ESS PRO · Built on Synapse Pro

The enterprise-grade Matrix backend, engineered for sovereignty.

Element Server Suite Pro is built on Synapse Pro — an enterprise-grade Matrix server delivering unparalleled performance. Autoscaling, multi-tenancy, advanced identity and role-based access, packaged security updates, auditing, and full compliance — operating on open, secured, or air-gapped networks.

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✓ Self-hosted · Air-gapped · SaaS ✓ Helm-chart Kubernetes deployment ✓ Supports any Matrix frontend

Synapse Pro

Purpose-built for performance and scale.

Synapse Pro is designed for scale, with advanced functionality rewritten in Rust. It's built to support millions of users — delivering major performance gains and phenomenal resource savings while ensuring a great user experience at all times.

✓Autoscaling worker architecture for elastic load
✓Ultra cost-efficient multi-tenancy — tens of thousands of small instances per cluster
✓Industry-standard Helm-chart deployment on Kubernetes
✓LTS releases every six months, supported for 12 months, with Level 3 support

Synapse Pro · live cluster

7.4M

Active accounts

99.99%

Uptime · trailing 12mo

Cluster utilisation32%

Resource savings vs. open-source Synapse84%

Capabilities

Enterprise-grade, end to end.

Everything large organisations need for governed, sovereign communications — across open, secured, and air-gapped networks.

Autoscaling & multi-tenancy

Elastic worker architecture handles millions of users on one stack — or tens of thousands of cost-efficient tenants, each serving a small team.

Identity & access

Directory integration auto-provisions joiners, movers and leavers. SSO via OpenID Connect and LDAP. Role and group-based permissions, organisation-wide.

Auditing & compliance

Built-in record keeping for end-to-end encrypted communications. In-room auditing, retention policies and exports — meeting compliance requirements without breaking E2EE.

Moderation & oversight

Element Admin gives full oversight of every chat room. Manage reported incidents, structure 1:1s, team spaces, all-hands and announcement-only rooms.

Secure Border Gateways

Fine-grained federation. Define rules, block or allow connections, and manage external comms with confidence — collaborate with third parties while staying in control.

Cross-domain solutions

Share data across information classification boundaries. High-side gateways for secured environments where standard federation isn't an option.

Air-gapped networks

Deploy entirely offline for isolated environments. The same enterprise stack — without ever crossing the perimeter.

Vendor-backed software

LTS releases every six months, supported for 12 months. Advanced security advisories, packaged updates, and Level 3 support with priority response times.

Any Matrix frontend

ESS Pro supports every Matrix client — including white-labeled Element Pro. Operate on open, secured or air-gapped networks without changing the stack.

Questions

Frequently asked.

What enterprise architects, security leads and procurement tend to ask first.

What is ESS Pro and how is it different from open-source Synapse? +

ESS Pro is Element's enterprise-grade Matrix distribution. It replaces open-source Synapse with Synapse Pro — purpose-built for performance with core paths rewritten in Rust. Designed to support millions of users with major performance gains and resource savings, plus enterprise capabilities not available in the community edition.

Where can ESS Pro be deployed? +

Self-hosted, SaaS, or fully air-gapped. ESS Pro ships as Helm charts for Kubernetes, so deployment uses the same industry-standard tools your platform team already runs. Open networks, secured networks, and isolated high-side environments are all first-class.

How does identity and access management work? +

ESS Pro integrates with your directory so joiners, movers and leavers are automatically provisioned and deprovisioned. SSO via OpenID Connect, LDAP authentication, and Active Directory / SCIM integration. Role and group-based permissions span the entire organisation.

Can it really scale to millions of users? +

Yes. Synapse Pro is engineered for scale — autoscaling workers, Rust-rewritten hot paths, and an architecture proven at national-deployment levels. It also supports ultra cost-efficient multi-tenancy: tens of thousands of small separate instances on one cluster, each serving a handful of users.

How does auditing work without breaking encryption? +

ESS Pro provides built-in record keeping for end-to-end encrypted communications. In-room auditing, retention policies, and exports — all governed by your admins, all without weakening E2EE. Compliance and corporate oversight without a back door.

What about federation with external organisations? +

Secure Border Gateways give fine-grained federation control: define rules, block or allow connections, and manage external comms with confidence. For high-classification environments, Cross-Domain Solutions let you share data across information boundaries safely.

What support and security cadence comes with it? +

Long-Term Support releases every six months with 12 months of stability and security updates. Advanced security advisories, packaged updates, and Level 3 support for all functionality issues and bug fixes — with response times based on priority.

Which Matrix clients does it support? +

All of them. ESS Pro supports every Matrix frontend, and ships with Element Pro — a workplace-built client that can be fully white-labeled. Your stack, your brand, your sovereignty — no vendor lock-in.