Appointed as CEO of the business unit Digital & Semiconductor

Stephen Duffy has been designated CEO of the business unit Digital & Semiconductor at TÜV NORD GROUP at the beginning of January 2026. He will succeed Luis Goméz, who will retire.

Stephen Duffy is a physicist specialising in semiconductor, photonic and quantum technologies. From 2017 to 2024 he was the Managing Director of ALTER TECHNOLOGY TÜV NORD UK in Livingston. Most recently, Mr. Duffy worked as a Senior Director for the US company Coherent Corporation, a publicly traded leader in laser systems and photonic components for industrial and data centre applications.

Dr. Dirk Stenkamp, CEO of TÜV NORD AG: “With Stephen Duffy, we have gained an internationally experienced leader with extensive technological expertise and high operational experience. Stephen will provide further global impetus to the ongoing growth trajectory of the Digital & Semiconductor business unit, particularly in aerospace, IT, artificial intelligence, and the semiconductor industry. I would like to thank Luis Gómez today for his more than ten years of outstanding contributions to ALTER and the entire TÜV NORD GROUP.”

The business unit Digital & Semiconductor offers its customers services for digital and microelectronic systems in high-reliability applications under the brands ALTER, ALTER | HTV, and TÜVIT. With more than 700 employees at 11 locations in Germany, Spain, the UK, France, the USA, and Taiwan, the business unit operates globally and serves markets in aerospace, defense, medical, and various industrial sectors. In November 2025, ALTER opened a semiconductor assembly and test (OSAT) facility in Minnesota, US.

“I look forward to working with our team, customers, and partners on the challenges and opportunities of the future,” says Stephen Duffy. “Digital technologies, semiconductors, AI, cyber and quantum security are increasingly converging and have become strategic foundations for economic growth and technological sovereignty. In a world increasingly shaped by geopolitical changes and rapidly evolving supply chains, customers can rely on our cybersecurity testing for hardware and software, OSAT services, high reliability semiconductor services and long term component conservation and high value electronic system design and test.” As part of the TÜV NORD GROUP, the business unit Digital & Semiconductor benefits from international reach, technological support, and the broad industry expertise of the Group, a decisive advantage for innovation, growth, and international market presence.