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Blog post
May 2025
May 28, 2025
Investing in VREY
VREY enables landlords of multi-tenant buildings to generate and distribute solar energy directly to their tenants without becoming energy providers themselves.
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Hi and welcome
to STYX
to your first investor
to the Urban Living Lab VC
to greener cities and buildings
to STYX
Submit Your PitchDeck
We invest in entrepreneurs who reimagine "the urban" and gain significant competitive advantages from accessing our Urban Living Labs.
Industry Expertise
Get your solution client ready leaveraging the know how of seasoned industry leaders.
Real World Testing
Access buildings, infrastructure and customers from all across the real estate value chain.
STYX Urban Living Labs, your shortcut from idea to market
Imagine a place where your startup, your investors, customers and users are all on the same page. The Urban Living Lab is such a place - it's all about true value add for early stage startups in and around the built environment.
More about STYX Urban Living Labs
Meet the STYX Team
We are a European team of experienced entrepreneurs, real estate veterans, ecosystem architects, fund managers and corporate leaders.
David Zwilling
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CoFounder
David is a seasoned entrepreneur having exited a startup in his teens and led a hidden champion as CEO. Being an active investor in the asset class he knows his ways around real estate.
Linkedin
David Zwilling
Founder & CEO
David is a seasoned entrepreneur and deal maker having exited a startup in his teens and transformed his family's business from a local player into a hidden champion. Being an active investor in the asset class he knows his ways around real estate.
Linkedin
Florian Fischer
Founder & CEO
Florian, an economist by education, is a passionate entrepreneur. With experience in dynamic startup hubs like Silicon Valley and Tel Aviv, he leverages his open innovation and urban development background to scale the Urban Living Lab beyond Mannheim.
Linkedin
Inger Egeland-Helgøy
Managing Director Nordics
Inger has over 15 years of experience in the real estate & construction space, runs a family office focusing on early stage investments and is General Partner at Link Venture Capital.
Linkedin
Marcel Hauptenbuchner
Venture Partner Mannheim
Marcel is a real estate veteran managing two large real estate portfolios. He is always on the look-out for innovative solutions aiding the green transformation of his existing building stock.
Linkedin
Erik Walkling
Investment Manager
Erik was the first ever intern at STYX back in the founding days. He has a degree from University of Mannheim, experience from working at Startups as well as in M&A and - in line with STYX's vision - is passionate about European integration and the EU.
Linkedin
Jens Loff
Expansion Partner
Jens is an experienced board member and serial entrepreneur, having led three German consulting and tech companies. He is an active investor in EdTech and PropTech as well as facilitator in complex governance and policy projects.
Linkedin
Josep R. Novell LL.M.
Venture Partner Barcelona
Josep benefits from 10+ years of legal experience in the realm of M&A and Venture Capital. Deeply rooted in the entrepreneurial ecosystem of Barcelona, he successfully directs the consulting firm Now & Beyond. Josep is member of the American Bar Association.
Linkedin
STYX Blog
FAQ
What should I do before contacting STYX as a startup?
Before contacting STYX to inquire about a potential investment, founders should consider STYX's investment criteria. STYX invests at the earliest stage possible in European companies carrying a strong Urban Living Lab use case and value-add potential. STYX invests in startups in the following verticals: PropTech, Green & CleanTech, Smart City, and ConTech.
How do I make sure my pitch deck is on top of the pile?
We generally try to follow up with any startup inquiry that broadly matches our investment criteria. To ensure you are on top of the pile, highlight why you think you are an Urban Living Lab match or try to receive a warm intro through a network partner or fellow VC fund. Moreover, submitting your pitch deck through our website is definitely a great option.
STYX has no Urban Living Lab in my European location. What can I do?
STYX considers and has, in the past, invested in startups across Europe, no matter if a local Urban Living Lab exists in the given location. Just contact us through the contact options provided on the website (Submit your PitchDeck, LinkedIn, Email).
Why is STYX focusing on cities and buildings?
On the way to achieving EU climate goals, cities and buildings are a giant factor, and we think it's an amazing opportunity. Currently, 70% of emissions are produced in cities, and by 2030, 58% of the housing stock will be unrentable under EU taxonomy. The time to act on this opportunity is now.
I am not a startup. How can I collaborate with STYX?
STYX collaborates closely with the municipalities where it operates its Urban Living Labs, and we are constantly looking to expand to new locations. So, if your city wants to unlock private funding on the way to achieving public policy goals, you know where to find us.
Get in touch
You are a startup, potential partner or fellow Investor? Get in touch and let's shoot for the moon.
hello@styx.city
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STYX Locations
Our portfolio companies offer hands-on solutions to make buildings and cities future-proof.
Mannheim
Germany
Under construction
Stavanger
Norway
Under construction
Barcelona
Spain
Under construction
Copenhagen
Denmark
Under construction
