
The Team
Meet the people behind Demeter! Our team is a group of dedicated individuals who bring diverse expertise, creativity, and passion to everything we do. Together, we work toward our shared vision and are excited to share a little more about who we are with you.

Michael Warren
Michael has a BBA from Bishop’s University and is the CEO of Limiting Factor, a leading company dedicated to innovating, marketing, and educating on regenerative technologies that are transforming industries.
With a career spanning over 30 years, Michael has been a pivotal figure in the clean technologies sector, gaining extensive experience in agriculture, mining, and forestry across the globe.
Michael is recognized as a key innovator in the living soil, biofertilizer, and microbial spaces. Through his leadership at Limiting Factor, Michael continues to drive forward sustainable solutions that address critical environmental challenges.

Dr. Nina Lester
With over a decade of hands-on experience spanning aquaculture, mushroom cultivation, and business development, Dr. Lester brings deep scientific insight paired with practical expertise. She spent three years as the hatchery manager at one of South Africa’s largest abalone farms, where she oversaw critical stages of shellfish development and championed sustainable hatchery practices.
In Canada, she co-founded and helped grow Myterra Labs, a start-up dedicated to innovative mushroom cultivation. Over four years, she played a pivotal role in R&D, substrate formulation, and kit production while also managing e-commerce, sales, logistics, and customer relations—proving her strength in both science and business operations.

Todd Patterson
Todd is a seasoned leader with over 30 years of experience in the organic produce and agricultural industries. He holds an HBA from the University of Western Ontario and has completed the Accelerate Leadership Program at the Ivey Business School.
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For more than 12 years, Todd has been the President and Owner of P4 Group Inc., a company dedicated to pioneering sustainable and eco-friendly products and innovations both domestically and internationally. Throughout his career, Todd has cultivated significant relationships and connections across various levels of industry and government, solidifying his reputation as a key influencer in his field.
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Ridley Doolittle
Drawing on over two decades of experience spanning entrepreneurial ventures and Tier 1 CPG giants like BACARDI and General Mills, and as past CMO at Redlight Holland, Ridley brings a uniquely powerful blend of innovative thinking and operational discipline to the mushroom sector. His expertise in brand strategy, commercial analytics, and performance marketing has proven instrumental in identifying emerging consumer trends and translating them into market-leading products.
As a Stanford-educated entrepreneurial leader with a servant leadership approach, Ridley has consistently demonstrated his capacity to build high-performing teams while driving substantial business results. His comprehensive understanding of the functional mushroom landscape, combined with his track record of successful premiumization strategies across multiple categories, positions him as one of the industry's most accomplished marketing strategists and operational leaders.
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