YC S13 Startups
Every Y Combinator Summer 2013 company we currently index.
About YC S13
The Y Combinator S13 batch (Summer 2013) brought 30 tech startups into our index. This page lists every S13 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable S13 companies include 7cups, Apptimize, Arcus, Asseta, and BloomThat. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The S13 cohort skews toward Consumer, Dev Tools, and Fintech — common patterns we see in this batch. Recurring tags across these companies: SaaS, B2B, Marketplace, Fintech, Payments. The directory's filter UI accepts any of them as a query. Geographically, the S13 batch we have leans toward San Francisco, New York City, and Los Angeles, with the rest spread across remote-first teams and other hubs. 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 S13 batch?
S13 is the Y Combinator batch code for the Summer 2013 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 30 tech startups from this batch.
How many companies are in YC S13?
Our index currently tracks 30 active tech startups from the YC S13 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 S13?
Among the S13 companies indexed here: 7cups, Apptimize, and Arcus, and 27 more on this page. Click any profile for category, team size, founding year, and open roles.
Where can I find open jobs at YC S13 startups?
Open roles from indexed S13 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 S13 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.