All 36 companies in Y Combinator's Summer 2010 batch, with team size, growth, open roles and funding.
Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.
| Company | Team | 6 mo | 12 mo | Open roles | Total raised | Last round |
|---|---|---|---|---|---|---|
Software development platform. | 1,108 | +7% | +20% | 38 | $436M | Series C$105M, Mar 2022 |
Digital meets physical for big chain restaurants | 358 | +3% | +4% | 1 | $214M | Undisclosed round$10M, Sep 2026 |
Financial dashboard for businesses. | 162 | −2% | −6% | 2 | $9.9M | Undisclosed round$7M, Jan 2021 |
platform for home service professionals | 158 | −1% | +1% | 0 | $64.2M | Series B$38M, Dec 2013 |
SEO & Content Marketing Intelligence | 21 | +5% | +5% | 0 | $1.7M | Seed$1.3M, Oct 2011 |
Disposable social networks. | 11 | +10% | +10% | 0 | $80K | YC investment$80K, Aug 2010 |
WorkFlowy is a better way to manage information. It provides a simple… | 9 | 0% | −10% | 0 | SeedApr 2017 | |
Hipmunk takes the agony out of searching for flights, accommodations,… | 8 | 0% | 0% | 0 | $55M | Undisclosed round$5.7M, Apr 2016 |
Chartio is changing how companies work by building the best… | 6 | 0% | 0% | 0 | $6.8M | Undisclosed round$2.2M, Jan 2014 |
The online financial management service for everyone. | 6 | 0% | 0% | 0 | $21.5M | Series B$15.5M, May 2014 |
Add profiles to email. | 5 | 0% | 0% | 0 | $1M | Seed$1M, Aug 2010 |
Memorial sites. | 3 | 0 | $2.5M | Series A$2.5M, Feb 2011 | ||
Crowdsourced design marketplace for paper goods. | 2 | 0 | $1.1M | Series A$1.1M, Apr 2011 | ||
Business dashboards | 2 | 0 | $500K | YC investment$500K, Nov 2010 | ||
Secure Enterprise Collaboration. | 1 | 0 | $15.5M | Series B$10M, Jul 2015 | ||
Friends motivate one another: I'll do x if you do y. | 1 | 0 | $745K | Debt$495K, Feb 2012 | ||
Personal debt and credit management. Acquired by Avant in 2015. | 1 | 0 | $4.8M | Series A$4.5M, Jun 2011 | ||
Real-time visibility into critical apps and services all in one place. | 1,374 | 21 | $524M | Post-IPO debt$350M, Oct 2023 | ||
The retreat where curious programmers recharge and grow | 75 | 0 | $217K | Seed$200K, Jan 2012 | ||
Teevox | ||||||
Simplenote (simplenote.com) and the Simperium platform for syncing… | 0 | SeedAug 2010 | ||||
Map-based apartment search. | 0 | Undisclosed roundAug 2010 | ||||
One app for stress-free shopping, cooking, and meal planning. | ||||||
iPad drawing software. | ||||||
Better Microsoft Project. | ||||||
Eyetracking using webcams. | 0 | SeedJun 2010 | ||||
Upbeat: Building the next generation of Public Relations (PR) | ||||||
Q&A for businesses. | ||||||
New email inbox. | ||||||
Local chat. | ||||||
Woot for iOS apps. | ||||||
Location-aware smartphone application that enables parents to keep… | ||||||
Easy SEM software. Acquired by Twitter in 2011. | ||||||
Like Twitter but you post others' status. | ||||||
iPad games. | 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
36 companies were in Y Combinator's Summer 2010 batch (S10); 6 are active.
4 companies posted roles in the last 60 days, led by Docker (38 roles), PagerDuty (21 roles) and inDinero (2 roles).
By team growth over 6 months (10+ people): Docker (+7%), DemandSphere (+5%) and Presto (+3%).
No reported rounds after their YC batch in the last 12 months.