63 Y Combinator companies with a founder who worked at Bain 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 |
|---|---|---|---|---|---|---|---|
Modernizing the hospitality tech stack. | S18 | 401 | +7% | +35% | 33 | $177M | Series D$80M, Jun 2025 |
Creating workplace wellbeing. | S16Acquired | 195 | +8% | +17% | 0 | $70M | Series A$50M, May 2019 |
Bridging a world of consumer-permissioned credit data | S16 | 131 | +11% | +19% | YC | $159M | Series D$35M, Oct 2025 |
One source of truth for financial data. | S21 | 107 | +18% | +45% | 1 | $46.1M | Series B$29.2M, Sep 2025 |
We deliver personalized medicine for neurodegenerative patients | S20 | 105 | +4% | +14% | 1 | $78.2M | Series A$25M, Nov 2024 |
A mobile app. It allows employees to get paid their salary on-demand. | S21 | 84 | +5% | −1% | 1 | $64M | Undisclosed round$21.7M, Jun 2025 |
autarc is the agentic OS for energy installers. | S24 | 75 | +56% | +92% | 1 | $9.4M | Undisclosed round$8.8M, Dec 2024 |
Data centers in space | S24 | 66 | +57% | +128% | YC | $444M | Series A$250M, Aug 2026 |
Voice AI to enable India's next billion | F25 | 62 | +59% | +377% | YC | $6.4M | Seed$6.3M, Jan 2026 |
1:1 ADHD coaching, 5-10X More affordable than alternatives | S21 | 57 | −5% | YC | $3.6M | Seed$25K, Sep 2024 | |
A payment network connecting nonprofits to the $326B in DAFs | S22 | 50 | +22% | +43% | 6 | $15M | Series A$11M, Aug 2024 |
Multimodal AI Platform for Modality Agnostic Drug Discovery™ | W19 | 50 | −2% | −6% | 0 | $26.6M | Undisclosed round$550K, Oct 2024 |
AI-native ATS/CRM for recruiting firms | W25 | 47 | +96% | +327% | 2 | $24.2M | Series A$21M, Sep 2026 |
We sell health insurance to small businesses 100% online. | W13 | 45 | −2% | −4% | 2 | $8.4M | Private equity$5.9M, Jan 2023 |
Data Development for Advanced AI | S24Acquired | 44 | −24% | −61% | 0 | $500K | YC investment$500K, Sep 2024 |
AI-native office leasing broker | S24 | 42 | +8% | +14% | YC | $6.1M | Seed$6.1M, Feb 2025 |
Instant lab tests on your smartphone | S21 | 42 | −2% | −12% | YC | $2.4M | Seed$2M, Feb 2024 |
GTM AI that books you 5-8 meetings/week | S22 | 36 | −14% | −3% | YC | $3.8M | Seed$3.8M, Oct 2022 |
Document and spreadsheet automation for accountants | S22 | 31 | +3% | −9% | 0 | $600K | YC investment$500K, Jul 2022 |
The unbiased AI and data layer for skin health. | W21 | 31 | +11% | +7% | 0 | $965K | Pre-seed$840K, Dec 2021 |
Healthcare Price Transparency APIs and Data Products | W22 | 29 | +21% | +81% | YC | $10.2M | Private equity$5.6M, Aug 2026 |
Seamless Fiat Payments for Web3 | W22 | 28 | +4% | +22% | 0 | $4.5M | Seed$4.5M, Jun 2023 |
One-click checkout and AI sales assistant for LatAm. | W22 | 25 | −4% | +47% | 0 | $4.4M | Seed$3.6M, Jun 2023 |
Financial health focused micro-lender in Mexico | W22 | 25 | +4% | −14% | YC | ||
AI quote & order processing for technical distributors & manufacturers | W25 | 24 | +14% | +4% | YC | $2.6M | Seed$2.1M, Dec 2025 |
Building AI employees for car dealers | F24 | 23 | +44% | +77% | 0 | $1.5M | Pre-seed$1.5M, Dec 2024 |
Access up to $2,000 of your wage in advance | W22 | 22 | +16% | +16% | 1 | $500K | YC investment$500K, Mar 2022 |
AI-powered sales coaching | W19 | 22 | 0% | +5% | 0 | $10.6M | Seed$8M, Sep 2020 |
Enabling birth & postpartum doulas to easily accept insurance. | W23 | 21 | +50% | +75% | 0 | SeedJan 2026 | |
Uber for Kids | W17Inactive | 20 | 0% | +5% | 0 | $270K | Undisclosed round$150K, Jan 2021 |
Using generative AI to call insurance for healthcare clinics | S23 | 16 | +7% | +14% | YC | $500K | YC investment$500K, Sep 2023 |
Compound compliance: the central hub for meeting SEC obligations | S21Acquired | 11 | 0% | 0% | 0 | Non-equity supportMar 2023 | |
Automated AI data integrations for roll-ups | S24 | 8 | +60% | +60% | YC | $500K | YC investment$500K, Jan 2026 |
CrowdMed harnesses the wisdom of crowds to solve difficult medical… | W13Inactive | 8 | 0% | 0% | 0 | $3.5M | Equity crowdfunding$403K, Apr 2017 |
Automation System for Global Aviation | F24Acquired | 7 | +17% | −30% | 0 | $500K | YC investment$500K, Dec 2024 |
Gen-AI Designed Enzymes for Pharmaceutical Innovation | W23 | 7 | +17% | +17% | 0 | $500K | YC investment$500K, Apr 2023 |
AI system design tools for dev teams | W24 | 6 | 0 | $500K | Seed$500K, Jan 2026 | ||
AI agents that grow revenue for home services businesses | W26 | 5 | YC | $500K | YC investment$500K, Apr 2026 | ||
AI-enabled Corporate Cards and Invoice Processing for Real Estate | S25 | 5 | YC | $500K | YC investment$500K, Sep 2025 | ||
Multi-document processing for your risk teams, AI agents, pipelines | X25 | 5 | −29% | YC | $1.6M | Pre-seed$1.6M, Apr 2025 | |
AI formulas and document support for Microsoft Excel | F24 | 5 | 0 | $500K | YC investment$500K, Dec 2024 | ||
AI Agents for corporate real estate teams | W23 | 5 | −17% | −37% | YC | $500K | YC investment$500K, May 2023 |
We buy and grow D2C brands in LatAm | S20Acquired | 5 | 0 | $12M | Series A$12M, Jun 2022 | ||
Helps enterprises train college CS students on essential job skills | W20Inactive | 5 | 0% | 0% | 0 | $1.6M | Non-equity support$150K, Jul 2023 |
Canonical permalinks for songs. | S13Acquired | 5 | 0% | 0% | 0 | $2M | Seed$2M, Jul 2014 |
The planning layer for teams that build with coding agents | F25 | 4 | YC | $500K | YC investment$500K, Dec 2025 | ||
AI + human review to solve data cleaning - accessible via API or Excel | X25 | 4 | 0 | $500K | YC investment$500K, Jan 2026 | ||
Tranch is the invoice to payments platform for enterprises. | S22Acquired | 4 | −20% | 0 | $104M | Seed$1K, May 2024 | |
Make software self-healing | X26 | 3 | 0 | $500K | YC investment$500K, Jun 2026 | ||
Shop and pay in installments anywhere | S22Inactive | 3 | 0 | $8M | Undisclosed round$8M, Oct 2023 |
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
63 Y Combinator companies have a founder who worked at Bain; 45 are active.
11 companies posted roles in the last 60 days, led by Canary Technologies (33 roles), Faire (17 roles) and Nourish (7 roles). 25 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Spott (+96%), Bolna AI (+59%) and Starcloud (+57%).
Largest latest rounds in the last 12 months, after their YC batch: Starcloud ($250M), Nourish ($100M) and Spott ($21M).