your Google Ads ROI from your phone
Want us to set up the system too?
Real Cases
Results validated with data
Measurable growth in sales and leads, with real clients, not promises.
Retail & E-commerce
Black & White Video ProductionSuccess story
"Sales grew 1700%"
From a neighborhood store to a digital company selling across Spain. We rebuilt the whole system: acquisition, measurement and sales connected end to end.
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 company be the next success story?
Recognition
OpenAI Select Partner
July 2026OpenAI 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 announcementPre-approved by Forbes
June 2025Forbes 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.
Growth Consultant
Gonzalo Castro
Founder of The Funnel Box, Brainstorming Films, Veribox and Echoroutes
Let me tell you who I am and why you should choose us
The criteria behind every Google Ads decision
The difference between spending on ads and growing rarely lies in how much you lower the CPC, but in whether you measure what happens after the click.
I've spent 10+ years growing companies, and I always work advertising inside the business: I've used it to take firms, clinics and shops from not selling online to a client-acquisition system that runs on its own.
That's when I understood the key: the problem isn't bidding better, it's not knowing which ad brings each client.
Many accounts grow dashboard clicks and conversions, but without connecting that advertising to real sales. That leads to burned budget and blind decisions.
That's why we work in a different way.
Not as a media buyer adjusting bids.
Not as one more account in a spreadsheet.
But as a partner who steps inside the business, understands how it gets clients and uses Google Ads to bring the right ones, measuring every euro all the way to the sale.
If we work together
- Ads connected to your real sales, not loose clicks
- An AI CRM that tells you which campaign brings each client
- A consultant thinking about your revenue, not just your CPC
- An account that improves month over month, not on autopilot
It's not about more clicks.
It's about the clicks that end in a sale.
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
Frequently Asked Questions
We don't work with a fixed rate: the price is tailored to the need, the scope and whether you want just management or the integral system with CRM. After the free analysis of your account we send you a concrete proposal with a closed price and clear deliverables, no surprises. Your Google ad spend is separate and you decide it.
Direct consultation
Get a free analysis of your account
30 minutes. No commitment. We'll tell you where you're burning budget in Google Ads, what you're not measuring and where to start.
We respond in less than 48 hours.
Gonzalo Castro
CEO & Fundador · The Funnel Box
Disponible ahora
Pre-approved by