Investing Profile

Robert Nelsen

VCInvestorAngel
Co-founder and a Managing Director of ARCH Venture Partners
archventure.com/team/robert-t...New York, New York
Photo of Robert Nelsen, Managing Director at ARCH Venture Partners
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Current Investing Position
ARCH Venture Partners Managing Director
Investment Range
$50K - $150.0M
Sweet Spot
$75.0M
Investments On Record
95
Current Fund Size
$635.8M

Robert Nelsen is on these Sector & Stage Rankings

Robert Nelsen's Investments On Record (53)

CompanyStageDateRound SizeTotal Raised
SciNeuro
Series UnknownDec 2025$53M
Series ADec 2020$100M
$150M
Paradigm
Series BDec 2025$78M
Series AJan 2023$200M
$290M
Co-investors: David Schenkein (GV (Google Ventures)), Hemant Taneja (General Catalyst), Niko Bonatsos (General Catalyst), Bilal Zuberi (Lux Capital), Alaa Halawa (Mubadala), Justin Kao (DFJ Growth), Jared Friedman (Israel Defense Forces), Scott Belsky (A24), Eoghan McCabe, Balaji Srinivasan, Karim Atiyeh
Synchron
Series DNov 2025$200M
Series CDec 2022$75M
$280M
Co-investors: Alex Morgan (Khosla Ventures)
Dispatch Bio
Series AJul 2025$220M
$220M
Be Biopharma
Series CJan 2025$92M
Series UnknownOct 2024$82M
Series BApr 2022$130M
$360M
Co-investors: Jason Rhodes (Atlas Venture)
City Therapeutics
Series AOct 2024$140M
$140M
Stability AI
Series UnknownJun 2024$80M
$210M
£89M
Co-investors: Gaurav Gupta (Lightspeed Venture Partners), Colin Bryant (New Enterprise Associates (NEA)), Chris Denny-Brown (O'Shaughnessy Ventures), Ashton Kutcher (Sound Ventures), Eric Schmidt (Innovation Endeavors), Dana Settle (Greycroft Partners), Walter Kortschak (Kortschak Investments), Effie Epstein (Sound Ventures), Guy Oseary (Sound Ventures)
Vilya
Series AJun 2024$21M
Series AAug 2022$50M
$71M
Co-investors: Greg Yap (Menlo Ventures)