Yard Stick PBC develops an in-situ soil carbon measurement technology using a handheld probe with resistance sensors and cameras attached to a drill for instant, on-site soil organic carbon assessment. The system employs spatial analysis to select optimal field locations and feeds results into a monitoring platform that enables farmers to manage soil carbon without lab samples. It targets farmers and ranchers pursuing climate-positive agriculture and soil carbon credit marketplaces. Chris Tolles serves as CEO and co-founder, with prior experience founding Sundaily, while Kevin Meissner is CTO and co-founder, previously at SpaceX, Planet, Capella Space, and Charm. The company raised a $10.6 million Series A and secured $225 million in USDA grants with partners for climate-smart agriculture. Yard Stick is headquartered in Emeryville, CA.