About Matthew Siff
Matthew Siff is a chief executive officer and director at Furnace Systems.
Experience
This experience comes from Matthew Siff's profile and from SEC filings. For roles taken from filings, the years are when the filings name Matthew Siff in the role, so the role may have started earlier or lasted longer.
Furnace Systems Corp Current
Co-Founder and CEO (2026 – Present)
Director
2026 – Present · New York, NY
Provides prediction-market reference data for institutional trading and risk systems.
OM
Old Mission
Quant Trader
2021 – 2026
NL
Next Door Tutors LLC
Co-Founder, CEO
2019 – 2021
BL
Bloomberg LP
Market Data Analyst
2020
TC
Thrive Capital
Investment Intern
2018
Key Colleagues at Startups
The people Matthew Siff works with at each company, as listed on that company's latest Form D.
Furnace Systems Corp · Form D, Aug 6, 2026
GR
Gabriel Rizk
Executive officer
AS
Andrew Siff
Executive officer and director