Get an API keyGet an API key14 Y Combinator companies based in Waterloo, with team size, growth, open roles and funding.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
AlchemyS14| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
Nanotechnology-enabled coatings for automotive and defence sectors | S14 | 33 | +6% | +32% | 0 | $7.9M | Grant$4.3M, Jan 2026 |
 Skin patches for generic drug delivery. | W18 | 7 | −36% | −36% | 0 | $2.2M | Undisclosed round$2.2M, Jan 2021 |
 Smart hardware for injury recovery.
| S18Inactive | 6 | 0% | 0% | 0 | $139K | YC investment$120K, Aug 2018 |
 Self contained solar-powered AI inference modules: the NanoDC | F26 | 5 | 0 | Pre-seed (before YC)May 2026 | |||
 Long-range drone network for world data collection | W27 | 4 | 0 | ||||
 API for shared embeddable web browsers | W22 | 2 | 0 | Pre-seedMar 2022 | |||
 Deep Meditate is an app that helps you de-stress, sleep, and… | W20 | 2 | 0 | $150K | YC investment$150K, Mar 2020 | ||
 Intelline makes the world's most efficient fuel agnostic engines for… | W19 | 2 | YC | $203K | YC investment$125K, Aug 2020 | ||
 Snake-like robots for maintenance inside machinery. | W27 | 1 | 0 | ||||
 The future of package delivery. We are building a network of… | S12Acquired | 1 | 0 | $1M | Convertible note$1M, Aug 2012 | ||
 Firmware simulation for AI agents | F26 | YC | |||||
 We make a urine test that helps women get pregnant. | S19Inactive | ||||||
 Building the first practical, integrated quantum computer. | W19Inactive | ||||||
 Digital Currency Market Making | S14Inactive | 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
14 Y Combinator companies are based in Waterloo; 9 are active.
We found no job postings for these companies in the last 60 days. 2 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Alchemy (+6%).
No reported rounds after their YC batch in the last 12 months.