People

President & CEO

President & CEO

Garry Tan is President and CEO of Y Combinator. He was a partner at Y Combinator from 2011 to 2015, where he built key parts of the YC experience for founders including Bookface and the Demo Day website. Garry is the co-founder of Initialized Capital and Posterous (YC S08), a blog platform acquired by Twitter, and prior to that, he was an early designer and engineering manager at Palantir (NYSE:PLTR), where he designed the company logo. Garry holds a BS in Computer Systems Engineering from Stanford.

Partners

Gustaf Alströmer

General Partner

Gustaf Alströmer is a General Partner at YC. He spent 4.5 years at Airbnb where he worked as a Product Lead on the Growth team, a team he helped start in 2012. Prior to Airbnb, Gustaf was Head of Growth at Voxer, and before that, he was CEO & co-founder of Heysan, which was part of the YC W07 batch.

Tom Blomfield

General Partner

Tom Blomfield is a General Partner at YC. He was co-founder of Monzo, one of the first app-based challenger banks in the UK. Monzo raised more than £500m, counts 10% of the UK population as customers, and was the #1 recommended brand in the UK for two years running. Previously, he founded GoCardless (YC S11), an online payments processor for the Direct Debit system. In 2019, he was awarded an OBE for increasing competition in the banking sector.

Tyler Bosmeny

General Partner

Tyler Bosmeny is a General Partner at YC. He was the co-founder and CEO of Clever (S12), which lets students and teachers access all of their learning software in one place. 60% of students in the US log into Clever regularly. In 2021, Clever was acquired for $500M. Tyler graduated from Harvard and has a BA in Applied Math and an MA in Statistics.

Paul Buchheit

Partner Emeritus

Paul Buchheit is a Partner Emeritus at YC and the creator of GMail. While at Google he also built the prototype for AdSense and came up with Google's famous slogan "Don't be evil." In 2007 he was one of the founders of Friendfeed, which in 2009 became Facebook's largest acquisition to date. He has a BS and MS in Computer Science from Case Western Reserve University.

Dalton Caldwell

Managing Partner

Dalton Caldwell is a Managing Partner at YC. He was the cofounder and CEO of imeem (acquired by MySpace in 2009), and the cofounder and CEO of App.net. He has a BS in Symbolic Systems and a BA in Psychology from Stanford University.

Nicolas Dessaigne

General Partner

Nicolas Dessaigne is a General Partner at YC. He was the co-founder of Algolia (YC W14), a growth stage Search API used by millions of developers. He led the company as CEO up to 350 people before hiring a successor in 2020. He is still very involved in the success of Algolia as Board Director. He has a PhD in Computer Science from the University of Nantes.

Aaron Epstein

General Partner

Aaron Epstein is a General Partner at YC. He was co-founder of Creative Market (YC W10), a marketplace for graphic design assets, which he sold to Autodesk in 2014 and spun out as an independent startup again in 2017. Aaron founded the company to make beautiful design simple and accessible to everyone, and has since helped generate more than $100M in sales for independent creators around the world. He has a BS in Business from the University of Maryland.

General Partner

Brad Flora is a General Partner at YC. He was co-founder and CEO of Perfect Audience, an ad network funded by Y Combinator in 2011, acquired by Marin Software in 2014 and used by companies like Eventbrite, Atlassian, and New Relic to market to more than a billion people. He is an active angel investor, occasional contributor for Slate.com and lives in San Francisco with his wife and three children. He has a BA from Princeton University in English and an MS in Journalism from Northwestern.

Jared Friedman

Managing Partner

Jared Friedman is a Managing Partner at YC. He was cofounder of Scribd, which was funded by Y Combinator in 2006 and grew to be one of the top 100 sites on the web. Jared previously worked at a pioneering AI company and studied computer science at Harvard.

General Partner

Diana Hu is a General Partner at YC. She was co-founder and CTO of Escher Reality (YC S17), an Augmented Reality Backend company that was acquired by Niantic (makers of Pokémon Go). At Niantic, she was the head of the AR platform. Previously, she led data science at OnCue TV that was sold to Verizon. Originally from Chile, Diana graduated from Carnegie Mellon University with a BS and MS in Electrical and Computer Engineering with a focus in computer vision and machine learning.

Pete Koomen

General Partner

Pete Koomen is a General Partner at YC. He co-founded Optimizely (W10) which helps companies run experiments on their websites and apps. He helped Optimizely grow from inception, to $100M+ in ARR to, ultimately, its acquisition in 2020. Pete holds a Master's degree in Computer Science from the University of Illinois at Urbana Champaign.

General Partner

David Lieb is a General Partner at YC. He was previously the co-founder and CEO of Bump (S09), a mobile app used by more than 150M people to share photos and contact info by bumping their phones together. Bump was acquired by Google in 2013, and an unreleased photo-sharing app they were building became the foundation of Google Photos. Before Bump, Dave was a researcher in the Stanford AI Lab and a software engineer at Texas Instruments. He holds EE/CS degrees from Princeton and Stanford and finished half an MBA at Chicago Booth before dropping out to start Bump.

Andrew Miklas

General Partner

Andrew Miklas co-founded PagerDuty (YC S10, NYSE:PD), which became the backbone of digital operations for thousands of businesses. As founding CTO, he designed the original product and its high-availability architecture, and scaled the engineering team to 70+ people. After PagerDuty, he became an early-stage investor at s28 Capital, supporting companies like Clerk, CaptivateIQ, and Teleport. Andrew brings deep experience in building resilient systems and scaling engineering teams from zero to impact.

Michael Seibel

Partner Emeritus

Michael Seibel is a Partner Emeritus at YC. He was the cofounder and CEO of Justin.tv and Socialcam. Socialcam sold to Autodesk in 2012 and under the leadership of Emmett Shear, Justin.tv became Twitch.tv and sold to Amazon in 2014. Before getting into startups, he spent a year as the finance director for a US Senate campaign and in 2005, Michael graduated from Yale University with a BA in political science.

Harj Taggar

Managing Partner

Harj Taggar is a Managing Partner at YC. He was previously founder and CEO of Triplebyte (YC S15) and Auctomatic (YC W07), which was acquired by Live Current Media in 2008. He first joined YC as a partner in 2010, leaving in 2014 to start Triplebyte and rejoining in 2020. He graduated in 2006 from Oxford, where he studied Jurisprudence.

General Partner

Jon Xu is the co-founder and former CTO of FutureAdvisor (YC S10), one of the first robo-advisors to make quality investment management accessible to a broader consumer audience. After the company was acquired by BlackRock in 2015, Jon continued to lead product and engineering, building an enterprise-grade robo-advisor platform for large financial institutions. His background gives him unique expertise both in building high-trust consumer products and B2B platforms for regulated industries.

Founders

Trevor Blackwell
Founder, Retired
Trevor Blackwell is a roboticist who in 2007 built the first dynamically balancing biped robot. He has published papers on congestion control in high speed wide area networks, signalling protocol architecture, and file system performance. He has a BEng from Carleton, and a PhD in Computer Science from Harvard.
Paul Graham
Founder, Retired
Paul Graham is the author of On Lisp (1993), ANSI Common Lisp (1995), and Hackers & Painters (2004). In 1995, he and Robert Morris started Viaweb, the first SaaS company, which in 1998 became Yahoo Store. In 2002 he discovered a simple spam filtering algorithm that inspired the current generation of filters. He has an AB from Cornell and a PhD in Computer Science from Harvard.
Jessica Livingston
Founder, Retired
Jessica Livingston was previously VP of marketing at investment bank Adams Harkness, where she managed an award-winning rebranding of the company. She is the author of Founders at Work (2007), a book of interviews with startup founders. She has a BA in English from Bucknell.
Robert Morris
Founder, Retired
Robert Morris is a professor of computer science at MIT, where he is a member of the PDOS group. He has published extensively on wireless networks, distributed operating systems, and peer-to-peer applications. In 1988 his discovery of buffer overflow first brought the Internet to the attention of the general public. He has an AB and PhD in Computer Science from Harvard.

Batch

Renée Beck
Chief of Staff
Sydney Daniels
Executive Assistant
Lauren Goldberg
Executive Assistant
Camilla Herich
Executive Assistant
Pegah Saki Payne
Executive Assistant
Tayler Princeau
Junior Executive Assistant
Martina Tokosova Rivas
Executive Assistant
Jessica Shapiro
Event Ops
Leah Ulip
Junior Executive Assistant
Maria Vasina
Executive Assistant

Application Operations

Eve Bouffard
Product Designer
Sean Pennino
Product Engineer

Investment Operations

Josh France
Product Engineer
Jared Hobbs
Product Engineer
Lewis Ellis
Product Engineer

Software

Regan Bell
Product Engineer
Doug Duhaime
Product Engineer
Emanuel Evans
Infrastructure Software Engineer
Casey Muller
Product Engineer
Evan Solomon
Product Engineer
Simon Sturmer
Product Engineer
Mark Thurman
Head of Infrastructure and Security

Post Batch

Eric Bakan
Head of Data
Katherine Bernstein
Product Engineer
Ryan Choi
EM & Product Engineer
Jon Levy
Managing Director, Partnerships
Chris Simon
Data & Community Analyst
Jamie Sunderland
Product Engineer

Legal

Otice Carder
Legal Analyst
Mitch Duncombe
Legal Counsel
Jack Hoppe
Legal Analyst
Gaby Kapp
Legal Counsel
Carolynn Levy
Managing Director, Legal
Brigid McCurdy
Senior Legal Counsel
Caroline McKenna
Legal Analyst
Nick McMullan
Legal Analyst
Alex Petersen
Associate General Counsel
Angela Prochnow
Director of Legal Operations
Tommy Szalasny
Legal Counsel
Tasnim Thakur
Legal Operations Analyst
Shirley Truy
Legal Operations Specialist
Tatyana Veremyova
Director of Employment Compliance

Finance

Allison Bryan
Director of Accounting
Jess Burns
Tax Manager
Eric Chen
Fund Accountant
Celia Cheung
Director of Finance
Kirsty Nathoo
Partner Emeritus
Yna Ortega
Assistant Controller
Verena Prescher
Head of Finance
Anji Song
Fund Controller
Robert Tong
Staff Accountant
Hetal Weber
GP Fund Accounting Manager
Shaun Weber
Director of Tax
Shellie Wong
Assistant Controller

Media

Justin Brown
Researcher & Production Assistant
Sanjana Friedman
Writer & Researcher
Matthew Kang
Senior Video Producer
Ryan Loughlin
Senior Video Producer
Steven Pham
Head of Media

HR and Workplace

Adele Gower
Workplace Operations Manager
Renee Mars
Head of HR and Workplace
Sophia Mayol
Office Manager

Policy

Luther Lowe
Head of Public Policy

Hacker News

Daniel Gackle
Hacker News