Vienna-based deep tech startup Optimuse has raised €4 million in seed funding to expand its AI platform for the engineering, renovation, and operation of buildings. The round was led by seed + speed Ventures and Blum Ventures, with participation from existing investors Matterwave Ventures and aws Gründungsfonds.
Founded in 2021 by Dominik Pezzei, Fabian Pitscheider, and Felix Maximilian Hofer, Optimuse employs AI-based simulations to recommend the most economical and climate-friendly technical solutions for heating, cooling, ventilation, and building envelopes. By analysing existing plans, the platform generates a digital building model, compares thousands of design variants, and provides clear recommendations for action.
The company claims its software can make preliminary engineering 70% faster, cut construction costs by 10% through better sizing of systems, and deliver 20% additional emissions savings. Its solutions are applied across residential, commercial, and industrial projects.
“Buildings are becoming increasingly complex, both technically and in terms of regulations. Our AI solution provides clarity: it compares variants in a very short time and recommends the most sustainable and economical solution. This enables our customers to plan, transform, and operate buildings in a future-proof and cost-efficient manner,” said Dominik Pezzei, Managing Director and Co-founder of Optimuse.
The fresh capital will support international expansion and distribution of the platform. Optimuse is already being used in renovation projects to model modernisation paths, such as heating replacement or conversions from gas to heat pumps, and in new construction projects to optimise system sizing and reduce investment and operating costs.
Alexander Kölpin, Managing Director at seed + speed Ventures, said: “What convinces me about Optimuse is the combination of sound technology and practical application: using digital simulations, the team shows early on in the engineering phase which renovation measures are technically feasible and also economically viable. In a market with enormous renovation needs and strict efficiency requirements, this is a real game changer.”
André Hammerer, Managing Director at Blum Ventures, added: “Optimuse addresses one of the biggest issues of our time: the sustainable transformation of the building stock. With its combination of AI, building physics, and practical simulation, the team creates real added value for builders, planners, and operators. We are delighted to support Optimuse on its path to internationalisation.”
The startup currently employs around 20 people, combining expertise in construction, building physics, building technology, and AI. Its mission is to make construction and renovation projects faster, more cost-effective, and more sustainable.
Read the orginal article: https://www.eu-startups.com/2025/10/vienna-based-optimuse-raises-e4-million-seed-round-to-scale-ai-driven-building-engineering/
