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. and Chair & Chief Executive Officer, Canadian Utilities Limited
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    Nancy C. Southern

    Chair & Chief Executive Officer, ATCO Ltd. and
    Chair & Chief Executive Officer, Canadian Utilities Limited


    Nancy Southern is Chair & Chief Executive Officer of ATCO Ltd., as well as Chair and Chief Executive Officer of Canadian Utilities Limited, an ATCO company. Reporting to the Boards of Directors, she has full responsibility for executing the strategic direction for both companies, and for the ongoing operations of ATCO.

    After joining the ATCO Board of Directors in 1989, Ms. Southern served as Co-Chair of ATCO for 16 years prior to being elected Chair in December 2012. Ms. Southern was named President & Chief Executive Officer of ATCO Ltd. in 2003. She serves on the boards of all ATCO subsidiary companies. Ms. Southern also serves as Executive Vice President of Spruce Meadows and is a Founding Director of AKITA Drilling Ltd., a Director of Sentgraf Enterprises Limited, an Honorary Director of the BMO Financial Group and serves on the Rideau Hall Foundation Board of Directors.

    In addition to her business leadership, Ms. Southern has long played a leading 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) and was given the name Aksistoowa'paakii, or Brave Woman in 2012. In 2015, at the request of German Chancellor Angela Merkel, Ms. Southern joined 100 global leaders for the G7 Forum for Dialogue with Women in Berlin.

    Over the course of her career, Ms. Southern has served with some of the world’s most prestigious and influential organizations. She is a member of The U.S. Business Council, a member of the American Society of Corporate Executives, a Canadian Member of the Trilateral Commission and a member of the South Australian Minerals and Petroleum Expert Group.  She is also a member of the Business Council of Canada, serves as Vice Chair of the Alberta Business Council and sits on the University of Calgary School of Public Policy Advisory Council. In March of 2020, Ms. Southern joined the Premier’s Economic Recovery Council with other policy and industry experts providing insight and strategies to accelerate diversification of Alberta’s economy. 

    In October 2020, Ms. Southern was honoured with the British Empire Medal for services to British equestrian, military and commercial interests in Alberta. In 2018, the University of Calgary School of Public Policy honoured Ms. Southern with the “Distinguished Policy Fellow Award”, in recognition of her lifetime commitment to Canadian public policy. Earlier that year, she received the “Canadian Business Leader Award” from the University of Alberta School of Business and its Business Advisor Council – making history as the first second-generation recipient of that honour. She was inducted as a Companion into the Canadian Business Hall of Fame in 2017. In that same year, in recognition of her achievements in economics and industry, Ms. Southern was awarded an honorary Doctor of Laws degree from Western University. In 2014, the University of Calgary awarded her its highest academic honour, an honorary Doctor of Laws degree bestowed in recognition of notable achievements and community service. In 2013, she received the “T. Patrick Boyle Founder’s Award” from the Fraser Institute for her entrepreneurial achievements and recognized accomplishments in the promotion of freedom and free markets. In 2012, Canada’s Public Policy Forum awarded Ms. Southern the “Peter Lougheed Award for Leadership in Public Policy”. 

    In 2016, Ms. Southern was included in Fortune’s list of the “50 Most Powerful Women” outside of the U.S. and recognized by the Financial Post Magazine’s “The Power List”. Previously, she was also included in Fortune’s list of the “50 Most Powerful Women in Business: The Global 50” and named as one of “The 50 Most Important People in Canada” in Maclean’s Magazine. In 2011, she was selected as “Business Person of the Year” by Alberta Venture Magazine and in 2005, was selected “Business Woman of the Year” by the Consumer’s Choice Awards. 

    Born and raised in Calgary, Alberta, Ms. Southern studied Economics and Commerce at the University of Calgary.

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

    Senior Vice President & Chief Transformation Officer


    George Constantinescu is Senior Vice President & Chief Transformation Officer with ATCO.

    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 was appointed Senior Vice President & Chief Transformation Officer 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 degree in Electrical Engineering. He is Chairman Emeritus of the Board of Directors 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, Executive Vice President, Corporate Development
    Bob J. Myles




    Bob Myles is currently the Executive Vice President, Corporate Development. 

    As Executive Vice President, Mr. Myles is responsible for growing the company’s footprint in strategic global markets, the ongoing operations of Canadian Utilities’ non-regulated businesses in North and South America.

    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 for ATCO Ltd.

    Appointed to this role in 2021, she is responsible to development and stewardship of the long-term, investment-focused growth strategy for the ATCO group of companies. She also has direct accountability for important ATCO investments including Neltume Ports and ASHCOR.

    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 Limited's 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.  


  • Sarah J. Shortreed, Executive Vice President & Chief Technology Officer
    Sarah J. Shortreed




    Sarah Shortreed is ATCO’s Executive Vice President and Chief Technology Officer.

    Her responsibility includes leading ATCO’s Information Technology (IT) function as it continues to drive agility and collaboration throughout ATCO’s global businesses. Ms. Shortreed is also responsible for ATCO IT’s approach to expanding and enhancing its enterprise IT strategy, including establishing ATCO’s technology roadmap for the future.  

    Ms. Shortreed's skill and expertise are drawn from her more than 30 year career that spans many industries and includes executive roles in business consulting, complex multi-stakeholder programs, operations, sales, customer relationship management and product management. She was recently the Chief Information Officer at Bruce Power and has previously worked at BlackBerry, IBM and Union Gas.  

    Ms. Shortreed earned her Bachelor of Engineering Science – Mechanical degree from the University of Western Ontario. She sits on the Board of Governors for the University of Western Ontario and is the current Chair of the Chief Information Officer (CIO) Committee at the Conference Board of Canada. She recently completed a term on the Board of the Natural Sciences and Engineering Research Council as well as the Digital Advisory Board to the CIO Branch of the Treasury Board of Canada. 

  • Wayne K. Stensby, Executive Vice President, Puerto Rico
    Wayne K. Stensby

    Wayne K. Stensby

    Executive Vice President, Puerto Rico


    Wayne Stensby is Executive Vice President, Puerto Rico. 

    In his role as Executive Vice President, Puerto Rico, Mr. Stensby is the President & CEO, LUMA Energy, a newly-formed company owned 50 per cent by Canadian Utilities Limited, an ATCO company, and 50 per cent by Quanta Services. LUMA will transform and operate Puerto Rico’s electric transmission and distribution system over a term of 15 years.

    Mr. Stensby joined ATCO in 1988 and has held a variety of leadership positions, including assignments in Canada, the U.K. and Australia. Most recently, in mid-2019, Mr. Stensby was appointed Executive Vice President, Corporate Development, where he was responsible for the growth of Canadian Utilities’ global portfolio of investments in premier energy infrastructure. In his Corporate Development role, he led the completion of the company’s Canadian fossil-fuel generation business divestiture, as well as the early completion and subsequent sale of Alberta PowerLine. Mr. Stensby initiated both strategic activities while in his previous role as Managing Director, Electricity, which he had held from 2015. Prior to this, he led ATCO’s Australian operations as Managing Director & Chief Operating Officer of ATCO Australia.

    Mr. Stensby holds a Bachelor of Science in Electrical Engineering from the University of Alberta and is registered as a Professional Engineer with APEGA.

  • Marshall F. Wilmot, President, Retail & Chief Digital Officer
    Marshall Wilmot

    Marshall F. Wilmot

    President, Retail and Chief Digital Officer


    Marshall Wilmot is President, Retail & Chief Digital Officer for ATCO and Canadian Utilities Limited. In his dual role, Mr. Wilmot is responsible for establishing the strategic long-range goals of ATCOenergy along with spearheading ATCO's digital presence and emerging e-commerce platform. 

    ATCOenergy has been ATCO and Canadian Utilities Limited’s retail arm providing electricity and natural gas to homes and businesses in Alberta since 2016, and also integrates ATCO Blue Flame Kitchen as a popular customer-facing program. Securing 10 per cent of competitive retail market share in just three years, ATCOenergy is an exciting area of growth for the company. 

    Since 2018, Mr. Wilmot has overseen ATCOenergy through a key transitional period and implemented company-wide digital development initiatives. With more than 30 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 and Canadian Utilities Limited’s digital landscape and optimizing the company’s nascent 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.