AI Mentions, Links & Domains Report for Y Combinator
This page provides details about airbnb.com (source) which was ranked #5 out of 63 link domains (5 citations (3.1% share)) in answers from AI models (Perplexity Sonar Pro Search,
Anthropic Claude Sonnet Latest,
OpenAI ChatGPT Latest,
Google Gemini Flash (latest),
xAI Grok Latest) when they were asked the following 1 question: "What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available." on May 12, 2026 by AICW AI Mentions. This source is referenced for brands: Y Combinator, Airbnb, Stripe, OpenAI.
| Model | Voice | Position | Citations |
|---|---|---|---|
|
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6.1% | 9 | 1 |
|
|
4.2% | 2 | 1 |
|
|
3.1% | 11 | 1 |
|
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1.5% | 11 | 1 |
|
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1.1% | 5 | 1 |
| URL Path | Citations | Position |
|---|---|---|
| airbnb.com | 5 | 10.6 |
| Brand | Voice | Mentions |
|---|---|---|
| Y Combinator | 100% | 59 |
| Airbnb | 4.9% | 7 |
| Stripe | 4.8% | 8 |
| OpenAI | 4.4% | 8 |
What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available.
[...] pens at YC | Y Combinator](https://www.ycombinator.com/about). ## Most Notable Portfolio Companies Y Combinator is best known for backing transformative companies that became industry leaders: | Company | Valuation/Outcome | YC Batch | Focus | |---------|-------------------|----------|-------| | [Airbnb](https://www.airbnb.com) | $100B+ (public) | W09 | Hospitality/Travel | | [OpenAI](https://openai.com) | $500B+ (private) | S05 | Artificial Intelligence | | [Stripe](https://stripe.com) | $107B (private) | W07, S09 | Payments Infrastructure | | [Coinbase](https://www.coinbase.com) | $86B (public) | S12 | Cryptocurrency | [...]
What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available.
[...] has funded **4,000+ companies** across many countries - **High success rate**: Its portfolio companies have a combined valuation in the **hundreds of billions of dollars** --- ## Most Notable Alumni Companies These are among the most famous YC-backed companies: | Company | Domain | |---|---| | [Airbnb](https://www.airbnb.com/) | Hospitality / Travel | | [Stripe](https://stripe.com/) | Payments | | [Reddit](https://www.reddit.com/) | Social Media | | [Dropbox](https://www.dropbox.com/) | Cloud Storage | | [DoorDash](https://www.doordash.com/) | Food Delivery | | [Coinbase](https://www.coinbase.com/) | Crypto Exchange | | [...]
What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available.
[...] up School: https://www.startupschool.org/ - YC Library: https://www.ycombinator.com/library - YouTube channel: https://www.youtube.com/ycombinator Organizations and companies most closely associated with Y Combinator These companies are among the most famous YC-backed startups: - [Airbnb](https://www.airbnb.com/) - YC Winter 2009 - YC company page: https://www.ycombinator.com/companies/airbnb - [Stripe](https://stripe.com/) - YC Summer 2010 - YC company page: https://www.ycombinator.com/companies/stripe - [DoorDash](https://www.doordash.com/) - YC Summer 2013 - YC company page: ht [...]
What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available.
[...] og.samaltman.com](https://blog.samaltman.com/) * **Michael Seibel:** A long-time Managing Director at YC and co-founder of Justin.tv (Twitch). [mbrandons.com](https://www.mbrandons.com/) ### Most Successful Portfolio Companies (Alumni) * **Airbnb:** A global platform for stays and experiences. [airbnb.com](https://www.airbnb.com/) * **Stripe:** A suite of APIs powering online payment processing. [stripe.com](https://www.stripe.com/) * **Dropbox:** A cloud storage and file synchronization service. [dropbox.com](https://www.dropbox.com/) * **Coinbase:** A leading cryptocurrency exchange. [coinbase.com](https://www.coinb [...]
What is Y Combinator known for today, and which organizations, products, people, publications, communities, or websites are most closely associated with it? Include direct source links for every notable entity when available.
[...] e People - Paul Graham (co-founder, continues to publish influential essays on startups): [paulgraham.com](https://paulgraham.com/) - Sam Altman (former YC president; now leads OpenAI): [openai.com](https://openai.com/) ### Prominent YC-Funded Companies (Examples) - [Stripe](https://stripe.com/) - [Airbnb](https://www.airbnb.com/) - [Dropbox](https://www.dropbox.com/) - [Reddit](https://www.reddit.com/) These entities are repeatedly referenced on YC's own site, blog, Hacker News, and Paul Graham's essays. [...]