About Temple Fennell
Temple Fennell is a director at MacroCycle Technologies.
Form D filings also name Temple Fennell as a director at Aqua Membranes and Rebound Technologies.
Temple Fennell first appears on SEC filings in 2019.
Experience
This experience comes from Temple Fennell's profile and from SEC filings. For roles taken from filings, the years are when the filings name Temple Fennell in the role, so the role may have started earlier or lasted longer.
MacroCycle Technologies Inc. Current
Member Board of Directors
2025 – Present · Cambridge, MA
Produces recycled polyester resin for textile and packaging manufacturers.
Aqua Membranes, Inc. Current
Chair of the Board of Directors
2020 – Present · Albuquerque, NM
Makes membrane elements for industrial water treatment systems.
SI
SunDensity Inc. Current
Chair of the Board of Directors
2020 – Present
Rebound Technologies, Inc. Current
Chair of the Board of Directors
2019 – Present · Denver, CO
Cooling and energy storage systems for industrial facilities and data centers.
CV
Clean Energy Ventures Current
Co-Founder and Managing Partner at Clean Energy Ventures
2017 – Present
CW
Center for Sustainable Finance and Private Wealth Current
Senior Fellow
2017 – Present
CG
Clean Energy Venture Group Current
Member
2016 – Present
HS
Harvard Kennedy School Current
Co-Director, Impact Investing Strategy for the Next Generation
2014 – Present
KL
Keller Enterprises, LLC Current
Family Member
2003 – Present
FV
Flagship Ventures
Private Markets Consultant
2015 – 2016
AL
ATO Pictures (Art Takes Over), LLC
Co-Founder and CEO
2002 – 2013
1F
12th Floor Film Fund
Managing General Partner
2006 – 2010
BL
BoxerJam Media, LLC
Co-Founder and President
1993 – 2002
BI
Boxer Learning, Inc
Co-Founder
1995 – 1999
Key Colleagues at Startups
The people Temple Fennell works with at each company, as listed on that company's latest Form D.
Aqua Membranes, Inc. · Form D, Jun 5, 2026

Craig Beckman
CEO and director

Rodney Herrington
Founder and director
SK
Steve Kloos
Director
MR
Michael Reardon
Director
MacroCycle Technologies Inc. · Form D, Mar 3, 2026

Catia Cesari
Director
SF
Stwart Pena Feliz
CEO and director

Kristin Taylor
Director

Jan-Georg Rosenboom
Co-founder, CTO and director
Rebound Technologies, Inc. · Form D/A, Aug 8, 2022
MC
Matt Coleman
Director
JF
John Fox
Chief Executive Officer and director
RG
Russell Goldfarbmuren
Founder and CTO, director