In addition to testing its delivery robots in such cosmopolitan European capitals as London and Tallinn, Estonia, Starship Technologies has pilot projects in the heart of Silicon Valley in Redwood City, San Carlos and Sunnyvale.

The agreement with Concord marks its first foray into Contra Costa County. Up to a dozen robots will operate in a four-mile area in Concord. Starship Technologies currently works with meal-delivery services DoorDash and Postmates. A thermal liner will keep food hot.