GrazeMate builds autonomous AI-powered drones that herd cattle, finding herds and guiding them to pasture while reading animal behavior like experienced stockmen. Beyond herding, the drones estimate animal weights, measure grass biomass, monitor water levels, and identify sick animals. The platform lets ranchers manage thousands of cattle across millions of acres from their phone, replacing costly traditional methods involving helicopters, motorbikes, and horses. GrazeMate was founded in 2025 and is part of Y Combinator's Winter 2026 batch.