ColdHubs is one of the most beautiful Nigerian business stories out there, because it solves a painfully simple problem: good food rotting in the sun before anyone can sell it. — Founded by Nnaemeka Ikegwuonu who was an agricultural radio host travelling to meet farmers. In 2013 at Farin Gada Market, he saw mountains of cabbages turning to trash, and the farmers there pleaded for storage so they could sell later. He launched ColdHubs in 2015, based in Owerri. — These are walk-in cold rooms placed right inside markets and farm clusters. Rooftop solar panels of about 5.5kW power them off-grid, around the clock. — Farmers stack their produce in plastic crates inside, and the room holds a steady 5 °C, stretching shelf life from about 2 days to as long as 21. — The genius part is the pricing, a trader pays roughly 100 Naira per 20kg crate per day, so even a small tomato seller can afford it. — ColdHubs learned it worked better to own and maintain the rooms themselves, guaranteeing farmers reliable cooling, which is basically "cooling as a service." — It cuts spoilage by up to 80% and reportedly doubles vendor income, from about $60 to $120 a month — They recruit and train local women as hub operators and market promoters — It won the $2 million Food Planet Prize in 2022, the world's largest award in the food and environment space — The newer ColdHubs 2.0 swapped batteries for ice-based cooling, and their app Coldtivate helps with inventory and market price prediction — As of 2025, it ran over 50 hubs across more than 20 states, serving over 11,000 users.