Formerly known as DAY42

Helsinki · 17 to 20 Nov

Find us at

Robbin and Rick. Find the blue helmets.

Helsinki --:-- Plans below.

Where we are

Plans, not promises. Some hosts still have to let us in.

Plans change. Message us before you come.

Got a sticker? Find the blue helmets.

Add your sticker. Take the photo. Every brand gets tagged after Slush.

A blue hard hat covered in stickers: European Builders, Built in Europe, We are so back and buildmaxxing.

We're bringing six builders together in our first Buildhouse.

One week, a few kilometres from Slush. Yes, there is a hot tub.

Cutaway drawing of the pop-up Buildhouse: six builders at a long build table with laptops, four beds in the attic, a double bed, a kitchen and stairs.

Talk to us about

We're lining up partners for 2027. Let's talk.

Before the accelerator

Europe doesn't lack builders, it lacks a place to start. Cities, funds and public partners: help keep the open, learning part free for everyone.

Build Nights in your city

Six Build Nights a year in one city, with your name on all of them. Or host one: we bring the format, you bring the room.

Buildhouse Amsterdam

A permanent home for builders before they're investable. Launch partners get their name on the house and first access to the founders inside.

Build Seasons

Remote seasons where builders ship together. Be the title partner: your challenge, your mentors, a spot on demo day.

Hire builders

Meet hands-on, entrepreneurial people who already build with AI.

Early deal flow

Investor or angel? Get early access to builders who gained traction in our Build Seasons.

Say hi

Not in Helsinki? Build with us anyway.