CrustdataGet an API key

YC B2B companies

3,235 Y Combinator companies in B2B, with team size, growth, open roles and funding.

Updated weekly, last on November 9, 2026. Roster from Y Combinator's public directory.

Hiring the mostlast 60 days
230 roles
GitLabW15
  1. 2Rippling192
  2. 3Deel144
See all 100
Fastest growingteam, 6 months
+300%
Mundo AIW25
  1. 2Broccoli AI+254%
  2. 3InstaAgent+233%
See all 100
Shrinkingteam, 12 months
−66%
SecodaS21
  1. 2Shaped−59%
  2. 3Portão 3−57%
See all 100
Raised the mostlast 12 months
$400M
ReplitW18
  1. 2Exa$250M
  2. 3Flock Safety$200M
See all 100
Companies
3,235
Active
2,282
Hiring, last 60 days
373
Open roles, 60 days
3,324
People on these teams
205,736
Showing 50 of 3,235 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
The all-in-one HR and payroll platform for global teams
W199,642+1%+21%144$1.3BSeries E$300M, Oct 2025
One place to run all your HR, IT, and Finance. Globally.
W177,889+5%+23%192$2.4BSeries G$450M, May 2025
Backup and share files in the cloud.
S07Public3,970−3%+3%35$2.8BPost-IPO debt$400M, Jun 2026
A complete DevOps platform delivered as a single application.
W15Public3,477+1%+7%230$414MPost-IPO equity$268M, Feb 2022
Platform for global logistics.
W142,978+3%+8%93$2.7BSecondary$260M, Apr 2026
A flexible work app that connects businesses with hourly workers.
S152,747+7%+16%2$148MSeries D$60M, May 2023
Change the world to value skills over pedigree
S112,231+4%+14%3$103MSeries D$60M, Mar 2022
Vanta, the proven leader in automated compliance helping startups…
W181,993+6%+34%9$503MSeries D$150M, Jul 2025
The leader in automated data movement
W131,934+5%+13%44$853MDebt$125M, May 2023
Extremely talented assistants for busy people
W151,877+1%+3%YC$12.3MUndisclosed round$139K, Jun 2024
Professional website design and publishing platform.
S131,847+9%+16%46$335MUndisclosed round$400K, Apr 2025
People infrastructure for the future of work
S141,846+3%+14%28$740MUndisclosed round$61.1M, May 2025
The everything store for restaurants in LATAM.
W19Inactive1,760 0%0$351MSeries D$80M, Nov 2024
Providing Amazon level logistics to e-commerce businesses.
S141,730+6%+14%35$331MSeries E$200M, Jun 2021
Get more leads. Make more money.
W161,661+6%+12%36$423MUndisclosed round$201M, Oct 2022
Making diverse, high-quality data easily available to anyone, anywhere
S191,580+14%+72%19$33.5MSeries A$32.3M, Jul 2023
The easiest way to automate your work.
S121,530+3%+8%12$1.4MUndisclosed round$1.4M, Apr 2024
The first public safety operating system that eliminates crime.
S171,446+1%+6%32$1.2BSeries I$200M, Apr 2026
The future of B2B spend
S201,421+13%+38%3$371MSeries D$190M, Oct 2024
Customer communication and payments platform.
W14Public1,203+3%+6%5$172MSecondary$3.8M, Jun 2021
The fastest shipping for online shopping
W201,170+1%+4%107$129MSeries C$82M, Mar 2022
Software development platform.
S101,108+7%+20%38$436MSeries C$105M, Mar 2022
AI-First Creative Partner for Enterprise Teams
W161,036+3%+8%5$35.1MSeries A$30M, Dec 2021
Jasper is a leader in creating content using Artificial Intelligence
W181,019−2%+1%2$131MUndisclosed round$400K, Jan 2026
Apollo is the foundation of your entire go-to-market strategy.
W16987+44%+54%45$251MSeries D$100M, Aug 2023
Southeast Asia’s e-commerce logistics and enablement platform
W199810%+2%0$132MSeries C$43.7M, Apr 2022
The agentic operating system for legal work
W24980+81%+321%123$866MSeries D$50M, Apr 2026
The 401(k) for small and medium-sized businesses.
S15930+12%+20%36$915MUndisclosed round$100M, Oct 2025
A developer-friendly and enterprise-grade search API.
W14923+9%+10%19$334MSeries D$150M, Jul 2021
We train AI engineers and connect them with companies.
S20877+1%+2%0$11.8MSeries A$10M, May 2022
AI-powered contract management
S15868+3%+15%1$334MSeries E$150M, Jan 2022
Indonesia's #1 ATS & Job Portal to match top talents & companies
W22838−8%−13%0Pre-seedMar 2022
Unlocking the power of biotech with modern software for modern science
S12813+3%+3%4$412MSeries F$100M, Nov 2021
Mixpanel is event analytics for builders that need answers.
S09771+18%+43%26$277MSeries C$200M, Nov 2021
All-in-one app for internal communication and HR
W22752+22%+79%1$77.5MSeries A$77.5M, Feb 2026
The leading Composable CDP and AI Decisioning platform
S19658+14%+51%52$332MSeries D$150M, Apr 2026
AI-powered Language Operations platform
W14Acquired655−1%−5%0$112MUndisclosed round$21M, Dec 2023
Helloverify is a background screening platform (Checkr for India).
W18641+9%+12%YC$120KSeries A$120K, Mar 2019
Bluecrew is a web based staffing agency.
S15Acquired620+4%+10%0$3.2MUndisclosed round$2.5M, Jan 2017
A learning platform that enables you to train your staff or customers.
S15581−4%−10%YC$402MUndisclosed round$30M, May 2023
All-in-one recruiting platform that empowers hiring excellence in…
W19580+31%+73%56$120MSeries D$50M, Jul 2025
Customer communications hub for building strong relationships
S14579+6%+13%4$204MSeries D$65M, Jun 2022
The cloud-native, operational database built for speed and scale.
W11565+3%+2%14$464MSeries F$30M, Oct 2022
Logistic Management System for E-commerce & Retail in Mexico.
S18534+2%+8%36$27MSeries B$20M, Aug 2022
Turning company knowledge into expert teams
W15517+1%+3%11$78.4MSeries B$62M, Dec 2021
Veriff is a global AI-native identity platform building trust online
W18514−6%−1%5$192MSeries C$100M, Jan 2022
Talent engagement platform
S17Acquired5070%+7%0
Build in a weekend. Scale to millions.
S20484+38%+106%0$1.2BSeries F$150M, Oct 2026
TRM is building a safer world for billions of people.
S19481+14%+36%67$220MSeries C$70M, Sep 2026
The easiest way to create a beautiful, mobile optimized website.
W134680%−1%1$17.5MSeries A$10M, Aug 2018

How this works

1. The roster

Every launched company in YC's public directory, with its batch, status, industry and location. New companies show up the week YC lists them.

2. The numbers

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.

3. The lists

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.

Built with Crustdata. Get your own API key and build your own.

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.

  • Company search for team size, growth and funding
  • Job search with a count by company, for who is hiring and for what
  • A watch that re-runs the search weekly and sends only what changed
# 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

Questions about YC B2B companies

How many YC B2B companies are there?

3,235 Y Combinator companies are in B2B; 2,282 are active.

Which YC B2B companies are hiring?

373 companies posted roles in the last 60 days, led by GitLab (230 roles), Rippling (192 roles) and Deel (144 roles). 829 mark themselves as hiring on YC's directory.

Which YC B2B companies are growing fastest?

By team growth over 6 months (10+ people): Mundo AI (+300%), Broccoli AI (+254%) and InstaAgent (+233%).

Which YC B2B companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Replit ($400M), Exa ($250M) and Flock Safety ($200M).

Browse YC companies

By batch

Show fewer

By industry

Show fewer

By location

Show fewer

By founders' past employer

Show fewer