Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

1stCollab

Active · Performance-Optimized Influencer Marketing at Scale

WebsiteYC profile

Why it ranks

How the rank works
12signal of 100 · rising 4
  • team of 11Team size · YC's directory+5.6
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

A sum of public facts, not a judgement and not investment advice.

Competitors

AIAIFluenceShared: influencer marketingAntler 2020KenyaStartup →AIBelugaShared: advertising, creator economy, marketingYC X25San FranciscoStartup →AIMindyShared: influencer marketing, scale, performanceArc 2023Startup →AIALLSALE Corp.Shared: influencer marketing, campaign, brand500 Global 2025South KoreaStartup →OtherInstaAgentShared: advertising, marketing, campaignYC X26San FranciscoStartup →
Companies closest to 1stCollab
Company
AIFluenceShared: influencer marketingAntler 2020Not statedAI
BelugaShared: advertising, creator economy, marketingYC X25ActiveAI
MindyShared: influencer marketing, scale, performanceArc Arc 2023Not statedAI
ALLSALE Corp.Shared: influencer marketing, campaign, brand500 Global 2025Not statedAI
InstaAgentShared: advertising, marketing, campaignYC X26 +1ActiveOther

Adjacent

OtherInbazzShared: marketing program, influencer marketing, scaleAntler 2024BrazilStartup →OtherMarkerlyShared: full campaign, influencer marketing, brand500 Global GA 5United StatesStartup →OtherKeepfaceShared: relevant influencer, influencer marketing, campaign500 Global Dojo IIIUnited Arab EmiratesStartup →OtherActivate HoldingsShared: influencer marketing, campaign, performance500 Global GA 6United StatesStartup →OtherBasemakerShared: influencer marketing, campaign, brandAntler 2023BrazilStartup →
Companies next to 1stCollab
Company
InbazzShared: marketing program, influencer marketing, scaleAntler 2024Not statedOther
MarkerlyShared: full campaign, influencer marketing, brand500 Global GA 5Not statedOther
KeepfaceShared: relevant influencer, influencer marketing, campaign500 Global Dojo IIINot statedOther
Activate HoldingsShared: influencer marketing, campaign, performance500 Global GA 6Not statedOther
BasemakerShared: influencer marketing, campaign, brandAntler 2023Not statedOther

Also from W23 in AI

All of W23
AIGooseworksSelf-Improving Marketing HarnessYC W23San FranciscoStartup →AI222the AI social facilitator for offline human to human interactionsYC W23New York CityStartup →AIAtmetoBuilding a frontier world model for powerYC W23Los AngelesStartup →AIAcquiredBooth AIGenerative AI Photographer for E-CommerceYC W23San FranciscoStartup →AIBoundaryThe programming language for AIYC W23SeattleStartup →AICombineHealthAutomating Healthcare Revenue Cycle Management with AI WorkforceYC W23San FranciscoStartup →
Company
GooseworksSelf-Improving Marketing Harnessteam of 5hiringActiveAI
222the AI social facilitator for offline human to human interactionsteam of 28hiringActiveAI
AtmetoBuilding a frontier world model for powerteam of 2ActiveAI
Booth AIGenerative AI Photographer for E-Commerceacquiredteam of 3AcquiredAI
BoundaryThe programming language for AIteam of 10hiringActiveAI, Devtools
CombineHealthAutomating Healthcare Revenue Cycle Management with AI Workforceteam of 15ActiveAI

About 1stCollab

1stCollab is the first influencer platform that fully automates and optimizes every aspect of your influencer marketing program. We’ve helped hundreds of startups launch their first campaigns and enabled larger brands to scale to thousands of influencers, while saving them over $1M annually in influencer spend. What we offer: - Smart search & recommendations – Instantly connect with thousands of relevant influencers. - Full campaign automation – From outreach and negotiations to contracts, payments, and taxes, we handle it all. - Real-time performance tracking – Monitor conversions, revenue, and run A/B tests with detailed reporting.

YC batch
W23 · Winter 2023
Status, per YC
Active
Category
AI
Team size
11
Location
San Francisco, CA, USA
Checked
6h ago

YC tags: Machine Learning, Marketing, Advertising, Creator Economy, AI

Changes seen

TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗

1stCollab in W23: 274 companies, 69% AI

1stCollab: questions

Which YC batch was 1stCollab in?

1stCollab was in Y Combinator's Winter 2023 batch (W23).

Is 1stCollab still active?

Y Combinator lists 1stCollab as active.

Where is 1stCollab based?

1stCollab lists San Francisco, CA, USA as its location on YC's directory.