Get an API keyGet an API key15 Y Combinator companies with a founder who worked at Israeli Military Intelligence before.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
BleeS22
Salt Security1
Darrow1BleeS22
Wild Moose+22%
Diversion+4%DarrowW21BleeS22| Company | Batch | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|---|
 The frontpage of the internet. | S05Acquired | 5,169 | +5% | +13% | 0 | $1.3B | Series F$410M, Aug 2021 |
Protects organizations from getting breached through their APIs. | W16 | 208 | +4% | +6% | 1 | $271M | Undisclosed round$140M, Sep 2022 |
Bring Justice to Light | W21 | 171 | −14% | −10% | 1 | $63M | Series B$35M, Sep 2023 |
 Open-source data observability for data teams | W22 | 42 | −2% | +14% | 0 | $8.5M | Seed$8M, Jan 2023 |
Smart, fast, and collaborative compliance reviews | S22 | 38 | +36% | +124% | 5 | $27.5M | Series A$7M, Sep 2026 |
A scalable, cloud-native Perforce and Git alternative | S22 | 24 | +4% | +4% | 0 | $11.9M | Seed$4.5M, May 2025 |
Automating root cause analysis with generative AI | W23 | 11 | +22% | +57% | 0 | $7.5M | Seed$7M, Oct 2025 |
 Helping developers scale their applications with ease. | S12Inactive | 11 | 0% | +22% | 0 | SeedJul 2014 | |
 Risk decisioning platform | W21Inactive | 9 | 0% | 0% | 0 | $18M | Series A$18M, Sep 2022 |
 The open-source AIOps platform | W23Acquired | 4 | 0 | $2.7M | Pre-seed$2.7M, Oct 2024 | ||
 ApolloShield is a system that detects unwanted drones and drives them… | S16 | 4 | −20% | 0 | $2.6M | Seed$2.5M, Apr 2018 | |
 Discover novel defense related materials/molecules. | F26 | 1 | 0 | ||||
 Know what your LLM is doing, and why it’s failing | W23Acquired | 1 | −93% | 0 | $6.6M | Seed$6.1M, May 2025 | |
 One place for all your queries, directly on your SQL editor | W23 | 1 | 0 | $2.2M | Seed$2.2M, Apr 2023 | ||
 Shifting the asymmetry of cyber security. | S15Acquired | 1 | 0 | $10.6M | Undisclosed round$9M, Aug 2018 |
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
15 Y Combinator companies have a founder who worked at Israeli Military Intelligence; 9 are active.
3 companies posted roles in the last 60 days, led by Blee (5 roles), Salt Security (1 roles) and Darrow (1 roles). 1 mark themselves as hiring on YC's directory.
By team growth over 6 months (10+ people): Blee (+36%), Wild Moose (+22%) and Diversion (+4%).
Largest latest rounds in the last 12 months, after their YC batch: Blee ($7M).