The LEF Group is a leading player in the energy transformation market, recognized among the most qualified companies in developing advanced technologies to enhance service quality across electricity distribution, rail transport infrastructures, smart cities, and both public and private lighting.

We are an Italian manufacturer specialized in medium-voltage transformers, fully designing and producing all products within our portfolio. We are a market leader in the railway sector and in transformer manufacturing, serving clients across Europe and international markets. Our operations are driven by flexibility, high quality standards, and fast, reliable execution in every project.

The Group consists of six companies, including one based in Poland, further strengthening our international presence and operational capabilities.