Participated · Seed · Aug 2025

Wallround is a Berlin-based renovation software startup offering a SaaS platform that manages every stage of renovation projects, from initial analysis and planning to purchasing, construction management, execution and final acceptance. The company was founded in 2024 and is led by Lukas Steinhilber, Tatiana Wotzasek and Henning von Oesen. Wallround raised a €4.2M seed funding round and intends to use the proceeds to expand operations, broaden its business reach and accelerate product development. Its core product bundles analytics, planning and procurement tools with construction execution and handover workflows to cover end-to-end renovation processes. The company aims to scale its offering across more projects and customers as it deploys the new capital. WALLROUND is developing a platform that assists private landlords in Germany to manage and execute property renovation, covering analysis, preparation and execution. The company focuses on enabling energy-efficient renovations and modernising inefficient residential properties across Europe. It targets multi-family homes in Germany as its entry market and aims to address the overdue €390 billion EU residential building renovation market. WALLROUND was founded recently and — according to the CEO — earned investor trust nine months after founding and four months after launch. The product addresses outdated, non-digital renovation processes and a shortage of reliable resources and guidance for energy-efficient refurbishments. Partnership with strategic industry players is central to its growth ambitions. Wallround delivers vertically integrated energetic renovations for multi-family houses and office buildings, combining planning, project steering and physical implementation with end-to-end digital processes. The founders—Lukas Steinhilber, Tatiana Wotzasek and Henning von Oesen—built the team to cover software, operational and construction expertise. The company develops technologies to accelerate renovation workflows for landlords and property holders but emphasizes that revenue is generated only once physical renovations are completed. Wallround reports a sales pipeline of over €3 million with a portion already converted, and says it has acquired leads without spending any money on marketing. The startup aims to become market leader in its Berlin segment, prioritize high quality and speed, and prepare expansion into new regions.

Led · Series B · Jan 2023

Founded in 2019 in Vienna by Delivery Hero co-founder Markus Fuhrmann and former Zalando CIO Philipp Erler, Gropyus applies advanced robotics and end-to-end digital planning to industrialise multistory housing construction. Its Richen factory employs 50 KUKA robots and achieves 86% automation, producing timber-hybrid walls and ceilings in about 16 minutes for modular on-site assembly. The approach shortens construction timelines by 30-50 %, lowers costs and carbon emissions, and allows high customisation of apartment layouts. Gropyus aims to scale output to 3,500 apartments, or roughly 250,000 m² of living space, per year by moving from one to three production shifts. The company is currently piloting a 68-unit klimaaktiv GOLD project in Salzburg with Rhomberg Bau and plans to run multiple projects in parallel across the EU. Financially, equity raised now exceeds €400 million, supplemented by €40 million in European Investment Bank (EIB) venture debt, with profitability targeted for 2027-28.