01-02 June, 2023 | Vienna | Hofburg Palace
Hosted by Impact Hub Vienna & Mercer

Where courage meets collaboration.

On June 1-2, 2023, we are bringing together individuals from a diverse range of sectors, geographical regions and demographics for a gathering to inspire courage and collaboration.

These are pivotal times. Multiple crises stemming from the pandemic, climate change and geopolitical conflicts require us to take immediate and far-reaching action. Cross-sectoral innovations, technological breakthroughs, increased civic engagement and institutional commitments create opportunities and momentum for a much needed systemic transformation. We have the tools, and we must act now. But we cannot succeed if we act in isolation—we must collaborate now like never before.

Our promise. At Impact Days, we will challenge the fundamentals of the current economic and financial model, and explore unconventional alternatives and inspiring initiatives. We will put the spotlight on bold actions and give promising new solutions a chance to shine. And we will provoke new ways of thinking by weaving together a dialogue of diverse perspectives: investors and entrepreneurs, asset owners and policy-makers, corporate innovators and regulators, artists and civil society leaders.

Themes in focus. This year’s Impact Days will be guided by the themes of climate change, biodiversity, health, inequality and peace & democracy. In exploring solutions, we will focus on investment, policy-making and entrepreneurship as key levers for impact.

Past Speakers

Karin Käufer

Massachusetts Institute Co-Lab, Co-Founder & Executive Director Presencing Institute

Gerda Holziger-Burgstaller

Chief Executive Officer & Chief Financial Officer, Erste Bank

Gabriela Gandel

Board member Impact Hub Global, Former Executive Director

Uli Grabenwarter

Deputy Director – Equity Investments, European Investment Fund

Madhuban Kumar

CEO Carbon Laces

Ewa Konczal

Central and Eastern Europe (CEE) Manager, EVPA

Amarik Ubhi

Global Head of the Infrastructure investment team, Mercer

Kirsten Dunlop


Paul Chatterton

Lead and Founder, Landscape Finance Lab

Charly Kleissner

Co-Founder of Toniic & KL Felicitas Foundation; Chairman of the Board for ImpactAssets

Kristin Siegel

Head of EMEA at Toniic

Heinz Fischer

Co-Chair of the Ban Ki-moon Centre for Global Citizens; Former Federal President of the Republic of Austria

Impact Days '23 at a glance

100 +
Showcased Solutions
600 +
Participants from
30 +

Full Access to ViennaUp  Program

What awaits you

Inspiring impulses, deep dialogues, positive perspectives – and all active participation. Over the course of two days, you’ll exchange ideas in intimate workshops; hear honest stories of success—and failure—from pioneers and peers. You will laugh with new allies, dine in the grand hall, and meet an incredible group of leaders from a great diversity of sectors, geographies and demographics. Most importantly, you’ll walk away inspired to pursue further impact, and connected to a growing community of collaborators who can help build the future with you.



Memories from Impact Days 2022.

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