# Startup & founder events in Madrid

Curated by [foundercal.com](https://foundercal.com/). Only events worth a founder's time: conferences, demo days, founder dinners, meetups and workshops. Generic networking filler is filtered out. Updated daily.

- City page (HTML): https://foundercal.com/cities/madrid
- Calendar feed (ICS): https://foundercal.com/cities/madrid.ics
- All cities + usage guide for AI agents: https://foundercal.com/llms.txt

9 upcoming events as of 31 August 2026.

## Speed, Privacy, Interoperability and AI-agents in NovicIAdo

- Date: Friday 4 September 2026, 18:00 (Europe/Madrid)
- Type: Meetup
- Venue: Noviciado CoffeeShop, C. del Noviciado, 9, Centro, 28015 Madrid, Spain
- Organizer: [Legion Events Calendar](https://foundercal.com/organizers/legion-events-calendar)
- Details: https://foundercal.com/events/speed-privacy-interoperability-and-ai-agents-in-noviciado-IUL92XDiAEhBiE1
- Register / official page: https://foundercal.com/out/7648?p=md

Three ecosystems, one stage: Solana ↔ Near ↔ Zcash at Noviciado Tech Hub, Madrid. Schedule 18:00, Doors open 19:00, 1 hour Meetup: • 10 min Solana, How to participate in the Solana Hackathon and compete for $250,000 in pre-seed funding • 10 min Near, Deploy an IronClaw AI-agent in under 30 seconds…

## HackSpain 2026

- Date: 18 September 2026 – 20 September 2026
- Type: Hackathon
- Price: Free
- Venue: UPM ETSIT (Escuela Técnica Superior de Ingenieros de Telecomunicación), Av. Complutense 30, 28040 Madrid
- Organizer: [HackSpain](https://foundercal.com/organizers/hackspain)
- Details: https://foundercal.com/events/hackspain-2026-2026-09-18
- Register / official page: https://foundercal.com/out/9102?p=md

Thirty-six hours, 250 builders under 30, five startup-led tracks and compute credits from Google, Cursor and fal.ai. The winning team takes a €5,000 prize judged by Spanish VC firms, which is really why the funds show up: the room is a scouting ground. Free to take part, but applications are…

## Madrid | 48-hour Claude Code Hackathon

- Date: 2 October 2026 – 4 October 2026
- Type: Hackathon
- Organizer: [Claude Community Events](https://foundercal.com/organizers/claude-community-events)
- Details: https://foundercal.com/events/madrid-48-hour-claude-code-hackathon-iiDgfCYJME3bQ0M
- Register / official page: https://foundercal.com/out/8852?p=md

48-hour Claude Code Hackathon on building Agent-to-Agent infrastructure systems. In partnership with Nova Talent and Causa Prima. The challenge, Build an AI agent, then send it into the ring It is a 1v1 agent negotiation tournament: you'll build a buyer/seller agent, tune its strategy and…

## El Taller - Hackathon de Colosseum

- Date: 9 October 2026 – 13 October 2026
- Type: Hackathon
- Organizer: Personal
- Details: https://foundercal.com/events/el-taller-hackathon-de-colosseum-ZGYAxt2GIDEgGkQ
- Register / official page: https://foundercal.com/out/695?p=md

Del 9 al 13 de Octubre, La Familia habilitará un Espacio en el centro de Madrid como punto de encuentro para builders, equipos y creadores que participarán en el Hackathon de Colosseum. Este espacio funcionará como un hub de trabajo y colaboración, diseñado para apoyar el desarrollo de proyectos en…

## ITALIAN AND SPANISH INNOVATION ECOSYSTEMS | Shaping The Future of Life Sciences in Europe

- Date: Tuesday 20 October 2026, 17:30 (Europe/Madrid)
- Type: Conference
- Venue: Consulado Italiano, C/ de Agustín de Betancourt, 3, Chamberí, 28003 Madrid, Spain
- Organizer: Personal
- Details: https://foundercal.com/events/italian-and-spanish-innovation-ecosystems-shaping-the-future-of-life-sciences-in-p6XfV6kJlhFxuZc
- Register / official page: https://foundercal.com/out/9537?p=md

📅 Tuesday the 20th October 2026 🕒 5:30 - 7:30 PM📍 Italian Consulate in Madrid | C/ de Agustín de Betancourt, 3, Chamberí, 28003 - Madrid, Spain🗣️ Language: English🌍 Initiative part of Italian Tech Alliance's international activities - aimed at promoting and strengthening the Italian innovation…

## MERGE Madrid 2026

- Date: 27 October 2026 – 29 October 2026
- Type: Conference
- Venue: Palacio de Cibeles, Plaza de Cibeles 1, 28014 Madrid
- Organizer: [MERGE](https://foundercal.com/organizers/merge)
- Details: https://foundercal.com/events/merge-madrid-2026-2026-10-27
- Register / official page: https://foundercal.com/out/9104?p=md

Southern Europe's main crypto and Web3 conference, and the one place where Spanish banks, the regulator and the digital asset ecosystem sit in the same room. It opens with a 400-seat institutional summit inside the Bolsa de Madrid on 27 October, then moves to Palacio de Cibeles for two days of…

## CYSAT Madrid 2026

- Date: Wednesday 28 October 2026, 09:00 (Europe/Madrid)
- Type: Conference
- Venue: Digitaliza Madrid (Centro de Innovación), Calle de Embajadores 181, 28045 Madrid
- Organizer: [CYSAT](https://foundercal.com/organizers/cysat)
- Details: https://foundercal.com/events/cysat-madrid-2026-2026-10-28
- Register / official page: https://foundercal.com/out/9103?p=md

The first Spanish edition of Europe's space cybersecurity conference, run with the support of the Spanish Space Agency and TEDAE. Two stages, one in English for the international crowd and one in Spanish for the Iberian and Latin American community, covering post-quantum cryptography, satellite…

## Agent Pay Hackathon by MERGE

- Date: 27 November 2026 – 29 November 2026
- Type: Hackathon
- Organizer: [MERGE](https://foundercal.com/organizers/merge)
- Details: https://foundercal.com/events/agent-pay-hackathon-by-merge-2026-11-27
- Register / official page: https://foundercal.com/out/9105?p=md

A 48-hour hackathon on the one question everyone in agentic commerce is circling: what do AI agents actually pay for, and on which rail. Two tracks, agents that transact in the real world with no human in the loop, and the streaming micropayment rails between agents at sub-cent cost. About 100…

## South Summit Madrid 2027

- Date: 2 June 2027 – 4 June 2027
- Type: Conference
- Organizer: [South Summit](https://foundercal.com/organizers/south-summit)
- Details: https://foundercal.com/events/south-summit-madrid-2027-2027-06-02
- Register / official page: https://foundercal.com/out/9101?p=md

The largest startup gathering in southern Europe and the one week the whole Spanish and Latin American ecosystem turns up in the same building. The 2026 edition drew more than 20,000 attendees, 7,500 startups and 2,100 investors from 134 countries, and it has run at La Nave in Villaverde for years.…