About Andrew Siff
Andrew Siff is an executive officer and director at Furnace Systems.
Experience
This experience comes from Andrew Siff's profile and from SEC filings. For roles taken from filings, the years are when the filings name Andrew Siff in the role, so the role may have started earlier or lasted longer.
Furnace Systems Corp Current
Co-Founder and COO (2026 – Present)
Director
2026 – Present · New York, NY
Provides prediction-market reference data for institutional trading and risk systems.
GF
Give Freely
Director of Product
2023 – 2026
TR
Triple
Chief of Staff
2023
PS
Playbook Sports
Chief Of Staff
2021 – 2023
NL
Next Door Tutors LLC
Co-Founder, CMO
2019 – 2021
NC
Nelson Fitness Center
Personal Trainer
2018 – 2021
Key Colleagues at Startups
The people Andrew 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
MS
Matthew Siff
Chief Executive Officer and director