About David Brewster
David Brewster is CEO and director at Upstart Power Technologies.
David Brewster reports to the SEC as a director, officer or major shareholder of 2 public companies: GreenLight Biosciences Holdings, PBC (GRNA) and Enernoc (ENOC).
David Brewster first appears on SEC filings in 2007.
Experience
This experience comes from David Brewster's profile and from SEC filings. For roles taken from filings, the years are when the filings name David Brewster in the role, so the role may have started earlier or lasted longer.
Upstart Power Technologies, Inc. Current
Chief Executive Officer (2026 – Present)
Director
2026 – Present · Southborough, MA
Redde sells backup power fuel cells that recharge homeowners' batteries.
ST
SYSO Technologies Current
Board Member
2025 – Present
CI
Cortex Building Intelligence Current
Executive Chair
2022 – Present
LE
Leap Current
Advisor
2021 – Present
VE
Vicinity Energy Current
Board Member
2020 – Present
LI
LineVision Current
Advisor
2019 – Present
AP
Antin Infrastructure Partners
Advisor
2021 – 2026
PE
PearlX
Board Member
2023 – 2025
WI
World Resources Institute
Advisor
2013 – 2025
EC
Environmental Impact Acquisition Corporation
Chair of the Board of Directors
2020 – 2022
GP
GreenLight Biosciences Holdings, PBC
Director
2021 · Public company (GRNA)
MG
Mantis Innovation Group
Board Member
2018 – 2021
DE
Desalitech
Board Member
2017 – 2019
EI
Enernoc Inc.
Co-founder and President (2001 – 2017)
Director
2001 – 2017 · Public company (ENOC)
EN
EnergyHub
Board Member
2010 – 2013
SI
SolarBank Initiative
Summer Associate
1999
WC
Winslow Management Company
Investment Analyst
1998 – 1999
NR
NYC Department of Parks & Recreation
Environmental Educator
1995 – 1998
TS
Teton Science Schools
Summer Associate
1995
Key Colleagues at Startups
The people David Brewster works with at each company, as listed on that company's latest Form D.
Upstart Power Technologies, Inc. · Form D, Jun 23, 2026