# Gustaf Alstromer

> Gustaf Alstromer is a General Partner at Y Combinator, the world's most prestigious startup accelerator. A Swedish-born, San Francisco-based operator-turned-investor, he spent five years scaling Airbnb's growth team from 3 to 100+ people before joining YC in 2016. At YC he has mentored 600+ startups with a combined valuation of $118B+, reviewed 9,000+ applications, and become one of Silicon Valley's most cited voices on growth, experimentation, and climate tech entrepreneurship.

- **Role:** General Partner at Y Combinator
- **Organizations:** Y Combinator, Airbnb, Voxer, Heysan, Heart Aerospace (board), Remora (advisor)
- **From:** Sweden
- **Nationality:** Swedish-American
- **Education:** New Media Business & Management, Hyper Island
- **Known for:** Scaled Airbnb's Growth team from 3 to 100+ employees over 5 years, Mentored 600+ YC startups with combined valuation exceeding $118 billion, Reviewed over 9,000 YC startup applications

## Career timeline

- **2007** — Co-founded Heysan, a mobile communications startup, as part of Y Combinator W07 batch
- **2009** — Heysan acquired by Good Technology
- **2010** — Joined Voxer as VP of Growth; moved to San Francisco
- **2011** — Voxer launched on the App Store; Gustaf led growth strategy
- **2012** — Joined Airbnb as Product Lead for Growth team (initial team of 3)
- **2016** — Left Airbnb; joined Y Combinator as Visiting Partner in November
- **2017** — Promoted to General Partner at Y Combinator
- **2022** — Delivered 'How To Talk To Users' lecture at YC Startup School
- **2023** — Featured on Lenny's Podcast; became U.S. citizen
- **2025** — Welcomed first child; participated in YC AI Startup School; YC Paris events

## Achievements

- Scaled Airbnb's Growth team from 3 to 100+ employees over 5 years
- Mentored 600+ YC startups with combined valuation exceeding $118 billion
- Reviewed over 9,000 YC startup applications
- Co-authored YC's 'Request for Startups: Climate Tech' — shaping YC's climate investment thesis
- Board member at Heart Aerospace, the Swedish electric aircraft company
- Advisor to Remora, carbon-capture technology for semi-trucks
- Became a naturalized U.S. citizen
- Built an angel investment portfolio of 100+ companies focused on climate and growth
- Went through YC as a founder (W07) then returned as a General Partner — a rare full-circle journey
- Led growth at Airbnb during its defining hypergrowth years (2012-2016)

## Latest updates

- **2025-11** — Announced birth of his son on X/Twitter — 'Two and a half months ago our son was born. Being a parent is really hard but also the best thing in the world.'
- **2025-04** — Participated in YC events in Paris and at Founders House
- **2025-03** — Participated in YC AI Startup School 2025
- **2023-09** — Featured on Lenny's Podcast discussing lessons from 600+ YC startups
- **2023-01** — Published 'How to Get Your First Customers' in YC Startup Library
- **2022-12** — Delivered 'How To Talk To Users' lecture at YC Startup School

## Links

- Website: http://gustafalstromer.com/
- LinkedIn: https://www.linkedin.com/in/gustafalstromer
- Twitter/X: https://x.com/gustaf
- Instagram: https://www.instagram.com/gustaf/

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Profile page: https://yespress.io/gustaf-alstromer
Published by YesPress — https://yespress.io
Last updated: 2026-05-05