Leadership Team

Committed to our customers

From the field to the office, our people have always been our greatest competitive advantage. The incredible strength of our team around the world has enabled us to assemble an exceptionally experienced Executive Team. Comprised of talented business leaders from a diverse range of industries, our team brings decades of operational excellence and a shared, unwavering commitment to our customers.

Our Leadership Team

  • Nancy C. Southern, Chair & Chief Executive Officer, ATCO Ltd.
    Nancy C. Southern

    Nancy C. Southern

    Chair & Chief Executive Officer, ATCO Ltd. 

    Nancy Southern is Chair & Chief Executive Officer of ATCO Ltd., and Chair & Chief Executive Officer of Canadian Utilities Limited, an ATCO Company. Reporting to the Boards of Directors, she is responsible for the leadership, strategic direction, and operations of both companies. She also serves as Executive Vice President of Spruce Meadows Ltd. and is a founding Director of AKITA Drilling Ltd., a Director of Sentgraf Enterprises Limited, an Honorary Director of BMO Financial Group, and a Director Emeritus of the Rideau Hall Foundation.

    Ms. Southern has long played a prominent role in advocating on social issues of global importance—most notably, the rights of Indigenous peoples and the role of women in business. She is an Honorary Chief of the Kainai (Blood Tribe of Alberta) who bestowed the name Aksistoowa'paakii, or Brave Woman, upon her in 2012.

    Over the course of her career, Ms. Southern has served with many respected business and academic organizations. She is a member of the Business Council of Canada, the U.S. Business Council, the American Society of Corporate Executives, and is a Canadian member of the Trilateral Commission. She is also a member of the University of Calgary School of Public Policy Advisory Council.

    Ms. Southern is the recipient of numerous honours for her community leadership and commitment to democratic principles and free enterprise. In 2023, she received the Lifetime Business Achievement in the Americas Award from the Canadian Council for the Americas and was named Energy Person of the Year by the Energy Council of Canada. In 2022, the Canadian Chamber of Commerce honoured her with the Canadian Business Leader Lifetime Achievement Award. Also in 2022, she was honoured with the Queen Elizabeth II’s Platinum Jubilee Medal and, in 2020, she was awarded the British Empire Medal for services to British equestrian, military, and commercial interests in Alberta. In 2018, she received the Canadian Business Leader Award from the University of Alberta and was named a Distinguished Policy Fellow by the University of Calgary’s School of Public Policy in recognition of her lifetime commitment to Canadian public policy. She was inducted as a Companion into the Canadian Business Hall of Fame in 2017.

    Ms. Southern has been recognized by Fortune on its list of the “50 Most Powerful Women Outside of the U.S.” as well as its list of the “50 Most Powerful Women in Business: The Global 50.” She has been named one of the “50 Most Important People in Canada” by Maclean’s.

    Born and raised in Calgary, Alberta, Ms. Southern studied economics and commerce at the University of Calgary, which also awarded her its highest academic honour, an Honorary Doctor of Laws, in 2014. She also holds Honorary Doctor of Laws degrees from Mount Royal University, the University of Lethbridge, and Western University. 

  • Adam M. Beattie, President, Structures
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    Adam M. Beattie

    President, Structures


    Adam Beattie is the President of ATCO’s Structures division. Reporting to the Chair & Chief Executive Officer, Mr. Beattie is responsible for leading Workforce Housing, Space Rentals, and Permanent Modular Construction business lines worldwide, as well as the manufacturing of modular products.

    ATCO’s Structures division sells and leases Workforce Housing products in Canada, the U.S., Australia, Chile and other select international markets. The Space Rentals and sales business leases and sells relocatable modular offices, classrooms and other structures in Canada, Australia, the U.S. and Chile. . The Structures division also designs and manufactures permanent modular building solutions that include dormitories, schools, daycares, gymnasiums, hockey arenas, gas stations, multi-purpose community centres and offices.

    In Australia, Mr. Beattie managed the successful delivery of the Wheatstone LNG modular project and led the conceptualization and construction of our manufacturing facility in Western Australia. He has also been successful in driving the Structures Global Business Unit’s diversification into non-traditional, resource and construction markets in Canada. 

    Mr. Beattie joined ATCO in 2003 with Structures & Logistics in Brisbane, Australia and has held increasingly senior operational and leadership roles. Mr. Beattie moved to Perth, Western Australia to establish the ATCO Structures business in 2009, returning to Brisbane in 2011 to be involved in securing and executing three major Curtis Island workforce housing projects for LNG facilities being constructed on the island. Mr. Beattie completed his tenure in Australia as Managing Director in 2016, and then relocated with his family to Calgary to become Senior Vice President, North America.  In November of 2017, Mr. Beattie was promoted to the position of Senior Vice President & General Manager, Structures, responsible for all Structures business worldwide.

    Mr. Beattie earned a Bachelor of Business degree in 2001 from the Queensland University of Technology in Brisbane, Australia, and is currently studying for a Bachelor of Law degree from the University of Southern Queensland.

  • M. George Constantinescu, Executive Vice President & Chief Transformation Officer
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    M. George Constantinescu

    Executive Vice President & Chief Transformation Officer


    George Constantinescu is Executive Vice President & Chief Transformation Officer with ATCO and Canadian Utilities Limited. In this role, Mr. Constantinescu is responsible for leading transformation initiatives that enable innovation and growth across the enterprise and advancing new commercial initiatives around the world.

    Mr. Constantinescu first joined ATCO in 1986 and has held progressively senior positions in ATCO Gas, ATCO Electric, ATCO Power and ATCO’s Corporate Office. He played a pivotal role in establishing ATCO’s international electricity generation operations in Australia, as well as evaluating opportunities both in the United Kingdom and the United States. In 2002, he joined ATCO’s Corporate Office as Senior Manager, Corporate Development, where he was an instrumental member of the team that successfully led the strategic divestiture of ATCO’s retail energy operations. Mr. Constantinescu rejoined ATCO in his current role in February 2018, after spending 14 years cultivating substantial entrepreneurial experience in a range of diverse industries throughout North America. 

    Mr. Constantinescu graduated from the University of Alberta with a Bachelor of Science in Electrical Engineering and is a registered Professional Engineer with APEGA. He holds an ICD.D designation from the Institute of Corporate Directors and is Chairman Emeritus of OGEO Limited and ORTHOSHOP Geomatics Ltd.

  • Dale Friesen, Senior Vice President, Corporate Affairs & Chief Government Affairs Officer
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    Dale Friesen

    Senior Vice President, Corporate Affairs & Chief Government Affairs Officer


    Dale Friesen is Senior Vice President, Corporate Affairs & Chief Government Affairs Officer of ATCO.

    Appointed to the role in 2020, he is responsible for cultivating collaborative relationships with all levels of government and community partners, advancing ATCO’s global advocacy initiatives, and fostering authentic dialogue with constituents to create the conditions for shared, sustainable prosperity.  

    Mr. Friesen has more than 30 years of experience with ATCO, having served in a variety of technical, management, and senior leadership roles in both Canada and Australia. From 2015 to 2020, he served as Vice President, Indigenous and Government Relations & Sustainability, during which time he attended the United Nations Climate Change Conference of the Parties in Paris (2015), Marrakech (2016), Bonn (2017), and Katowice (2018) as an industry representative with the Canadian delegation, and in Madrid (2019) as a member of the Canadian delegation. During that same period, he oversaw the modernization of ATCO’s sustainability disclosures to align with best practice established by the Sustainability Accounting Standards Board (SASB) the Task Force on Climate-related Financial Disclosures (TCFD).

    Mr. Friesen serves as an Executive Officer of the Alberta Chamber of Resources Board and is Chair for the Canadian Electricity Association’s Generation Council. He has also served as a member of Environment and Climate Change Canada’s (ECCC) Technical Working Group for the Clean Fuel Standards, the Multi-Stakeholder Committee on GHG Regulatory Measures and Programs, and the Technical Working Group for Natural Gas Greenhouse Gas Regulations. He is also a member of the Delphi Excel Group and of the Canadian Chamber of Commerce. 

    A graduate of Mechanical Engineering from the University of Alberta, Mr. Friesen is a member of both the Association of Professional Engineers and Geoscientists of Alberta and of Engineers Australia. 

  • Jim Landon, President, Frontec
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    Jim Landon

    President, Frontec


    Jim Landon is President, Frontec, where he leads the development and implementation of an international growth strategy for ATCO’s disaster and emergency response, camp services and operational support services offering.

    Mr. Landon joined ATCO in May 2017 as Vice President, Strategic Research & Development for ATCO Ltd. and was responsible for leading a cross-functional team dedicated to exploring geopolitical, societal, technological and environmental trends impacting the business now and in the future.

    Mr. Landon retired from the British Army in May 2017 after a successful 28-year career having reached the rank of Colonel. Commissioned into the Royal Regiment of Fusiliers, he served as a commander and staff officer in the UK and overseas including operational tours in Northern Ireland, Bosnia, Kosovo, Sierra Leone, Iraq and Afghanistan. He was Commander of the British Army Training Unit in Suffield in Alberta from 2012 to 2015 before completing a final operational tour in Afghanistan in 2016.

    Mr. Landon is a Chartered Manager and was made a Member of the Order of the British Empire by Her Majesty the Queen in 2004. In 2017, he was the recipient of the US Bronze Star and NATO Meritorious Service Medal as Commander of a US Task Force in SE Afghanistan.

    Mr. Landon was educated at the Royal Military Academy Sandhurst and has a Bachelor’s degree in Law and a Masters in International Liaison and Communication.

  • Bob J. Myles, Chief Operating Officer, ATCO EnPower
    Bob J. Myles




    Bob Myles is currently the Chief Operating Officer, ATCO EnPower. 

    As Chief Operating Officer, Mr. Myles is responsible for our non-regulated energy businesses within Canadian Utilities that oversees our renewables, clean fuels, and energy operations businesses in Canada, Mexico and Australia.

    For over 25 years, Mr. Myles career has focused on the Canadian industrial sector in oil and gas, power and midstream markets. Most recently, he was the Chief Operating Officer of Stuart Olson Industrial Group where he led the operations since January 2016. Prior to joining Stuart Olson, Mr. Myles held a number of executive roles, including President and CEO of Tartan Canada Corporation; Managing Director of Energy at ATCO; Senior Vice President, Corporate Development at ATCO; President of ATCO Pipelines; and President of ATCO Energy Solutions.

    Mr. Myles is a past member of the board of directors of Alberta WaterSMART, a past Director and Chairman of the Canadian Energy Pipelines Association, and a past Director of both the Petroleum Joint Venture Association and the Canadian Gas Processors Association.

    Mr. Myles holds a Bachelor of Engineering degree in Mechanical Engineering, as well as a Bachelor of Science degree in Mathematics.

  • Katie J. Patrick, Executive Vice President, Chief Financial & Investment Officer
    Katie J. Patrick

    Katie J. Patrick

    Executive Vice President, Chief Financial & Investment Officer


    Katie Patrick is Executive Vice President, Chief Financial & Investment Officer, ATCO Ltd. and Executive Vice President & Chief Financial Officer, Canadian Utilities Limited. 

    In this position. Ms. Patrick is responsible for the development and stewardship of the long-term, investment-focused growth strategy for the ATCO group of companies. Working closely with financial leaders from ATCO businesses, she oversees the corporate financial function, including the controller’s office, investor relations, treasury, risk management and audit, as well as sustainability. Additionally, she has direct accountability for important ATCO investments including Neltume Ports and Ashcor. 

    In 2021, she was appointed Executive Vice President, Chief Financial & Investment Officer for ATCO Ltd. and assumed the Chief Financial Officer accountability for Canadian Utilities in 2024.

    Ms. Patrick joined ATCO in 2015 as Senior Director, Mergers & Acquisitions, responsible for assessing corporate mergers, acquisitions and strategy formulation. During her time at ATCO, she has held increasingly senior positions and played key roles in the financing of Alberta PowerLine, the largest P3 project in Canadian history, and in the divestment of Canadian Utilities’ fossil fuel-fired power portfolio in Canada. 

    Ms. Patrick began her career in investment banking in New York, later holding a variety of management and leadership positions in the legal, financial and agribusiness sectors in Canada and the United States. Prior to joining ATCO, she held positions at Bunge, Viterra, RBC and Lehman Brothers.

    She holds a Bachelor of Science in Economics degree from the University of Pennsylvania, Wharton School of Business and received her JD/MBA from the University of Toronto. She is also a Chartered Financial Analyst.

  • Becky A. Penrice, Executive Vice President, Corporate Services
    Becky A. Penrice

    Becky Penrice

    Executive Vice President, Corporate Services


    Becky Penrice is Executive Vice President, Corporate Services.  

    Ms. Penrice leads ATCO’s Human Resources, Executive and Common Services, Facilities Operations, Corporate Governance & Secretarial, Corporate Communications and Aviation teams.  In this position, she has overall responsibility for leading the administrative and business support functions of the Company; guiding the evolution of the corporate culture; supporting the Executive leadership and Board of Directors; and facilitating and driving key strategic initiatives throughout the organization.

    Prior to joining ATCO, Ms. Penrice was Interim CEO for Sears Canada Inc. where she led the wind down of the operations in Canada.  Prior to joining Sears Canada, Ms. Penrice spent over 18 years at the Hudson’s Bay Company where she progressed through several senior Human Resources and Operational positions spanning Logistics, Credit & Loyalty, Merchandising, Marketing, Global Sourcing and Specialty Retail as well as having North American responsibilities for Corporate Human Resources serving HBC and Lord & Taylor.  

    Ms. Penrice has a track record of implementing strategic transformation across all business channels, improving enterprise-wide performance.  She has a strong philanthropic commitment and recently served as the President of the Sears Canada Charitable Foundation.

    Ms. Penrice holds a Honours Bachelor Degree from York University.  She is a passionate advocate for the fight against world poverty and hunger, sponsoring individuals in need abroad and volunteering at food banks closer to home.  


  • Wayne K. Stensby, Chief Operating Officer, ATCO Energy Systems
    Wayne K. Stensby

    Wayne K. Stensby



    Wayne Stensby is the Chief Operating Officer of ATCO Energy Systems. With 35 years of experience spanning the breadth of the energy value chain, Mr. Stensby is responsible for the strategic direction and operations of ATCO’s natural gas and electric utilities, including the company’s interests in Puerto Rico. Collectively, these businesses provide safe, efficient, and reliable energy to millions of homes and businesses in hundreds of communities.

    Prior to his appointment as ATCO Energy Systems’ Chief Operating Officer in June 2023, Mr. Stensby served as the inaugural President & Chief Executive Officer of LUMA, a Puerto Rico company created to repair, rebuild, and restore electric utility service for over 1.5 million customers on the island. Mr. Stensby’s broad expertise in the energy industry helped initiate the historic transformation of Puerto Rico’s electric system. LUMA’s rebuilding of the Puerto Rican grid represents the largest capital investment in energy projects in Puerto Rico’s history and one of the largest ever funded by the U.S. federal government.

    Prior to assuming leadership of LUMA in 2020, Mr. Stensby was the Executive Vice President, Corporate Development, and was responsible for the growth of the company’s global portfolio of investments in premier energy infrastructure. While in this role, Mr. Stensby led ATCO’s competitive bid for the 15-year contract to transform Puerto Rico’s electric system and spearheaded the strategic divestiture of the company’s Canadian fossil-fuel generation assets. Mr. Stensby served as Managing Director, Electricity, from 2015 to 2019, and oversaw the early completion and subsequent sale of the award-winning Fort McMurray 500-kV West Transmission Project in northern Alberta—the longest 500 kilovolt (kV) AC transmission line in Canada. From 2014 to 2015, he led ATCO’s Australian operations as Managing Director & Chief Operating Officer, ATCO Australia.

    Mr. Stensby holds a Bachelor of Science in Electrical Engineering from the University of Alberta.

  • Marshall F. Wilmot, President, ATCOenergy, Chief Digital Officer, ATCO
    Marshall F. Wilmot





    Marshall Wilmot is President, ATCOenergy, and Chief Digital Officer for ATCO. In his dual role, Mr. Wilmot is responsible for spearheading ATCO’s digital presence, emerging e-commerce platform and strategic long-range goals for ATCO’s retail family of brands: Rümi, ATCOenergy and Blue Flame Kitchen. As a master brand, Rümi is a home solutions provider offering a wide range of retail products and home maintenance services, retail energy plans and culinary expertise.  

    Since 2018, Mr. Wilmot has been instrumental in the growth and development of ATCO’s retail initiatives, including overseeing ATCOenergy through a key transitional period, launching the Rümi brand in 2021, and implementing company-wide digital development initiatives.

    With more than 33 years of experience and considerable digital and marketing expertise gleaned from his years of service in senior executive roles at some of the nation’s most reputable brands in retail, airlines and telecommunications, Mr. Wilmot is transforming ATCO’s digital landscape and optimizing the company’s growing e-commerce platform to deliver a strong brand, drive significant growth and increase revenue.

    Mr. Wilmot earned an MBA from Nyenrode Business Universiteit, the Netherlands, and a Bachelor of Commerce degree (Bcomm, Finance Major) from the University of Calgary.