3,235 Y Combinator companies in B2B, with team size, growth, open roles and funding.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
The all-in-one HR and payroll platform for global teams | W19 | 9,642 | +1% | +21% | 144 | $1.3B | Series E$300M, Oct 2025 |
One place to run all your HR, IT, and Finance. Globally. | W17 | 7,889 | +5% | +23% | 192 | $2.4B | Series G$450M, May 2025 |
Backup and share files in the cloud. | S07Public | 3,970 | −3% | +3% | 35 | $2.8B | Post-IPO debt$400M, Jun 2026 |
A complete DevOps platform delivered as a single application. | W15Public | 3,477 | +1% | +7% | 230 | $414M | Post-IPO equity$268M, Feb 2022 |
Platform for global logistics. | W14 | 2,978 | +3% | +8% | 93 | $2.7B | Secondary$260M, Apr 2026 |
A flexible work app that connects businesses with hourly workers. | S15 | 2,747 | +7% | +16% | 2 | $148M | Series D$60M, May 2023 |
Change the world to value skills over pedigree | S11 | 2,231 | +4% | +14% | 3 | $103M | Series D$60M, Mar 2022 |
Vanta, the proven leader in automated compliance helping startups… | W18 | 1,993 | +6% | +34% | 9 | $503M | Series D$150M, Jul 2025 |
The leader in automated data movement | W13 | 1,934 | +5% | +13% | 44 | $853M | Debt$125M, May 2023 |
Extremely talented assistants for busy people | W15 | 1,877 | +1% | +3% | YC | $12.3M | Undisclosed round$139K, Jun 2024 |
Professional website design and publishing platform. | S13 | 1,847 | +9% | +16% | 46 | $335M | Undisclosed round$400K, Apr 2025 |
People infrastructure for the future of work | S14 | 1,846 | +3% | +14% | 28 | $740M | Undisclosed round$61.1M, May 2025 |
The everything store for restaurants in LATAM. | W19Inactive | 1,760 | 0% | 0 | $351M | Series D$80M, Nov 2024 | |
Providing Amazon level logistics to e-commerce businesses. | S14 | 1,730 | +6% | +14% | 35 | $331M | Series E$200M, Jun 2021 |
Get more leads. Make more money. | W16 | 1,661 | +6% | +12% | 36 | $423M | Undisclosed round$201M, Oct 2022 |
Making diverse, high-quality data easily available to anyone, anywhere | S19 | 1,580 | +14% | +72% | 19 | $33.5M | Series A$32.3M, Jul 2023 |
The easiest way to automate your work. | S12 | 1,530 | +3% | +8% | 12 | $1.4M | Undisclosed round$1.4M, Apr 2024 |
The first public safety operating system that eliminates crime. | S17 | 1,446 | +1% | +6% | 32 | $1.2B | Series I$200M, Apr 2026 |
The future of B2B spend | S20 | 1,421 | +13% | +38% | 3 | $371M | Series D$190M, Oct 2024 |
Customer communication and payments platform. | W14Public | 1,203 | +3% | +6% | 5 | $172M | Secondary$3.8M, Jun 2021 |
The fastest shipping for online shopping | W20 | 1,170 | +1% | +4% | 107 | $129M | Series C$82M, Mar 2022 |
Software development platform. | S10 | 1,108 | +7% | +20% | 38 | $436M | Series C$105M, Mar 2022 |
AI-First Creative Partner for Enterprise Teams | W16 | 1,036 | +3% | +8% | 5 | $35.1M | Series A$30M, Dec 2021 |
Jasper is a leader in creating content using Artificial Intelligence | W18 | 1,019 | −2% | +1% | 2 | $131M | Undisclosed round$400K, Jan 2026 |
Apollo is the foundation of your entire go-to-market strategy. | W16 | 987 | +44% | +54% | 45 | $251M | Series D$100M, Aug 2023 |
Southeast Asia’s e-commerce logistics and enablement platform | W19 | 981 | 0% | +2% | 0 | $132M | Series C$43.7M, Apr 2022 |
The agentic operating system for legal work | W24 | 980 | +81% | +321% | 123 | $866M | Series D$50M, Apr 2026 |
The 401(k) for small and medium-sized businesses. | S15 | 930 | +12% | +20% | 36 | $915M | Undisclosed round$100M, Oct 2025 |
A developer-friendly and enterprise-grade search API. | W14 | 923 | +9% | +10% | 19 | $334M | Series D$150M, Jul 2021 |
We train AI engineers and connect them with companies. | S20 | 877 | +1% | +2% | 0 | $11.8M | Series A$10M, May 2022 |
AI-powered contract management | S15 | 868 | +3% | +15% | 1 | $334M | Series E$150M, Jan 2022 |
Indonesia's #1 ATS & Job Portal to match top talents & companies | W22 | 838 | −8% | −13% | 0 | Pre-seedMar 2022 | |
Unlocking the power of biotech with modern software for modern science | S12 | 813 | +3% | +3% | 4 | $412M | Series F$100M, Nov 2021 |
Mixpanel is event analytics for builders that need answers. | S09 | 771 | +18% | +43% | 26 | $277M | Series C$200M, Nov 2021 |
All-in-one app for internal communication and HR | W22 | 752 | +22% | +79% | 1 | $77.5M | Series A$77.5M, Feb 2026 |
The leading Composable CDP and AI Decisioning platform | S19 | 658 | +14% | +51% | 52 | $332M | Series D$150M, Apr 2026 |
AI-powered Language Operations platform | W14Acquired | 655 | −1% | −5% | 0 | $112M | Undisclosed round$21M, Dec 2023 |
Helloverify is a background screening platform (Checkr for India). | W18 | 641 | +9% | +12% | YC | $120K | Series A$120K, Mar 2019 |
Bluecrew is a web based staffing agency. | S15Acquired | 620 | +4% | +10% | 0 | $3.2M | Undisclosed round$2.5M, Jan 2017 |
A learning platform that enables you to train your staff or customers. | S15 | 581 | −4% | −10% | YC | $402M | Undisclosed round$30M, May 2023 |
All-in-one recruiting platform that empowers hiring excellence in… | W19 | 580 | +31% | +73% | 56 | $120M | Series D$50M, Jul 2025 |
Customer communications hub for building strong relationships | S14 | 579 | +6% | +13% | 4 | $204M | Series D$65M, Jun 2022 |
The cloud-native, operational database built for speed and scale. | W11 | 565 | +3% | +2% | 14 | $464M | Series F$30M, Oct 2022 |
Logistic Management System for E-commerce & Retail in Mexico. | S18 | 534 | +2% | +8% | 36 | $27M | Series B$20M, Aug 2022 |
Turning company knowledge into expert teams | W15 | 517 | +1% | +3% | 11 | $78.4M | Series B$62M, Dec 2021 |
Veriff is a global AI-native identity platform building trust online | W18 | 514 | −6% | −1% | 5 | $192M | Series C$100M, Jan 2022 |
Talent engagement platform | S17Acquired | 507 | 0% | +7% | 0 | ||
Build in a weekend. Scale to millions. | S20 | 484 | +38% | +106% | 0 | $1.2B | Series F$150M, Oct 2026 |
TRM is building a safer world for billions of people. | S19 | 481 | +14% | +36% | 67 | $220M | Series C$70M, Sep 2026 |
The easiest way to create a beautiful, mobile optimized website. | W13 | 468 | 0% | −1% | 1 | $17.5M | Series A$10M, Aug 2018 |
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
3,235 Y Combinator companies are in B2B; 2,282 are active.
373 companies posted roles in the last 60 days, led by GitLab (230 roles), Rippling (192 roles) and Deel (144 roles). 829 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Mundo AI (+300%), Broccoli AI (+254%) and InstaAgent (+233%).
Largest latest rounds in the last 12 months, after their YC batch: Replit ($400M), Exa ($250M) and Flock Safety ($200M).