Venture Builder · Barcelona ·2026

Building the Next Generation of Ventures

We help founders validate ideas, raise capital, navigate legal complexity and connect with the right investors

— Estudio nº 04

Costa Brava / ES

Ventures built &
backed
0 +
Founders in the
network
0 +
Capital raised
0 M

I / VI — Practice

Ways we partner.

Operators before investors. We build investment-ready startups. Capital, craft and conviction — in equal measure.

II / VI — Thesis

We back founders building companies that shape tomorrow.

Venture Building | Investment Readiness | Investor Network

Sectors

Applied AI · Climate · Consumer · Fintech · B2B SaaS· Marketplaces · Healthtech ·

Stage

Pre-seed & Seed. Selective Series A.

Geography

Iberia, Europe, select US.

III / VI — Portfolio

Selected work.

Climate · 2024

— 01

Marea

Ocean-grade carbon removal infrastructure.

Design tools · 2023

— 02

Forma studio

A canvas for the next generation of product teams.

Future of work · 2022

— 03

Estudio Nova

Workspaces designed for distributed craft.

Consumer · 2024

— 04

Inmo Project

Eco Hose building project

IV / VI — Studio

Operators.
Designers.
Believers.

Former founders and product leaders, shaped by the cities we love. Building companies with founders, not just advising them.

Investor MAnager

V / VI — Contact

Let’s build something
meaningful.