LEM Holding SA (LEM Holding) is a producer and seller of electrical measuring instruments and electronic automotive sensors. The company focuses on the development, production, and distribution of current and voltage transducers for applications in industry, traction, energy and automotive markets.

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LEM Holding is focusing its R&D initiatives on improving accuracy, bandwidth, isolation voltage, and robustness, which are essential for modern automated production systems. The company is advancing Silicon Hall-based Integrated Current Sensor products for industrial and automation applications, as well as developing TMR (Tunnel Magneto Resistance) and next-generation fast Hall sensor technology. In the renewable energy sector, LEM Holding SA is addressing the demand for current sensing with high power density, fast response times, and high surge capabilities. The company launched and expanded high current, high bandwidth, and digital-ready sensing platforms to support next-generation solar and wind inverters, grid integration, and hybrid renewable systems. Additionally, LEM Holding SA is working on reducing costs and materials to offer cost-competitive solutions in a consolidating market. In data center applications, the company is innovating integrated current sensors with capabilities around 150A and bandwidth greater than MHz. In the railway sector, LEM Holding SA has invested in a new railway billing system solution with remote diagnostic and maintenance features, as well as cybersecurity enhancements. The OLCI sensor family, featuring Open Loop Coreless Integral technology, targets the trackside infrastructure segment. In FY2026, the company spent CHF26.9 million on R&D which as a percentage of revenue stood at 9.3%.