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Trio is a global sustainability and energy advisory company that helps large commercial, industrial and institutional organizations navigate the clean energy transition. A subsidiary of Edison International, Trio provides integrated strategy and implementation services – in sustainability, renewables, energy procurement, conventional supply, energy optimization and transportation electrification – to help the world’s largest organizations meet their strategic, financial and sustainability goals. Trio serves some of the world’s largest businesses – including a number of the Fortune 500 and Fortune Global 500 – spanning the manufacturing, automotive, pharmaceutical, food & beverage, technology, logistics and real estate sectors

For more information about Trio visit

Contact Information

Emily Williams

Vice President, Strategy & Sustainability

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