Span.IO, Inc. develops and supplies renewable energy products for homes. It offers smart electrical panels that replace the electrical panel to become the center for connected power in the homes. The company also provides The Span, an application that enables users to understand and control their home energy from anywhere and at any time; and is used for scheduling and get alerts. It serves homeowners through installers, technology providers, and energy companies. Span.IO, Inc. was founded in 2018 and is headquartered in San Francisco, California.