169 YC Marketing Startups (B2B)

169 YC companies fall under Marketing, YC's B2B subcategory, across every batch since 2005. Each row shows the one-liner, batch, HQ and status, and links to a reconstruction of the company's YC application in the real form.

Companies
169
Top locations
San Francisco, Los Angeles and New York
YC top companies
2
169 reconstructed applications

Read the YC application of all 169 companies

  • Every company's YC application, reconstructed in the real form
  • Filter every batch by industry, country and team size
  • Then find the investors who fund startups like yours

The first 100 companies, top companies first

1
Webflow
WebflowTopProfessional website design and publishing platform.
Summer 2013San Francisco, CAActive
2
Weebly
WeeblyTopBuild a free website that grows with your business.
Winter 2007San Francisco, CAAcquired
3
1stCollab
1stCollabPerformance-Optimized Influencer Marketing at Scale
Winter 2023San Francisco, CAActive
4
A Thinking Ape
A Thinking ApeWe build communities through massively multiplayer mobile games
Winter 2008Vancouver, BC, CanadaAcquired
5
Absurd
AbsurdAI Videos
Fall 2025Los Angeles, CAActive
6
AdGrok
AdGrokEasy SEM software. Acquired by Twitter in 2011.
Summer 2010San Francisco, CAAcquired
7
AdThrow
AdThrow
Summer 2009Inactive
8
Affil.ai
Affil.aiAI Affiliate Network For Financial Companies
Summer 2024San Francisco, CAActive
9
AgendaPro
AgendaProShopify for Beauty and Wellness businesses in Latam
Winter 2021Santiago, Santiago Metropolitan Region, ChileActive
10
Ahazou
AhazouPodium for local businesses in Latam
Summer 2021São Paulo, SP, BrazilActive

That is 10 of 169.

Every company below has its YC application reconstructed in YC Insights. Create a free account to read them all.

Read all 169 applications
12
AlgoViral
AlgoViralWe help high-growth startups go viral on autopilot
Summer 2021London, United KingdomActive
16
Archer
ArcherAI-powered gifting for customer acquisition and retention
Spring 2026New York, NYActive
17
AthenaHQ
AthenaHQBe the Answer in AI Search - AI SEO across SEO, GEO & AEO
Winter 2025San Francisco, CAActive
18
Audiobeta
Audiobeta
Winter 2006Somerville, MAInactive
20
Avalanche
AvalancheReferral program SDK for startups
Winter 2019San Francisco, CAInactive
21
BackType
BackTypeBackType was an analytics company acquired by Twitter in 2011
Summer 2008San Francisco, CAAcquired
22
Banabo
BanaboML Marketing Infrastructure
Summer 2022San Francisco, CAActive
23
Beluga
BelugaInfluencer marketing that converts
Spring 2025San Francisco, CAActive
24
Bizzy AI
Bizzy AIBizzy works 24/7 so you never miss a lead.
Summer 2025New York City, NYActive
25
Bluma
BlumaCanva for short-form video ads
Fall 2025San Francisco, CAActive
26
Bobidi
BobidiRestaurant Loyalty Using Quiz
Winter 2022San Francisco, CAActive
28
Boostable
BoostableAdvertising platform tools for marketplace sellers.
Winter 2014San Francisco, CAAcquired
29
Boostly
BoostlyPremier growth platform for restaurants
Summer 2022Lehi, UTActive
31
Castled.io
Castled.ioCustomer Engagement software on top of BigQuery/Snowflake
Winter 2022Bengaluru, KA, IndiaInactive
33
Chute
ChuteDiscover the photos and videos people are taking of your brand or…
Winter 2012San Francisco, CAAcquired
34
Circa
CircaEvent marketing CRM
Summer 2016Boston, MAActive
35
ClearBrain
ClearBrainCausal Analytics for Growth Teams
Winter 2018San Francisco, CAAcquired
37
CoinTent
CoinTentRecover revenue lost to ad blockers
Summer 2016San Francisco, CAInactive
39
Dabble
DabbleA synthetic photo studio for e-commerce
Winter 2015Toronto, ON, CanadaInactive
41
DemandSphere
DemandSphereSEO & Content Marketing Intelligence
Summer 2010Columbus, OHActive
42
Depict
DepictGPT Search & Merchandising for fashion e-commerce
Summer 2020Stockholm, Stockholm County, SwedenActive
43
Dittofeed
DittofeedOpen-source customer engagement & messaging automation
Summer 2022Los Angeles, CAActive
44
Dubjoy
DubjoyDubjoy translates and voice-overs your video to any language
Summer 2011San Francisco, CAInactive
45
Dyspatch
DyspatchAI Email Production - Emails on brand, guaranteed to work, fast.
Winter 2014Victoria, BC, CanadaActive
49
FastJVM
FastJVMMaking the JVM faster
Winter 2017Palo Alto, CAActive
50
Gauge
GaugeYour marketing agent for organic, paid, and AI search.
Summer 2024San Francisco, CAActive
51
GiveSpark
GiveSparkGivespark was a celebrity charity fundraising platform
Winter 2012Palo Alto, CAInactive
52
Gluetrail
GluetrailCreate step by step articles with screenshots and videos 10x faster
Winter 2023Paris, Île-de-France, FranceActive
53
Gooseworks
GooseworksOpenClaw-style AI coworkers for GTM teams
Winter 2023San Francisco, CAActive
55
Hightouch
HightouchThe leading Composable CDP and AI Decisioning platform
Summer 2019San Francisco, CAActive
56
Hilos
HilosClose and activate your customers on WhatsApp
Summer 2021Mexico City, CDMX, MexicoAcquired
57
Hive
HiveMarketing automation for event promoters (email, sms, ads, CRM)
Summer 2014Kitchener, ON, CanadaActive
58
HOKALI
HOKALIAfter School & Enrichment Activities Marketplace
Winter 2022San Francisco, CAActive
59
Hotspots
HotspotsReal-time analytics (acq by TWTR, 2012)
Winter 2011San Francisco, CAAcquired
63InfoharmoniWinter 2010San Francisco, CAInactive
64
InstaAgent
InstaAgentScale marketing campaigns across hundreds of personas
Spring 2026San Francisco, CAActive
66
Jupiter
JupiterAppLovin for the food community
Summer 2019New York City, NYActive
67
JustAI
JustAIAgentic Marketing Platform
Winter 2024San Francisco, CAActive
68
Kaya
KayaMarketing agency for startups: 10x cheaper, better and faster
Summer 2021London, England, United KingdomActive
69
Kite
KiteScreen recorder for stunning product demo videos
Summer 2023San Francisco, CAActive
70
Kuli
KuliAI coworker for marketing teams at the largest consumer brands
Spring 2026San Francisco, CAActive
71
Lapis
LapisAI that creates and runs ads, end-end
Fall 2025San Francisco, CAActive
72
Laudable
LaudableApp for B2B companies to find customer stories and advocates
Summer 2021San Francisco, CAAcquired
74
Laylo
LayloThe CRM powering iconic musicians and events
Summer 2020Los Angeles, CAActive
75
LeanMarket
LeanMarketMobile advertising
Summer 2012Mountain View, CAInactive
78LocentLocent is an automated messaging platform for companiesSummer 2015San Francisco, CAInactive
79
Loops
LoopsEmail sending for startups
Winter 2022Washington, DCActive
82
Makrwatch
MakrwatchScale new user acquisition with YouTube Creators
Winter 2015New York, NYActive
83
Manicule
ManiculeAI Native Developer Relations
Spring 2026San Francisco, CAActive
84
Marketfox
MarketfoxMarketing automation platform optimized for mobile and web.
Winter 2017San Francisco, CAInactive
85
Memoir
MemoirAI CMO for Software Companies
Spring 2026San Francisco, CAActive
86
Milk Video
Milk VideoCreate video testimonials with a link
Winter 2021New York, NYInactive
88
Motionlead
MotionleadAnimated mobile ads.
Winter 2014San Francisco, CAAcquired
89
Motives
MotivesConsumer focus groups run by AI
Summer 2025London, England, United KingdomActive
91
Narrative
NarrativeAI-Powered Sports Highlights
Fall 2025San Francisco, CAActive
92
Navattic
NavatticInteractive product demos
Winter 2021New York, NYActive
93
Netomi
NetomiSelf-Driving Customer Care
Winter 2016San Mateo, CAActive
94
Nextstore
NextstoreMobile optimized storefronts for Shopify
Summer 2020Paris, Île-de-France, FranceInactive
95
ngrow.ai
ngrow.aiLow-code SaaS for marketing in push notifications
Winter 2022San Francisco, CAActive
96
Oda
OdaAI Agent for Home Design
Winter 2020Los Angeles, CAActive
97
OmniVirt
OmniVirtOmniVirt is the leading VR Advertising platform for brands and…
Summer 2012San Francisco, CAAcquired
99
Optilly/Installmonetizer
Optilly/InstallmonetizerFb ad optimization platform
Winter 2012San Jose, CAInactive

The other 69 companies

Every remaining company in this list, A to Z. Each link opens the company's public page.

Applying to YC? Study these applications first.

YC Insights holds the reconstructed application of every company on this page, filterable by batch, industry and country, next to 60,000+ investors who fund startups like yours.

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About this list

This list is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise.

Frequently Asked Questions

How many Y Combinator companies are in Marketing (B2B)?

This directory lists 169 YC companies in Marketing (B2B), out of 6,207 across every batch since 2005. The count updates when the directory is refreshed, and every one of them is on this page with a link to its public profile.

Are the YC applications on these pages real?

No. YC keeps submitted applications private. Every application linked from this list is a reconstruction: the real YC form questions, answered from the company's public data. The Company section is free on each page; the rest opens in YC Insights.

Which companies on this page are best known?

Webflow and Weebly lead the table above. YC marks 2 of the 169 companies here as top companies, its own list of the highest-valued and highest-revenue alumni.

How do I use this list when applying to YC?

Pick five companies on this page whose product is closest to yours, read their reconstructed applications side by side in YC Insights, and note how each answers the same question. Then write your own answers to that standard.

Where does this data come from?

From YC's public company directory, refreshed by batch, with each company's status, industry and location as YC reports them. Round Funded adds the reconstructed application and the founder profiles; nothing private is published.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.