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YC W17 companies (Winter 2017)

All 116 companies in Y Combinator's Winter 2017 batch, with team size, growth, open roles and funding.

Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.

Hiring the mostlast 60 days
192 roles
RipplingW17
  1. 2ACLU90
  2. 3Clipboard20
See all 15
Fastest growingteam, 6 months
+30%
MDalgorithms Inc.W17
  1. 2Tolemi+21%
  2. 3OneFin+14%
See all 23
Shrinkingteam, 12 months
−37%
Ledger InvestingW17
  1. 2Mednet−12%
  2. 3Dost Education−11%
See all 12
Raised the mostlast 12 months
$11.5M
AON3DW17
Companies
116
Active
54
Hiring, last 60 days
15
Open roles, 60 days
369
People on these teams
23,749
Showing 50 of 116 companies
CompanyTeam6 mo12 moOpen rolesTotal raisedLast round
One place to run all your HR, IT, and Finance. Globally.
7,889+5%+23%192$2.4BSeries G$450M, May 2025
Every shift, Covered.
4,141+10%+18%20$94.1MSeries C$30M, Feb 2022
Defender of rights and liberties
1,281+7%+7%90$125KGrant$25K, Jan 2020
We make healthcare in emerging markets affordable and accessible
578−1%−8%6$48.3MSeries B$40M, Feb 2022
Global Business Banking for Africa's Ambitious Businesses.
423+1%−2%0$50.7MDebt$3M, Sep 2026
Build internal tools fast.
407−2%−11%13$141MSeries C$45M, Jul 2022
Snappr is the one-stop-shop for visual content creation
384−5%−9%YC$41MSeries B$28M, Oct 2025
Automatic Data Extraction
327+8%+23%3$40.5MSeries B$29M, Mar 2024
A superhuman, AI-powered language tutor in your pocket
319+7%+22%YC$152MSeries C$78M, Dec 2024
Hogaru is a tech-enabled home services platform in Latin America.
281+1%+5%0$1.4MSeed$810K, Mar 2017
Hosted Continuous Integration and Delivery for mobile apps
189+3%+6%2$83.5MSeries C$60M, Nov 2021
ISP for Africa
183−5%−8%0$5.1MDebt$3M, Oct 2023
Modern employee benefits & health savings account (HSA) provider
173+1%−1%8$122MSeries C$80M, Oct 2021
AI company transforming enterprise physical security to prevent…
157+1%+8%3$72.1MUndisclosed round$20M, Oct 2023
Mobile-first software for maintenance teams.
157+1%−1%0
Neema is an app for unbanked workers, which provides a checking…
143+3%+13%0$19.3MUndisclosed round$17.7M, Dec 2021
Full Stack Fintech and Supply Chain Platform for Global Trade
136+9%+5%0$9.9MDebt$3.3M, Jul 2020
Modern bill payment platform for African businesses and consumers.
134 +1%0$120KUndisclosed round$120K, Nov 2022
Decarbonizing the chemicals industry.
133+2%−1%0$856MDebt$214M, Jun 2024
We're your non-profit portfolio managers. We make giving to…
119+5%+8%7
We help healthcare orgs collect more money faster
102+5%+15%YC$33.9MSeries A$29M, Jul 2023
Diversified credit infrastructure powering payments across Africa.
99+5% 0$10.3MDebt$10M, Feb 2020
Additive Manufacturing with advanced materials
85 +10%1$14.3MUndisclosed round$11.5M, Jan 2026
#1 easiest-to-use payroll for startups
80+1% 0$6.9MSeed$6.7M, Jun 2021
Shopify for Financial Services
72+14%+18%3SeedJan 2020
Document AI. One API Call.
58+2%+2%YC$12.7MSeries A$12M, Apr 2021
Boeing for electric planes
50+11%+9%YC$4.1MGrant$3.3M, Aug 2024
Mednet helps doctors answer their toughest clinical questions, …
46−6%−12%1$1.5MGrant$225K, Jan 2019
Continuous Deployment at any scale, for all developers.
40  0$82MUndisclosed round$40M, May 2022
Getting kids ready for school in India.
39 −11%0GrantMar 2017
E-commerce 2.0
38−3%−7%0$13MSeed$10M, Mar 2021
Data integration & insights for state and local governments
34+21%+26%3$3.2MSeed$3.1M, Jan 2018
Upcall provides outbound call professionals as a service.
30−3%+3%0$2.2MSeed$2.2M, Apr 2017
Marketplace for insurance securitization.
24−14%−37%YC$441MUndisclosed round$100M, Sep 2024
We are Alibaba of Africa. We are building a marketplace for African…
230%0%0$3.1MSeed$3M, Jul 2019
Neural interfaces to understand and use nerve data in medicine.
23−8%−8%0$46.8MUndisclosed round$20M, Jan 2024
Online & In-Person Kids Activities
21−5%−12%0$11.6MSeries B$5.5M, May 2019
Fitbit for dairy cows. Farms use cowlar's alerts & recommendations to…
200%−9%0$50KYC investment$50K, Jan 2017
Uber for Kids
200%+5%0$270KUndisclosed round$150K, Jan 2021
One clinic for every sleep issue
17+6%+31%0$12.6MNon-equity support$10M, Jan 2026
AI Radiologist in a Box - We provide a vertically integrated AI…
17−6%−11%YC$120KYC investment$120K, Mar 2017
Leading audio subscription platform for Spanish content and creators
16+7%+14%0$13.1MSeries A$13M, Feb 2023
Helping retailers discover and shop the best brands on the planet
16−16%−20%0$9.2MConvertible note$7M, Mar 2021
Next-generation mRNA platform to solve cancer, COVID and climate.
150%−12%0$60MSeries A$231K, Apr 2024
Democratizing Dermatology with AI
13+30%+30%YC$10.2MUndisclosed round$6M, Jun 2022
An Operating System for agriculture.
12+9%+9%YC$4.5MGrant$150K, Jun 2024
Complete fare payment platform for public transportation
120%0%0$4.1MSeed$4.1M, Oct 2019
Penny makes keeping track of your finances as easy as having a…
110%0%0$1.3MYC investment$120K, Mar 2017
Blood testing device for early diagnosis of cancer and treatment…
110%−8%0$2.9MSeed$204K, Jan 2023
Scribe is an AI based Sales Development Representative that you can…
100%0%0$120KYC investment$120K, Mar 2017

How this works

1. The roster

Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.

2. The numbers

Each company is matched to Crustdata by its website. Crustdata adds team size and its change over 6 and 12 months, open roles from job postings, reported funding, and founders' past employers.

3. The lists

Hiring the most counts distinct roles posted in the last 60 days. Growth needs 10+ people today, shrinking 20+ a year ago, so tiny teams do not top the lists. Rebuilt every week.

Built with Crustdata. Get your own API key and build your own.

The numbers on this page come from three Crustdata API calls. Crustdata tags 5,000+ companies with Y Combinator as an investor; swap the filter for any investor, industry or headcount range and track your own list, with founders' work emails one call away.

  • Company search for team size, growth and funding
  • Job search with a count by company, for who is hiring and for what
  • A watch that re-runs the search weekly and sends only what changed
# 1. every company with Y Combinator as an investor
curl https://api.crustdata.com/company/search \
  -H "authorization: Bearer $CRUSTDATA_API_KEY" \
  -H "x-api-version: 2025-11-01" \
  -d '{
    "filters": { "field": "funding.investors",
                 "type": "in", "value": ["Y Combinator"] },
    "fields": ["basic_info.name",
      "headcount.total", "headcount.growth_percent",
      "funding.total_investment_usd"],
    "limit": 100
  }'

# 2. open listings per company, last 60 days (limit 0 = counts only)
curl https://api.crustdata.com/job/search \
  -H "authorization: Bearer $CRUSTDATA_API_KEY" \
  -H "x-api-version: 2025-11-01" \
  -d '{
  "filters": { "op": "and", "conditions": [
    { "field": "company.basic_info.company_id",
      "type": "in", "value": [...] },
    { "field": "metadata.date_added",
      "type": "=>", "value": "2026-08-24" } ]},
  "limit": 0,
  "aggregations": [{ "type": "group_by",
    "field": "company.basic_info.company_id", "agg": "count" }]
}'

# 3. the same company filter as a weekly watch: POST /watch/company/search

Questions about YC W17 companies

How many YC W17 companies are there?

116 companies were in Y Combinator's Winter 2017 batch (W17); 54 are active.

Which YC W17 companies are hiring?

15 companies posted roles in the last 60 days, led by Rippling (192 roles), ACLU (90 roles) and Clipboard (20 roles). 20 mark themselves as hiring on YC's directory.

Which YC W17 companies are growing fastest?

By team growth over 6 months (10+ people): MDalgorithms Inc. (+30%), Tolemi (+21%) and OneFin (+14%).

Which YC W17 companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: AON3D ($11.5M).

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