5th Floor started on the fifth floor of a shared office.
Our co-founders, Mike and Yuki, worked in neighboring rooms—just a few steps apart.
What began as casual conversations between meetings turned into something bigger.
That floor was always full of interesting people, unexpected encounters, and real momentum. Not just business opportunities, but genuine human connections.
We realized that spaces like that are rare—and powerful.
And we started 5th Floor to make that kind of connection possible anywhere in the world.
We believe the future belongs to people who can communicate clearly, across borders, cultures, and languages.
5th Floor is building tools that make global communication smoother and more human. By leveraging AI, we aim to remove language barriers and reduce friction in conversations—so ideas, intent, and trust can travel freely.
AI shouldn’t replace human connection. It should make it easier.
Yuki Katano / Co-founder
