FlexGen
Software DevelopmentNorth Carolina, United States201-500 Employees
FlexGen is a software development company focused on integrated energy storage systems, headquartered in Durham, North Carolina, with 201-500 employees. It uses a software-first approach to energy storage, delivering advanced functionality through its HybridOS energy management system and by integrating with hardware across multiple storage platforms. The company offers hardware-agnostic solutions and can either let customers procure their own hardware or provide hardware as part of a complete system solution. FlexGen has pursued strategic partnerships and acquisitions to expand its market reach, including a 2026 partnership with AccessIntel and acquisitions of Clean Energy Services and Powin assets. The company maintains a technology stack that includes Grafana, Matplotlib, Weights & Biases, Google Sheets, Bash, Rust, VBA, and Bootstrap, and its website is flexgen.com.