Just months after closing a $30M Series B, Keychain secures another $10M from a consortium of the world’s largest grocery retailers. Why are Tesco, Ahold Delhaize, and Woolworths betting on a platform that’s already connecting 20,000 brands with manufacturers? The answer reveals how retail’s private label boom is creating unprecedented demand for supply chain technology—and why legacy systems can’t keep up with retailers treating private label as their core growth engine.