Series F Round

Mainspring Energy is a startup focused on innovative energy solutions, specifically through its advanced Linear Generator technology that provides reliable and clean power at any scale, enabling a local power solution for the net-zero carbon grid. The company aims to revolutionize energy generation by offering a flexible and efficient alternative to traditional power sources, making it suitable for various applications including data centers and industrial uses. The recent funding will be utilized to scale operations and enhance the development of their technology, further positioning Mainspring as a leader in the clean energy sector. The Series F funding round was led by General Catalyst, with participation from other prominent investors, including Khosla Ventures and several strategic energy partners. Notably, Tom Linebarger, a senior advisor at General Catalyst, will join the Mainspring board as part of this funding round. This funding round is expected to accelerate Mainspring's growth trajectory and expand its market reach, particularly in the rapidly evolving clean energy landscape.