Ethan Kurzweil
Partner @ Bessemer Venture Partners
San Francisco, United States
Ethan Kurzweil is a Series A investor at Bessemer Venture Partners in San Francisco focused on Software and Big Data. Ethan Kurzweil is the Founder & Managing Partner at Chemistry VC. He previously worked as a partner in the Menlo Park, Calif. office, joined Bessemer in 2008 where he focuses on investments in consumer technologies and cloud computing - and leads Bessemer's roadmap on developer platforms.Ethan’s portfolio includes consumer companiesincluding Twitch, Life360 and Piazza; developer platforms including Twilio and Sendgrid; and cloud computing pioneers including Intercom, Simply Measured and Hightower.He has also been actively involved with the firm’s investments in Playdom (sold to Disney), adap.tv (sold to AOL), Zoosk, Crowdflower, Reputation.com, Sweet Labs, Skybox Imaging, and Mojave Networks. He currently serves on the board of directors of Twitch, Simply Measured, Intercom, Crowdflower, Hightower, Piazza and Sweet Labs.Ethan joined BVP from Linden Lab, the creator of Second Life. Previously, he held a series of positions at Dow Jones & Co., including leading new business development efforts and managing the turnaround of The Wall Street Journal international editions. While an undergraduate at Stanford, Ethan co-founded SSB-Bart Group, a provider of software and services that make the Web accessible to users with disabilities, and served as head of business development.Ethan earned a BA from Stanford University – where he was elected to Phi Beta Kappa – and an MBA with distinction from Harvard Business School. He serves on the Bay Area advisory board for New Leaders, a national non-profit dedicated to ensuring high academic achievement for all students through recruiting and supporting great school leaders. And despite living in California, he is still a life-long Boston Red Sox fan. Follow Ethan on twitter at @ethankurz.
- Total investments:
- 46
- Last investment:
- Lead investor:
- 46%
Last updated:
For AI agents: llms.txt
Industries Ethan Kurzweil invests in
Stages Ethan Kurzweil invests in
Countries Ethan Kurzweil invests in
Contacts
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Investment Focus
Industry
- Software 13 (28%)
- Big Data 6 (13%)
- SaaS 4 (9%)
- Artificial Intelligence 4 (9%)
- Video 3 (7%)
Stage
- Series A 14 (30%)
- Series B 12 (26%)
- Series C 8 (17%)
- Series D 4 (9%)
- Seed 2 (4%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Meticulous is a tool for detecting bugs in web applications. The company was founded in 2021. | $15M / Series A / Jul 15, 2026 | ||
| Fathom Therapeutics, previously known as Atommap, is a biotechnology company focused on designing therapeutic molecules through computational drug discovery approaches. The company develops models that simulate biomolecular and protein motion to better understand how proteins behave and interact, enabling the identification of new therapeuticstrategies. Its platform combines generative design, predictive modeling, and computational assays to create and evaluate molecular candidates for their binding affinity and functional effects. By leveraging these simulations, it supports drug discovery processes such as hit identification, lead optimization, and the design of targeted molecules, including degraders and molecular glues. The company also collaborates with partners by providing molecular designs, predictive insights, and co-development opportunities for advancing therapeutic candidates. | $47M / Series A / Apr 27, 2026 | ||
| TRM Labs is a blockchain intelligence company that helps financial institutions, crypto businesses, and government agencies detect and investigate crypto-related financial crime and fraud. Our products are trusted by leading companies including PayPal, Visa, FTX, Uniswap, Anchorage, and federal agencies such as the FBI and IRS. Every day, we tacklechallenges in data engineering, data science, and threat intelligence to advance our mission to build a safer financial system for billions of people. To accomplish our mission, we have raised over $79M from JPMorgan Chase, Visa, Citi, PayPal, Block, Tiger Global, and Bessemer. Our team is made up of world class experts from the FBI, U.S. Secret Service, US Treasury Department, McKinsey, Coinbase, and top-tier tech companies. TRM is a remote-first workplace, with hubs in San Francisco, Washington, DC, and London. | $70M / Series B / Nov 09, 2022 | ||
| Founded and run by Marcus Segal and Michael Pagano Doom, the company is creating category defining games with social play that offer entertainment for people of all ages. Launched in 2020 during one of the strangest times in human history, ForeVR understands that VR’s time is now. The accessibility of VR technology, the need for socially distantentertainment options and nostalgia for popular in person games set the stage for success. As well as the fact that 42.9 million people in the US will use VR at least once a month this year and gaming and entertainment media hold 40.5% of the VR market share (Statista).The ForeVR team includes gaming veterans, imagineers, and a death metal guitarist. This collective are also early pioneers of social gaming, VR-AR immersives and AAA branded toys. Together they have one goal --Translate the most popular and classic IRL games into immersive virtual reality experiences where friends and families of all ages can connect and have fun. | $10M / Series A / Oct 27, 2022 | ||
| TRM Labs is a blockchain intelligence company that helps financial institutions, crypto businesses, and government agencies detect and investigate crypto-related financial crime and fraud. Our products are trusted by leading companies including PayPal, Visa, FTX, Uniswap, Anchorage, and federal agencies such as the FBI and IRS. Every day, we tacklechallenges in data engineering, data science, and threat intelligence to advance our mission to build a safer financial system for billions of people. To accomplish our mission, we have raised over $79M from JPMorgan Chase, Visa, Citi, PayPal, Block, Tiger Global, and Bessemer. Our team is made up of world class experts from the FBI, U.S. Secret Service, US Treasury Department, McKinsey, Coinbase, and top-tier tech companies. TRM is a remote-first workplace, with hubs in San Francisco, Washington, DC, and London. | $60M / Series B / Dec 07, 2021 | ||
| Founded and run by Marcus Segal and Michael Pagano Doom, the company is creating category defining games with social play that offer entertainment for people of all ages. Launched in 2020 during one of the strangest times in human history, ForeVR understands that VR’s time is now. The accessibility of VR technology, the need for socially distantentertainment options and nostalgia for popular in person games set the stage for success. As well as the fact that 42.9 million people in the US will use VR at least once a month this year and gaming and entertainment media hold 40.5% of the VR market share (Statista).The ForeVR team includes gaming veterans, imagineers, and a death metal guitarist. This collective are also early pioneers of social gaming, VR-AR immersives and AAA branded toys. Together they have one goal --Translate the most popular and classic IRL games into immersive virtual reality experiences where friends and families of all ages can connect and have fun. | $7M / Seed / Aug 17, 2021 | ||
| LaunchDarkly isn’t just a leader in feature management — it’s the first scalable feature management platform. Feature management allows development teams to innovate faster by fundamentally transforming how software is delivered to customers. With the ability to gradually release new software features to any segment of users on any platform, DevOpsteams can standardize safe releases at scale, accelerate their journey to the cloud and collaborate more effectively with business teams. Today, LaunchDarkly deploys peaks of 20 trillion feature flags each day, and that number continues to grow. Founded in 2014 in Oakland, California by Edith Harbaugh and John Kodumal, LaunchDarkly has been named on the Forbes Cloud 100 list, InfoWorld’s 2021 Technology of the Year list, and the Enterprise Tech 30 list. | $200M / Series D / Aug 10, 2021 | ||
| TRM Labs is a blockchain intelligence company that helps financial institutions, crypto businesses, and government agencies detect and investigate crypto-related financial crime and fraud. Our products are trusted by leading companies including PayPal, Visa, FTX, Uniswap, Anchorage, and federal agencies such as the FBI and IRS. Every day, we tacklechallenges in data engineering, data science, and threat intelligence to advance our mission to build a safer financial system for billions of people. To accomplish our mission, we have raised over $79M from JPMorgan Chase, Visa, Citi, PayPal, Block, Tiger Global, and Bessemer. Our team is made up of world class experts from the FBI, U.S. Secret Service, US Treasury Department, McKinsey, Coinbase, and top-tier tech companies. TRM is a remote-first workplace, with hubs in San Francisco, Washington, DC, and London. | $14M / Series A / Jun 17, 2021 | ||
| Prefect is a data workflow orchestration platform powered by the open-source Prefect engine. The company was founded in 2018 by Jeremiah Lowin with hubs in Washington, DC, Chicago, and SF Bay. | $32M / Series B / Jun 10, 2021 | ||
| Coiled is a modern solution for seamlessly scaling data science, machine learning, and AI in Python. | $21M / Series A / May 18, 2021 | ||
| See all 46 investments → | |||
Co-Investors
Bessemer Venture Partners is a venture capital firm that invests in early-stage and growth-stage companies across technology, healthcare, and consumer sectors. It provides capital to startups and emerging businesses while supporting founders with strategic guidance, operational insight, and network access. The firm participates in multiple fundingstages, from seed investments to later growth rounds, and works closely with portfolio companies on product development, market expansion, and organizational scaling. Its investment activities span software, cloud infrastructure, fintech, biotech, and internet-enabled businesses, aligning capital deployment with long-term company building.
Bessemer Venture Partners Contacts
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Aia Sarycheva
Investor
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Alexandra Sukin
Investor
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Anant Vidur Puri
Partner
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Andrew Hedin
Partner
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Caty Rae
Investor
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FAQ
What does Ethan Kurzweil invest in?
Ethan Kurzweil invests primarily in Software, Big Data and SaaS startups, most often at Series A and Series B stage. Most of the 46 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Ethan Kurzweil?
Public channels for Ethan Kurzweil include LinkedIn, X (Twitter) and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Ethan Kurzweil last invest?
The most recent investment recorded for Ethan Kurzweil closed in Jul 2026. Shizune tracks 46 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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