• ARC Clean Energy

  Participated · Equity · Dec 2025

  ARC Clean Energy (also referred to as ARC Clean Technology) is a U.S.–based clean-energy firm with additional offices in Canada that is engineering the ARC-100, an advanced sodium-cooled fast reactor designed to generate 100 MWe of reliable, zero-emission electricity. The modular reactor targets applications ranging from electric grids to heavy industrial facilities and hyperscale AI data centers. ARC participates in the U.S. Department of Energy’s Advanced Reactor Demonstration Program, which aims to accelerate small modular reactor deployment, and it has a global distribution agreement with Korea Hydro & Nuclear Power (KHNP). Strategic engineering partner Hatch has worked with ARC since 2022 to advance Canadian project development. Proceeds from the company’s latest funding will support commercialization of the ARC-100, expansion into international markets, and continued collaboration with the DOE. No revenue or user metrics were disclosed, but the firm positions its technology as a cost-effective, scalable infrastructure solution for growing clean-energy demand.

• Proterra

  Participated · Series C · Oct 2013

  Proterra is a Burlingame, California–based company that develops and produces battery-electric, heavy-duty transit buses aimed at lowering operating costs and emissions for municipal, university, and commercial fleet operators. Its core offering is a line of zero-emission buses supported by in-house battery and charging technologies. To date, the company has sold more than 400 vehicles to 39 transit agencies across 20 states, demonstrating growing market traction. Proterra operates manufacturing facilities in South Carolina and Los Angeles, with research and development centered at its Silicon Valley headquarters. Recent capital infusions are being directed toward expanding production capacity at these plants and accelerating R&D initiatives. Led by CEO Ryan Popple, the firm continues to scale operations to meet increasing demand for clean public transportation solutions. The company most recently secured $55 million in Series 6 funding following an oversubscribed $140 million Series 5 round earlier in the year.

No current team members are available.