CategoriesMessaging

Companies in the category 'Messaging'

These are companies that provide open source tools or platforms for messaging and communication.

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Showing 1-6 of 6 items
Element

A sovereign and secure communications platform.

Element is a secure communications platform built on the open-source Matrix protocol, providing end-to-end encrypted messaging, voice, and video calling for teams and organizations. The company offers both hosted and on-premises solutions with a focus on privacy, security, and interoperability.

Location: London, United Kingdom
Founded: 2019
Industries
Communication
Technologies
TypeScriptMatrix
Sectors
Enterprise
Licenses
Apache-2.0
Updated: March 13, 2026
2 people
5 headlines
SimpleX Chat

Private messaging without user identifiers

SimpleX Chat Ltd is a London-based company that develops SimpleX, a decentralized messaging network and application platform designed to operate without any user identifiers. Unlike conventional messaging platforms, SimpleX assigns no user IDs—not even random ones—making it the first messaging network to offer this level of metadata privacy. The platform uses end-to-end encryption with the double-ratchet protocol and allows users to self-host servers, giving them full ownership of their contacts and communications.

Location: London, United Kingdom
Founded: 2021
Industries
Communication
Technologies
PrivacyReal-Time Communication
Sectors
Consumers
Licenses
AGPL-3.0
Updated: March 13, 2026
1 person
5 headlines
Zulip

Organized chat for distributed teams

Zulip is a powerful open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations. It is designed to help teams collaborate efficiently and is built on technologies like Python and Django. Zulip primarily serves enterprises looking for robust communication solutions.

Location: San Francisco, CA, USA
Founded: 2012
Industries
Software
Technologies
DjangoReal-time Chat
Sectors
Enterprise
Licenses
Apache-2.0
Updated: March 3, 2026
1 person
3 headlines
Huly

Huly: open-source platform for team productivity.

Huly provides a project management platform that serves as an all-in-one replacement for Linear, Jira, Slack, and Notion.

Location: Monaco
Founded: 2020
Industries
Communication
Technologies
Issue TrackingProject Management
Sectors
Enterprise
Licenses
EPL-2.0
Updated: May 18, 2025
1 person
4 headlines

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Chatwoot

Open-source customer support with AI

Chatwoot is an open-source customer engagement platform that helps businesses manage conversations across multiple channels like website live chat, Facebook page, Twitter, WhatsApp, SMS, email, and more. It is built using modern technologies and can be self-hosted or used as a SaaS offering.

Location: San Francisco, CA, USA
Founded: 2017
Industries
Customer Service
Technologies
Social MediaCross-Platform
Sectors
Enterprise
Licenses
Custom
Updated: May 17, 2025
3 people
2 headlines
Synadia

Provides NATS.io for secure app communication

Synadia provides a secure, universal communications system built on NATS. Their platform enables digital systems to connect, communicate, and coordinate across any environment, offering a global utility for modern connected systems. Synadia primarily serves enterprise clients.

Location: San Mateo, CA, USA
Founded: 2017
Industries
GovernmentFinancial Services
Technologies
Cloud NativeMicroservices
Sectors
Enterprise
Licenses
Apache-2.0
Updated: May 15, 2025
1 person
4 headlines