For Immediate Onsite or Remote IT Support Call: +44 (0) 20 7240 4942

IT Support London

IT Support

Business IT support is made easy with NSIS. Our  ITC support offering includes unlimited remote or on-site. The UK based support team is available 24/7/365. NSIS supports clients in the United Kingdom and Internationally. Our support centre is based in central London's Covent Garden. If you are experiencing problems with your IT infrastructure NSIS is here to help.
NSIS can support the following; Microsoft, Linux, Apple MAC, Server Hardware and Software. Workstations, Laptops and all network equipment. NSIS 's experienced Support Team are always ready to help.


Pay Monthly - Complete IT Support

Complete IT Support Services from NSIS Systems means we take full responsibility for your IT infrastructure.  Our Monitoring Systems ensure that our Support Team in London are fully aware of your infrastructures status.

  • Unlimited On Site Support
  • Unlimited Telephone Support
  • 24 Hour Remote Support Option
  • Unified Hardware Supplier
  • Unified Software Supplier
  • Dedicated Site Engineer
  • Guaranteed Response Times
  • Account Management
  • Monthly Rolling Contract
  • Long Term Business Partnerships


Pay Monthly - Complementary Back-end IT Support

Complementary back-end ITC support service offering is to complement your existing IT team. We would cover instances where your IT support team is unable to solve complex problems, on leave or absent. We will monitor your back-end infrastructure to ensure that both teams are able to react proactively.

  • Unlimited On Site Support
  • Unlimited Telephone Support
  • 24 Hour Remote Support Option
  • 30 Days Cancellation Period
  • Monthly Rolling Contract
  • Guaranteed Response Times


Pay as You Go - On Demand IT Support


NSIS provides on demand Pay As You Go (PAYG) ICT support services to Small Medium Enterprises with limited IT budgets. PAYG IT support services from NSIS offers a ‘On Demand’ remote support service charged at a hourly rate. NSIS allow clients the freedom to customize the level of ITC Support. Customers could combine a number of services including Pay Monthly Service Level Agreements and Pay As You Go IT support. For example a client may opt for a Pay Monthly Service Level Agreement for a essential IT system at the same time cover user computers with a remote Pay as You Go IT support during business hours.


  • Remote Support
  • Telephone Support
  • Certified Engineers
  • Service Customization Options

NSIS Assurance

NSIS business ICT support ensures that our clients get maximum performance and stability for their ICT infrastructure. As your business ICT partner we ensure that we understand your business procedures and processes so we can tailor our ICT support service to match your business needs. Our expertise and prompt service is always available. NSIS can undertake complete IT security or network audits.

Third Party IT Solutions and Vendor Support

IT support services is often required for solutions procured from or installed by third party Hardware or Software Vendors. When needed, we work comfortably with third party suppliers to remedy problems that might arise from the use of their products.