At Four Nines we understand how to build and operate reliable interconnected computer systems.

Why Four Nines?

The name Four Nines is taken from the industry-standard term for 99.99% system availability, corresponding to less than 1 hour downtime per year.

Very few companies or websites achieve this level of reliabilty, mainly because this is hard to do.

What We Do

We are all experienced IT professionals working in London, UK, with combined industry experience of over 40 years. We have specialisms covering:

  • Software design and architecture
  • Build, deployment and systems integration
  • Network infrastructure design, implementation and operation

We regularly attend and speak at industry events in the UK and Europe; contact us if you’d like us to speak at your event or company.

Contact us if you need advice on building or operating reliable computer systems.