Code3School

Companies

Explore 99 of the world's leading technology companies

Showing 24 of 99 companies

Plausible logo

Plausible

Tallinn, EE
Analytics / Open Source

Privacy-friendly open source Google Analytics alternative.

plausible.io 20+ employees
Portainer logo

Portainer

Auckland, NZ
Open Source / DevOps

Container management made easy.

portainer.io 100+ employees
PostgreSQL logo

PostgreSQL

Remote
Database / Open Source

The world's most advanced open source relational database.

postgresql.org 0+ employees
PostHog logo

PostHog

San Francisco, CA
Analytics / Open Source

Open-source product analytics. Self-hostable.

posthog.com 100+ employees
PrestaShop logo

PrestaShop

Paris, FR
Open Source / E-commerce

Create your online store with free open source.

prestashop.com 700+ employees
Prometheus logo

Prometheus

Remote
Open Source / Monitoring

Monitoring system and time-series database.

prometheus.io 0+ employees
Red Hat logo

Red Hat

Raleigh, NC
Open Source / Enterprise

Open source software company. Part of IBM.

redhat.com 20,000+ employees
Rocket.Chat logo

Rocket.Chat

Houston, TX
Open Source / Messaging

Your team's communication hub. Open source Slack alternative.

rocket.chat 300+ employees
Sealos logo

Sealos

Remote
DevOps / Cloud

Cloud operating system based on Kubernetes.

sealos.io 100+ employees
Sentry logo

Sentry

San Francisco, CA
Monitoring

Application monitoring that helps every developer diagnose, fix, and optimize code.

sentry.io 700+ employees
Signal logo

Signal

San Francisco, CA
Messaging / Privacy

Private messenger. Open source, end-to-end encrypted.

signal.org 100+ employees
Snyk logo

Snyk

London, UK
Security

Develop fast, stay secure.

snyk.io 1,000+ employees
SourceHut logo

SourceHut

Philadelphia, PA
Open Source / Dev Tools

The hacker's forge. Software development platform.

sr.ht 50+ employees
Supabase logo

Supabase

San Francisco, CA
Backend / Database

The open-source Firebase alternative.

supabase.com 200+ employees
SUSE logo

SUSE

Nuremberg, DE
Open Source / Enterprise

Germany's open source company. Linux for enterprise.

suse.com 1,800+ employees
Tekton logo

Tekton

Remote
DevOps / Open Source

Kubernetes-native CI/CD building blocks.

tekton.dev 0+ employees
Telegram logo

Telegram

Dubai, UAE
Messaging

Fast, secure, cloud-based messaging.

telegram.org 500+ employees
Terraform (HashiCorp) logo

Terraform (HashiCorp)

San Francisco, CA
Open Source / DevOps

Infrastructure as Code. Cloud agnostic IaC.

terraform.io 2,000+ employees
The Odin Project logo

The Odin Project

Remote
EdTech / Open Source

Free full-stack curriculum. Open source.

Traefik logo

Traefik

Paris, FR
Open Source / DevOps

Modern HTTP reverse proxy and load balancer.

traefik.io 100+ employees
Travis CI logo

Travis CI

Berlin, DE
DevOps / CI-CD

Test and deploy with confidence.

travis-ci.com 50+ employees
Trigger.dev logo

Trigger.dev

Remote
Dev Tools

The open source background jobs framework.

trigger.dev 50+ employees
VLC logo

VLC

Paris, FR
Open Source / Media

VLC media player. Free and open source.

videolan.org 0+ employees
Wireguard logo

Wireguard

Remote
Open Source / Security

Extremely simple yet fast and modern VPN.

wireguard.com 0+ employees