GTM & COMMERCIAL GROWTH · SPORTSTECH & ENTERTAINMENTTECH

Launch products.
Win customers.
Grow the business.

I help founders and leadership teams take products to market, strengthen sales and expand internationally. I bring experience as a company co-founder, COO, CMO and agency CEO, across technology, sport and live entertainment.

For technology companies and established operators in sport and live entertainment.

Tell me what you’re trying to achieve, what’s getting in the way and what you’ve already tried. We’ll discuss whether I can help and what working together could look like.

No preparation required.

Europe-based. Working worldwide.

Marcos Castro

€2M seed round

Full Venue · Co-founder and former COO/CMO

2024 round

Agency CEO

Willba · Business, team and operational leadership

4 continents

Football category development at Prozis

IPAM

Director and Co-Director of postgraduate AI programmes

Client testimonial

“Marcos has been an excellent strategic partner as I've refined the positioning, go-to-market strategy, and customer validation process for Evans Velo Zone.”

Steve Evans Jr. — Founder, Evans Performance / Evans Velo Zone

Product positioning · GTM · ICP · Customer validation

Read full testimonial

Marcos has been an excellent strategic partner as I've refined the positioning, go-to-market strategy, and customer validation process for Evans Velo Zone. What I've appreciated most is his ability to bring structure and discipline to the process without overcomplicating it. He has helped sharpen our ICP, clarify the core problem EVZ solves, improve the landing-to-product journey, and keep the focus on real customer behavior rather than assumptions. He consistently asks the right questions, challenges ideas constructively, and helps distinguish between useful market signals and actual validation. That has made the work more focused and has helped me make better decisions as the business moves toward launch. I'd recommend Marcos to founders who need a thoughtful, practical partner in positioning, GTM strategy, customer discovery, and early-stage product validation.

How I help

Four ways to work together.

Advisory

A senior sounding board for recurring decisions on customers, sales, positioning and growth.

Explore GTM Advisory

Focused Projects

A defined engagement to address one commercial challenge, such as positioning, market entry or distribution.

Explore Focused Projects

Fractional Leadership

Part-time commercial leadership, with ownership of agreed priorities and responsibility for execution.

Explore Fractional Leadership

Training & Workshops

Practical sessions that help your team apply GTM, marketing and AI to real business challenges.

Explore Training & Workshops

Not sure which format fits? Start with a conversation about the business challenge.

Selected career experience

Experience with commercial responsibility.

Full Venue / Clustie

Co-founder · Former COO & CMO

Helped build an AI and data business and its transition from consulting-led delivery to B2B SaaS. Responsibilities spanned commercial operations, GTM and international growth. Full Venue raised a €2M seed round in 2024.

Willba

Former CEO

Led a marketing agency with responsibility for the business, team and client delivery. The role combined commercial development, hiring, operations and the day-to-day decisions behind running the company.

Prozis

International football partnerships

Developed the football category and commercial partnerships with clubs across international markets, connecting sponsorship and club relationships with e-commerce growth, customer acquisition and brand activation. The category reached four continents.

RFM SOMNII

Marketing & Partnerships Director

Led festival marketing and partnerships across ticketing, sponsorship, audience growth, first-party data and new revenue opportunities. Experience working inside a live entertainment business with commercial and delivery responsibilities.

About Marcos

Building businesses. Developing the people who lead them.

I’ve spent 18+ years building and growing businesses across technology, sport and live entertainment. As a founder and operator, I’ve worked through practical decisions around sales, teams, partners and resources — balancing commercial direction with the day-to-day realities of running a business.

My writing at Building SportsTech

Academic leadership

Alongside my commercial work, I direct and co-direct postgraduate AI programmes at IPAM and teach at IPAM and Universidade Europeia. My teaching connects business experience with practical decisions in marketing, sales and growth.

Let’s talk

What commercial challenge are you working through?

Tell me what you’re trying to achieve, what’s getting in the way and what you’ve already tried. We’ll discuss whether I can help and what working together could look like.

No preparation required.

Common questions