Stemas

Stemas

Stemas was founded in Munich to address a structural gap in the German DACH-region M&A landscape: profitable companies with €10–30 million in revenue that are too small for traditional private equity and too complex for an individual management buy-in. The firm takes majority control — at least 51 percent, and typically more than 75 percent — in situations involving unresolved succession, corporate carve-outs, or underperformance, then stabilizes the business and holds it indefinitely. Its investment criteria explicitly reject any planned exit, positioning Stemas as a permanent home rather than a temporary owner. The firm concentrates on three core industrial verticals: electronics manufacturing, electric drive systems, and fire safety equipment. Confirmed holdings include Phytron, whose stepper motors are deployed in the Mars rover Curiosity, and Eker Systemtechnik Electronic, a manufacturer of control devices for step transformers in medium- and high-voltage grids. Other known companies in the electronics cluster — Frank Elektronik and EPS Electronic Products & Systems — produce LED boards up to 1.5 meters and wired circuit boards for traffic management systems, respectively. In fire safety, Fritz Massong distributes the Innotrade hose-coupling system. Stemas operates exclusively in Germany and the broader DACH region, sourcing deals through a network that includes the GCI Management consulting firm, in which Stemas holds a 30 percent stake. The firm is led by Stefan Hasper and Thomas Müsch, both engineers by training who previously worked at KPMG Consulting and Roland Berger, respectively. Stemas does not disclose its total headcount, capital raised, or assets under management. The firm maintains a deliberately lean governance structure: the two-member management board is overseen by a three-person supervisory board that includes Helena Vonholdt, who joined in 2023 after building the business development and strategy function at law firm Taylor Wessing. Stemas also maintains ties to Thofan Immobilien, a real estate management company founded in 2011 with identical ownership, which administers the Stemas group’s property assets. Stemas’s structural distinction is its explicit no-exit policy — a guarantee that separates it from even long-hold private equity funds and makes it a direct competitor to family offices seeking operational control of small industrials. While other permanent-capital vehicles exist in Germany, few combine the same narrow revenue-band focus, in-house turnaround capabilities via the GCI Management relationship, and a supervisory board drawn from the country’s consulting and legal elite. All holdings continue to operate under their own brands, with Stemas providing centralized support in strategy, financing, and cross-portfolio collaboration.