David Brewster, Angel Investor

David Brewster is a climate tech entrepreneur and investor with 25 years of experience building mission‑driven companies in the energy sector. He co‑founded and scaled EnerNOC into a global energy technology leader, growing it to $500M in revenue, taking it public on Nasdaq in 2007, and later selling it to Enel Group in 2017. He currently serves as Board Member at Vicinity Energy, Cortex Building Intelligence, and PearlX Infrastructure, and as Advisor to LineVision, Antin Infrastructure Partners, Leap, and the World Resources Institute. He is also a Trustee at Milton Academy, reflecting his commitment to both innovation and community impact. As an investor, David has backed ReferralMob and LineVision, including its $2M Series A round. His portfolio underscores a focus on ventures that advance clean energy, grid resilience, and decarbonization.