All 110 companies in Y Combinator's Winter 2015 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 |
|---|---|---|---|---|---|---|
Cloud solutions for the construction industry. | 4,390 | +6% | +13% | 262 | $6.3B | Debt$2.8B, Dec 2025 |
India's only full-stack financial solutions company for businesses. | 4,038 | −1% | −2% | 17 | $817M | Secondary$75M, May 2022 |
A complete DevOps platform delivered as a single application. | 3,477 | +1% | +7% | 230 | $414M | Post-IPO equity$268M, Feb 2022 |
Extremely talented assistants for busy people | 1,877 | +1% | +3% | YC | $12.3M | Undisclosed round$139K, Jun 2024 |
Inspection software for renewable energy & sustainable infrastructure | 706 | +2% | +1% | 1 | $174M | Undisclosed round$60M, Mar 2025 |
Turning company knowledge into expert teams | 517 | +1% | +3% | 11 | $78.4M | Series B$62M, Dec 2021 |
Tech in Asia (YC W15) is the largest English-language technology… | 304 | +2% | +1% | 0 | $17M | Undisclosed round$6.6M, Nov 2017 |
We automate operations for hospitals and health systems | 271 | +7% | +19% | 13 | $203M | Series D$85M, Jan 2025 |
Live home fitness training powered by computer vision. | 218 | +3% | +3% | YC | $299M | Series C$220M, Apr 2021 |
We’re building a platform to empower cities to plan the best possible… | 187 | +4% | +8% | 0 | $27M | Grant$15M, Jul 2020 |
Rebuilding healthcare with AI at the core | 185 | −4% | +43% | 3 | $85.1M | Series B$60M, May 2025 |
Sunrun for the developing world | 158 | −1% | −2% | 0 | $78.8M | Debt$15M, Oct 2025 |
On-demand prescription delivery. | 158 | −7% | −11% | 0 | $74.9M | Undisclosed round$14.7M, Jun 2022 |
Self-Checkout using Computer Vision. | 130 | +8% | +13% | YC | $73.7M | Series B$62.5M, May 2022 |
AI-powered technology enabler and digital transformer of American… | 129 | +7% | +11% | 0 | $599M | Series H$50M, Feb 2026 |
Marketplace for employers to recruit college students and recent grads | 96 | +7% | +9% | 0 | $37.3M | Private equity$10M, Oct 2018 |
Bringing wider access to financial derivatives. | 95 | +10% | +30% | 0 | $1.5M | Undisclosed round$750K, Jun 2015 |
The world's first private mass transit service providing a commuting… | 85 | +1% | 0 | $6M | Undisclosed round$3M, Sep 2016 | |
Beautiful, personalized, interactive developer hubs | 77 | −7% | −5% | 2 | $10.1M | Series A$9M, Aug 2019 |
An end-to-end digital banking solution for banks and credit unions | 72 | +4% | −9% | 6 | $14.3M | Undisclosed round$12.5M, Mar 2023 |
Mobile banking for small business. | 72 | 0% | 0% | 0 | $5.9M | Seed$120K, Aug 2018 |
Revolutionising the way travellers discover, plan and book a trip | 63 | −3% | −5% | YC | $120K | YC investment$120K, Mar 2015 |
Bluesmart makes smart luggage powered by an app to empower people to… | 62 | +5% | +13% | 0 | $26M | Crowdfunding$2M, Jul 2017 |
Observability platform to control all of your log data | 61 | +2% | −8% | 0 | $108M | Series D$50M, Dec 2021 |
SIRUM is a “match.com” for unused medicine. We connect institutional… | 53 | +6% | 0 | $120K | YC investment$120K, Mar 2015 | |
Medical device that provides a more effective, less invasive… | 48 | +12% | +41% | 1 | $134M | Series D$52M, Oct 2026 |
Laundry & Dry Cleaning delivered. | 47 | +2% | +2% | 0 | $13.8M | Series B$6.5M, Mar 2018 |
Packaging for online brands. | 44 | −4% | −4% | 0 | $9.4M | Series A$9M, Feb 2018 |
Personalized drug discovery for blood cancer. | 29 | +4% | +4% | YC | $57.2M | Series B$189K, Jul 2022 |
Meet Tara AI, your new engineering efficiency co-pilot. | 27 | +8% | +17% | 0 | $13M | Non-equity support$10M, Mar 2024 |
Targeting Cancer with Click Chemistry | 26 | −10% | −7% | 0 | $65.4M | Grant$1.9M, Dec 2021 |
Our vision is to build the next generation of iOS or Android, to… | 24 | −4% | −4% | 0 | $30.1M | Series A$9M, May 2016 |
Booktrope provides a software platform that makes it easy for… | 23 | 0% | 0% | 0 | $2.3M | Angel$1.2M, Apr 2015 |
Software for collaborating with content creators and influencers | 23 | −8% | −12% | 0 | $12.2M | Series B$1.1M, Dec 2018 |
The affordable way to search, find & communicate with an incarcerated… | 20 | 0% | +5% | 0 | $6.7M | Undisclosed round$1.5M, Dec 2019 |
Real-time Nielsen ratings for Brands.Accelerate marketing and product… | 19 | −5% | −5% | 0 | SeedMar 2015 | |
Helping restaurant employers find & hire better employees faster | 17 | −6% | −15% | 0 | $2M | Private equity$400K, Jan 2021 |
Mobile Productivity(Slack for mobile workforces) | 17 | +6% | +6% | 0 | $161K | Non-equity support$41K, Jul 2019 |
Fundraising, Volunteer and Donor Management SaaS for nonprofits. | 17 | −6% | −6% | YC | $500K | YC investment$500K, Mar 2015 |
Early, pain-free cancer detection. | 17 | −15% | −29% | 0 | $5.6M | Seed$4M, May 2018 |
Artificial intelligence for drug discovery. | 15 | −12% | −6% | 0 | ||
Paperspace is a cloud platform for building and scaling AI… | 15 | 0% | 0% | 0 | ||
Scale new user acquisition with YouTube Creators | 14 | 0% | 0% | 0 | SeedApr 2015 | |
Point of Sale and Compliance SaaS for Cannabis Dispensaries | 14 | −7% | −7% | 0 | $2.1M | Undisclosed round$2.1M, Jan 2020 |
Labdoor is building the trusted online drugstore. | 9 | +13% | +13% | 0 | $10.8M | Series A$3.4M, Nov 2016 |
End-to-end data science lifecycle management platform. | 9 | 0% | +13% | 0 | ||
NexTravel is a centralized travel booking platform that helps… | 7 | 0% | +40% | 0 | $4.5M | Series A$2.4M, Jan 2020 |
Data Versioning, Data Pipelines, and Data Lineage | 6 | +20% | 0 | $28.1M | Series B$16M, Aug 2020 | |
Upgrading Your Wine Experience | 6 | 0% | 0% | 0 | $13.5M | Seed$12.5M, Mar 2022 |
Intelligent data security for teams | 6 | 0% | 0% | 0 | SeedAug 2016 |
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
110 companies were in Y Combinator's Winter 2015 batch (W15); 40 are active.
10 companies posted roles in the last 60 days, led by EquipmentShare (262 roles), GitLab (230 roles) and Razorpay (17 roles). 9 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Zenflow (+12%), Mashgin (+8%) and Tara AI (+8%).
Largest latest rounds in the last 12 months, after their YC batch: Zenflow ($52M) and GrubMarket ($50M).