All 125 companies in Y Combinator's Summer 2017 batch, with team size, growth, open roles and funding.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|
The first public safety operating system that eliminates crime. | 1,446 | +1% | +6% | 32 | $1.2B | Series I$200M, Apr 2026 |
Next-gen digital payments provider for India. | 982 | +8% | +8% | 1 | $93.9M | Series C$53M, Feb 2025 |
The genetic testing platform detecting and measuring disease. | 866 | +13% | +26% | 21 | $426M | Series D$130M, Jun 2024 |
Customized fertility benefits for modern companies. | 632 | +2% | +11% | 3 | $114M | Series C$75M, Aug 2021 |
Talent engagement platform | 507 | 0% | +7% | 0 | ||
Jerry is building the AI agent to manage all your physical assets. | 409 | +4% | +19% | 47 | $242M | Series C$110M, Aug 2023 |
Transforming cities and rural areas through AV transit and technology | 369 | +4% | +7% | 9 | $310M | Corporate round$7M, Oct 2025 |
API-connected healthcare infrastructure. | 310 | −5% | −9% | 0 | $255M | Series D$142M, Oct 2021 |
Sales software for roofers. Aerial measurements + proposals in seconds | 295 | +7% | 5 | $43.8M | Series B$23.5M, Jan 2025 | |
Headstart uses Machine Learning to help companies decide on who to… | 220 | −2% | −2% | 0 | $16.6M | Seed$5M, Sep 2019 |
Where Single Muslims meet | 187 | +2% | +10% | 2 | $10.9M | Series A$7M, Jan 2024 |
YC for your career | 152 | +1% | −11% | 0 | $29.2M | Series B$17M, Jul 2022 |
Enable creators and developers to generate realistic AI personas | 147 | −9% | +6% | 2 | $47.9M | Series B$25M, Mar 2022 |
Autonomous electric airplanes | 140 | +6% | +40% | 8 | $88.1M | Series B$40M, Sep 2024 |
Just Appraised makes software for local governments. | 140 | +6% | +5% | 1 | $24.8M | Series A$12.3M, Apr 2024 |
Pop Meals is a restaurant chain without chefs. All recipes are… | 134 | +2% | YC | $27M | Series B$18M, Feb 2020 | |
The best way to build Voice AI apps | 116 | +16% | +8% | 7 | $113M | Series C$50M, Dec 2023 |
AI-Powered Building Management | 109 | +2% | −8% | 1 | $82.6M | Series C$60M, Nov 2021 |
Africa's #1 healthcare technology provider. | 109 | −6% | −20% | 8 | $62.7M | Series B$30M, Jun 2023 |
AI-powered checkout for retail. | 87 | −10% | −8% | YC | $239M | Undisclosed round$900K, Aug 2026 |
OneLocal is a CRM for local businesses. | 86 | +2% | −4% | 2 | Series AOct 2019 | |
The operating system powering ecommerce fulfillment | 82 | +1% | +3% | 3 | $46.5M | Series B$31M, Mar 2021 |
Simplifying payouts at scale | 68 | 0% | −8% | 0 | $46.5M | Series B$500K, Apr 2022 |
Creating a new form of air transportation to advance our civilization | 64 | +16% | +45% | 8 | $58.1M | Debt$5M, Jun 2025 |
LTSE is an ecosystem for visionary business. | 64 | −4% | 0 | $169M | Series C$100M, Jun 2022 | |
We help dealerships appraise vehicle trade-ins more efficiently… | 61 | +22% | +45% | 0 | $120K | YC investment$120K, Aug 2017 |
Dating & relationship coaching sessions for individuals and couples | 61 | +11% | +5% | 1 | $2M | Seed$2M, Jan 2018 |
We make high definition radar allowing self-driving cars to see in… | 59 | 0% | −6% | 2 | $22.5M | Undisclosed round$4M, Nov 2023 |
Build better banking | 58 | +38% | +32% | 9 | $4M | Undisclosed round$2M, Mar 2022 |
Platform for unique products produced on-demand at mass-scale | 55 | −5% | −7% | 0 | $5.5M | Non-equity support$4.2M, Sep 2022 |
Furniture rental for consumers and businesses. | 51 | +6% | +24% | 0 | $76M | Undisclosed round$30M, Apr 2021 |
AI platform for unifying codes, assemblies, products, and specs | 48 | +7% | +33% | 3 | $7.6M | Series A$3.5M, Aug 2024 |
The financial foundation for every real estate development decision | 47 | +7% | 0 | $9.9M | Debt$1.8M, May 2023 | |
First financial Superapp of Latin America | 46 | +5% | +10% | 0 | $15.8M | Corporate round$700K, Mar 2026 |
Data-driven teacher hiring | 45 | −4% | −4% | YC | $120K | Seed$120K, Jan 2018 |
Customer intelligence for Enterprise CX teams. The grounded… | 40 | −9% | −11% | 1 | $1.8M | Grant$212K, Jul 2020 |
Turning food waste into Biochar to remove CO2 from the atmsophere | 39 | −5% | −9% | 0 | $9.5M | Non-equity support$250K, Apr 2025 |
On demand web app help | 39 | +8% | +18% | 0 | $120K | YC investment$120K, Aug 2017 |
Py is democratizing access to career opportunities in tech | 38 | −3% | −3% | 0 | $120K | YC investment$120K, Aug 2017 |
Marketplace for local activities. | 37 | +12% | +28% | 9 | $120K | YC investment$120K, Aug 2017 |
We help kids stay curious by creating better explanations. | 35 | −5% | −5% | 0 | $4M | Seed$2M, Oct 2017 |
Chat for gaming communities | 31 | +3% | −6% | 0 | $10.2M | Undisclosed round$7M, Jan 2021 |
Turnkey security & hassle-free cyber insurance from leading insurers | 24 | −8% | −8% | 0 | $15M | Series A$8M, Oct 2023 |
Early detection of Alzheimer's disease | 23 | 0% | +5% | 0 | $14.6M | Undisclosed round$3.5M, Oct 2023 |
Your voice. Your health. We care. | 22 | −42% | −45% | 0 | $5.3M | Seed$5.2M, Oct 2017 |
Decarbonized heat and power cheaper than fossil fuels | 21 | −5% | 0 | $5.3M | Undisclosed round$3.2M, Mar 2024 | |
bxblue is a marketplace for people with guaranteed income in Brazil.… | 20 | +5% | −5% | 0 | $7M | Series A$7M, Jan 2021 |
Automated factory to produce insect protein for farm animals. | 19 | −17% | −21% | 0 | $18.6M | Undisclosed round$2.6M, Jul 2024 |
Automating regulatory approval & compliance for life science companies | 18 | +13% | 0 | $2M | Seed$1.9M, Oct 2017 | |
| 18 | 0% | −10% | 0 | $150K | Seed$120K, Apr 2022 |
Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.
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.
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.
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.
# 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
125 companies were in Y Combinator's Summer 2017 batch (S17); 54 are active.
23 companies posted roles in the last 60 days, led by Jerry (47 roles), Flock Safety (32 roles) and BillionToOne (21 roles). 19 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Prelim (+38%), Skyways (+16%) and AssemblyAI (+16%).
Largest latest rounds in the last 12 months, after their YC batch: Flock Safety ($200M), Standard AI ($900K) and tpaga ($700K).