Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Rehearsals

Predict your customers’ behavior by simulating real people.

Websitespeedrun page

Why it ranks

How the rank works
6signal of 100 · rising 3
  • 2 programsMore than one program · this site+3
  • went through speedrunProgram · this site+3

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

Competitors

AIEinoShared: digital twin500 Global GA 25United StatesStartup →AIMantisShared: digital twin, dataYC W26New York CityStartup →AIzupply AIShared: digital twinAntler 2022DenmarkStartup →AINewtwenShared: digital twin, realPlug and PlayItalyStartup →AILeeap LabsShared: digital twin, decision, realPlug and PlayUnited StatesStartup →
Companies closest to Rehearsals
Company
EinoShared: digital twin500 Global GA 25Not statedAI
MantisShared: digital twin, dataYC W26ActiveAI
zupply AIShared: digital twinAntler 2022Not statedAI
NewtwenShared: digital twin, realPlug and Play Not statedAI
Leeap LabsShared: digital twin, decision, realPlug and Play Not statedAI

Adjacent

OtherSync TechnologiesShared: digital twinAntler 2020AustraliaStartup →OtherEvidensoShared: digital twinAntler 2026UKStartup →AINexadShared: adtech / marketing tech, ai agents, realspeedrun SR004San FranciscoStartup →Developer toolsDidimiShared: digital twin, replica, decisionPlug and PlayUnited KingdomStartup →OtherOrigami XRShared: digital twin, createGoogle Cloud Canada 2022TorontoStartup →
Companies next to Rehearsals
Company
Sync TechnologiesShared: digital twinAntler 2020Not statedOther
EvidensoShared: digital twinAntler 2026Not statedOther
NexadShared: adtech / marketing tech, ai agents, realspeedrun SR004Not statedAI
DidimiShared: digital twin, replica, decisionPlug and Play Not statedDevtools
Origami XRShared: digital twin, createGoogle Cloud Canada 2022Not statedOther

Also from speedrun SR004 in AI

All of speedrun SR004
AIAtorieAtorie: Luxury Without the Price Tagspeedrun SR004Los AngelesStartup →AIChroniclerWhat if your self-texts could organize themselves?speedrun SR004PittsburghStartup →AICoverstarGen Alpha’s social platform.speedrun SR004San FranciscoStartup →AIDarwinDiscovery & execution layer for AI agents on the web.speedrun SR004San FranciscoStartup →AIHuman²Extending what it means to be Human.speedrun SR004San FranciscoStartup →AIMarloStrike 'brand deal' gold in your inbox.speedrun SR004San FranciscoStartup →
Company
AtorieAtorie: Luxury Without the Price TagNot statedAI
ChroniclerWhat if your self-texts could organize themselves?Not statedAI
CoverstarGen Alpha’s social platform.Not statedAI
DarwinDiscovery & execution layer for AI agents on the web.Not statedAI
Human²Extending what it means to be Human.Not statedAI
MarloStrike 'brand deal' gold in your inbox.Not statedAI

Programs

Programs Rehearsals went through
ProgramCohortSource
a16z speedrunSR004speedrun Page
Plug and PlayNot statedPlug and Play Page

About Rehearsals

Rehearsals creates AI digital twins of your real customers. Within 5 minutes, predict performance on pricing changes, advertising content and new product flows with 85% accuracy. Use our 50,000 existing replicas or bring your own data, either way we help companies 10x their daily tactical decision speed and accuracy.

Category
AI
Location
New York, United States of America
Checked
10h ago

Tags: AI Agents, Adtech / Marketing Tech

Changes seen

One-linerNov 2, 2026

Rewrote its one-liner; it read "AI digital twins reveal what your market wants in minutes."

Source ↗

Rehearsals: questions

Which accelerators did Rehearsals go through?

Rehearsals is listed by a16z speedrun (SR004), Plug and Play.

Where is Rehearsals based?

Rehearsals lists New York, United States of America as its location on a16z speedrun's page.