Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

JustAI

Active · Agentic Marketing Platform

WebsiteYC profile

Why it ranks

How the rank works
10signal of 100 · rising 4
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6
  • hiringHiring · Titles (titles.fru.dev), YC+2

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

Competitors

AIBrushlessShared: agentic marketingEF 2025BangaloreStartup →AIAcquiredLiftigniterShared: personalization, always, marketingYC W14San FranciscoStartup →OtherAcquiredPositionalShared: marketing, scaleYC S21CharlestonStartup →AISitefireShared: marketing, agenticYC W26BYStartup →
Companies closest to JustAI
Company
BrushlessShared: agentic marketingEF 2025Not statedAI
LiftigniterShared: personalization, always, marketingYC W14AcquiredAI
PositionalShared: marketing, scaleYC S21AcquiredOther
SitefireShared: marketing, agenticYC W26ActiveAI, Data

Adjacent

AIAcquiredResonanceShared: reinforcement learning, marketingYC W24San FranciscoStartup →AICorsairShared: personalization, workflow automation, agentYC W25New York CityStartup →DataAcquiredIndivioShared: personalization, marketingYC S17San FranciscoStartup →AIAffil.aiShared: marketingYC S24San FranciscoStartup →OtherInactiveClearMixShared: marketingYC S20New York CityStartup →
Companies next to JustAI
Company
ResonanceShared: reinforcement learning, marketingYC W24AcquiredAI
CorsairShared: personalization, workflow automation, agentYC W25ActiveAI, Devtools
IndivioShared: personalization, marketingYC S17AcquiredData
Affil.aiShared: marketingYC S24ActiveAI
ClearMixShared: marketingYC S20InactiveOther

Also from W24 in AI

All of W24
AIAttunementAttunement turns fragmented behavioral health records into structured…YC W24San FranciscoStartup →AIBrainbase LabsThe AI Labor CompanyYC W24San FranciscoStartup →AICentauri AIHelps teams work effectively with AI coding agents.YC W24San FranciscoStartup →AICommodityAIThe AI operating system for commodity operationsYC W24San FranciscoStartup →AIDynamitePersonalize your website for every visitor in <300msYC W24San FranciscoStartup →AIGetCruxAI Creative StrategistYC W24San FranciscoStartup →
Company
AttunementAttunement turns fragmented behavioral health records into structured…team of 3ActiveAI
Brainbase LabsThe AI Labor Companyteam of 4hiringActiveAI
Centauri AIHelps teams work effectively with AI coding agents.team of 5ActiveAI, Devtools
CommodityAIThe AI operating system for commodity operationsteam of 6hiringActiveAI
DynamitePersonalize your website for every visitor in <300msteam of 3ActiveAI, Devtools
GetCruxAI Creative Strategistteam of 9hiringActiveAI, Data

About JustAI

Always-on AI agents for 1-1 personalization at scale

YC batch
W24 · Winter 2024
Status, per YC
Active
Category
AI
Team size
4
Location
San Francisco, CA, USA
Checked
7h ago

YC tags: Reinforcement Learning, Workflow Automation, Personalization, Marketing, AI

Changes seen

TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗

JustAI in W24: 248 companies, 84% AI

JustAI: questions

Which YC batch was JustAI in?

JustAI was in Y Combinator's Winter 2024 batch (W24).

Is JustAI still active?

Y Combinator lists JustAI as active.

Where is JustAI based?

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