Vireo Ventures

Founded in Berlin, Germany in 2020, Vireo Ventures is a venture capital firm focusing on seed and pre-seed stage investments. It supports European tech startups driving electrification and digitalization, taking a long-term view and providing extensive support to its portfolio companies.

Matthias Engel

Managing Partner

Sven Heiligtag

Partner

Felix Krause

Managing Partner

Thomas Labryga

Managing Partner

Julian Mallmann

Partner

Past deals in Sustainability

Reshape Energy

Seed Round in 2025
Reshape Energy provides building energy services for owners and tenants to reduce energy costs and improve energy performance. It offers a platform that includes energy assessments, financing, installation management, and asset optimization to help building owners and tenants lower costs, increase property values, and meet sustainability targets as part of the transition to a greener energy future.

DSB

Seed Round in 2025
DSB Deutsche Sanierungsberatung specializes in energy-efficient renovations for residential homes, focusing on sustainable solutions to combat climate change. The company operates by offering climate-friendly services, aiming to make homes climate-neutral.

Scale Energy

Seed Round in 2025
Scale Energy, based in Europe, specializes in developing and managing a vast, decentralized network of energy storage systems. The company's primary focus is to facilitate the transition to a cleaner power supply by offering industrial energy storage products that enable businesses to store and utilize renewable energy sources more efficiently. This not only promotes economic growth powered by green electricity but also enhances the resilience of the European economy. By monetizing their infrastructure, businesses can accelerate the energy transition, contributing to a more sustainable future.

Green Fusion

Series A in 2025
Green Fusion develops a cloud-based energy management platform for monitoring and controlling complex energy systems. The software provides intelligent control of heat, electricity, and e-mobility, focusing on hybrid building heating setups such as heat pumps paired with gas boilers and the integration of photovoltaic systems and electric vehicle charging. Serving housing corporations, the platform helps reduce carbon emissions and operating costs, enhances energy security of supply, and lowers maintenance requirements by coordinating generation, storage, and consumption across multiple energy sources.

Eco2Grow

Seed Round in 2024
Eco2Grow is a company that assists industrial small and medium-sized enterprises (SMEs) in navigating the challenges posed by the renewable energy transition. It provides these businesses with direct access to green electricity sourced from solar and wind farms, allowing them to secure energy at long-term fixed wholesale prices. By combining energy procurement with energy management solutions, Eco2Grow enables its clients to obtain sustainable energy while reducing pollution and achieving their climate objectives.

Atmen

Pre Seed Round in 2024
Atmen is a software-as-a-service platform designed to assist energy-intensive goods producers, particularly in the green hydrogen and e-fuels sectors, in certifying their production processes as environmentally friendly. The platform streamlines the certification process, allowing users to save up to 90% of the time typically required. Atmen's integrated IoT and software solutions enable producers to demonstrate the renewable origin of their energy, accurately quantify carbon emissions using operational data, and obtain government-approved certifications. Additionally, the platform offers pre-certification analysis to simulate energy flows, forecast carbon intensity, and ensure compliance with various certification standards. By providing digitized certifications and full transparency on lifecycle emissions, Atmen helps enhance trust and increase the bankability of green projects, ultimately supporting the commercial success of its clients' decarbonization efforts.

Green Fusion

Seed Round in 2023
Green Fusion develops a cloud-based energy management platform for monitoring and controlling complex energy systems. The software provides intelligent control of heat, electricity, and e-mobility, focusing on hybrid building heating setups such as heat pumps paired with gas boilers and the integration of photovoltaic systems and electric vehicle charging. Serving housing corporations, the platform helps reduce carbon emissions and operating costs, enhances energy security of supply, and lowers maintenance requirements by coordinating generation, storage, and consumption across multiple energy sources.

ImpactNexus

Seed Round in 2022
ImpactNexus develops SaaS solutions to assess, manage, and improve sustainability performance of startups and innovations. Its cloud-based platform helps mitigate environmental, social, and governance risks while maximizing positive impacts.

Green Fusion

Seed Round in 2022
Green Fusion develops a cloud-based energy management platform for monitoring and controlling complex energy systems. The software provides intelligent control of heat, electricity, and e-mobility, focusing on hybrid building heating setups such as heat pumps paired with gas boilers and the integration of photovoltaic systems and electric vehicle charging. Serving housing corporations, the platform helps reduce carbon emissions and operating costs, enhances energy security of supply, and lowers maintenance requirements by coordinating generation, storage, and consumption across multiple energy sources.

Green Fusion

Pre Seed Round in 2021
Green Fusion develops a cloud-based energy management platform for monitoring and controlling complex energy systems. The software provides intelligent control of heat, electricity, and e-mobility, focusing on hybrid building heating setups such as heat pumps paired with gas boilers and the integration of photovoltaic systems and electric vehicle charging. Serving housing corporations, the platform helps reduce carbon emissions and operating costs, enhances energy security of supply, and lowers maintenance requirements by coordinating generation, storage, and consumption across multiple energy sources.

Liefergrün

Seed Round in 2021
Liefergrün is a technology platform striving for the most convenient and sustainable delivery experience in e-commerce.
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