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YC Marketing companies

171 Y Combinator companies in Marketing, 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
52 roles
HightouchS19
  1. 2Webflow46
  2. 3Apollo.io45
See all 19
Fastest growingteam, 6 months
+233%
InstaAgentX26
  1. 2Apollo.io+44%
  2. 3Uplane+35%
See all 32
Shrinkingteam, 12 months
−39%
Reforged LabsW22
  1. 2Boostly−31%
  2. 3Dyspatch−25%
See all 13
Raised the mostlast 12 months
$150M
HightouchS19
  1. 2Netomi$110M
  2. 3JustAI$18.7M
See all 9
Companies
171
Active
98
Hiring, last 60 days
19
Open roles, 60 days
238
People on these teams
12,875
Showing 50 of 171 companies
CompanyBatchTeam6 mo12 moOpen rolesTotal raisedLast round
Professional website design and publishing platform.
S131,847+9%+16%46$335MUndisclosed round$400K, Apr 2025
Apollo is the foundation of your entire go-to-market strategy.
W16987+44%+54%45$251MSeries D$100M, Aug 2023
The leading Composable CDP and AI Decisioning platform
S19658+14%+51%52$332MSeries D$150M, Apr 2026
The easiest way to create a beautiful, mobile optimized website.
W134680%−1%1$17.5MSeries A$10M, Aug 2018
Lob is the only automation platform that transforms direct mail into…
S13440+8%+14%3$82.3MSeries C$50M, Feb 2021
PartnerStack is a full stack solution for partnerships.
S15Acquired374+5%+7%0$36.2MSeries B$28.9M, May 2021
Self-Driving Customer Care
W16310+16%+34%14$217MSeries C$110M, Apr 2026
The AI Retention Platform for Brands & Retailers
W192810%−19%5$106MSeries C$65M, Jun 2022
The AI operating system for restaurants
W21214+10%+13%1$2.3MSeed$2.3M, Apr 2021
Shopify for Beauty and Wellness businesses in Latam
W21186+9%+23%1$42.8MSeries B$35M, Aug 2025
Engage customers through personalized omni-channel messaging
S11165−5%−1%8$82MSeries C$50M, Jan 2023
Video for business.
S11148−6%−12%1$90.9MUndisclosed round$15.2M, Apr 2024
Track & Boost Your Brand’s Visibility in AI Search
S21141+3%+22%1$2.6MSeed$2.5M, Sep 2021
AI-powered tech that makes business TV smarter, engaging, and…
W20135+26%+101%2$27.5MDebt$3.5M, Jul 2026
Rebuilding data in advertising to protect privacy
S14108−3% 1$105MSeries C$75M, Nov 2021
In-Person, Hybrid and Virtual Event Management Software
S19102+3%+2%YC$4MSeed$1M, Nov 2021
Advertising for the new internet
W2393+3%+19%YC$10MSeries A$10M, May 2026
We build communities through massively multiplayer mobile games
W08Acquired86+8%+9%0SeedMar 2008
Subscriptions for Shopify
S20Acquired78−14%−9%0$8.4MSeed$8.3M, Dec 2021
Marketing automation for event promoters (email, sms, ads, CRM)
S1478+3%+11%YC$27.1MSecondary$27M, Oct 2026
After School & Enrichment Activities Marketplace
W2276−7%−12%39$790KSeed$500K, May 2025
Interactive product demos
W2173+20%+30%0$5.4MSeed$4.2M, Mar 2022
We help companies scale marketing campaigns through WhatsApp
S1966+8%+2%0$15MSeries A$15M, Jul 2022
Swayable predicts consumer opinion and the impact of content
W1864+3%+25%9SeedMay 2019
AppLovin for the food & CPG
S1951−2%−9%0$8MSeed$5.3M, Apr 2023
No-code email marketing platform to send forms & widgets within emails
S21Acquired45−10%−48%0$2.3MSeed$2M, Jun 2021
Thunkable is the no-code platform to build powerful native mobile apps
W1643 +5%2$33.6MSeries B$30M, Feb 2022
Create video by chatting to AI
S2242−9%−19%0
Premier growth platform for restaurants
S2241−11%−31%0$27.6MSeries A$22M, Feb 2025
Mobile marketing analytics and infrastructure
S14Acquired37+3%+3%0$2.5MSeed$2.5M, Jun 2016
Post-booking revenue and capacity optimization for airlines…
W0935+9% YC$8.6MSeries A$6M, Sep 2022
Marketing automation platform for selling to local businesses.
W2133+3% YC$5MSeed$5M, Jul 2024
The CRM powering iconic musicians and events
S2033+10%+14%YC$7.5MCorporate round$3M, Oct 2022
Agentic Marketing Platform
W2429+32%+93%YC$20.9MSeries A$18.7M, Jun 2026
GPT Search & Merchandising for fashion e-commerce
S2028+12%+17%0$37MSeries A$17M, Feb 2022
Performance-Optimized Influencer Marketing at Scale
W23270%+13%YC$500KYC investment$500K, Jan 2024
OwnLocal automates marketing for over 129,000 SMBs through 3,300…
W10270%−4%0$3.4MDebt$1.4M, May 2016
Replace marketing agencies with AI
F2523+35%+188%4$5MSeed$4.5M, Apr 2026
The best way to collect and analyze voice and video feedback
W20Acquired23+28%+21%0$4MSeed$4M, Apr 2025
Booktrope provides a software platform that makes it easy for…
W15Inactive230%0%0$2.3MAngel$1.2M, Apr 2015
Software for collaborating with content creators and influencers
W15Acquired23−8%−12%0$12.2MSeries B$1.1M, Dec 2018
Empower your customer service team through AI & automation.
S20Acquired21+250%+250%0$4.8MUndisclosed round$4.8M, Mar 2026
AI Email Production - Emails on brand, guaranteed to work, fast.
W14210%−25%0$13.3MSeed$6M, Jan 2022
SEO & Content Marketing Intelligence
S1021+5%+5%0$1.7MSeed$1.3M, Oct 2011
Scale marketing campaigns across hundreds of personas
X2620+233%+300%0$500KYC investment$500K, Jun 2026
We help products get discovered & used by AI agents.
S2520+18%+43%YC$7MSeed$6.5M, Oct 2025
Be the Answer in AI Search - AI SEO across SEO, GEO & AEO
W2520+11%+18%YC$2.7MSeed$2.2M, Mar 2025
AI edited video souvenirs as a service
W16200%−5%0
Real-time Nielsen ratings for Brands.Accelerate marketing and product…
W1519−5%−5%0SeedMar 2015
Tools for AI agents to run marketing for the world's biggest…
W2418+29%+125%YC$500KYC investment$500K, Apr 2024

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 Marketing companies

How many YC Marketing companies are there?

171 Y Combinator companies are in Marketing; 98 are active.

Which YC Marketing companies are hiring?

19 companies posted roles in the last 60 days, led by Hightouch (52 roles), Webflow (46 roles) and Apollo.io (45 roles). 39 mark themselves as hiring on YC's directory.

Which YC Marketing companies are growing fastest?

By team growth over 6 months (10+ people): InstaAgent (+233%), Apollo.io (+44%) and Uplane (+35%).

Which YC Marketing companies raised the most?

Largest latest rounds in the last 12 months, after their YC batch: Hightouch ($150M), Netomi ($110M) and JustAI ($18.7M).

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