FirstMark Capital R1, L.P.
Follow-ons only
Follow-ons only: no first sale reported; age from Form D filed Mar 2021 (approximate)
No contact route found yet.
- Vintage
- Unknown
- Fund size
- $100M (Form D)
- Stages
- Not stated
- Sectors
- Not stated
- Regions
- NY
01 · Thesis
No thesis found on the firm's website yet.
02 · Initial check
$1M to $1.67M (estimated from fund size)
Estimated from Form D
03 · Who to approach
Named on this fund's Form D
- Amish Jani, Manager of the General Partner
- Rick Heitzmann, Founder & Partner
04 · Deals
No deals attributed to this fund yet.
05 · Evidence
Firm-wideFirstMark is an early-stage venture capital firm based in New York City that backs founders building companies.
FirstMark is an early-stage venture capital firm in New York City.
https://firstmark.com/
06 · Sources
Last verified: Oct 28, 2026