YC S17 Startups
Every Y Combinator Summer 2017 company we currently index — part of the latest YC companies rollup.
About YC S17
The Y Combinator S17 batch (Summer 2017) brought 91 tech startups into our index. This page lists every S17 company we currently track, with logos, taglines, and links straight to their own sites — no paywalled middleman. Notable S17 companies include AssemblyAI, BillionToOne, 10 By 10, Advano, and Aecore. Each profile surfaces team size, founding year, location, and open roles when their careers page is publicly scrapable. The S17 cohort skews toward Consumer, Healthcare, and Fintech — common patterns we see in this batch. Recurring tags across these companies: SaaS, Fintech, Artificial Intelligence, B2B, Marketplace. The directory's filter UI accepts any of them as a query. Geographically, the S17 batch we have leans toward San Francisco, London, and New York City, with the rest spread across remote-first teams and other hubs. 2 of these are 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 S17 batch?
S17 is the Y Combinator batch code for the Summer 2017 cohort. Companies joining a YC batch go through a 3-month program in California and demo their product at the end. techstartupslist.com indexes 91 tech startups from this batch.
How many companies are in YC S17?
Our index currently tracks 91 active tech startups from the YC S17 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 S17?
Among the S17 companies indexed here: AssemblyAI, BillionToOne, and 10 By 10, and 88 more on this page. Click any profile for category, team size, founding year, and open roles.
Where can I find open jobs at YC S17 startups?
Open roles from indexed S17 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 S17 page updated?
Automated scrapers refresh this page daily. The last index update was 2026-09-02. Inactive companies fall out of the count automatically — we don't keep dead listings live.