Socious
Founder & CEO
An AI reporting engine paired with certified specialists — plus impact infrastructure for verifiable credentials and sustainability talent.
Convener Founder Investor
I want to leave my kids — and everyone else's — less to fix, more to build on.
Advancing humanity. I convene the Tech for Impact Summit, run Socious, grow the Impactism movement, and back founders as an impact angel.
Seira Yun
Founder, Socious · Impact angel
- The Japan Times · 2023 Seira Yun of Socious seeks lasting social impacts
- Digital Democracy Summit 2026 · Keio University Moderated “Democracy and Capitalism in the Age of AI”
- NTT NTT interviews Socious CEO Seira Yun
What I'm building
Three roles, one reason: leave less to fix, more to build on.
Convene
Tech for Impact Summit
Bringing founders, funders and policymakers together around deep-tech that moves humanity forward.
Build
Socious & Impactism
Infrastructure and institutions that make impact legible, verifiable, and worth building for.
Back
Impact angel investing
Backing deep-tech founders, starting with decarbonization.
Ventures
A connected body of work.
Each venture advances the same thesis from a different angle — convening, building, and investing in impact.
Impactism Foundation
Founder
A non-profit advancing Impactism — making impact, not money, the measure of a life. Not a replacement for markets, but the culture that decides what we honor on top of them.
Tech for Impact Summit
Convener
A global gathering where deep-tech founders, investors and institutions align on the technologies that advance human progress.
A
Active Impact angel investing
Angel investor
Backing deep-tech founders working on decarbonization — personally, as an impact angel.
Recent talks All speaking →
Democracy and Capitalism in the Age of AI: Searching for a New Equilibrium
Digital Democracy Summit 2026, Keio Mita Campus, Tokyo
In conversation with Audrey Tang
HUMANS by Socious
In conversation with Yumiko Murakami
HUMANS by Socious
Recent writing All essays →
The Impactist Manifesto
Every age has a measure. The founding text of Impactism — the case for making impact, not money, the measure of a life.
A Culture Worth the Wealth
A century-forward vision: markets still run and no one goes without — what changes is what a culture chooses to honor.
Let's leave less to fix — and more to build on.
If you're planning a stage, a panel or an interview, tell me the date and the room.
Book Seira Founders & startups
Speaking & podcasts
Media & interviews