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Osterode Germany, 1 April
Piller Group GmbH today announces the appointment of Dean Richards as Co-Chief Executive Officer (Co-CEO), effective 1 April.
Richards currently serves as President and CEO of Piller Power Systems Inc. in the United States, where he has led the company’s operations in one of its most strategically important markets.
His appointment comes at a time of continued strength across Piller’s established mission-critical sectors, from banking and healthcare to aviation, telecoms, manufacturing, government and defence. At the same time, rapid growth in AI-driven data centres is driving new demand for resilient, high-performance power infrastructure, particularly in the United States.
He brings more than 30 years of engineering and leadership experience to the role. Dean began his career as an electrical apprentice with British Steel in the United Kingdom and has since held a wide range of engineering and management positions across the UK, Japan and the United States.
As Co-CEO, Richards joins Dr Detlev Seidel, Managing Director Group Operations. Seidel’s deep operational knowledge and experience across the business, combined with Richards’ commercial and technical expertise, form a strong joint leadership team for the business.
Richards’ appointment follows the planned retirement of Dr Zaki Slgini in June, following a transition period. The company extends its sincere thanks to Dr Slgini for his leadership and significant contribution to the development and success of the business.
Commenting on the appointment, Anthony J. Langley, Chairman & CEO of Langley Holdings plc, said:
“Dean is a highly experienced and respected leader who has demonstrated strong leadership in the United States and earned the confidence of colleagues across the Group.
His appointment adds commercial and technical depth alongside Detlev’s wealth of operational experience.
Piller has built its reputation over decades in some of the world’s most demanding mission-critical environments, and that remains the foundation of the business. At the same time, markets are evolving quickly, particularly in the United States, where growth in AI-driven data centres is increasing demand for resilient power infrastructure.
I would also like to thank Zaki for his commitment and leadership. He leaves the business in a strong position, and we wish him well in his retirement.”
Dean Richards said:
“Piller has an exceptional heritage, deep engineering expertise and a strong reputation around the world. I am proud to take on this role at an important time for the business.
I look forward to working alongside Detlev as we continue to build on Piller’s strengths and support our customers in the world’s most demanding mission-critical environments.”
Dean Richards will assume his new role on 1 April, with Dr Zaki Slgini remaining in position until June to ensure a smooth and orderly transition.

About Piller
Piller power conditioning and backup technology can be found in major mission-critical power applications globally. For many of the world’s banks and financial institutions, governmental agencies, data centre operators, telecoms networks and airports, as well as hospitals, semiconductor and pharmaceutical manufacturers, Piller equipment is the go-to technology.
Piller was founded by Anton Piller in Hamburg in 1909. Today the company is headquartered in Osterode, near Hanover in Germany, with subsidiaries across Europe, in the USA, India, Asia and Australia. The company employs around 1,000 people worldwide.
In 2016 Piller acquired the Austin TX kinetic energy storage producer, Active Power Inc.
Piller Group GmbH is a wholly owned subsidiary of the UK engineering and industrial group, Langley Holdings plc and is part of the Power Solutions Division.
About Langley Holdings
Langley Holdings plc is a privately owned UK-based engineering and industrial manufacturing group, principally producing capital equipment for diverse markets worldwide. Langley businesses are either outright market leaders, or occupy strong niche positions in their respective fields, providing advanced technologies in a solutions-based approach. The group operates in three principal areas: Power Solutions; Print Technologies and Other Industrials. The group’s operations are based in Germany, Italy, France the UK and Norway, with 18 production facilities in Europe, the UK and the USA. The group has more than 90 subsidiaries worldwide and employs over 5,000 people. Langley Holdings was established in 1975 by the current Chairman & CEO, Anthony Langley and remains entirely in family ownership.