Top Tech Companies Directory

Element (Matrix)

London, UK

Open Source / Messaging

Secure messaging. All your conversations in one place.

messaging matrix decentralized open-source security

element.io 200+ employees

Exercism

London, UK

EdTech / Open Source

Code practice and mentorship. Free, forever.

coding practice mentorship open-source community

exercism.org 50+ employees

Fedora

Remote

Open Source

Community distribution sponsored by Red Hat.

linux open-source community fedora

fedoraproject.org 0+ employees

Forgejo

Remote

Open Source / Dev Tools

Beyond coding. Forge your future. Self-hosted Gitea fork.

git open-source self-hosted forge community

forgejo.org 0+ employees

FreeBSD Foundation

Boulder, CO

Open Source

The free and open-source Unix-like operating system.

bsd open-source unix server networking

freebsd.org 0+ employees

freeCodeCamp

Remote

EdTech

Learn to code for free. Build projects. Earn certifications.

education coding open-source javascript html

freecodecamp.org 500+ employees

Ghost

Singapore, SG

Publishing

Turn your audience into a business.

publishing cms open-source node creators

ghost.org 60+ employees

GIMP

Remote

Open Source / Design

GNU Image Manipulation Program. Free image editor.

design image-editing open-source gnu c

gimp.org 0+ employees

Gitea

Remote

Open Source / Dev Tools

Git with a cup of tea. Painless self-hosted Git.

git open-source self-hosted go developer-tools

gitea.com 0+ employees

GitHub

San Francisco, CA

Dev Tools

Where the world builds software.

git version-control collaboration open-source

github.com 3,000+ employees

GitLab

Remote

Dev Tools

The DevSecOps platform. One platform, limitless possibilities.

git devops ci-cd security open-source

gitlab.com 2,000+ employees

GNOME Foundation

Remote

Open Source

Creating free software that empowers users.

linux open-source desktop gnome

gnome.org 30+ employees

Gogs

Remote

Open Source / Dev Tools

A painless self-hosted Git solution.

git open-source self-hosted go

gogs.io 0+ employees

Grafana Labs

New York, NY

Open Source / Monitoring

Open source analytics and monitoring platform.

monitoring analytics open-source dashboard visualization

grafana.com 800+ employees

Hasura

San Francisco, CA

Dev Tools

Instant GraphQL APIs on your data.

graphql api database postgresql open-source

hasura.io 200+ employees

Home Assistant

Remote

Open Source / IoT

Open source home automation.

home-automation iot open-source python smart-home

home-assistant.io 0+ employees

Infisical

San Francisco, CA

DevOps / Open Source

Open-source secret management platform.

secrets open-source security devops typescript

infisical.com 50+ employees

Inkscape

Remote

Open Source / Design

Open-source vector graphics editor.

design vector graphics open-source svg

inkscape.org 0+ employees

Jenkins

Remote

DevOps / Open Source

The leading open source automation server.

ci-cd open-source automation devops java

jenkins.io 0+ employees

Jitsi

Remote

Open Source / Video

Secure and flexible video conferencing.

video-conferencing open-source self-hosted webrtc

jitsi.org 100+ employees

Joomla

Remote

Open Source / CMS

The flexible platform for websites.

cms open-source php community web

joomla.org 0+ employees

KDE

Remote

Open Source

Experience freedom. Free open source software.

linux kde open-source desktop

kde.org 0+ employees

KeePass

Remote

Open Source / Security

Free, open source, light-weight password manager.

security password-manager open-source free encryption

keepass.info 0+ employees

LibreOffice

Berlin, DE

Open Source / Office

Free & powerful office suite.

office open-source documents spreadsheet presentation

libreoffice.org 0+ employees

Companies

Element (Matrix)

Exercism

Fedora

Forgejo

FreeBSD Foundation

freeCodeCamp

Ghost

GIMP

Gitea

GitHub

GitLab

GNOME Foundation

Gogs

Grafana Labs

Hasura

Home Assistant

Infisical

Inkscape

Jenkins

Jitsi

Joomla

KDE

KeePass

LibreOffice

Technical Execution Sandbox