12 Y Combinator companies with a founder who worked at Lehman Brothers 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 |
|---|---|---|---|---|---|---|---|
Platform for the greatest products from the past, present and future. | W11 | 926 | −5% | −6% | 25 | $493M | Undisclosed round$195M, Apr 2022 |
AI-powered contract management | S15 | 868 | +3% | +15% | 1 | $334M | Series E$150M, Jan 2022 |
API-first stock and crypto brokerage platform | W19 | 525 | +20% | +47% | 46 | $764M | Debt$135M, Jul 2026 |
Agile commission software to design, deploy & adapt commission plans. | W18 | 284 | +6% | +12% | 2 | $165M | Series C$100M, Jan 2022 |
Crypto-currency trading platform. | S14 | 95 | +3% | +3% | 0 | $23.1M | Series B$23M, Mar 2025 |
We make vanpool simple. | W16 | 36 | +24% | +38% | 0 | Series ANov 2019 | |
Jenfi provides revenue-based financing for digital businesses in Asia | W20 | 31 | 0 | $43.7M | Debt$2.5M, Aug 2026 | ||
Build Backends. Fast. | S20Inactive | 21 | −5% | −25% | 0 | $6M | Seed$6M, Oct 2025 |
AI to curate your baby photos | W18 | 9 | 0% | 0% | 0 | $1.1M | Seed$1M, Apr 2018 |
A tech-enabled commercial mortgage broker. hypcloud allows property… | S18Acquired | 4 | −20% | 0 | $2.8M | Seed$2.7M, Jun 2019 | |
Safe & Secure Cash Management for Businesses | W19Acquired | 1 | 0 | SeedMar 2019 | |||
Natural Language for Developers --Wit is an API that makes it easy… | W14Acquired | 1 | 0 | $3.1M | Seed$3M, Oct 2014 |
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 Lehman Brothers; 8 are active.
4 companies posted roles in the last 60 days, led by Alpaca (46 roles), GOAT Group (25 roles) and CaptivateIQ (2 roles). 4 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): MagicBus (+24%), Alpaca (+20%) and CaptivateIQ (+6%).
No reported rounds after their YC batch in the last 12 months.