b2venture Invests in Sitegeist with Support from VOY
Clemens Koós and Nico Nagel have advised b2venture on investment in Sitegeist.
Sitegeist, a Munich-based construction robotics startup, has raised EUR 4M in a pre-seed funding round.
The funding will enable Sitegeist to rapidly expand its team, hiring and scale the deployment of its automated, AI-enabled robots on real-world construction sites, helping concrete renovation companies overcome acute capacity constraints.
The financind round was led by b2venture and OpenOcean. Other well-known backers from the industry were Alexander Schwörer und Mario Wettengel, as well as Verena Pausder, Lea-Sophie Cramer, Andreas Kupke, Sven Degener, Inga vom Holtz and Paolo Oppelt.
About b2venture
Founded in 2000, b2venture is one of the most experienced venture capital firms in Europe. The firm backs exceptional founders building transformative technologies and companies across the continent through its early-stage funds and direct investment track.
b2venture is pioneering an approach that systematically combines direct and fund investments, supported by a community of more than 350 angel investors – founders, operators, and industry leaders who contribute capital, expertise, and networks to help startups grow.
Guided by a conviction-driven and long-term investment philosophy, b2venture builds lasting partnerships with founders, combining capital with deep operational support from its angel community. The portfolio includes DeepL, 1KOMMA5°, Raisin, SumUp, Nelly, and Urban Sports Club, as well as Araris Biotech and Neura Robotics, among others.
About Sitegeist
Sitegeist is a Munich-based construction robotics startup developing automated, AI-enabled, modular robots for infrastructure renovation. The company automates tough, labor-intensive construction tasks such as concrete removal and abrasive blasting, helping construction companies increase their productivity, improve working conditions, and tackle the massive renovation backlog. Sitegeist was founded by a team of four co-founders with strong roots in robotics, AI, and engineering: Dr. Lena-Marie Pätzmann (CEO), Julian Hoffmann (CTO), Nicola Kolb (COO), and Claus Carste (CPO). Three of the founders bring deep technical expertise in robotics and artificial intelligence, complemented by a business-focused founder with a strong commercialization background. Founded as a spin-out from the Technical University of Munich (TUM), Sitegeist emerged from the same robotics research environment as RobCo and is academically rooted in the work of Prof. Matthias Althoff. By combining cutting-edge robotics and AI with German engineering excellence, Sitegeist aims to address one of the construction industry’s most pressing challenges: scaling infrastructure renovation despite severe labor shortages.
About OpenOcean
OpenOcean is an early-stage venture capital firm investing in frontier technologies across Europe, with offices in London and Helsinki. Our mission is to invest in the disruptive, data-driven B2B software that is driving today’s AI revolution. We pride ourselves on building long-term relationships with founders, tracking start-up progress at the earliest stage, and making strategic and impactful investments of up to €6 million – typically at Seed or Series A. OpenOcean’s DNA is rooted in having a deep understanding of the underlying technology and software stacks, which drive the growth of innovative new digital platforms and services. With an entrepreneurial background from building several category-defining software businesses such as MySQL and MariaDB, we work together with founders to build and scale global category-leading companies. OpenOcean’s portfolio includes a range of leading European startups such as Binalyze, Booksy, IQM, MindsDB, Supermetrics, and Truecaller.
About UnternehmerTUM Funding for Innovators
UnternehmerTUM Funding for Innovators is the pre-seed fund of UnternehmerTUM, Europe’s foremost center for innovation and business creation. It invests early, often as the first institutional investor, in deep tech founders building category-defining companies. The fund specializes in hard tech and the code that powers it, backing scalable B2B technologies with billion-euro potential and helping founders move breakthrough science from lab to market. They offer founder-friendly convertible loans and are committed to follow-on investments, ensuring their companies have the resources to scale their ambitions.
About VOY
VOY is a law firm and tax consultancy for founders and investors, creating a digital client experience that focuses on additional value with direct and uncomplicated legal advice of the highest quality.