Westinghouse Names Dan Sumner as President and CEO to Lead Next Phase of Global Nuclear Growth
Westinghouse Electric Company has announced the appointment of Dan Sumner as its President and Chief Executive Officer, effective immediately. The decision formalizes Sumner’s leadership after serving as interim CEO over the past year and signals the company’s confidence in his ability to guide Westinghouse through a period of accelerating demand for nuclear energy solutions worldwide.
Sumner steps into the role with nearly 25 years of international experience spanning energy, finance, and industrial sectors. Over the last 12 months as interim CEO, he has played a central role in stabilizing operations, sharpening strategic priorities, and positioning the company to capture growth opportunities across both its operating plant services and new plant construction businesses. His appointment reflects continuity in leadership as well as a forward-looking strategy focused on innovation, execution, and global expansion.
During his interim tenure, Sumner worked closely with the executive team to reinforce Westinghouse’s market position as a leading provider of nuclear technology, fuel, and lifecycle services. The company has increasingly focused on supporting the global nuclear fleet while also advancing next-generation reactor projects, including large-scale nuclear plants and small modular reactors (SMRs). His leadership has been credited with strengthening customer relationships, improving operational performance, and aligning the company’s long-term vision with evolving global energy needs, particularly the growing emphasis on clean and reliable baseload power.
Prior to assuming the interim CEO role, Sumner led Westinghouse’s Global Operating Plant business, a critical division responsible for delivering products, engineering services, and maintenance solutions to nuclear power plants around the world. In that capacity, he oversaw complex, safety-critical operations that support utilities in maintaining high performance and regulatory compliance. His experience in this role gave him deep insight into customer needs and the operational realities of nuclear facilities, further strengthening his qualifications to lead the organization at the highest level.
Earlier in his career at Westinghouse, Sumner served as Chief Financial Officer from 2017 to 2023, a period marked by significant transformation for the company. As CFO, he was instrumental in reshaping the company’s financial structure, improving cost discipline, and supporting strategic investments in growth areas. His leadership helped guide Westinghouse through a critical phase of repositioning, enabling it to emerge stronger and more competitive in a rapidly changing energy landscape. His financial expertise, combined with operational leadership, has made him a well-rounded executive with a comprehensive understanding of the business.
Before joining Westinghouse in 2010, Sumner built his career in banking and the metals industry, holding various financial roles that provided him with a strong foundation in global markets, capital management, and industrial operations. This diverse background has contributed to his ability to navigate complex business environments and drive sustainable growth in a highly regulated and technically demanding sector like nuclear energy.
Commenting on the appointment, Dominic Kieran, Chairman of the Westinghouse Board of Directors, expressed strong support for Sumner’s leadership. He emphasized that Sumner’s deep knowledge of the company and the nuclear industry, combined with his proven track record, positions him well to lead Westinghouse into its next phase of growth.
Kieran highlighted that the company is entering a period of renewed opportunity, driven by increasing global recognition of nuclear energy as a key component of decarbonization strategies. Governments and utilities worldwide are investing in nuclear power to ensure energy security, reduce carbon emissions, and support electrification efforts. In this context, Westinghouse is well positioned to play a central role, leveraging its technology, expertise, and global footprint.
Under Sumner’s leadership, the company is expected to continue expanding its presence in both mature and emerging markets. This includes supporting the existing fleet of nuclear reactors with advanced fuel technologies and digital solutions, as well as pursuing new build projects that incorporate cutting-edge reactor designs. The company’s focus on innovation and collaboration is also expected to drive partnerships across the energy ecosystem, including with governments, utilities, and industrial stakeholders.
In his remarks, Sumner expressed both pride and optimism about the company’s future. He acknowledged Westinghouse’s long and influential history in the nuclear industry, noting its contributions to the development of nuclear power over several decades. At the same time, he emphasized the importance of looking ahead and embracing the opportunities presented by the global energy transition.
He underscored his commitment to working closely with shareholders, the leadership team, and employees around the world to deliver value and achieve the company’s full potential. He also highlighted the importance of maintaining a strong safety culture, fostering innovation, and continuing to meet the evolving needs of customers.
The appointment comes at a time when the nuclear industry is experiencing renewed momentum. As countries seek reliable and low-carbon energy sources, nuclear power is increasingly seen as a critical part of the solution. Westinghouse, with its extensive experience and technological capabilities, is poised to benefit from this trend, and Sumner’s leadership is expected to play a key role in shaping the company’s trajectory.
Overall, the decision to appoint Dan Sumner as President and CEO reflects a strategic commitment to continuity, stability, and growth. With a deep understanding of the business, a strong leadership track record, and a clear vision for the future, Sumner is well positioned to guide Westinghouse as it navigates the evolving energy landscape and continues to deliver value to customers and stakeholders worldwide.
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