Editor’s Note
This acquisition by Swiss firm Microdiamant AG marks a strategic expansion into the U.S. market, enhancing its portfolio and global footprint in high-precision surface finishing.

The Lengwil-based Microdiamant AG, a leading specialist in diamond-based solutions for fine grinding, lapping, and polishing of high-precision surfaces, is acquiring the US-based Eminess Technologies from Arizona. This move significantly expands its international presence and solution portfolio, securing a key position in high-growth market segments. The company, led by brothers Daniel and Martin Spring (pictured) in its third generation, has heavily invested in organic growth in recent years. With this acquisition, the company is taking a further step: it doubles its workforce from 60 to 120 and strengthens the strategic expansion of its business field. By acquiring Eminess, Microdiamant secures better access to the US market while simultaneously providing Eminess with better access to European and Asian markets.

Furthermore, the merger opens up growth opportunities in the semiconductor industry, which benefits from the expansion of electromobility and 5G/IoT. The complementary product ranges and combined expertise of the two companies will enable them to offer seamless surface finishing solutions for key industries (semiconductor, optics, precision industry, luxury goods, medical technology) in the future. Through the merger, the two companies are forging the global go-to provider of polishing solutions for high-tech materials.

Lengwil near Kreuzlingen will remain the global headquarters of the expanded company. All current production sites of Eminess and Microdiamant will remain unchanged. For a smooth integration, the management team of Eminess will also be taken over, including the current CEO, Dan Koharko, who will serve as Senior Director during a transition period. The new combined company will operate as a leading, global provider of seamless, one-stop surface finishing solutions.
