87 Y Combinator companies with a founder who worked at IBM 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 |
|---|---|---|---|---|---|---|---|
Change the world to value skills over pedigree | S11 | 2,231 | +4% | +14% | 3 | $103M | Series D$60M, Mar 2022 |
Consumer fintech for Indonesia | S18 | 939 | +2% | +15% | 23 | $515M | Series C$270M, Aug 2026 |
All-in-one recruiting platform that empowers hiring excellence in… | W19 | 580 | +31% | +73% | 56 | $120M | Series D$50M, Jul 2025 |
Online pets supplies for Latin America with over 4000 products & 20… | S19 | 393 | +4% | +2% | 0 | $65M | Secondary$48M, May 2023 |
AI employees that take on real work, starting with sales | W24 | 342 | +75% | +4,786% | 2 | $46.1M | Series A$25M, Apr 2025 |
Self-Driving Customer Care | W16 | 310 | +16% | +34% | 14 | $217M | Series C$110M, Apr 2026 |
Building the next generation AI creative studio | W21 | 94 | −13% | −38% | YC | $154M | Seed$84M, Jul 2025 |
AI-native on-call and incident response carefully crafted to help… | S21 | 93 | +22% | +27% | 1 | $15.2M | Series A$12M, Aug 2023 |
Modern user-focused observability built on OpenTelemetry | S19Acquired | 93 | −28% | −26% | 0 | $77M | Undisclosed round$20M, Jul 2023 |
Flexible On-Demand Storage Space for Household, SMEs & Travellers. | S21 | 85 | +12% | +20% | 0 | $630K | Seed$505K, Dec 2021 |
Staff management software for retail, manufacturing and hospitality | S19Inactive | 66 | +8% | +27% | 0 | $230K | YC investment$150K, Aug 2019 |
Platform for unique products produced on-demand at mass-scale | S17Acquired | 55 | −5% | −7% | 0 | $5.5M | Non-equity support$4.2M, Sep 2022 |
The one-stop-shop for auto-parts in Mexico. | W21 | 53 | +43% | +66% | 0 | $5.5M | Seed$3M, Jan 2023 |
Online marketplace for team retreat venues | W22 | 51 | +46% | +65% | 1 | $3.2M | Seed$2.2M, Sep 2024 |
quantum-accelerated AI servers | X25 | 48 | +50% | +118% | 8 | $139M | Series A$105M, Mar 2026 |
Sustainable period care. | S16 | 44 | +2% | 0 | $7.7M | Undisclosed round$3.6M, Apr 2020 | |
The fastest way to ship airtight AI | S21 | 33 | +3% | +43% | 0 | $19.3M | Series A$14.5M, May 2025 |
Building a compensation graph to help companies optimise people spend | S22 | 31 | −3% | −3% | 0 | $500K | YC investment$500K, Sep 2022 |
We teach UX/UI design and then help people get great jobs. | W22 | 31 | −3% | −14% | 0 | SeedApr 2022 | |
Validated mental health support in your pocket, anytime. | W24 | 26 | +30% | +53% | YC | SeedMar 2024 | |
LATAM’s largest stablecoin FX and liquidity provider | S22 | 24 | +4% | +50% | 0 | SeedJun 2023 | |
Saving OPS from SLOPS. Jestor builds internal systems that last. | S21 | 23 | +10% | +44% | 0 | $345K | YC investment$345K, Aug 2021 |
Code review for DevOps tasks | W21 | 23 | +10% | +44% | 0 | SeedOct 2025 | |
Education, Employment, Loyalty verification. Global & Compliant. | W21 | 21 | −12% | −19% | 0 | ||
AI for Government Contractors | W23 | 20 | +11% | +33% | 2 | $2.5M | Seed$2.5M, Mar 2025 |
Predictive analytics and clinical pathways for hospitals | S11 | 20 | 0% | +11% | 0 | $2M | Seed$2M, Jun 2012 |
Real-time Nielsen ratings for Brands.Accelerate marketing and product… | W15 | 19 | −5% | −5% | 0 | SeedMar 2015 | |
Tools for AI agents to run marketing for the world's biggest… | W24 | 18 | +29% | +125% | YC | $500K | YC investment$500K, Apr 2024 |
US based USD accounts for non-US residents | W22 | 17 | +6% | −11% | 0 | $17.3M | Seed$5M, Jun 2024 |
The Waymo of Personalized demos | F25 | 16 | +167% | YC | SeedDec 2025 | ||
AI voice and texting agents | W25 | 16 | +7% | +60% | 1 | $5.2M | Seed$4.7M, Mar 2025 |
The intelligence and execution layer for agentic B2B card payments. | S22 | 14 | 0% | +17% | 0 | SeedJan 2023 | |
Fully autonomous defense solutions for the global edge. | W22 | 14 | +40% | +40% | 0 | $3.3M | Seed$2.2M, Oct 2023 |
Next-generation, modular electric vehicles | W22 | 13 | −7% | −13% | YC | $2.2M | Equity crowdfunding$892K, Sep 2026 |
Accelerate development by simulating production conditions with real… | S20 | 12 | −20% | −20% | 0 | $12.8M | Seed$9M, Mar 2023 |
Intelligence for Automotive Operations | W26 | 11 | YC | $500K | YC investment$500K, Mar 2026 | ||
AI workforce for property management | W23 | 11 | +83% | +120% | YC | $500K | YC investment$500K, Apr 2023 |
Plena is the AI operating system for specialty medical practices | X26 | 10 | +67% | +67% | YC | $500K | YC investment$500K, Jun 2026 |
AI for Pharma Intelligence | W24 | 10 | −17% | −9% | 3 | $11.5M | Seed$5.5M, Jul 2025 |
Automated AI data integrations for roll-ups | S24 | 8 | +60% | +60% | YC | $500K | YC investment$500K, Jan 2026 |
Freight bill audits, AP, AR automation for freight brokers with… | S24 | 8 | +33% | +33% | YC | $500K | YC investment$500K, Feb 2025 |
PaaS-like experience with the power of Kubernetes, on your cloud | W23 | 8 | −11% | +14% | 0 | $500K | YC investment$500K, Apr 2023 |
Agentic Payments for APIs | W26 | 6 | YC | $4.8M | Seed$4.3M, Jun 2026 | ||
Protect and Grow Long-tail Revenue | W25 | 6 | 0% | −25% | 0 | $500K | YC investment$500K, Mar 2025 |
Collaborative workspace for internal tools and agents | W23 | 6 | 0 | $500K | YC investment$500K, Apr 2023 | ||
Chartio is changing how companies work by building the best… | S10Acquired | 6 | 0% | 0% | 0 | $6.8M | Undisclosed round$2.2M, Jan 2014 |
Making Defense Manufacturing Faster and Cheaper | S26 | 5 | YC | ||||
Submarine drones for defense | X26 | 5 | 0 | $500K | YC investment$500K, Jun 2026 | ||
A Foundation Model for Microbial Communities. | F25 | 5 | 0 | $500K | YC investment$500K, Dec 2025 | ||
Banking designed for Indian couples. | S22 | 5 | 0% | 0% | 0 |
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
87 Y Combinator companies have a founder who worked at IBM; 66 are active.
14 companies posted roles in the last 60 days, led by Ajaib (23 roles), Netomi (14 roles) and Sygaldry Technologies (8 roles). 23 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Karumi (+167%), Haven (+83%) and Artisan (+75%).
Largest latest rounds in the last 12 months, after their YC batch: Ajaib ($270M), Netomi ($110M) and Sygaldry Technologies ($105M).