Rezonanz: The Venture Leader Fintech optimizing data-driven proxy voting and engagement intelligence

20.10.2025 10:30, Rita Longobardi

Meet Eleanor Willi, CEO of Rezonanz. The Fintech startup turns scattered proxy and engagement data into clear signals, enabling investors and companies to track, analyze, and improve communication in one platform. In November, Eleanor and the other nine Swiss National Fintech Team members will fly to London on a business development and investor roadshow.

Name: Eleanor Willi
Location: Zürich, CH
Nationality: American-Swiss
Graduated from: ETH Zürich & University of Zürich
Job title: CEO & Co-Founder
Number of employees: 4 (3 founders, 1 fellow)
Money raised: CHF 50k (Tenity pre-seed accelerator) + CHF 95k (non-dilutive grants from Innosuisse and private foundation)
Can you tell us who your product or solution helps, and how?
rezonanz helps asset owners, asset managers, and listed companies make shareholder stewardship transparent and actionable. Our platform aggregates and benchmarks proxy voting and shareholder engagement data from hundreds of global investors managing over USD 100 trillion in assets. We transform opaque disclosures into transparent, comparable insights. This helps asset owners monitor their performance across mandated managers and their own approach, companies better understand investor expectations, and helps investors coordinate for greater impact.

What market are you addressing and what is the potential of your startup in that market?
We address a two-sided global market. On one side, over 5,000 responsible asset owners and managers with more than USD 120 trillion AUM need transparent stewardship analytics to benchmark peers and monitor managers. On the other, 30,000+ public companies and their advisors need visibility into how investors vote and engage to shape AGM and IR strategies. By serving both sides’ needs with a single platform, rezonanz is building the intelligence layer for stewardship and governance: transforming a fragmented niche into a central driver of value, accountability, and impact.

How and where did you come up with the idea for your startup?
The idea came out of our experience working in asset management in Zürich, where we saw first-hand the informational asymmetries around proxy voting and shareholder engagement. We realized that by aggregating, standardizing, and analyzing these disclosures using more advanced statistical techniques from political science, we could turn a fragmented and opaque data into intelligence that empowers investors and companies alike.

What do you expect from the Venture Leaders roadshow, and how do you think it will help you achieve your vision?
We aim to connect with international investors and corporate partners who share our vision of transparent, effective stewardship. Networking in a key market will help us sharpen our value proposition, build strategic partnerships, and accelerate international growth.

What are your team’s key achievements to date? 
>    Launching our company in March 2024 by announcing the pilot Voting for Sustainability ranking results and generating multiple pieces of earned press.
>    Winning the pitch award at the 2024 Stewardship Summit in London, just two weeks after founding the company.
>    Onboarding some of Switzerland’s largest asset owners, from the national social security fund to leading pension funds.
>    Building our platform and extending data coverage to hundreds of investors managing over USD 102 trillion.

Is there a key principle or value that guides you as you build your company?
Transparency. We believe that open, data-driven insights empower better decisions by investors and company leaders.

What is the most important lesson you have learned as a founder?
As an early-stage startup, striking the balance between adapting to new opportunities and sticking with initial strategic instincts has been surprisingly challenging. The lesson I’ve learned is that this tension never disappears, but it can be managed with habits, boundaries, and co-founders who complement your strengths.

What is your favorite productivity hack or tool and why?
Getting up early: it’s the only move that actually creates more time in your day.

What was your dream job when you were a child?
Astronaut: a dream that only grew stronger after I attended U.S. Space Camp in Huntsville, Alabama.