Investing Profile

Brian Halligan

InvestorVCFounder
Venture Partner at Longworth Ventures
propellervc.comCambridge, Massachusetts
Photo of Brian Halligan, Venture Partner at Longworth Ventures

Signal uses Gmail to reveal intro paths. Email content is never read.

Sign in with Google →
MIT Sloan School of Management Network
240 CONNECTIONS
Sequoia Capital Network
224 CONNECTIONS
Massachusetts Institute of Technology Network
193 CONNECTIONS
Massachusetts Institute of Technology Network
193 CONNECTIONS
University of Vermont Network
36 CONNECTIONS
cb
Longworth Ventures Venture Partner
$100K - $5.0M
$1.5M
16
CompanyStageDateRound SizeTotal Raised
Rogo
Series DApr 2026$160M
Series CJan 2026$75M
$310M
Co-investors: Keith Rabois (Khosla Ventures), Patrick Grady (Sequoia Capital), Ivan Bercovich (ScOp Venture Capital), Eric Schmidt (Innovation Endeavors), Jack Altman (Lattice Ventures), Mamoon Hamid (Kleiner Perkins), Henry Kravis
Serval
Series BDec 2025$75M
$120M
Co-investors: Alex Clayton (Spark Capital), Alex Bard (Redpoint Ventures), Patrick Chase (Redpoint Ventures), Marc Bhargava (General Catalyst), 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 (Coatue Management), Saurabh Gupta (DST Global), Kris Fredrickson (Verified Capital), Harj Taggar (Y Combinator)
Rillet
Series AMay 2025$25M
$210M
Co-investors: Alex Rampell (Andreessen Horowitz), Kevin Hartz (Founders Fund), Chad Byers (Susa Ventures), Roelof Botha (Sequoia Capital), Julien Bek (Sequoia Capital), Seema Amble (Andreessen Horowitz), Cristina Cordova (First Round Capital), Bill Trenchard (First Round Capital), Scott Belsky (A24), Peter Specht (Creandum), Seth Pierrepont (ICONIQ Capital), Bashar Hamood (FasterCapital), Hesham Zreik (FasterCapital), Zack Kanter (Stedi), Ron Gill (Lead Edge Capital), Gordon Wintrob
Agency AI
SeedOct 2024$12M
$35M
Co-investors: Patrick Grady (Sequoia Capital), Gaurav Jain (Afore Capital), Tim Tully (Menlo Ventures), Reshma Saujani (Moms First), Nat Friedman (Self-employed), Samara Hernandez (Chingona Ventures), Shruti Gandhi (Array Ventures), Sarah Guo (Conviction Partners)
Greenly
Series BMar 2024$53M
$56M
Co-investors: Alexandre Prot (Qonto)
Harvey
Series AApr 2023$21M
$1.2B
Co-investors: Patrick Grady (Sequoia Capital), Anas Biad (Sequoia Capital), Sangeen Zeb (GV (Google Ventures)), Ian Hathaway (OpenAI), Elad Gil (Think Colorado), Saurabh Gupta (DST Global), Kris Fredrickson (Verified Capital), Ilya Fushman (Kleiner Perkins)
BodesWell
Pre SeedJan 2021
$1M
Co-investors: Sravish Sridhar (Various Startups), Julia Hang (Vesey Ventures)
Sales VP PTCPresent
VP Sales Groove NetworksPresent
Sloan Fellow Massachusetts Institute of TechnologyPresent
Senior Lecturer Massachusetts Institute of TechnologyPresent
Member Board Of Directors FleetMaticsPresent
Senior Advisor Sequoia CapitalPresent
Venture Partner Longworth VenturesPresent
CEO HubSpotPresent
Co-Founder & Chairperson HubSpotPresent
Co-founder & Chairperson HubSpotPresent
Co-founder & Partner PROPELLERPresent
Co-Founder & Board Member HubSpotPresent
University of Vermont BS EE
MIT Sloan School of Management MBA Business Administration and Management, General
Sign in with Google →
Sign in with Google →