Ethan Kurzweil
InvestorManaging Partner at Chemistry · Partner at Bessemer Venture Partners · Board director at PagerDuty
San Francisco, California
Writes $3M – $25M checks · typically $10M
About
Ethan Kurzweil, co‑founder and managing partner, makes 5–10 concentrated, pure early‑stage bets annually on non‑consensus founders and monopolistic AI/developer plays, evidenced by early investments in Twilio, PagerDuty, Intercom, and LaunchDarkly.
Likely email· guessed from name + firm domain, not firm-published
- e•••@chemistry.vcreveal75% confident
Invests in
AI & Machine LearningConsumerData & InfrastructureDeveloper ToolsEnterprise SoftwareFintechGamingHealthtechSaaS
Beyond investing
- Founded
- Ethan Kurzweil founded Chemistry VC, an early-stage venture firm focused on Series A investments.
From published sources — common ground for a warm intro.
Board director at PagerDutyYC S10
Intro paths
Ethan went through Y Combinator (Summer 2010) — any YC alum in your network can reach them through the YC community.
In turn, Ethan can intro founders to PagerDuty's investors below.
PagerDuty's investors · 21
Co-founders at PagerDuty
Experience
- ChemistryFounder & Managing Partnercurrent2024 — presentSan Francisco, California, United States
- LaunchDarklyBoard Member2019 — 2025
- IntercomBoard Member2014 — 2025
- Bessemer Venture PartnersPartner2008 — 2024San Francisco Bay Area
- Basis TheoryBoard Member2021 — 2024
- TRM LabsBoard Member2021 — 2024
- BlitzInvestor and Board Member2019 — 2024
- ManyChatBoard Member2018 — 2024
- TSMBoard Member2018 — 2024
- HashiCorpInvestor2018 — 2021
- PagerDutyBoard Member2014 — 2020
- npm, Inc.Board Member2015 — 2020
- Life360Investor2011 — 2019
- SendGridInvestor and Board Observer2012 — 2017
- New LeadersAdvisory Board Member, Bay Area2009 — 2016
- Twilio Inc.Investor and Board Observer2010 — 2016
- TwitchBoard Member2012 — 2014
- Skybox ImagingInvestor and Board Observer2010 — 2014
- Linden LabCEO's Office and Marketing/Community2007 — 2008
- Dow Jones & Co.Senior Manager, Office of the CEO2004 — 2006
- New York City Department of EducationAssociate, Chancellor's Strategic Initiatives Group2002 — 2004
- McKinsey & Co.Business Analyst2001 — 2003
- Level AccessFounder and Director of Business Development1999 — 2001San Francisco, California, United States
Skills & more
+1 more
E-commerceFrom Ethan's professional profile.
Deals · 1
View The SpaceBoard seat
via Bessemer Venture Partners · filed Jan 2017
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Sources: curated public sources · SEC Form D filings.
Colleagues at Chemistry
Network8
Investors connected to Ethan in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Ethan Kurzweil?
- Ethan Kurzweil, co‑founder and managing partner, makes 5–10 concentrated, pure early‑stage bets annually on non‑consensus founders and monopolistic AI/developer plays, evidenced by early investments in Twilio, PagerDuty, Intercom, and LaunchDarkly.
- Where does Ethan Kurzweil work?
- Ethan Kurzweil is Managing Partner at Chemistry and Board director at PagerDuty.
- What does Ethan Kurzweil invest in?
- Ethan Kurzweil invests in AI & Machine Learning, Consumer, Data & Infrastructure, Developer Tools, Enterprise Software, Fintech, Gaming, Healthtech, SaaS.
- What check size does Ethan Kurzweil write?
- Ethan Kurzweil typically writes checks of $3M – $25M.
- What boards does Ethan Kurzweil sit on?
- Ethan Kurzweil holds tracked board seats at View The Space.
- What companies has Ethan Kurzweil invested in?
- Investments tracked here include Intercom, PagerDuty, SendGrid.
- Where did Ethan Kurzweil go to school?
- Ethan Kurzweil studied at Stanford University (A.B., Economics); Harvard Business School (MBA, Business).
- Does Ethan Kurzweil lead rounds?
- Yes — Ethan Kurzweil has led 3 tracked investments.
Founder mafias
Stanford University mafia903
Also came through, then founded or led a company.
+ 896 more
Harvard Business School mafia323
Also came through, then founded or led a company.
+ 316 more
Bessemer Venture Partners mafia17
Also came through, then founded or led a company.
+ 10 more
Twitch mafia17
Also came through, then founded or led a company.
+ 10 more
LaunchDarkly mafia7
Also came through, then founded or led a company.
Same school
Also attended Stanford University2,000
+ 1,994 more
Also attended Harvard Business School2,000
+ 1,994 more
Shared employers
Also worked at Bessemer Venture Partners152
+ 146 more
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