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Building Something Better Together

We are a team of ordinary people who are
dedicated to doing extraordinary things.

Postelsia builds a company culture around integrity, customer service and happy employees. Each team member expresses their intelligence and creativity in the work that they do and in turn impresses each and every client that we work with. 

As the newest division of Where Food Comes From, the leading provider for third-party certification and verification services to the food industry, we take on challenges, constantly innovate, and create value through knowledge.

Strategic Advisors

Helene York

Helene York


A supply chain innovator with nearly two decades of global and national experience, Helene has held several leadership positions including serving as the Head of Social and Environmental Responsibility for Guckenheimer, as Global Director, Responsible Business, for Compass Group at Google and as Director of Purchasing Strategy and Strategic Initiatives at Bon Appétit Management Company. Helene currently serves as an adjunct professor in the Food Business School of the CIA. She started her career in food promoting sustainable seafood to chefs who, along with supply chain managers, are the “choice editors” of our food system and can be the real levers of change. Helene has also written for The Atlantic online magazine. She graduated from Harvard College and the Yale School of Management. 

Hari Pulapaka

Hari Pulapaka


A tenured, Associate Professor of Mathematics on faculty at Stetson University, Hari is also a classically-trained professional chef. A four-time semifinalist for a James Beard Best Chef Award, Hari has cooked by invitation at the prestigious James Beard House, earned multiple Food and Wine Best Chefs in America recognitions, was chosen as a GRIST 50 inductee for his pioneering work in reducing food waste in his restaurant kitchen, earned and maintained National Leader status in the JBF Smart Catch Program, and remains a member of the Seafood Watch Blue Ribbon Task Force. Hari is co-founder and co-owner of award-winning Cress Restaurant, Chef Partner for EnRoot, Certified Executive Chef of the American Culinary Federation, Worldchefs Certified Master Chef, won gold at the Inaugural national Chefs Taste Challenge in New Orleans, and has published two books – most recently, Dreaming in Spice: A Sinfully Vegetarian Odyssey. Hari is Founder of The Global Cooking School, partnering with causes and organizations committed to improving the Global Food Systems at all levels.

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