About Ratio Institute

Ratio Institute is an independent, non-profit organization dedicated to accelerating measurable sustainability and viability in food retail through expert collaboration, industry resources, and practical tools.

We have worked with over 1,000 grocery stores and 20 grocery chains to create store-level and enterprise sustainability solutions that reduce costs, shift internal cultures, and improve overall performance.

Our Team

Jonathan Tan

Jonathan brings to Ratio Institute more than 20 years of experience as an entrepreneur and a business executive for both Fortune 500 and privately held companies. His career began with driving energy efficiency at food manufacturing and food packaging plants. He transitioned to energy-efficiency work at food retail outlets in the early 2000’s, focusing on refrigeration, HVAC, and lighting. Jonathan holds a bachelor’s degree in Organizational Studies from Saint Louis University, a Master’s in Business Administration and Management from Pepperdine University, and has completed continuing education units at the University of Oxford.

Peter Cooke

Peter comes to Ratio Institute with over 20 years of experience developing sustainability programs, including starting one of the nation’s first green hotel programs. That success led Peter to develop a similar program for Hannaford, New England’s largest grocery chain. Later, at Manomet, a sustainability non-profit, Peter founded the Grocery Stewardship Certification (GSC) Program in 2012. The GSC became a nationwide sustainability platform for the grocery industry. Peter is ISO 14001 Lead Auditor certified, Commercial Energy Auditor trained, Building Operator Certified, and Hazardous Waste Operations certified. Peter serves as adjunct faculty for Antioch University, Tufts University, and the University of Maine.

Courtney Dragiff

Courtney joins Ratio Institute with over a decade of experience in land conservation and water management. After receiving an M.S. in International Sustainable Development and Climate Change from Antioch University New England, she helped develop Ratio’s suite of ESG reporting tools. She now focuses on circular economies and operational efficiency within the food retail industry.

We collaborate with food retailers on:

Advancing sustainability

Reducing operational costs

Generating value from data

Aligning business strategy with regulatory requirements

Protecting against economic volatility

Improving employee retention

Our Mission

Accelerate viability and measurable sustainability in food retail through expert collaboration, industry resources and practical tools.

Our Vision

A successful and sustainable food industry leading the way to a viable future.