Proterra

Proterra has raised $858 million across multiple rounds, including $200 million in Series H (2020) and $155 million in Series G (2018), strengthening its position in the EV battery systems market. Earlier funding rounds contributed hundreds of millions toward scaling production, engineering expertise, and OEM integration capabilities. The company, founded in 2004, later secured additional capital through conventional debt in 2020 backed by government support. With investors such as GM Ventures, Kleiner Perkins, Cowen, Mercedes-Benz, and G2VP, Proterra reached unicorn status and expanded into heavy-duty commercial electrification.