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Active · scaling Socious
Founder & CEO
An AI reporting engine paired with certified specialists — plus impact infrastructure for verifiable credentials and sustainability talent.
Convener Founder Investor
Building toward a world that measures impact, not money.
Advancing humanity through technology — as convener of the Tech for Impact Summit, founder of Socious and Impactism, and investor through Socious Capital.
Portrait of Seira (4:5)
Seira Yun
Founder, Socious · GP, Socious Capital
As seen in & on stage at
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What I'm building
Three roles, one throughline: shifting how the world keeps score — so progress is measured by impact, not money.
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
Socious Capital
A deep-tech seed fund backing founders solving planetary-scale problems, 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.
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Active Impactism Foundation
Founder
A non-profit advancing impactism — the idea that impact should be its own peer-conferred medium, not impact translated back into money.
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Annual · convening Tech for Impact Summit
Convener
A global gathering where deep-tech founders, investors and institutions align on the technologies that advance human progress.
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Investing Socious Capital
Founder & General Partner
A deep-tech seed fund backing founders tackling global decarbonization and planetary-scale problems. Thesis & track record public; materials on request.
Recent talks All speaking →
Impact, not money: a new measure for progress
Tech for Impact Summit, Tokyo
Deep-tech pathways to decarbonization
dd2026
From founder to investor: backing what matters
Podcast appearance · TODO
Recent writing All essays →
Why impact should be its own medium — not money translated back
An inversion of the standard impact-measurement playbook, and what it changes.
From GNH to HDI to PICSY: the lineage of measuring what matters
Tracing the intellectual line from Bhutan's GNH through Sen's HDI to Ken Suzuki's PICSY.
Building a global impact network worth convening
What it takes to gather founders, funders and policymakers around a shared measure.
Invite Seira to your stage or podcast.
Keynotes, panels, firesides and interviews on impact economics, deep-tech, and the founder-to-investor path — in English and Japanese.
Book Seira to speak Impact over money: a new economics
Deep-tech for decarbonization
The founder-to-investor path