YC S11 Startups
Every Y Combinator Summer 2011 company we currently index.
About YC S11
The Y Combinator S11 batch (Summer 2011) brought 40 tech startups into our index. This page lists every S11 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable S11 companies include GoCardless, AgileMD, Aisle50, Apollo, and Automatic. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The S11 cohort skews toward Consumer, Infrastructure, and Marketing — common patterns we see in this batch. Recurring tags across these companies: SaaS, B2B, Developer Tools, Fintech, Education. The directory's filter UI accepts any of them as a query. Geographically, the S11 batch we have leans toward San Francisco, Chicago, and San Mateo, with the rest spread across remote-first teams and other hubs. 1 of these is currently flagged as trending based on momentum signals; and the listing refreshes whenever the scrape runs, so changes propagate without a manual edit.
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Frequently asked questions
What is the YC S11 batch?
S11 is the Y Combinator batch code for the Summer 2011 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 40 tech startups from this batch.
How many companies are in YC S11?
Our index currently tracks 40 active tech startups from the YC S11 batch. New companies appear here automatically when our daily scraper finds them; companies that shut down are flagged inactive and hidden from listings.
Which companies graduated from YC S11?
Among the S11 companies indexed here: GoCardless, AgileMD, and Aisle50, and 37 more on this page. Click any profile for category, team size, founding year, and open roles.
Where can I find open jobs at YC S11 startups?
Open roles from indexed S11 companies appear on our /jobs page, aggregated alongside roles from other indexed startups. Each role links directly to the company's official application page.
How often is the YC S11 page updated?
Automated scrapers refresh this page daily. The last index update was 2026-07-17. Inactive companies fall out of the count automatically — we don't keep dead listings live.