The 43 YC W21 companies whose team shrank the most in the last 12 months (active companies that had 20+ people a year ago).
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 |
|---|---|---|---|---|---|---|---|
| 1 | AI Powered Animal Diagnostics | 10 | −23% | −58% | 0 | $4M | Seed$4M, Apr 2021 |
| 2 | Your one-stop shop to eat well in Brazil | 69 | −7% | −56% | 0 | $27.8M | Series A$25M, Mar 2022 |
| 3 | Building the next generation AI creative studio | 94 | −13% | −38% | YC | $154M | Seed$84M, Jul 2025 |
| 4 | Software to run car washes moving to a monthly subscription model | 62 | −9% | −37% | 1 | $35M | Series B$20M, Apr 2023 |
| 5 | The Unified AI-ERP & FP&A Platform | 36 | −40% | −33% | 1 | $20.8M | Series A$13.5M, Sep 2024 |
| 6 | The all-in-one startup operating system | 53 | −15% | −30% | YC | $7M | Convertible note$1.5M, Mar 2024 |
| 7 | Automated user acquisition & selling on WhatsApp for businesses | 50 | −15% | −24% | YC | SeedJan 2024 | |
| 8 | Affirm for general contractors | 18 | −14% | −22% | 0 | SeedJan 2022 | |
| 9 | AI-Native Restaurant POS | 16 | −6% | −20% | 0 | $125K | YC investment$125K, Apr 2021 |
| 10 | The Logistics Operating System for E-commerce in LatAm | 123 | −22% | −20% | 0 | $10M | Undisclosed round$6.1M, Apr 2025 |
| 11 | Design and collaborate in multiple dimensions. | 29 | −17% | −19% | 0 | $25.1M | Series A$10M, Aug 2024 |
| 12 | Education, Employment, Loyalty verification. Global & Compliant. | 21 | −12% | −19% | 0 | ||
| 13 | Software for procurement departments to find suppliers 10x faster | 30 | −14% | −19% | 1 | $2.7M | Seed$2.7M, Aug 2023 |
| 14 | The online language school for Latam, with groups led by an instructor | 216 | −5% | −18% | 0 | $4.4M | Equity crowdfunding$1.5M, Apr 2024 |
| 15 | AI-driven online tech school for busy professionals | 154 | −8% | −18% | YC | $6M | Grant$2.7M, Nov 2024 |
| 16 | Banking for businesses | 37 | −7% | −18% | YC | $3.9M | Seed$3.8M, Jan 2022 |
| 17 | Where restaurants in Africa buy food supplies | 124 | −6% | −16% | 0 | $33.2M | Series A$20M, Sep 2022 |
| 18 | Application Development Platform (Native Mobile + Web Apps) | 151 | −6% | −15% | YC | $28M | Series A$25.5M, Jan 2024 |
| 19 | Fulfillment by Amazon for African merchants | 42 | −11% | −14% | 0 | $1.8M | Seed$1.8M, Oct 2021 |
| 20 | Bringing the joy of cycling to millions of Indians | 18 | −14% | 0 | $125K | YC investment$125K, Jun 2021 | |
| 21 | DreamWorld is a next-gen Minecraft with generative AI building | 49 | 0% | −14% | 0 | SeedMar 2021 | |
| 22 | User research on autopilot. | 59 | −6% | −11% | 4 | $15.5M | Series A$13M, Nov 2025 |
| 23 | Bring Justice to Light | 171 | −14% | −10% | 1 | $63M | Series B$35M, Sep 2023 |
| 24 | Cyble - World’s First Intelligence-Driven, AI-Native Security… | 230 | 0% | −9% | 1 | $44.8M | Series B$6.2M, Nov 2023 |
| 25 | Corporate card & spend management platform for Indian startups | 57 | −2% | −8% | 3 | ||
| 26 | Rocket Mortgage for LatAm. | 57 | −3% | −8% | 0 | $9.6M | Seed$4.5M, Mar 2022 |
| 27 | Frontend Platform for eCommerce | 71 | −1% | −8% | 0 | $39M | Series A$20M, Mar 2023 |
| 28 | Restaurant Solution (E-commerce via WhatsApp + POS + CRM/Marketing) | 73 | −5% | −6% | 0 | $6.1M | Seed$4.6M, May 2022 |
| 29 | All-in-one HR management platform for SMEs | 61 | −6% | −6% | 0 | $7.8M | Series A$6.5M, May 2025 |
| 30 | Embedded lending infrastructure for software companies | 95 | +7% | −6% | 0 | $39.5M | Undisclosed round$15M, May 2025 |
| 31 | India’s first and only marriage super app | 100 | −3% | −6% | YC | $11M | Undisclosed round$10K, Jun 2023 |
| 32 | Affordable insurance for the next billion Indians | 39 | +5% | −5% | 0 | $6.5M | Undisclosed round$3.5M, Jan 2024 |
| 33 | We provide a curated, evidence- based answer to any clinical question. | 41 | −7% | −5% | 0 | $6M | Seed$6M, Dec 2023 |
| 34 | Infrastructure and tools to build and scale blockchain applications. | 110 | +2% | −4% | YC | $102M | Secondary$60M, Jan 2024 |
| 35 | All-in-one real estate marketplace for Latin America | 465 | −6% | −3% | 0 | $44.7M | Undisclosed round$35M, Jan 2022 |
| 36 | Software for medical laboratories and clinics | 60 | −18% | −3% | 0 | $1.3M | Seed$1.3M, Nov 2021 |
| 37 | Software and AI tools for SMBs in the US and Latin America | 270 | −1% | −3% | 0 | $63.8M | Series A$3M, Jun 2022 |
| 38 | AI Document Understanding API | 37 | 0% | −3% | 0 | $23.3M | Undisclosed round$7M, Mar 2023 |
| 39 | Open source alternative to DataDog | 46 | −8% | −2% | 3 | $6.5M | Seed$5.4M, Sep 2023 |
| 40 | We treat women with Polycystic Ovary Syndrome in India | 48 | −2% | 0 | $3.1M | Seed$3M, Jul 2021 | |
| 41 | We're Khatabook / OkCredit for Pakistan | 102 | −1% | −2% | 0 | ||
| 42 | We underwrite and insure house rentals in Latam | 131 | +1% | −2% | 0 | $10M | Series A$5.6M, Nov 2024 |
| 43 | App for independent agents to sell financial products in India | 733 | −1% | YC | $11.6M | Series A$11M, Sep 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
334 companies were in Y Combinator's Winter 2021 batch (W21); 226 are active.
46 companies posted roles in the last 60 days, led by REGENT (30 roles), Shepherd (17 roles) and Codingal (9 roles). 77 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): OpenCode (+200%), Venu AI (+58%) and Vapi (+50%).
Largest latest rounds in the last 12 months, after their YC batch: Stoke Space ($1B), Nourish ($100M) and Ollama ($65M).