258 Y Combinator companies with a founder who worked at Microsoft before.
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 |
|---|---|---|---|---|---|---|---|
One place to run all your HR, IT, and Finance. Globally. | W17 | 7,889 | +5% | +23% | 192 | $2.4B | Series G$450M, May 2025 |
India's only full-stack financial solutions company for businesses. | W15 | 4,038 | −1% | −2% | 17 | $817M | Secondary$75M, May 2022 |
Manage your ledgers and avail Financial Services like Lending on your… | S18 | 893 | +7% | +12% | 0 | $187M | Series C$100M, Aug 2021 |
Inspection software for renewable energy & sustainable infrastructure | W15 | 706 | +2% | +1% | 1 | $174M | Undisclosed round$60M, Mar 2025 |
The cloud-native, operational database built for speed and scale. | W11 | 565 | +3% | +2% | 14 | $464M | Series F$30M, Oct 2022 |
The platform for all your life events. | S16 | 503 | +2% | +8% | YC | $107M | Series B$60M, Nov 2022 |
Lob is the only automation platform that transforms direct mail into… | S13 | 440 | +8% | +14% | 3 | $82.3M | Series C$50M, Feb 2021 |
Global Business Banking for Africa's Ambitious Businesses. | W17 | 423 | +1% | −2% | 0 | $50.7M | Debt$3M, Sep 2026 |
Accounting, Payments & Credit app for 60M micro-businesses in… | S20 | 367 | +14% | +31% | 0 | $80M | Series A$60M, Jun 2021 |
Agentic AI CRM for ecommerce | S20 | 353 | +3% | +8% | 1 | $12.8M | Undisclosed round$10.8M, Apr 2022 |
Marketplace for graphic design assets | W10Acquired | 341 | −2% | −1% | 0 | $11.7M | Series A$7M, Oct 2017 |
The sleep fitness company. | S15 | 282 | +17% | +26% | 16 | $302M | Series D$50M, Mar 2026 |
Nabis is the largest licensed cannabis wholesale platform. | W19 | 264 | +15% | +27% | 6 | $59M | Debt$4M, Jan 2026 |
Private sector Healthcare.gov. | S12 | 255 | +2% | +3% | 2 | $6.6M | Undisclosed round$6.6M, Feb 2017 |
Secure Collaboration for Technical Teams | S12 | 169 | +5% | +8% | 8 | $73.5M | Series B$50M, Jun 2019 |
India's Telemedicine Platform & Online Pharmacy for Dermatology Care | S22 | 162 | +5% | +22% | YC | $3.2M | Seed$2.6M, Sep 2023 |
AI company transforming enterprise physical security to prevent… | W17 | 157 | +1% | +8% | 3 | $72.1M | Undisclosed round$20M, Oct 2023 |
Neema is an app for unbanked workers, which provides a checking… | W17Inactive | 143 | +3% | +13% | 0 | $19.3M | Undisclosed round$17.7M, Dec 2021 |
Self-Checkout using Computer Vision. | W15 | 130 | +8% | +13% | YC | $73.7M | Series B$62.5M, May 2022 |
The AI Command Center for outbound and ABM | S14 | 108 | +5% | +2% | 1 | $22.4M | Series A$20M, Oct 2021 |
We setup Immigrants with a free US Bank Account, Credit Card, SIM… | S19 | 96 | −1% | YC | $2.3M | Undisclosed round$2.3M, Jan 2023 | |
Glide turns spreadsheets into beautiful, intelligent apps. | W19 | 95 | −9% | −12% | 1 | $23.8M | Series A$20M, Apr 2022 |
24/7 pediatric clinic in every family's living room | W18 | 83 | +4% | +9% | 3 | $7.7M | Seed$4M, Jan 2022 |
AI Workforce for the Insurance Industry | W24 | 71 | +42% | +209% | 5 | $30M | Series A$25M, Oct 2025 |
Automating non-emergency calls for 911 centers | S22 | 69 | +30% | +123% | 6 | $14.5M | Series A$14M, Aug 2025 |
We're crowdsourced Gartner so IT executives can learn directly from… | W18Acquired | 69 | +13% | +21% | 0 | $10.6M | Series A$6.5M, Apr 2020 |
Data centers in space | S24 | 66 | +57% | +128% | YC | $444M | Series A$250M, Aug 2026 |
Pulley helps founders and finance teams manage their equity and cap… | W20 | 63 | −43% | −31% | 1 | $50.1M | Series B$40M, Jul 2022 |
AI hiring platform powered by expert recruiters | W25 | 62 | +13% | +130% | 0 | $2.8M | Seed$2.3M, May 2026 |
Payroll, benefits, state compliance & other bullsh*t for startups | S24Acquired | 62 | −2% | −17% | 0 | $9.1M | Seed$8.6M, Aug 2025 |
AI lipsync tool for video content creators | W24 | 61 | +42% | +56% | 0 | $6.4M | Grant$250K, Oct 2024 |
Longevity for the 99%. | W22 | 61 | +11% | +205% | 1 | SeedJan 2023 | |
Build better banking | S17 | 58 | +38% | +32% | 9 | $4M | Undisclosed round$2M, Mar 2022 |
Platform for unique products produced on-demand at mass-scale | S17Acquired | 55 | −5% | −7% | 0 | $5.5M | Non-equity support$4.2M, Sep 2022 |
Real-world training data for frontier AI labs and robotics. | X26 | 53 | +194% | +152% | YC | ||
The multiplayer AI agent builder. Let anyone build, IT controls access | W24 | 51 | +28% | +122% | 8 | $70.1M | Series B$50M, Mar 2026 |
Recover from any outage in 10 minutes or less. | W21 | 51 | +46% | +65% | 0 | $26.2M | Series A$15.9M, Jun 2026 |
The multimodal data lab | W22 | 50 | +52% | +178% | 12 | $4.1M | Seed$4M, Nov 2022 |
Open source alternative to DataDog | W21 | 46 | −8% | −2% | 3 | $6.5M | Seed$5.4M, Sep 2023 |
Financial data layer for AI-powered finance and accounting | S20 | 41 | −11% | −5% | YC | $10.1M | Series A$10M, Apr 2025 |
Subscription service for women's apparel & accessories. | S13Inactive | 41 | 0% | 0% | 0 | $72M | Series C$9.5M, Nov 2017 |
Autonomous medical care | S21 | 40 | +18% | +60% | 15 | $7.6M | Seed$5.6M, Jan 2026 |
Streak transforms Gmail into a powerful CRM | S11 | 40 | +5% | +5% | YC | $1.9M | Seed$1.9M, Oct 2012 |
Turbotax for México and LATAM | S21 | 39 | −5% | 0 | $2.9M | Seed$2.6M, Feb 2022 | |
The freshest data APIs for AI sales, recruiting, & growth products | S23 | 38 | 0% | +3% | 0 | $4.3M | Seed$4.3M, Jan 2024 |
Mobile marketing analytics and infrastructure | S14Acquired | 37 | +3% | +3% | 0 | $2.5M | Seed$2.5M, Jun 2016 |
AI-powered care for seniors with chronic disease | W23 | 35 | +3% | +40% | 6 | $500K | YC investment$500K, Mar 2023 |
Pinduoduo for India | S21Inactive | 35 | 0% | 0% | 0 | $3M | YC investment$125K, Dec 2021 |
MySivi - AI English Speaking Practice App | W22 | 33 | +106% | 0 | SeedNov 2024 | ||
Trust Center platform that scales customer security reviews | S20Acquired | 33 | −13% | −35% | 0 | $53.1M | Series B$33M, Apr 2024 |
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
258 Y Combinator companies have a founder who worked at Microsoft; 180 are active.
37 companies posted roles in the last 60 days, led by Rippling (192 roles), Razorpay (17 roles) and Eight Sleep (16 roles). 78 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Hub (+194%), Amera (+120%) and Shadeform (+110%).
Largest latest rounds in the last 12 months, after their YC batch: Starcloud ($250M), Eight Sleep ($50M) and Gumloop ($50M).