MUNICH, Germany, May 19, 2026 – Siemens Mobility signed an agreement to acquire key businesses of MERMEC Group, adding rail diagnostic vehicles, measurement systems, wayside signaling technologies and data infrastructure to its rail portfolio. The deal expands Siemens Mobility’s rail infrastructure work in Italy and adds MERMEC’s inspection and analytics operations to its onboard and depot-based diagnostics business.
“By combining MERMEC’s technological expertise and market access with Siemens Mobility’s global presence and technology leadership, we are strengthening our capabilities in diagnostics, asset-intelligence and signaling capabilities. This step expands our industrial footprint in Italy within our world-leading signaling business and significantly enhances our global diagnostics portfolio,” said Michael Peter, CEO of Siemens Mobility.
“Formally, I have been retired for nine months; at present, my health is not at its best, and my children are pursuing their own independent paths with their companies. For this reason, I sought a very solid group in the sector, in order to guarantee a secure future for my valued colleagues, who have contributed to making MERMEC the company it is today, wherever they may be. Becoming part of Siemens will offer them a global environment, strongly focused on innovation and sustainable growth. The transaction will help me invest in the other companies within my industrial holding, as well as contribute to the growth of businesses in Southern Italy that need to develop and create new high-quality employment,” said Vito Pertosa, president of Angelo Holding.
The acquisition covers MERMEC businesses in Italian wayside signaling, electrification, telecommunications, diagnostics, analytics and worldwide data infrastructure. The transaction excludes MERMEC’s investments in Angelstar S.r.l., Mont Saint Michel S.A.S., its subsidiary Compagnie des Signaux S.A.S. and MERMEC Deutschland.
Siemens Mobility plans to combine its urban signaling systems with MERMEC’s mainline railway infrastructure work in Italy. The combined systems will support modernization and digital operations across Italy’s national rail network.
MERMEC’s diagnostic vehicles use measurement systems and software to inspect railway infrastructure. Siemens Mobility will connect these tools with its asset intelligence and diagnostics systems for onboard and depot-based operations.
MERMEC employees, sites and industrial capabilities will move into Siemens Mobility, including the Ferrosud site in Matera. The covered businesses employ about 1,700 people, serve customers in more than 70 countries and generated about EUR 430 million in FY25. Siemens expects the transaction to be EPS, pre-PPA, accretive by the second year after closing.
Source: Siemens Mobility
About Siemens Mobility
Siemens Mobility is the rail and transportation division of Siemens AG, headquartered in Munich, Germany, with roots dating back to 1989 and formal setup in 2018. The company provides rolling stock, rail electrification, signaling and automation solutions, and digital services for passenger and freight transport. Its products support urban transit, regional rail, intercity, and high-speed rail networks. Siemens Mobility also delivers full-turnkey rail infrastructure solutions and long-term maintenance services. In fiscal year 2023, the division reported revenue of approximately €10.5B and employed around 40,000 people globally. Its portfolio includes electric multiple units, locomotives, trams, automation platforms, and rail asset management tools. The company supports public and private clients in improving transit and logistics reliability, safety, and efficiency through integrated, data-driven systems.
About MERMEC Group
MERMEC Group is an Italian rail technology company founded in 1970 and based in Monopoli, Italy. The company supplies railway signaling, electrification, diagnostic vehicles, measurement systems, inspection technology, data infrastructure and asset analytics software. It serves rail infrastructure owners, railway operators, transport agencies and industrial customers. Its systems support track inspection, infrastructure measurement, condition monitoring and maintenance planning. MERMEC also works in telecommunications, wayside signaling and digital diagnostics for mainline rail networks. Siemens said in May 2026 that key MERMEC businesses serve customers in more than 70 countries and generated about €430 million in fiscal 2025 revenue. The businesses covered by Siemens’ 2026 acquisition agreement employ about 1,700 people.