Driving climate impact, process efficiency, and superior returns in the built world.

Tim has over 25 years of experience in the real estate industry. As Managing Director of MOMENI Group, he brings extensive expertise in sustainability-driven, innovative real estate and asset management. Previously, he held various executive positions at JLL and Prologis, where he served as VP Operations, Projects & Sustainability Europe. As a Fellow of the Royal Institution of Chartered Surveyors, Architect and Real Estate Economist (EBS), he combines deep industry knowledge with a strategic investment perspective.

Stefan brings in more than 25 years of experience in the building technology  and housing industry. He is the CDO (Chief Digital Officer) of the GC group, the leading European HVAC wholesaler. He has an extensive track record in investing in company building projects and start-ups investment. He held various CEO and advisory roles in the  start area within the housing industry.

David has over 10 years of experience in innovation, digitalization, and sustainability in real estate. He previously served as Director of MOMENI Ventures, one of Germany’s leading privately owned real estate companies, started his careers at PwC in strategy and organization consulting, and was responsible for new business models and innovation as Head of Digital Experience at SIGNA. Throughout his career, he has evaluated over 750 startups and successfully executed more than 60 innovation-driven projects. He holds an M.Sc. in Real Estate Investment and Finance from the University of Reading and a B.Sc. in Management and Economics from the University of Innbruck. In addition to his work, he holds a lecture on Venture Capital at the Frankfurt School of Finance and Management.

Kai Panitzki has extensive experience as an entrepreneur, investor and business leader in the capital markets and technology sectors. With a background in law and banking, he founded and exited several companies and served, among others, as a board member of Börsenmedien AG and FinLab AG.

As Co-Founder of BitStone Capital, he built one of Europe’s leading venture capital platforms for Real Estate and ConstructionTech. Realyze Ventures is the successor fund built on this foundation, with a clear focus on scalable technologies that drive process efficiency and decarbonization – enabling superior returns.

Akin is a fund and transaction management expert. He gained extensive experience through several positions in the real estate industry, M&A and venture capital. Akin graduated from Fresenius – University of applied Science in Business Administration.

Marnix is a Director at Realyze Ventures. He holds a degree from Cologne Business School and brings a multi-faceted background in digital transformation and venture capital to the team.

Before entering the VC ecosystem in 2020, Marnix specialized in digitalization consulting within the automotive and banking sectors. He subsequently focused on building digital business models for corporate clients.

Prior to joining Realyze, he played a key role in establishing an early-stage venture capital fund, where he led pre-seed and seed investments across the InsurTech, FinTech, and Health sectors.

Matthias joined the team as an Investment Analyst, focusing on pioneering technologies at the intersection of construction, real estate, and energy.

His academic foundation is a degree in Business Administration and Mechanical Engineering from RWTH Aachen University and Aalto University in Finland. This interdisciplinary background allows him to rapidly grasp deep technical innovations and evaluate them from a commercial standpoint.

In addition to his studies, Matthias was involved in a social entrepreneurship project and gained practical investment experience at an early-stage VC fund. He has led investments and actively supports portfolio companies. Matthias is driven by a passion for empowering founders who are increasing productivity and decarbonizing the real estate sector.

Jan joined the team as an Investment Associate. Previously, he gained valuable experience at venture capital and corporate venture capital funds investing across the InsurTech, FinTech, and Digital Health sectors. Through this, he brings a deep understanding of what it takes to scale early-stage technology companies.

Jan holds a Master’s degree in Entrepreneurship from HHU Düsseldorf and gathered insights into one of the most vibrant startup hubs globally during his studies at Tel Aviv University. Driven by an entrepreneurial mindset, he is passionate about supporting forward-thinking founder teams on both an operational and strategic level, and is deeply fueled by a personal passion for driving the energy transformation.

Johanna holds a B.Sc. in Economics from Johannes Gutenberg University Mainz and an M.Sc. in Business Administration with a focus on Marketing Analytics from Goethe University Frankfurt, including study periods at Nova School of Business and Economics in Lisbon and the University of Western Australia in Perth.

Michael Stephan brings over two decades of expertise in entrepreneurship, venture capital, and law, with a strong track record in the fintech and digital real estate sectors. He has successfully managed and directed significant financial and market operations, demonstrating exceptional leadership in strategic development and team management. Michael’s passion lies in the foundation, building and growing innovative businesses.

• Business Angel / Investor /Lawyer with 20+ years of experience
• Serial Entrepreneurship, Venture Capital
• Founder of Planet Home Investment AG, repsonsible for > 50 Mio. Mezzanine Transactions
• Served as general counsel at HV Capital
• Managing Director equity capital markets of German midzied bank (transactions > €150 Mio)

Thomas Knaack has been active as a business angel for many years and holds more than 40 investments. He brings over 25 years of professional experience, first as a banker and later as managing partner of a consultancy specialized in financial services. In 2017, he founded the Rotonda Investor Office within the Rotonda Business Club. The office covers the full investment cycle, from Europe-wide market screening and pre-qualification to deal structuring and post-deal support.

Marc Stilke is a seasoned CEO and Chairman known for his leadership in scaling digital companies towards IPO, investing in innovative startups, and advising top private equity investors.

As the founder of The Mulberry Ventures, Christopher Lohmann supports innovative companies and venture funds with a focus on digitalization in insurance, global talent sourcing to address skill shortages, and modern organizational models, providing tailored support from consulting to financing, using his 24-year experience in the European insurance industry.

Michael Kokorniak has over 25 years of experience as a founder and software entrepreneur, expanding his company from a Berlin startup to a global corporation in aviation digitalization and decarbonization. Now, he works as an investor and consultant in various technology sectors.

Julia Arlt is an entrepreneur who has founded four companies, including successful exits. She led PwC’s Global Digital Real Estate strategy and fundraising and has supported leading PropTech funds such as Fifth Wall and MetaProp.

Michél-Philipp Maruhn is an entrepreneur, business angel, and the founder and host of the DIGITALWERK Podcast, one of Germany’s leading formats on entrepreneurship, construction, real estate, mobility, and energy. Before launching DIGITALWERK, he built and led VIVRE CONCEPT Groupe as CEO, overseeing real-estate development and construction services, and co-founded ROOBEO, a Berlin-based tech platform for material procurement in the construction industry. As a former competitive triathlete, he brings a strong performance mindset to driving digital transformation across the built-world ecosystem.

Matthias Leube is the Founder of Ecouity GmbH and serves on the Supervisory Board of neoshare AG, where he previously held the role of Chief Revenue Officer. Before that, he was CEO & Head of Capital Markets Germany at Colliers, leading major real-estate advisory, capital-markets and transaction mandates. He brings deep expertise across institutional real estate, digitalisation and capital markets.

Constantin Eis is CEO of CMBlu Energy, leading the company’s scale-up in organic solid-flow battery technology and industrial production. Prior to CMBlu, he held senior leadership roles including CEO of LichtBlick, CFO & Director at Tailwind International, and Co-Founder & Managing Director Europe at Casper. Earlier in his career, he served on the Management Board of home24 as CFO.

Markus Höfels has over 20 years of experience as a founder and entrepreneur, building and leading companies in recycling & environmental services and innovation-driven business models. He founded and scaled the Reclay Group and NOVENTIZ GmbH as managing shareholder for over a decade and is now leading innus as founder, focusing on new ventures and sustainable innovation. With raumparks Markus is furthermore developing brownfield-projects in Germany.