18 Apr 2026, 00:00
Think like a founder. Not just a hacker. This is not your usual hackathon, and we're not just looking for the best coders. We're looking for founders. Spend 24 hours solving real challenges from Helsinki's startup scene. And if you're already building something of your own? Antler will be there — book a slot, show them what you've got. What makes this different? You will: Work on real startup challenges (in teams of up to three) Get direct access to founders as mentors Learn how startups think, build, and prioritize Create something that could go beyond the hackathon This is your chance to experience what it's like to build inside a startup: fast-paced, ambitious, and focused on real impact. Two ways to participate 🏢 Startup Challenges Pick a challenge from one of our challenge providers and build a real solution for their problem in 24 hours. Challenge Providers: CasvuAI TaruTech Trainer (Aalto Founder School) 🚀 Building your own startup? Antler will be on-site and available throughout the event. Book a slot to demo your idea directly to the team: the most promising founders get a spot to pitch at the closing session. What's Antler's Residency? 8-week full-time program in Antler's Helsinki office Build alongside driven founder teams Direct support from Antler's team A shot at Antler's pre-seed investment What's in it for you? €1,000 prize pool (Startup Challenges) Pitch directly to Antler's team and a possible seat the the residency Winners from the startup challenges and top founders present at the closing session Startup mentoring & sparring throughout the event Event Details April 18–19 📍 Antler Helsinki Office Saturday 11:00 — Doors Open 12:00 — Kick-off + challenge presentations 12:30 — Lunch 19:00 — Dinner 22:00 — Closing Sunday 10:00 — Doors Open 11:00 — Brunch 13:00 — Submission Deadline 14:00 — Closing pitches: challenge winners + top start up prospects 15:00 — Closing This might be your entry point into the startup world. Make it count.
