3 March 2026 – steute Technologies, backed by global investment firm Battery Ventures, today announced the acquisition of Netherlands-based, medical device specialist Oldelft Ultrasound from investment firm Smile Invest. The transaction further expands steute’s capabilities in the medical technology sector and strengthens its global position as a provider of critical technical solutions for medical equipment manufacturers.
Founded in 1985, Oldelft Ultrasound is a global leader in the development and manufacture of high-performance, miniaturized ultrasound transducers, primarily used in cardiology applications. Operating from its state-of-the-art headquarters and production facility in Delft, the company employs approximately 90 highly skilled professionals and partners with globally recognized OEMs in the medical imaging sector.
The combination of Oldelft’s advanced probe technologies with steute’s advanced medical interface solutions creates a highly complementary portfolio. Together, the companies will offer customers an expanded range of integrated solutions tailored to demanding clinical and technical requirements.
In addition, the acquisition enhances steute’s engineering capabilities, innovation capacity and access to long-standing OEM relationships in the global medical imaging market. The transaction also supports steute’s ambition to accelerate international growth, expand recurring customer partnerships, and further increase the share of high-value, specification-driven products within the Group portfolio.
“We are delighted to welcome Oldelft Ultrasound to the steute family,” said Martin Kunz, CEO of steute Technologies. “Oldelft brings an outstanding portfolio of high-performing cardiology probes, deep development expertise, and long-standing relationships with high-profile OEM partners. By combining their image-enabling technologies with steute’s customized user interface solutions, we significantly strengthen our Meditec segment and enhance our ability to deliver high-value, system-relevant solutions to our customers worldwide.”
Erwin Dumay, CEO of Oldelft Ultrasound, commented: “At Oldelft, we have built a culture centred on innovation, continuous improvement and delivering meaningful value to our customers. We see a strong strategic and cultural alignment with steute and becoming part of steute Technologies will enable us to accelerate our growth, expand our technological capabilities and continue serving our customers at the highest level.”
“Oldelft has a strong reputation for reliability, precision and deep collaboration with OEM customers,” said Jesse Feldman, a Battery Ventures general partner and steute board member. “Pairing that expertise with steute’s medical interface solutions strengthens the combined group’s ability to support complex medical applications and deliver integrated, system-relevant solutions on a global scale.” Added Maximilian Jessen, another Battery investor involved with steute’s board: “Together, the combined group is well positioned to serve leading medical customers globally, while investing in innovation and growth.”
Bart Cauberghe and Ivo Vincente, managing partners at Smile Invest, said: “We have been proud to partner with Oldelft Ultrasound, which combines niche technological expertise with strong healthcare relevance, and to have supported the company through key milestones, including the launch of its in-house developed 4D TEE probe platform, the advancement of its technology roadmap, and its move to new premises. We thank the entire management team, especially former CEO and founder Rob Smallenburg and CEO Erwin Dumay, for their dedication and collaboration. We also appreciate the trust of Battery Ventures and are confident that Oldelft Ultrasound is in excellent hands for its next growth phase.”
About steute
steute Technologies is a German-based international technology company that specializes in the development and manufacture of high-quality switching devices, sensors, and wireless networks for complex medical and industrial applications. Founded in 1961, the company is headquartered in Löhne, Germany, employing approximately 450 people, and is represented in over 40 countries through dedicated facilities, sales subsidiaries and partners.
About Battery Ventures
Battery partners with exceptional founders and management teams developing category-defining businesses in markets including software and services, enterprise infrastructure/AI, and industrial technology and life-science tools. Founded in 1983, the firm backs companies at all stages, ranging from seed and early to growth and buyout, and invests globally from offices in Boston, San Francisco, Menlo Park, New York, London and Tel Aviv. Follow the firm on X @BatteryVentures, visit our website at www.battery.com and find a full list of Battery's portfolio companies here.
Contact: For any further information, please contact René Scherer (Marketing Director) at steute (r.scherer@steute.com).
