Investing Profile

Brian Halligan

InvestorVCFounder
Co-founder and Partner at Propeller VC
propellervc.comCambridge, Massachusetts
Photo of Brian Halligan, Partner at Propeller VC

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Propeller VC Partner
$100K - $5.0M
$1.5M
16
CompanyStageDateRound SizeTotal Raised
Rogo
Series DApr 2026$160M
Series CJan 2026$75M
$310M
Co-investors: Patrick Grady (Sequoia Capital), Keith Rabois (Khosla Ventures), Jack Altman (Benchmark), Ivan Bercovich (ScOp Venture Capital), Eric Schmidt (Innovation Endeavors), Mamoon Hamid (Kleiner Perkins), Henry Kravis
Serval
Series BDec 2025$75M
$120M
Co-investors: Alex Clayton (Meritech Capital Partners), Marc Bhargava (General Catalyst), Alex Bard (Redpoint Ventures), Patrick Chase (Redpoint Ventures), Nmachi Jidenma (General Catalyst), Anas Biad (Sequoia Capital), Bill Trenchard (First Round Capital)
Juicebox
Series ASep 2025$30M
$110M
Co-investors: Lauren Reeder (Sequoia Capital), David Cahn (Sequoia Capital), Saurabh Gupta (DST Global), Kris Fredrickson (Verified Capital), Harj Taggar (Y Combinator)
Rillet
Series AMay 2025$25M
$110M
Co-investors: Chad Byers (Susa Ventures), Roelof Botha (Sequoia Capital), Julien Bek (Sequoia Capital), Seema Amble (Andreessen Horowitz), Alex Rampell (Andreessen Horowitz), Cristina Cordova (First Round Capital), Bill Trenchard (First Round Capital), Ron Gill (Lead Edge Capital), Bashar Hamood (FasterCapital), Hesham Zreik (FasterCapital), Kevin Hartz (A* Capital (A Star Capital)), Peter Specht (Creandum), Scott Belsky (A24), Seth Pierrepont (ICONIQ Capital), Zack Kanter, Gordon Wintrob
Agency AI
SeedOct 2024$12M
$35M
Co-investors: Patrick Grady (Sequoia Capital), Tim Tully (Menlo Ventures), Gaurav Jain (Afore Capital), Nat Friedman (C2 Investment), Samara Hernandez (Chingona Ventures), Shruti Gandhi (Array Ventures), Sarah Guo (Conviction Partners), Reshma Saujani
Greenly
Series BMar 2024$53M
$56M
Co-investors: Alexandre Prot
Harvey
Series AApr 2023$21M
$1.2B
Co-investors: Anas Biad (Sequoia Capital), Sangeen Zeb (GV (Google Ventures)), Patrick Grady (Sequoia Capital), Ian Hathaway (Open AI Startup Fund), Elad Gil (Think Colorado), Saurabh Gupta (DST Global), Kris Fredrickson (Verified Capital), Ilya Fushman (Kleiner Perkins)
BodesWell
Pre SeedJan 2021
$1M
Co-investors: Julia Hang (Company Capital), Sravish Sridhar