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S18 companies hiring the most right now

The 22 YC S18 companies with the most distinct open roles posted in the last 60 days.

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

Showing 22 of 22 companies on this list
#CompanyTeam6 mo12 moOpen rolesTotal raisedLast round
1
Logistic Management System for E-commerce & Retail in Mexico.
534+2%+8%36$27MSeries B$20M, Aug 2022
2
Modernizing the hospitality tech stack.
401+7%+35%33$177MSeries D$80M, Jun 2025
3
Consumer fintech for Indonesia
939+2%+15%23$515MSeries C$270M, Aug 2026
4
We at Leena AI build a virtual assistant that answers employee's…
327+11%+25%20$41MUndisclosed round$1M, Oct 2026
5
Wealth manager
149+6%+17%12$59.1MUndisclosed round$4.2M, Feb 2024
6
Making low cost versions of high cost generic drugs.
144+7%+19%12SeedJan 2018
7
Company Brain for people and agents to work in harmony.
77−57%−57%11$90.4MUndisclosed round$70M, Sep 2026
8
The all-in-one business phone for teams.
43−17%−25%11$171MUndisclosed round$105M, Sep 2025
9
We provide primary care in senior living communities.
78−5%−6%10$58.5MSeries B$15M, Dec 2023
10
Build and grow your app business
185+13%+41%9$119MSeries C$50M, May 2025
11
The complete toolkit to sell travel.
660%+16%5$56.2MSeries B$30M, Oct 2019
12
Titan is an award-winning wealth manager with a mission to increase…
75+53%+103%4$73MUndisclosed round$58M, Jan 2023
13
AI-enabled ordering for medical equipment & supplies
246+29%+64%4$3MSeed$3M, Mar 2021
14
Robotic human cell manufacturing
49+7% 4$20.8MSeries A$19M, Nov 2023
15
Lending Intelligence Software
103+14%+41%3$12.1MSeries A$12M, Jul 2021
16
Your AI agent for creating anything customer-facing, in minutes.
52+8%−4%3$71.6MSeries B$50M, Apr 2022
17
Full-stack grocery delivery in LatAm
116−1%−3%2$32.6MSeries A$22.5M, Jan 2022
18
AI Document Fraud Detection for Banks, Credit Unions & Lenders
46+7%+7%2$38.7MSeries B$25M, Jan 2023
19
Trends prediction for marketers
33+14%+22%2$1.8MSeed$1.8M, Jun 2019
20
We build cities for people, not cars.
33−3%−17%2$40MSeries A$30M, Jan 2022
21
One-stop-shop for flexible family care
1,078+3%+8%1$241MSeries D$150M, Nov 2021
22
Shopify for experiences
65+7%−2%1$59.6MSeries A$10M, Oct 2026

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 S18 companies

How many YC S18 companies are there?

131 companies were in Y Combinator's Summer 2018 batch (S18); 77 are active.

Which YC S18 companies are hiring?

22 companies posted roles in the last 60 days, led by SkydropX (36 roles), Canary Technologies (33 roles) and Ajaib (23 roles). 28 mark themselves as hiring on YC's directory.

Which YC S18 companies are growing fastest?

By team growth over 6 months (10+ people): Titan (+53%), Verse Medical (+29%) and Eden (+20%).

Which YC S18 companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Ajaib ($270M), Within ($70M) and Corvus Robotics ($20M).

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