Get an API keyGet an API key12 Y Combinator companies with a founder who worked at Wayfair before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
Topline ProW21
Yummy1
SiraS25Yummy+10%Topline Pro+7%SiraS25| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
The everything app for LATAM | S21 | 1,132 | +10% | +27% | 1 | $71M | Series A$47M, Jun 2022 |
Generative AI powered Shopify for home service professionals | W21 | 168 | +7% | +27% | 5 | $44M | Series B$27M, Aug 2025 |
AI Native Rippling for Deskless Workers | S25 | 10 | +67% | YC | $3.9M | Seed$3.4M, Nov 2025 | |
 coaching agents for athletes | F24 | 10 | 0% | −9% | 0 | ||
 Building Shein of Home: tech-driven, design-mfr Home Lifestyle Brand | S21 | 10 | −29% | −33% | 0 | $125K | YC investment$125K, Jul 2022 |
 AI coworkers for fraud and compliance teams. | S25 | 7 | +17% | YC | $4M | Seed$4M, Sep 2025 | |
 Make more $$$ with SEO and AEO | S23 | 7 | +17% | +40% | 0 | ||
 AI Property Manager for Airbnb & Short-Term Rental Hosts | S24 | 6 | YC | Pre-seed (before YC)May 2024 | |||
 AI insights for consumer products | W24 | 4 | YC | ||||
 Decision infrastructure for investment firms | W23Acquired | 4 | −64% | −56% | 0 | Pre-seedJan 2023 | |
 Executable healthcare contracts | S24 | 2 | −67% | 0 | $500K | YC investment$500K, Jan 2026 | |
 AI to track and analyze public policy | W21 | 2 | 0 | Pre-seedMar 2021 |
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
12 Y Combinator companies have a founder who worked at Wayfair; 11 are active.
2 companies posted roles in the last 60 days, led by Topline Pro (5 roles) and Yummy (1 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Sira (+67%), Yummy (+10%) and Topline Pro (+7%).
Largest latest rounds in the last 12 months, after their YC batch: Sira ($3.4M).