26 Y Combinator companies based in Denver, with team size, growth, open roles and funding.
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 |
|---|---|---|---|---|---|---|---|
Economically and environmentally sustainable supersonic travel | W16 | 365 | +10% | +22% | 14 | $732M | Undisclosed round$300M, Dec 2025 |
Full-stack VLEO satellite missions | W21 | 78 | +13% | +20% | 6 | $103M | Series A$35M, Jan 2024 |
Datadog for Space | S22 | 64 | +19% | +83% | 15 | $26.8M | Series A$18M, Nov 2025 |
The lightest electric aircraft motors in the world. | W21 | 57 | +4% | +21% | 0 | $24.6M | Series A$20M, Aug 2024 |
Blood Test for Early Detection of Ovarian Cancer | S21 | 56 | +2% | +2% | 0 | $24.5M | Grant$17M, May 2026 |
The financial foundation for every real estate development decision | S17 | 47 | +7% | 0 | $9.9M | Debt$1.8M, May 2023 | |
The all-in-one solution for small businesses and self-employed. | W16Acquired | 44 | +5% | −28% | 0 | $120K | YC investment$120K, Mar 2016 |
The tolling industry’s prime tech infrastructure | S20 | 34 | +13% | +17% | 4 | Undisclosed roundDec 2024 | |
Shopify for Homebuilders | S23 | 15 | +15% | +50% | 0 | Pre-seedJun 2023 | |
Develop your CI/CD pipelines as code and run them anywhere | W19 | 15 | 0% | −6% | 0 | $30M | Series A$20M, Mar 2022 |
Vanta for carbon compliance | S24 | 14 | +8% | +40% | YC | $500K | YC investment$500K, Oct 2024 |
Cloud Development Environments with one click | W19 | 13 | −13% | −19% | YC | $18.1M | Series A$15M, Jan 2022 |
Arpeggio Bio develops drugs targeting transcription factors using AI… | S19 | 11 | −31% | −8% | 0 | ||
A platform to plan, book and manage global and group travel. | S12 | 10 | 0% | +43% | 0 | $852K | Seed (before YC)$800K, May 2012 |
Turnkey co-ownership & management of properties | W22Inactive | 9 | 0 | $500K | YC investment$500K, Mar 2022 | ||
Unified Hardware Control and Data Processing Software | S24 | 5 | 0% | 0% | 0 | $500K | YC investment$500K, Sep 2024 |
Affordable and verified direct air carbon capture and storage | S21Inactive | 5 | −17% | −58% | 0 | $10.9M | Grant$40K, Jun 2024 |
BoardRE is a new type of mortgage company that upgrades any offer… | W19Acquired | 4 | 0 | $92.1M | Debt$78M, Jun 2021 | ||
Reliable infrastructure to build, deploy and manage real-world robots. | S26 | 3 | 0 | ||||
Realistic virtual video studio to record and stream from your browser | W21 | 3 | 0 | $125K | YC investment$125K, Mar 2021 | ||
Kill the drone, keep the jet. Reusable unmanned interceptors. | F26 | 2 | 0 | ||||
Let your camera understand the world | F24 | 1 | 0 | $500K | YC investment$500K, Dec 2024 | ||
Zero-Knowledge security without seed phrases or backup codes | W22 | 1 | 0 | $1M | Pre-seed$1M, Jun 2022 | ||
Biospecimen logistics & operations layer to accelerate drug dev | F25 | 0 | |||||
Join tennis league and play competitively with people nearby | W17Inactive | ||||||
Photo library. | S11Inactive | 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
26 Y Combinator companies are based in Denver; 20 are active.
4 companies posted roles in the last 60 days, led by Quindar (15 roles), Boom (14 roles) and Albedo (6 roles). 5 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Quindar (+19%), Foundation (+15%) and Blissway (+13%).
Largest latest rounds in the last 12 months, after their YC batch: Boom ($300M) and Quindar ($18M).