633 Y Combinator companies in Engineering, Product and Design, 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 |
|---|---|---|---|---|---|---|---|
A complete DevOps platform delivered as a single application. | W15Public | 3,477 | +1% | +7% | 230 | $414M | Post-IPO equity$268M, Feb 2022 |
The first public safety operating system that eliminates crime. | S17 | 1,446 | +1% | +6% | 32 | $1.2B | Series I$200M, Apr 2026 |
A developer-friendly and enterprise-grade search API. | W14 | 923 | +9% | +10% | 19 | $334M | Series D$150M, Jul 2021 |
Veriff is a global AI-native identity platform building trust online | W18 | 514 | −6% | −1% | 5 | $192M | Series C$100M, Jan 2022 |
Building foundational AI for speech transcription and understanding. | W16 | 387 | +23% | +64% | 42 | $216M | Series C$130M, Aug 2026 |
Marketplace for graphic design assets | W10Acquired | 341 | −2% | −1% | 0 | $11.7M | Series A$7M, Oct 2017 |
The OS for Embedded Telecom | W21 | 318 | +20% | +51% | YC | $97M | Series B$73M, Dec 2024 |
The world’s largest omnichannel communications platform | S16 | 302 | −7% | −11% | 0 | $1.6B | Debt$450M, Sep 2026 |
Human and AI design review for hardware | S19 | 281 | +31% | +71% | 2 | $134M | Debt$728K, Mar 2026 |
The AI agent that doesn’t just support, it delights. | W16 | 257 | −2% | −6% | 1 | $221M | Undisclosed round$100M, Jan 2022 |
High Performance Computing Built for the Cloud | W12 | 249 | +5% | +7% | 1 | $273M | Grant$115M, Jul 2026 |
Shogun empowers brands to create exceptional ecommerce experience. | W18 | 241 | +3% | +6% | 0 | $115M | Series C$67.5M, Jun 2021 |
Engineering and Design that Fuels Startup Success | W14 | 198 | −7% | −12% | 0 | ||
Agentic Observability Platform for Mobile | W16 | 194 | −8% | −29% | 0 | $53.1M | Series B$46M, May 2022 |
Email API service. | W11Acquired | 188 | −2% | −3% | 0 | $51.1M | Private equity$50M, Feb 2017 |
Build and grow your app business | S18 | 185 | +13% | +41% | 9 | $119M | Series C$50M, May 2025 |
The embedded integration platform for SaaS apps. | W20 | 168 | +8% | +21% | YC | $21.2M | Undisclosed round$5.5M, Oct 2024 |
Finch is the Employment Data Platform | S20 | 157 | +3% | +10% | 1 | $62.1M | Undisclosed round$3.5M, Jun 2023 |
🖼️ Give your software the sense of sight. | S20 | 154 | +15% | +57% | 7 | $62.2M | Series B$40M, Nov 2024 |
Application Development Platform (Native Mobile + Web Apps) | W21 | 151 | −6% | −15% | YC | $28M | Series A$25.5M, Jan 2024 |
Voice AI for developers. | W21 | 150 | +50% | +114% | 4 | $70.6M | Series B$50M, May 2026 |
AI Support Agent for Enterprises. | S23 | 128 | +24% | +156% | 3 | $64.6M | Series A$61M, Aug 2025 |
AI-native operating system for home service businesses | W22 | 124 | +254% | +675% | 10 | $23.7M | Undisclosed round$23.7M, Feb 2026 |
Open-source API & UI test automation | W22 | 117 | +4% | +14% | 0 | Pre-seedMar 2022 | |
no-code end-to-end testing that integrates with any CI/CD pipeline | S12 | 112 | −4% | −10% | 0 | $41.2M | Series B$25M, Jan 2018 |
API Platform for Banking Integrations (Plaid for India and APAC) | S20 | 106 | +1% | +5% | 0 | $8.2M | Series B$3.5M, Jun 2025 |
The complete agentic document platform | W24 | 99 | +60% | +175% | 14 | $108M | Series B$75M, Oct 2025 |
Glide turns spreadsheets into beautiful, intelligent apps. | W19 | 95 | −9% | −12% | 1 | $23.8M | Series A$20M, Apr 2022 |
Modern user-focused observability built on OpenTelemetry | S19Acquired | 93 | −28% | −26% | 0 | $77M | Undisclosed round$20M, Jul 2023 |
Parse is the easiest way to build apps. | S11Acquired | 93 | 0% | 0% | 0 | $7M | Pre-seed$5.5M, Oct 2022 |
Spur is the validation infrastructure enterprises use to ship at the… | S24 | 92 | +19% | +74% | 1 | $5M | Seed$4.5M, Apr 2025 |
Build and manage distributed teams | S15Acquired | 89 | −1% | −6% | 0 | $32.6M | Series B$20M, Aug 2017 |
The intelligent documentation platform | W22 | 85 | +29% | +81% | 12 | $66.7M | Series B$45M, Apr 2026 |
Email for developers | W23 | 79 | +7% | +46% | 5 | $21.5M | Series A$18M, Dec 2024 |
Design system platform joins developers and designers together | W19 | 79 | +8% | +20% | 0 | $25.8M | Series A$9.2M, Sep 2025 |
Beautiful, personalized, interactive developer hubs | W15 | 77 | −7% | −5% | 2 | $10.1M | Series A$9M, Aug 2019 |
Sell anything | S21 | 74 | −7% | −1% | 1 | $4.2M | Seed$4.2M, Feb 2023 |
Frontend Platform for eCommerce | W21 | 71 | −1% | −8% | 0 | $39M | Series A$20M, Mar 2023 |
Luminai is the AI platform for Health System Operations. | S20 | 69 | +25% | +50% | 4 | $57.8M | Series B$38M, Apr 2026 |
AI Agents for collections | S24 | 68 | +28% | +55% | YC | $500K | YC investment$500K, Jan 2025 |
Basilica is an API that embeds high-dimensional data like images and… | W19Inactive | 67 | +5% | 0 | Undisclosed roundJan 2021 | ||
Observability and Governance for AI-Generated Python scripts. | W22 | 66 | +12% | +47% | 0 | $15M | Series A$12M, Sep 2025 |
Superb AI provides end-to-end computer vision MLOps platform | W19 | 64 | +19% | 0 | $47.9M | Grant$402K, May 2026 | |
AI-powered Deepfake Detection | S21 | 63 | +5% | 0 | $2.8M | Seed$2.8M, Aug 2021 | |
The Javascript framework for building AI agents, from the Gatsby devs | W25 | 62 | +19% | +44% | 0 | $35M | Series A$22M, Apr 2026 |
AI Applied Research | W24 | 62 | −2% | +5% | 0 | $17.5M | Series A$17M, Jun 2025 |
Instantly offer SDKs and API Docs | W23Acquired | 62 | +3% | −2% | 0 | $22.3M | Series A$9M, Apr 2025 |
Software delivery built for machine scale. | W23 | 61 | +17% | 0 | $15.9M | Series A$10M, Mar 2026 | |
Deliver on the Promise of Design | S15 | 61 | −21% | 0 | $1.4M | Seed$1.2M, Jul 2016 | |
User research on autopilot. | W21 | 59 | −6% | −11% | 4 | $15.5M | Series A$13M, Nov 2025 |
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
633 Y Combinator companies are in Engineering, Product and Design; 431 are active.
57 companies posted roles in the last 60 days, led by GitLab (230 roles), Deepgram (42 roles) and Flock Safety (32 roles). 139 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Broccoli AI (+254%), Wafer (+200%) and Shadeform (+110%).
Largest latest rounds in the last 12 months, after their YC batch: Replit ($400M), Flock Safety ($200M) and Deepgram ($130M).