Cohorts of 2021

Companies whose accelerator cohort started in 2021. 1,685 companies.

CompanyClusterProgramStatusLast signal
Atomic Industries

Software orchestrated mass production of plastics

Robotics and physical worldAI-optimized manufacturing and toolingY CombinatorW21Activechecked 2026-08-23
Atrato

Enabling consumers split the cost of purchases without a credit card

FintechBuy now pay later for consumersY CombinatorW21Activechecked 2026-08-23
Aurabeat

Providing clean, safe, virus free air for homes, buildings and cars

Robotics and physical worldair purification hardwareY CombinatorW21Activechecked 2026-08-23
Auricle

Neurostimulation implant to restore hearing & speech understanding

Healthcare and bioneurostimulation implant for hearing restorationY CombinatorW21Activechecked 2026-08-23
Authologic

Stripe for online identity verification

Security and complianceidentity verification orchestrationY CombinatorW21Activechecked 2026-08-23
authzed

Authorization Infrastructure securing AI at OpenAI, Zoom, & more

Agent infrastructureAuthorization and access control infrastructureY CombinatorW21Activechecked 2026-08-23
Aviron Interactive

Aviron transforms workouts with game-based exercise machines, making…

Consumergamified home fitness equipmentY CombinatorW21Activechecked 2026-08-23
AvocadoAI

AI-Native Restaurant POS

Vertical AI agentsAI agent for restaurant operationsY CombinatorW21Activechecked 2026-08-23
Axiom.ai

No-code Browser RPA

Agent infrastructurebrowser automation and RPA toolingY CombinatorW21Activechecked 2026-08-23
Axle Health

Scheduling and workforce management SaaS for home healthcare providers

B2B SaaSWorkforce scheduling for home healthcareY CombinatorW21Activechecked 2026-08-23
Axolo

Improving Developer Experience with Streamlined Code Reviews

Developer toolscode review in SlackY CombinatorW21Activechecked 2026-08-23
Betterhalf

India’s first and only marriage super app

Consumermatrimony and wedding marketplaceY CombinatorW21Inactive2026-08-23
Bimaplan

Affordable insurance for the next billion Indians

FintechMicroinsurance for emerging marketsY CombinatorW21Activechecked 2026-08-23
BiodockAI

Cloud AI microscopy automation

Healthcare and bioAI microscopy image analysis platformY CombinatorW21Activechecked 2026-08-23
Bloom

Investing app that teaches you how to invest

Consumerinvesting education and gamified tradingY CombinatorW21Activechecked 2026-08-23
Bluelight

Analytics, built for the trades.

B2B SaaSanalytics platform for contractorsY CombinatorW21Activechecked 2026-08-23
BotBuilt

We use robots to build houses.

Robotics and physical worldRobotic construction and buildingY CombinatorW21Activechecked 2026-08-23
BrioHR

All-in-one HR management platform for SMEs

B2B SaaSHR management platform for SMEsY CombinatorW21Activechecked 2026-08-23
Bristle

At-home oral health testing, coaching & care

Healthcare and bioat-home oral health testingY CombinatorW21Activechecked 2026-08-23
Broad

The multicurrency account and card for Brazilians

Fintechmulticurrency accounts for emerging marketsY CombinatorW21Activechecked 2026-08-23
BusinessOnBot

Automated user acquisition & selling on WhatsApp for businesses

Commerce and marketplacesWhatsApp commerce automation for SMBsY CombinatorW21Activechecked 2026-08-23
CamberAI

Admin automation for healthcare

Vertical AI agentsAdministrative automation for behavioral healthY CombinatorW21Activechecked 2026-08-23
Camlist

The super app for pets

Consumerpet social marketplace platformY CombinatorW21Site unreachablechecked 2026-08-17
Camp

A Nouns DAO governance client

OtherWeb3 governance infrastructureY CombinatorW21Activechecked 2026-08-23
Care Weather

The highest-accuracy global weather data from low-cost flat satellites

Defense and spaceEarth observation satellitesY CombinatorW21Activechecked 2026-08-23
CashBook

Ramp for Indian Businesses - UPI Wallets for Employee Expenses

FintechEmployee expense management via UPIY CombinatorW21Activechecked 2026-08-23
Chatwoot

The modern, open source, self-hosted AI customer support platform

B2B SaaSunified customer support platformY CombinatorW21Activechecked 2026-08-23
Chorus Sleep

Mobile app and coaching program that helps employees sleep better

Consumersleep wellness mobile appY CombinatorW21Active, new domain2026-08-23
ClearAI

The unbiased AI and data layer for skin health.

Consumerskin health tracking and recommendationsY CombinatorW21Activechecked 2026-08-23
clicOH

Amazon-like logistics for e-commerce companies in Latam

Commerce and marketplacesLatAm e-commerce logisticsY CombinatorW21Activechecked 2026-08-23
cloud humansAI

AI-powered customer service for startups

Vertical AI agentsAI customer service automation for startupsY CombinatorW21Activechecked 2026-08-23
Coderhouse

Effective and accessible online live education.

Consumeronline education platformY CombinatorW21Activechecked 2026-08-23
Codingal

Leading online after-school for kids & teens to learn AI & coding

Consumeronline coding education for kidsY CombinatorW21Activechecked 2026-08-24
Compose.aiAI

Cut your writing time by 40% with AI-powered autocomplete

Horizontal AI assistantsAI writing autocomplete assistantY CombinatorW21Activechecked 2026-08-23
Curvenote

Communication and publishing tools for scientists

Developer toolsScientific publishing and documentationY CombinatorW21Activechecked 2026-08-23
CybleAI

Cyble - World’s First Intelligence-Driven, AI-Native Security…

Security and complianceAI-native cybersecurity threat detectionY CombinatorW21Activechecked 2026-08-17
DarrowAI

Bring Justice to Light

Security and complianceAI legal case intelligence platformY CombinatorW21Activechecked 2026-08-23
Dashlabs.ai

Software for medical laboratories and clinics

Healthcare and bioLaboratory information management systemY CombinatorW21Activechecked 2026-08-23
DatricsAI

Generative AI Healthcare Coding Automation

Vertical AI agentsAI medical coding automationY CombinatorW21Activechecked 2026-08-23
Dayra

Data-driven embedded Financial Services for Gig Workers

Fintechfinancial services for gig workersY CombinatorW21Activechecked 2026-08-23
Djamo

Challenger Bank for consumers in French speaking Africa.

FintechChallenger banking for African marketsY CombinatorW21Active2026-08-10
DreamWorldAI

DreamWorld is a next-gen Minecraft with generative AI building

ConsumerAI-powered 3D game and UGC platformY CombinatorW21Activechecked 2026-08-23
Encord

The data layer for physical AI

Data for AIMultimodal data curation for physical AIY CombinatorW21Activechecked 2026-08-23
Enode

Energy Orchestration Platform

Climate and energyhome energy coordination and grid orchestration platformY CombinatorW21Activechecked 2026-08-23
Entelexo Biotherapeutics

Creating a New Class of Drugs to Address Incurable Autoimmune Diseases

Healthcare and bioengineered exosome therapeuticsY CombinatorW21Activechecked 2026-08-23
Estoca

The Logistics Operating System for E-commerce in LatAm

Commerce and marketplacesAI logistics optimization for LatAm e-commerceY CombinatorW21Activechecked 2026-08-23
Expent Inc

Procure the right software 5x faster

Commerce and marketplacesB2B software procurement marketplaceY CombinatorW21Active2026-08-23
FathomAI

The most flexible AI meeting notetaker ever built.

Horizontal AI assistantsAI meeting notetaker and knowledge retrievalY CombinatorW21Activechecked 2026-08-23
Feroot Security

AI-powered Compliance Platform for PCI 4, CCPA, HIPAA, CIPA, 50+ laws

Security and complianceAI compliance automation platformY CombinatorW21Activechecked 2026-08-23
FifthTry

Continuous Documentation To End Documentation Rot

Developer toolsDocumentation automation and governanceY CombinatorW21Site unreachablechecked 2026-08-17
Finary.com

The new wealth manager for Europe

Fintechwealth management platform for retail investorsY CombinatorW21Activechecked 2026-08-23
Fintoc

Account-to-Account payments in Mexico and Chile.

FintechAccount-to-account payment APIY CombinatorW21Activechecked 2026-08-23
Firstbase.io

The all-in-one startup operating system

B2B SaaSStartup operations and compliance platformY CombinatorW21Activechecked 2026-08-23
FirstSupport.ai

AI Assistant for Customer Support

Horizontal AI assistantsAI copilot for customer support agentsY CombinatorW21Site unreachablechecked 2026-08-17
FitHub

The one-stop shop for healthy products

Commerce and marketplacesHealth-focused e-commerce groceryY CombinatorW21Activechecked 2026-08-23
Flextock

Tech-enabled fulfillment provider in the Middle East & Africa

Commerce and marketplacesTech-enabled fulfillment logisticsY CombinatorW21Activechecked 2026-08-23
FlowEQ

No-code workflow tool

B2B SaaSno-code workflow automationY CombinatorW21Activechecked 2026-08-23
FlutterFlow

Application Development Platform (Native Mobile + Web Apps)

Developer toolsLow-code app development platformY CombinatorW21Activechecked 2026-08-23
Flux

Cross border Payments infrastructure for internet businesses and…

FintechCross-border payment rails for merchantsY CombinatorW21Activechecked 2026-08-23
Flux AutoAI

Physical AI for Warehouses and Factories

Robotics and physical worldAI-powered autonomous material handlingY CombinatorW21Activechecked 2026-08-23
Foster

A better way to write.

Consumercommunity writing platformY CombinatorW21Activechecked 2026-08-23
Fractional

The place where motivated investors and entrepreneurs co-own together.

Consumerfractional real estate investingY CombinatorW21Activechecked 2026-08-23
gaiia

all-in-one operating system (OS) for telcos

B2B SaaSTelecom operations OSY CombinatorW21Activechecked 2026-08-23
Gerald Technologies, Inc

Buy Now Pay Later + Cash Advance for Household Essentials

FintechBNPL and cash advancesY CombinatorW21Activechecked 2026-08-23
Gigs

The OS for Embedded Telecom

B2B SaaSembedded telecom connectivity platformY CombinatorW21Activechecked 2026-08-23
GimBooks

GimBooks makes Bookkeeping Easy for small business owners

B2B SaaSCloud bookkeeping for SMBsY CombinatorW21Activechecked 2026-08-23
Gradia Health

Integrated, high touch healthcare — at scale

Healthcare and bioVirtual care platform for clinicsY CombinatorW21Activechecked 2026-08-23
GreaseBoss

GreaseBoss verifes industrial machinery is greased correctly

Robotics and physical worldMachinery maintenance verification hardwareY CombinatorW21Active, new domain2026-08-23
Great QuestionAI

User research on autopilot.

B2B SaaSuser research automation platformY CombinatorW21Activechecked 2026-08-23
Greywing

The Operating System for Maritime

Commerce and marketplacesMaritime logistics and supply chain optimizationY CombinatorW21Activechecked 2026-08-23
Gridware

Protecting the grid today, preparing the grid for tomorrow

Climate and energyGrid monitoring and outage detection hardwareY CombinatorW21Activechecked 2026-08-23
GroMo

App for independent agents to sell financial products in India

Fintechfinancial products distribution networkY CombinatorW21Activechecked 2026-08-23
H3X Technologies

The lightest electric aircraft motors in the world.

Robotics and physical worldElectric aircraft propulsion systemsY CombinatorW21Activechecked 2026-08-23
Hapi

Stocks and cryptos trading app with zero commissions and no minimums…

Fintechcommission-free trading platformY CombinatorW21Activechecked 2026-08-23
Haystack

Delivery Analytics for Software Teams

Developer toolsengineering metrics and delivery analyticsY CombinatorW21Activechecked 2026-08-23
Hermes RoboticsAI

Autonomous street sweeping as a service by retro-fitting vehicles

Robotics and physical worldautonomous street sweeping vehiclesY CombinatorW21Activechecked 2026-08-24
Homebase

Personalized rent-to-own real estate financing using technology in SEA

Fintechrent-to-own real estate financingY CombinatorW21Active2026-08-23
hoop.dev

Code review for DevOps tasks

Developer toolsDevOps code review and access controlY CombinatorW21Activechecked 2026-08-23
Houm

All-in-one real estate marketplace for Latin America

Commerce and marketplacesreal estate marketplace platformY CombinatorW21Activechecked 2026-08-23
Howdy.com

We help US tech companies hire and manage software engineers in LATAM

B2B SaaSLatin American tech talent marketplaceY CombinatorW21Activechecked 2026-08-17
HUBUC

Global Card Issuing and Payment Processing Engine

FintechGlobal card issuing and payment processing infrastructureY CombinatorW21Activechecked 2026-08-23
Hudu

The Most-Loved IT Documentation Platform

B2B SaaSIT documentation and operationsY CombinatorW21Activechecked 2026-08-23
Humaans

AI-Powered HRIS for high performing teams

B2B SaaSAI-powered HRIS for distributed teamsY CombinatorW21Activechecked 2026-08-23
HumanceAI

AI that keeps complex construction projects on schedule.

Vertical AI agentsAI project management for constructionY CombinatorW21Activechecked 2026-08-23
Infracost

Shift FinOps Left: Proactively Find & Fix Cloud Cost Issues

Developer toolsCloud cost visibility in CI/CDY CombinatorW21Activechecked 2026-08-23
InpharmDAI

We provide a curated, evidence- based answer to any clinical question.

Vertical AI agentsClinical pharmacy decision support agentY CombinatorW21Activechecked 2026-08-23
Jetdocs

Collaborative ticketing that integrates into Teams and Slack

B2B SaaScollaborative ticketing and workflow automationY CombinatorW21Activechecked 2026-08-23
Jiga

Source better parts by partnering directly with vetted manufacturers

Commerce and marketplacesB2B parts sourcing marketplaceY CombinatorW21Activechecked 2026-08-23
Juicy Marbles

Juicy marbles makes thick juicy and marbled plant based steaks.

Consumerplant-based meat alternativeY CombinatorW21Activechecked 2026-08-23
Kanda

Affirm for general contractors

Fintechcontractor financing platformY CombinatorW21Site unreachablechecked 2026-08-17
Kidato

Online school for K12 education in Africa

Consumeronline K12 education for AfricaY CombinatorW21Site unreachablechecked 2026-08-17
Kilobaser

Desktop DNA Printer. The Nespresso Machine for DNA.

Robotics and physical worldDNA synthesis hardware for labsY CombinatorW21Activechecked 2026-08-23
Kiwify

Create & sell online courses

B2B SaaScourse creation platformY CombinatorW21Activechecked 2026-08-23
Kodo

Corporate card & spend management platform for Indian startups

FintechCorporate card and spend managementY CombinatorW21Activechecked 2026-08-23
Kredi

Rocket Mortgage for LatAm.

FintechDigital mortgage lending LatAmY CombinatorW21Activechecked 2026-08-24
Lamar HealthAI

Take Care of Shitty Paperwork for Expensive Drugs

Vertical AI agentsAI pharmacy authorization and patient accessY CombinatorW21Activechecked 2026-08-23
Lendflow

Embedded lending infrastructure for software companies

FintechEmbedded lending platformY CombinatorW21Activechecked 2026-08-23
LightTwist

Realistic virtual video studio to record and stream from your browser

ConsumerVirtual studio for content creatorsY CombinatorW21Activechecked 2026-08-23
Lion Pose

Clinical skincare tested on diverse skin, now available in Sephora.

Consumerdirect-to-consumer skincareY CombinatorW21Activechecked 2026-08-23
LiveFlowAI

The Unified AI-ERP & FP&A Platform

B2B SaaSAI-powered ERP and FP&A platformY CombinatorW21Activechecked 2026-08-23