Premium IT Support

Providing IT support and services to small and medium sized businesses in
London and the South East for 25 years.

24/7 Support Helpdesk

CNS provide a complete fixed cost support service that will provide your team with support when they need it. You get all the benefits of a professional helpdesk with none of the associated overhead.


IT support, email solutions, remote working, network security, disaster recovery, telephony, network cabling, online backup.

Affordable Pricing

Use IT services on your terms, getting the specific value that you need for your business. CNS provides an economical IT consumption system like the cloud, but for your on-premises solutions. You pay only for what you actually need.

What is the Cloud and how can it help your business?

The Big Cloud was launched in August 2009 to meet the modern needs of growing firms throughout the UK. Computer Network Services have a long history of providing innovative and cost effective IT solutions within the business sector including web based systems.

Historically businesses had to plan their growth accurately and invest in the necessary IT facilities to accommodate this growth. This has always been a little difficult but in the current climate it is proving impossible to predict what is ahead or even to raise the capital for IT infrastructure.

How can Office 365 help your business?

"Office 365" refers to subscription plans that include access to Office applications plus other productivity services that are enabled over the Internet (cloud services). Office 365 includes plans for use at home and for business. Learn about Office 365 for use at home. Office 365 plans for business include services such as Skype for Business web conferencing and Exchange Online hosted email for business, and additional online storage with OneDrive for Business.

Many Office 365 plans also include the desktop version of the latest Office applications, which users can install across multiple computers and devices. The fully installed applications include: Word, Excel, PowerPoint, OneNote, Outlook, Publisher, and Access. (Publisher and Access are available on PC only.) And you can install them across multiple devices, including PCs, Macs, Android tablets, Android phones, iPad, and iPhone. When you have an active Office 365 subscription that includes the desktop version of Office, you always have the most up-to-date version of the applications.

Contact us to learn more about Office 365

We operate across London and the South East

CNS provides dedicated 24/7 technical support to small and medium sized businesses across London and the South East.

  • London
  • Blackheath
  • Eltham
  • Mottingham
  • Dartford
  • Bromley
  • Lewisham
  • Lee
  • Gravesend
  • Greenwich
  • Chislehurst
  • Petts Wood
  • Beckenham
  • Hayes
  • Bickley
  • Catford
  • Bexley
  • Sidcup
  • Dulwich
  • Orpington
  • Croydon
  • Swanley
  • Bexleyheath
  • Belvedere