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Walden Catalyst
Ventures
Over $550M
for Deep-Tech Startups
We help visionary
entrepreneurs build reality.
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Geographic focus
US, Europe, and Israel

Portfolio

Patient capital. Lasting connections. Strategic direction.
We back the bold and the daring—pioneers. 
Conquering, holding, venturing. 
Join us at the edge.
Of scientific discovery and engineering innovation.

Companies

People

Walden Catalyst fuses a team of innovators and entrepreneurs.
Passionate about disruption, committed to excellence.
Partners to the bold and brave.
Positive in human impact.
Powering the future of technology.

Meet us

About

Catalysts of success for over 30 years.

Who we are
30
years of successful track record.
3.5
billion dollars in committed capital.
600
invested companies.
12
investments in different countries.
138
number of IPOs.
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I met Young when few people wanted to invest in Zoom. At that time, investors thought the market was too crowded and there wasn't a need for another video conferencing platform. To my benefit, Young understood Zoom's mission of customer happiness and was one of the few investors that had the insight and belief that Zoom was going to radically improve the consumer experience.

Eric S. Yuan, Founder and CEO Zoom

Without Lip-Bu's leadership and willingness to lead our Series A round, Innovium would have never existed.

Rajiv Khemani, Co-Founder and CEO Innovium

Francis has a great background in business, but he also puts in the time and effort to dive deep into the physics. As a result, he was able to grasp the massive opportunity ahead of us as a potential game-changer in computing industry.

Jungsang Kim, Co-Founder IonQ

Insights

The latest news from us
and our portfolio companies

6/5/2025

Nicolas Autret explores what makes the Swiss ecosystem uniquely positioned for global impact—and why patience, precision, and bold vision are essential in backing transformative startups.

5/26/2025

Nicolas Autret joins top investors to explore why deep tech is thriving in Europe despite market headwinds—highlighting AI, energy tech, and the need for stronger local funding. Watch the full panel from Hello Tomorrow Summit 2025.

4/16/2025

Virtue AI is building essential infrastructure for safe, secure, and compliant AI. With tools like VirtueRed, VirtueGuard, and VirtueAgent, they empower enterprises to deploy AI responsibly—addressing risks before they become failures.

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