Chris Calderon — Founder & Systems Designer
Chris is a strategic product leader and regenerative systems designer. He leads Hidden Leaf’s recovery logistics for spent coffee grounds, turning urban waste into compost and future biochar pilots. With an M.S. in molecular physiology and experience at Starbucks, he blends data engineering with hands-on composting to build scalable, circular solutions.
Cal Zweigle — Director of Brand & Strategy
Cal is a communications strategist with an M.A. in Strategic Communication from East Carolina University. He leads brand, content, and partnerships for Hidden Leaf, translating complex sustainability work into clear stories and community action. His experience spans PR, corporate communications, SEO, and social media for mission-driven organizations.
Valerie Calderon — Operations & Client Success
Valerie oversees the insurance, incorporation, and compliance processes that keep Hidden Leaf legally secure and operationally strong. She manages the administrative workflows, applications, and institutional records that allow our regenerative systems to scale responsibly. Beyond compliance, Valerie leads client success—coordinating relationships after initial introductions and ensuring seamless communication, project organization, and timely delivery. Her work turns conversations into dependable collaboration, giving partners a clear, consistent point of contact they can trust.
Hidden Leaf Farm & Foundation 