OpenSolar is a San Francisco-based software platform that supports more than 25,000 solar installer businesses across over 160 countries. The company offers a free-to-use solar operating system that enables installers to create highly accurate system designs using Google’s Solar API data. Beyond system design, the platform includes sales-proposal generation, project management, payment processing, finance solutions, hardware ordering, and inventory management tools. OpenSolar’s business model centers on delivering these end-to-end capabilities at no cost to installers, encouraging wider adoption of solar technology. The company plans to deploy artificial-intelligence enhancements to further automate and optimize system design and project workflows. With its global reach and robust feature set, OpenSolar positions itself as a key enabler in the accelerating renewable-energy transition.

Total raised

$35M

Funding rounds

2

Latest round

Equity

Latest activity

Oct 2025