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YC Summer 2017 (S17)

125 companies Y Combinator lists for Summer 2017, with what each one builds. 21.5% of the tagged companies are AI, up from 19.1% in W17.

Companies
125
AI share
21.5%
Top sector
Social
9 companies
Second
Diagnostics
6 companies

What’s in Summer 2017

Summer 2017 lists 125 companies so far (W17 had 116). The biggest themes by YC's tags are Fintech (14), Marketplace (12), Climate (6), India (6) and Insurance (6). The largest sectors are Social, Diagnostics, Engineering, Product and Design and Healthcare IT. 25.2% are based outside the US.

  • Fintech · 14
  • Marketplace · 12
  • Climate · 6
  • India · 6
  • Insurance · 6

See what YC asked founders to build · Breakout themes across batches

All Summer 2017 companies

125 companies

  • Flock Safety

    The first public safety operating system that eliminates crime.

    AI
    Engineering, Product and Design1000Atlanta, GA, USA
  • Modern Fertility

    At-home fertility test for women who aren't ready for kids right now…

    Consumer Health and Wellness25San Francisco, CA, USAAcquired
  • 10 By 10

    10by10 is a unique marketplace in the recruiting agency industry for…

    AI
    Recruiting and Talent5San Francisco, CA, USA
  • Advano

    Advano is a battery technology company that improve the longevity of…

    Climate25New Orleans, LA, USA
  • Aecore

    Vertically integrated commercial construction

    Construction6San Francisco, CA, USA
  • Airthium

    Decarbonized heat and power cheaper than fossil fuels

    Climate18Paris, Île-de-France, France
  • And Comfort

    And Comfort is a direct to consumer fashion brand.

    Apparel and Cosmetics2San Francisco, CA, USAInactive
  • AssemblyAI

    The best way to build Voice AI apps

    AI
    Infrastructure65New York City, NY, USA
  • Audm

    Audm is a subscription service providing mini-audiobooks —…

    Content10Los Angeles, CA, USAAcquired
  • AutoHub

    We help dealerships appraise vehicle trade-ins more efficiently…

    Retail2Acquired
  • BillionToOne

    The genetic testing platform detecting and measuring disease.

    Diagnostics300San Francisco, CA, USAPublic
  • Bloom Institute of Technology

    The online coding school that invests in you.

    Education50Austin, TX, USA
  • Bumpline

    Captain Tailor is the Uber for tailoring.

    Healthcare Services2New York City, NY, USAInactive
  • bxblue

    bxblue is a marketplace for people with guaranteed income in Brazil.…

    Credit and Lending28DF, BrazilAcquired
  • Caelum Health

    Caelum Health is replacing drugs with software. We use behavioral…

    Consumer Health and Wellness2San Francisco, CA, USAInactive
  • Cairns Health

    Your voice. Your health. We care.

    AI
    Consumer Health and Wellness17San Francisco, CA, USA
  • Cambridge Cancer Genomics

    CCG.ai empowers clinicians to make personalised treatment strategies…

    Diagnostics25Cambridge, England, United KingdomInactive
  • Candidately

    The digital storefront for staffing and recruiting teams.

    Recruiting and Talent9New York City, NY, USA
  • CarDash

    Managed marketplace for automotive services.

    Transportation Services12San Francisco, CA, USAAcquired
  • Carrot Fertility

    Customized fertility benefits for modern companies.

    Healthcare ServicesSan Francisco, CA, USA
  • Cashfree Payments

    Next-gen digital payments provider for India.

    Payments200Bengaluru, KA, India
  • CocuSocial

    Marketplace for local activities.

    Food and Beverage10Vancouver, BC, Canada
  • Commissary Club (formerly 70 Million Jobs)

    First agentic AI-powered community for 1 billion people with criminal…

    AI
    Consumer2Miami, FL, USAInactive
  • Covetly

    #1 Collectibles Marketplace: Authentic Vinyl Toys, Comics, Funko Pop

    Home and Personal3New York City, NY, USAInactive

Source: Y Combinator’s public company directory. Each company links to its YC profile. See how we count and what YC asked founders to build.

Frequently asked questions

How many companies are in YC Summer 2017?

Y Combinator's public directory lists 125 companies for Summer 2017 (S17), compared with 116 in Winter 2017. YC adds companies as they launch, so a recent batch can still grow.

What kind of startups are in YC Summer 2017?

The most common themes by YC's own tags are Fintech (14), Marketplace (12), Climate (6), India (6) and Insurance (6). The largest sectors are Social, Diagnostics, Engineering, Product and Design and Healthcare IT. 21.5% of the companies YC has tagged are AI.

Where are YC Summer 2017 companies based?

25.2% of Summer 2017 companies with a listed location are based outside the US.