Siemens UK Management

Executive Managing Board

Carl Ennis

CEO Siemens plc and Smart Infrastructure, GB&I


Carl was appointed CEO Siemens in Great Britain and Ireland (GB&I) in December 2019 in addition Carl is CEO Smart Infrastructure, GB&I.  In this role, Carl is responsible for ensuring Siemens delivers a quality service to its customers, improving operations and focusing on how technology and innovation can be applied to maintain Siemens leading position in the energy infrastructure market.

Carl has a passion for engineering and has worked in a number of prominent management positions in the UK and overseas. Carl started his career as a technical apprentice for Whipp and Bourne Switchgear and is a keen advocate of the skills agenda, continuing to support investment in training new and existing engineering talent to address the skills shortage.  

Following his apprenticeship, Carl worked at GEC Alsthom for five years as a design engineer during which time he also graduated from Manchester Metropolitan University with an honours degree in Integrated Engineering Systems.  He then joined Siemens as the General Manager for Siemens Industrial Projects and Systems in 1997. After three years, he left to become Managing Director of Weir Valves and Controls before returning to Siemens in 2004 to manage Siemens Transmission and Distribution's service business. In 2007 Carl was appointed Divisional Managing Director of Siemens Power Generation and in 2010 Divisional Managing Director of Siemens Energy Service.

Carl was based for three years in Shanghai, China, where he was responsible for the Power Generation Services business in AsiaPacific, returning to the UK in January 2015 to take up his position as Managing Director of the Power and Gas, and Power Generation Services Divisions for UK and Ireland. Carl was appointed Managing Director of Energy Management in 2016 a position he held until being appointed to his current role in April 2019.


Carl now lives in the North East of England.  He is a keen motorbike enthusiast and scuba diving instructor, although prefers the warm waters of the Far East, to the North Sea.