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About Us

Experience You Can Count On

At Letto Sustainability, we pride ourselves on providing superior service offerings that are tailored to each and every client we have the pleasure of working with. No two projects are ever the same, which is why we take the time to really listen to our clients and understand their needs. 


We work with organizations of many sizes and sectors, all with the common goal to lessen their environmental impacts. Our team dedicates its time and resources to seeing each commitment through, and our clients can rest assured, they are never "lost in the shuffle". 


The moment you connect with us, you'll see, we are not your average consulting firm. We offer a comprehensive consultation to help identify gaps and opportunities, as well as a project plan with timelines, to help you realise your sustainability goals sooner.

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Our ramp up process is designed to educate and empower your organization to be accountable for its impact on the environment. Talk to us today about how we can support your sustainability goals, and put you on a solid track to success.

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Meet Sarah

Sarah Letto has an unwavering commitment to helping organizations reduce their environmental impact. For nearly a decade, she worked in the heart of Toronto, developing and implementing environmental sustainability programs for major hotel chains, including Marriott International and Virgin Hotels, before founding Letto Sustainability. 


She has worked with organizations in a variety of economic sectors, including transportation, education, foodservice, tourism and hospitality, to measure and track carbon footprints, and implement best practices in environmental sustainability.


Sarah holds a Bachelor's degree in Environmental Studies, with honours, from York University. She is a certified Greenhouse Gas Inventory Quantifier (GHG-IQ), and has completed her Environmental Professional (EP) designation with ECO Canada.  

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Our Partners

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