Participated · Seed · Feb 2026

Founded in 2022 as an ETH Zurich spin-off, Optiml offers a Real Estate Decision Intelligence (REDI) platform that continuously guides hold, sell, invest, and cap-ex decisions for large real-estate owners and their advisers. The software blends proprietary decision algorithms—built on more than a decade of ETH research—with finance and governance tooling to create transparent, auditable recommendations at the portfolio level. By ingesting structured and unstructured data from existing systems, it produces investment-committee-ready decision records that factor in individual building conditions, local regulations, budget limits, and net-zero targets. The company reported more than €2 million in contracted annual recurring revenue (ARR) during 2025 and has signed clients such as Patrizia, Catella, Empira, CTP, and Longevity Partners. Optiml’s product roadmap includes deeper functionality and expansion into additional geographies. The newly raised capital will fund these initiatives over the next two years.

Participated · Series B · Jun 2025

aedifion provides a smart, AI-powered cloud platform for real-time operational optimization of technical building systems. The platform helps building operators reduce energy use and portfolio CO2 emissions by up to 40 percent. Customers across Austria, Switzerland, Luxembourg, the Netherlands, Poland, the UK and the US use aedifion to manage nearly 500 buildings totaling over 5.8 million square meters. The company was spun out of RWTH Aachen University in 2017. aedifion has experienced rapid growth, with annual recurring revenue increasing by 100 percent year-on-year in 2024–2025. The product roadmap includes advanced AI-powered energy management features (load optimisation and demand-side management) and a generative AI "virtual building assistant" to streamline reporting, troubleshooting, and maintenance. aedifion offers a built environment cloud management platform that helps commercial building operators monitor, manage and reduce energy usage across their estate. The platform combines engineering and information technology expertise across a broad portfolio of solutions. The company plans to use the newly raised funds to further develop the platform. Led by founder and CEO Johannes Fütterer, aedifion was spun out of RWTH Aachen University’s Institute for Building Technology in 2017. It has participated in research initiatives funded by the German Federal Ministry of Economics and Climate Protection and collaborated with research institutions including FU Berlin, University of Stuttgart and Fraunhofer ISE. Aedifion has partnered with industry players such as Eon, Uniper and Züblin. aedifion operates a plug-and-play, AI-based cloud platform that autonomously analyses and optimises technical building operations to boost energy efficiency, reduce CO2 emissions and lower operating costs. The software is used across more than 1,000,000 m² and by over 50 customers, including Art-Invest Real Estate, Commerz Real and ECE. The company employs more than 30 people and focuses on applying its automation to both existing buildings and new construction to meet tightening ESG and regulatory requirements. aedifion plans to use fresh capital to continue development of its software and accelerate digital decarbonization of real-estate portfolios. The platform emphasises rapid deployment without additional hardware and claims payback within months for many customers. Founded in 2017 and based in Cologne, the firm positions itself as a specialist in building-efficiency software for non-residential properties. aedifion develops software that analyzes building operating costs to help property owners identify and reduce expenses. The platform is positioned as an IoT backbone for efficiency measures in both existing buildings and new projects, according to its investor. Its solution is already in use at customers including E.ON, ROM Technik and ZWP Ingenieur-AG. Management says the recent seed financing will allow the company to accelerate product development and expand sales. The company is led by founders Johannes Peter Fütterer and Felix Dorner. The financing is intended to support growth beyond 2020.

Participated · Series B · Apr 2025

node.energy provides software and services that enable medium-sized companies to cover their electricity needs through direct supply contracts and direct PPAs from wind farms and solar power plants. The company offers PPAs concluded directly with plant operators and uses its platform to manage supply processes, invoicing and the transparent provision of energy data for reporting and controlling. Founded by CEO Matthias Karger, node.energy positions its offering to help customers remain competitive and to contribute to securing Germany as a relevant business location. The company raised €15M in a Series B and intends to use the funds to expand operations and development efforts. The article does not disclose operating metrics such as revenue or user counts. node.energy, founded in 2016, offers opti.node, a software platform that simplifies management of wind and solar plants by handling billing, tax forms and notifications to authorities. The software is used to manage around 10,000 wind and solar power plants, making node.energy the market leader in Germany. The company plans to develop opti.node into a comprehensive end-to-end platform by adding functions to enable professional plant operators in commercial and real estate sectors to implement new business models such as direct solar power supply (tenant power or PPAs) and self-supply. The funds raised will be used for further software development and expansion of the platform. node.energy currently employs about 50 people and is led by founders Matthias Karger and Lars Rinn. node.energy offers a software-as-a-service that optimizes local energy concepts (microgrids) for industrial and commercial companies with on-site power generation. The platform is designed to help customers reduce both energy costs and CO2 emissions. The company intends to use the new funds to further develop its software and to finance a market launch in Germany. node.energy secured under €775k in financing from High‑Tech Gründerfonds and five business angels. The startup was founded in 2016 by Matthias Karger and Lars Rinn and is based in Frankfurt am Main, Germany. The funding is intended to support product development and the planned German market entry.

Participated · Series A · Jan 2025

Founded in 2021 and headquartered in Berlin, Green Fusion provides AI-powered software that monitors heating systems in real time, identifies inefficiencies, and implements adjustments to save energy and reduce CO2 emissions. Its solution targets apartment buildings and housing companies, and Green Fusion reports an average 16% reduction in heating expenses for customers. The company serves more than 100 housing companies managing over 800,000 rented apartments, with clients including Gewobag, Rheinwohnungsbau, and Spar- und Bauverein Dortmund. Reported savings translate to over €233,000 annually for a portfolio of 100 heating systems after installation and software costs. Growth plans include equipping 3,000 apartment buildings by 2025 (a 300% increase) and expanding into France and the Benelux region. Green Fusion also plans a dedicated unit to integrate renewable energy systems into its technology to future-proof heating infrastructures. Green Fusion builds a cloud-based energy manager for the intelligent control of heat, electricity and e-mobility in buildings. It focuses on hybrid heating systems such as heat pumps plus gas boilers and on coupling to photovoltaic systems and electric vehicle charging stations. The company uses machine learning to increase system efficiency, enable predictive maintenance and aims to improve efficiency by up to 20%, reducing costs and CO2 emissions. Its software targets housing corporations, private owners, contractors, municipal utilities and other operators of building energy supply systems. The first projects in the real estate industry have already been implemented. Green Fusion recently secured €225K in pre-seed funding and is expanding its team to further develop its product.

Led · Equity · Apr 2024

Okibo develops advanced robots for construction applications, prioritizing technical excellence over PR and marketing. The company is focused on creating innovative robotic applications to address labor shortages and the challenges faced by construction teams. Okibo announced a $7.85 million funding round to support growth and product commercialization. The investment will power expansion into Europe and the launch of operations in the US. Okibo has collaborated with strategic investor DAW SE for over two years in the DACH region. Existing investors Built-in Tech Pi Labs and NOVA by Saint-Gobain continue to support the company. OKIBO develops smart, autonomous robots for construction sites, with a first product that automates drywall finishing—plastering, sanding, and painting. Its robots feature 3D scanning and real-time modeling technology (USPTO approved), an autonomous path planner, floor-to-ceiling reach, advanced sensors, and are fully battery operated. The company positions its solutions to address skilled labor shortages and improve efficiency on construction projects, citing AGC survey findings on labor impacts. OKIBO was founded in 2018 and has conducted pilots in Germany. Leadership includes CEO and co-founder Guy German. BuiltUp Ventures has invested and aims to support OKIBO’s expansion into US, Middle East, and European markets via its 360-degree proptech ecosystem.