About Culmen

Culmen builds ISP management software and provides network engineering services to internet service providers and network operators.

What we build

The Culmen platform covers subscriber authentication, billing, fair-use enforcement, uplink failover and content filtering. Every module reads and writes the same subscriber record, so billing, authentication and provisioning never disagree about what a customer is entitled to.

How it is licensed

Perpetual licences with no per-subscriber metering. Deploy on your own hardware and your subscriber data never leaves your network, or use the hosted option and we maintain it for you. Costs stay flat as your subscriber count grows.

Engineering services

Alongside the software we deliver remote network design, RADIUS deployment, MikroTik configuration and independent network audits. Each is delivered as tested configuration files plus written documentation, not as a set of instructions to follow yourself.

Company

Culmen is registered in the United Kingdom and works with operators internationally.