Growth Marketing Hackathon · Lisbon
The unofficial warm-up to Web Summit 2026.
Most marketers have never opened an IDE. On Sunday 8 November, the day before Web Summit opens, we are going to fix that in one day.
Bring a product you are launching, or a brand that has gone quiet. Team up on the day, then build a whole campaign with agentic AI: the positioning, the social, the creative, and the site that carries it. You leave with the campaign live and the AI agents you built still working for you.
✅ WHAT YOU NEED TO KNOW
No experience needed. A one-hour AI masterclass at the start gets everyone going, whatever you have used before. Every participant gets AI access for the day and our starter kit of 16 ready-made marketing AI agents. Come on your own if you like, because teams form on the day around the ideas people pitch. Mentors are on the floor all day.
Judging: a panel of marketing practitioners counts for 60% of the result. The other 40% comes from our AI judge, which runs each team's campaign past 1,000 AI customers built from that team's target audience. Every team leaves with its scorecard.
Entry is free and registration is approved by the hosts. Places are limited. The venue is in Lisbon and is shared with approved guests. The day will be photographed and filmed.
👥 WHO IT IS FOR
Marketers and growth people, founders and operators who run their own site, agencies and freelancers who run marketing for other companies, and builders curious about what agentic AI does to this work. Whether you're in town for Web Summit or you're part of Lisbon's startup scene, if you market anything online you will get a day out of it.
🕐 RUN OF SHOW
11:00 · Doors open: Thirty minutes to check in, find a seat and meet the room. We will help you install the toolkit and sign in before anything starts, so nobody loses build time to setup later.
11:30 · The brief: Fifteen minutes. What you are building, the AI tools you will be using, and exactly how the judges will score it. Everything you need to know up front, no surprises at the end.
11:45 · AI Agents Masterclass: Sixty minutes, everyone together on one screen. Your first time inside an IDE: opening a project, giving an AI agent an instruction that actually works, and publishing something live. The room builds a marketing agent together. If you have never done this before, this is the part that makes the rest of the day possible.
12:45 · Pitch and team up: Twenty minutes. Anyone with an idea gets sixty seconds to pitch it, whether that is a product they are launching or a brand that has gone quiet. The room then forms teams around the pitches people want to work on. Bring an idea or join someone else's, both work.
13:05 · Lunch with your team: Thirty minutes to eat and plan. A good chance to agree on who does what with the team you have just joined, before the work starts.
13:35 · Build: Close to three hours, and the heart of the day. Your team builds the campaign end to end with the 16-agent starter kit: the positioning, the social, the creative, and the site that carries it. Mentors circulate throughout, and there are short clinics if you get stuck on something specific.
16:15 · Tools down: Fifteen minutes. Freeze your build, capture a short clip of it working, and decide what you are going to show, because two minutes goes quickly.
16:30 · Demos and winners: Each team presents for two minutes to the judges and the room. Judging is on the work, not the polish. Verdict and prizes by 17:15.
17:15 · Networking: Stay on to meet the judges, mentors, partners and the rest of the room before Web Summit week starts. Wrap at 18:00.
🏆 PRIZES
1st · $3,000 in Google Gemini credits, plus three months of Grona, and your winning campaign featured as a Grona case study
2nd · $2,000 in Google Gemini credits, plus two months of Grona
3rd · $1,000 in Google Gemini credits, plus one month of Grona
Every participant: AI access for the day, the 16-agent starter kit to keep, and your team's scorecard from 1,000 AI customers. More partner prizes to be announced.
🎒 WHAT TO BRING
A laptop and a charger, and either a product you are launching or a brand that needs reviving. If you have analytics access for a site you work on, bring that too. Everything else is provided on the day.
🤝 BROUGHT TO YOU BY
Grona. AI credits through Google for Startups. More partners to be announced.