Top 20 Alternatives to Symphony in Enterprise Instant Messaging Software

Widely adopted team chat with channels, file sharing, extensive app ecosystem, and enterprise‑grade security controls.

Integrated with Microsoft 365, offering chat, video, file collaboration, and advanced compliance features for large organizations.

Open‑source, self‑hosted messaging platform with strong security, custom integrations, and compliance certifications.

Fully customizable, open‑source chat solution with end‑to‑end encryption, on‑premise deployment, and extensive integration options.

Unified messaging, video meetings, and file sharing with enterprise security and Cisco’s networking backbone.

Part of Google Workspace, offering direct messaging, rooms, AI‑powered suggestions, and seamless integration with Google apps.

Enterprise social network with chat, groups, live video, and AI‑driven content discovery.

Team communication tool with channels, bots, AI‑driven suggestions, and deep integration with Zoho’s business suite.

Collaboration platform featuring chat, video calls, shared to‑dos, and a marketplace of productivity integrations.

Threaded, topic‑based messaging that scales for large, fast‑moving teams; available as SaaS or self‑hosted.

Focused on organized, asynchronous communication with threaded conversations and minimal distractions.

Unified messaging, video, and task management within the RingCentral ecosystem, with strong admin controls.

Combines team chat, task boards, and workflow automation in a single platform for streamlined collaboration.

All‑in‑one workspace with chat, video, file sharing, and collaborative documents, built for remote teams.

Originally for gamers, now offers Enterprise plans with advanced admin controls, SSO, and compliance features.

Secure, open‑source messenger built on the Matrix protocol, offering end‑to‑end encryption and federation.

Encrypted business communication platform with messaging, voice, video, and file sharing, compliant with GDPR and HIPAA.

Privacy‑first messaging with end‑to‑end encryption; offers a Business API for secure enterprise communications.

Integrated chat and video solution with enterprise security, analytics, and global data residency options.

Enterprise social intranet that includes real‑time chat, newsfeeds, and employee recognition tools.