Sigma Squared Summit
Get a glimpse into the future by meeting those who are building it.
What you need to know
The Sigma Squared Summit is a global invite-only event that unites the most ambitious young founders, serial entrepreneurs, thought leaders and investors to initiate change and push the boundaries of what is possible.
At our summits, you will get a glimpse into the future by meeting those who are building it while forming long-lasting partnerships and friendships.
This year, we're returning to Vienna - the city that hosted our very first Summit as Sigma Squared Society back in 2021.
Austria
Vienna
2026
30-31 October
SIGMA SQUARED FOUNDERS
400
+
thought LEADERS & INVESTORS
50
+
SPEAKERS
25
+
COUNTRIES
30
+
Our previous Summits
What our participants say
Vaitea Cowan
Co-founder, Enapter
The variety of participants in the summit creates an open book of knowledge for fruitful conversations. It is a unique occasion to challenge our beliefs and co-create the roadmap for a better future.
Kami Krista
Co-founder, Elio
If I could only go to one conference every year, Sigma Squared Society’s global summit would be the one - hands down and by many miles. It’s indescribable magic where you build really deep professional and personal connections.
Sian Sutherland
Co-founder, A Plastic Planet
The Sigma Squared Summit brings together driven founders who are fearless and fully realise the imperative to reimagine and reinvent the world of business where positive impact is a more important metric than only profit.
Patrick Nathen
Co-founder, Lilium
The kind of momentum, the ideas and the inspiration that you get here is very unique compared to any other founder summits that I have experienced so far.
2026 Speakers
Xavier Sarras
Founding Partner | 4P Capital
Philipp Stehlik
Co-Founder & Partner | The Future is Now & Earth
Mirko Caspar
Co-CEO | Mister Spex
Elisa Seghetti
CEO & Co-Founder | Saturn Dynamics
Daniel Keinrath
CEO & Co-Founder fonio.ai
Moritz Lechner
Former CEO | New Fluence
John Hopcroft
Co-Founder & CEO | Lucy
Christian Meermann
Founding Partner | Cherry Ventures
Maximilian Tayenthal
Co-Founder and CEO| N26
Lily Vittayarukskul
Co-Founder & CEO | Waterlily
Hansi Hansmann
Chairman | Hansmann's Family Office
Julian Teicke
Co-Founder & Executive Chairman | The Delta
Andrew Thompson
Co-Founder & Former CEO | Proteus Digital Health
Robin Wauters
Co-Founder | EU-INC and Tech.eu
Reem Wyndham
Founding Partner | Pact VC
Daniel Dippold
Founder | EWOR
Mike Butcher
Founding Editor-at-large | TechCrunch
Robin Wauters
Founder | Tech.eu
Sebastian Becker
General Partner | Redalpine
Sian Sutherland
Co-Founder, A Plastic Planet
Partners
.png)
.png)
.png)
.png)
Join us as...
Volunteer
Apply if you're interested in volunteering and helping us organise an incredible event while getting a glimpse into the world of the most ambitious founders under 26.
Apply
Founder
Apply for a chance to win a summit ticket and participate in the invite-only event as an external founder.
Investor / C-Level
We offer a limited amount of summit tickets that can be purchased by C-level executives who wish to attend our summit. Following your application, a member of our team will reach out to you.
Hello@sigma-squared.org