What does Mainspring do?
Mainspring designs and manufactures linear generator products that offer cost efficiency, reliability, and flexibility, with scalable power solutions ranging from 250 kW to over 100 MW for a variety of applications.
How much did they raise?
The company raised $258M in a Series F round led by General Catalyst, with participation from Amazon’s Climate Pledge Fund, DCVC, Temasek, Marunouchi Innovation Partners, M&G Investments, Pictet Group, Lightrock, LGT Bank, Khosla Ventures, and Gates Frontier.
What are their plans for the money?
Mainspring plans to use the funds to expand its linear generator power business and operations, enhancing manufacturing capabilities and accelerating customer sales to meet growing power demands.
What have they achieved so far?
The company has already made strides with its scalable Linear Generator solution and bolstered its leadership by adding two board members, Tom Linebarger and Bethany Mayer.
