With The Bau Ventures and WISAG Facility Service Holding SE and additional well-capitalised family offices, the fund is strategically expanding its industry-backed investor ecosystem across the construction, real estate and energy value chain.
Cologne, 15.07.2026 – Realyze Ventures, one of Europe’s leading sector-focused venture capital platforms for the transformation of construction, real estate and energy, has completed an additional closing, welcoming further leading industry partners and family offices to its fund. More than 30 investors – including family offices with extensive real estate portfolios as well as leading players in the construction, real estate operations and energy sectors – have committed to the fund to date.
With WISAG and The Bau Ventures, Realyze Ventures adds two additional leading industry partners and continues to expand its strategic network.
Together with its existing investors, Realyze Ventures strengthens its position across key parts of the construction and real estate value chain: Through The Bau Ventures, Drees & Sommer contributes deep expertise in consulting, project management, infrastructure, and strategic construction and real estate development. WISAG complements the ecosystem with particular expertise in technical and infrastructure-related services for property and land. These include facility management, building technology, commercial cleaning, security & service, catering, gardening & landscaping services.
This further strengthens Realyze Ventures’ platform strategy: startups gain not only capital, but direct access to real-world use cases, practical feedback and potential customers from within the industry. This accelerates market validation and scaling and creates the foundation for sustainable value creation and attractive returns.
“What sets Realyze Ventures apart is the close connection between capital, technology and the operational realities of the industry. By bringing in these new partners, we are strengthening exactly that,” says Tim Fischer, General Partner at Realyze Ventures. “In early-stage investing, this proximity to the market is a decisive driver of returns.”
This expansion of the ecosystem comes at a time of profound structural change in the construction, real estate and energy sectors. As decarbonisation, digitalisation, energy efficiency, labour shortages, productivity pressures and rising regulatory and economic requirements are reshaping the market, demand for scalable technology solutions continues to grow – creating a clearly defined investment window for early-stage investors.
“As part of the Realyze Ventures ecosystem, we can contribute to ensuring that promising technologies are not only funded, but successfully adopted across the industry,” says Steffen Szeidl, CEO of Drees & Sommer.
“We are looking for innovative technologies that make building operations more efficient and create added value for our customers. Realyze Ventures helps us identify these solutions early before they become the market standard,” adds Martin Riebschläger, managing director WISAG Facility Service Holding SE.

About Realyze Ventures
Realyze Ventures is a European venture capital fund specialising in the construction and real estate sector and its intersection with the energy industry.
Built around a network of leading industry players, Realyze Ventures addresses key challenges such as process inefficiencies, decarbonisation and the shortage of skilled craftsmen – driving the industry’s transformation and strengthening the long-term competitiveness and resilience of real estate portfolios.
The Realyze Ventures ecosystem provides direct access to validated technologies and creates the framework to integrate them systematically into existing value chains and unlock their innovation potential. The ecosystem is led by an experienced management team that combines deep sector expertise with venture capital experience to identify scalable technologies at an early stage and generate sustainable value for investors.
www.realyzeventures.com
