About Sec-1

Sec-1, a Claranet Group Company,  provides professional standard information security solutions to a vast range of clients throughout the public and private sectors.

Established in 2001, over the last 16 years Sec-1 has continually built on all Network Security knowledge, ensuring we are always able to help with any current issues.

This has enabled us to create a number of tailored services, including the specialist IT Health Check for public sector organisations designed to support Public Sector Network (PSN) Code of Connection compliance.

Sec-1 Ltd works within the following three core areas;

  • Security Testing
  • Products & Services
  • Training

Why is the Sec-1 Solution better?

  • We've been providing professional standard Network Security Solutions since 2001
  • Our solutions are tailored to meet the needs of specific sectors, types of organisations, and compliance standards
  • We are CHECK 'Green Light' accredited
  • We are CREST accredited (Infrastructure & Web Applications)


Founded in 1996, Claranet is one of Europe's leading managed IT services providers, offering businesses hosting, network and communications services. The company has been recognised as a leader in Gartner's Magic Quadrant for Managed Hybrid Cloud Hosting, Europe 2016, for four consecutive years.

Claranet has 7,000 customers, with 1,800 employees, based
in 20 offices and 37 data centres in the UK, France, Germany, Spain, the Netherlands, Portugal, Brazil and Italy. Annualised revenue is over £310million. Customers include: Airbus, BBC, ITV, Harvey Nichols, Orange, Peugeot, River Island, Superdry and UNICEF.

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'Following (our) initial meeting Sec-1 was requested to provide a Penetration Test for the Halcrow Group. The standard of report received has resulted in Sec-1 being the provider of choice for Penetration and Application Testing for the Halcrow Group and are retained for the foreseeable future.'

David Grant
Halcrow Group