About Lionstack
A small studio with a global appetite.
Six senior practitioners — engineers, designers, operators — working out of Japan on digital products for ambitious teams worldwide. We are deliberately small, and that is the point.
35.6762° N · 139.6503° E — Tokyo
Principles
How we work.
Craft over volume
We take on fewer projects so each one receives the attention it deserves.
Senior, always
Every member of Lionstack has shipped production software for at least a decade.
Quiet confidence
We let the work speak. No vanity metrics, no theatre — just outcomes.
Long horizons
We build systems that age well. Maintainability is a first-class deliverable.
Timeline
10 years, deliberately.
2016
Founded in Japan
Ichi and Riko start Lionstack from a co-working desk in Marunouchi, Tokyo.
2021
First international clients
Engagements expand to Tokyo, Sydney and London.
2023
AI practice launched
Kaoruko joins to lead applied LLM work for fintech and healthcare clients.
2025
Global by design
A pride of six, partnering with teams across four continents.