John Melas-KyriaziSan Francisco, California, United States
I’m the co-founder and CEO of Quaestor, a financial collaboration platform for startups and venture capital firms. I’m also an active angel investor and advisor. My path to becoming a startup founder took a number of twists and turns. After dropping out of an engineering PhD at Stanford, I jumped in to help build StartX at its earliest stages before joining Spark Capital as a VC. Over the course of five years with Spark, I invested in 10 Seed/Series A-stage companies, sometimes as a lead and other times in a supporting capacity, including Andela, Wildtype, Capella Space, SoundHouse, and Full Harvest. In early 2020, I decided to take the entrepreneurial plunge, and my co-founders and I launched Quaestor to improve financial collaboration in the innovation economy.
Co-Founder & CEO
2020 - Current
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Angel Investor & Advisor
MK Investments
2019 - Current
Investments: - Flexport ( - Route ( - Shield AI ( - Eco ( - Clipboard Health ( - MainStreet ( - nTopology ( - AtoB ( - Nuvocargo ( - Seso ( - Mundi ( - withco ( - Hone ( - Onebrief ( - Archie ( - Velocity ( - Clora ( - Auxilus ( - Poised ( - Legalpad ( - Ello ( - Climax Foods ( - Mezcal Rosaluna ( - Sagra ( - Prima ( Advisory roles: - 8VC ( - Sagra (
Seed Investor & Former Board Member
Wild Type
2018 - Current
Delicious cell-cultivated salmon, no fishing or fish farming required.
Series A Investor & Former Board Observer
Capella Space
2017 - Current
Earth observation data any time, any weather with the most advanced Synthetic Aperture Radar satellite technology.
Series A Investor & Former Board Observer
2015 - Current
Global talent marketplace connecting leading organizations with highly skilled technologists.
Spark Capital
2014 - 2019
Investments: - Andela (sourced, board observer) - Wildtype (led, board member) - Capella Space (sourced, board observer) - SoundHouse (co-founded/incubated) - Full Harvest (led, board member) - Allstripes (sourced) - Clora (led, board member) - Freight Farms (sourced, board observer) - Sidewire (sourced, board observer) - TBA (led)
CFO & Head of Business Development
2012 - 2014
StartX is a community of entrepreneurs affiliated with Stanford University.
Applied Physics Researcher
Stanford University
2009 - 2012
My research at Stanford focused on the materials science and device physics of solar cells and photo-electrochemical devices. Publications:
Stanford University
Ph.D. (dropout), Materials Science & Engineering
Stanford University
M.S., Materials Science & Engineering
Stanford University
B.S. with Honors, Engineering Physics
The Roxbury Latin School
High School
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InfoThis public profile is provided courtesy of Clay. All information found here is in the public domain.