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Industry Computer security
Founded 2009
Headquarters Malvern, Worcestershire, UK
Key people
Dan Turner (CEO)[1]
Simon Wiseman (CTO)[2]
Tony Kinkead[3], Sales & Marketing Director
Nathan Gilks[4], Solutions Director
Products Mail Guard, Web Guard, TransShipment Guard, TransGap, Network Management Guard, File Transfer Guard, Digital Identity Guard, Chat Guard, Minerva Next Generation Data Diode
Revenue £5m[5]
Number of employees
26 (2015)[6]

Deep-Secure Limited[7] is a British company based in Malvern, Worcestershire. It provides network security guard products for assured secure information sharing.


Deep-Secure Limited was formed in December 2009 by a management buy-in of the Specialist Products Division of Clearswift. The buy-in was backed by venture capital firm YFM.[8] The YFM-managed Chandos Fund[9] and British Smaller Companies VCTs 1 and 2 all backed the deal, through which software entrepreneur Richard Beaton became chairman of Deep-Secure with Miles Clee as CEO. The new company set up offices in Reading UK.

In June 2010 Simon Wiseman joined Deep-Secure as head of development from QinetiQ’s cyber security division.[10]

In September 2010 Deep-Secure relocated to Malvern, Worcestershire[11] in the UK's Cyber Valley.[12]

In September 2012, Robin King became CEO, followed by Dan Tuner in April 2016.


Deep-Secure's products have been selected in military procurement projects.[13][14][15]


When Deep-Secure was formed it acquired two products from ClearSwift - Bastion and DeepSecure.

  • Bastion is an EAL4 evaluated guard platform, originally targeted at the Sun Trusted Solaris 8 operating system. It was later ported to Solaris 10 with Trusted Extensions. The platform exploits the mandatory access control features of the Solaris operating system to provide separate compartments for the different components of the guard.[16]
  • DeepSecure is an EAL4 evaluated guard[17] for SMTP and X.400 Email that runs on the Bastion platform.

Since the acquisition, the Bastion and DeepSecure products were merged and their scope widened to cover Hypertext Transfer Protocol (HTTP and HTTPS) for web browsing and web services.

In addition, a Network Management Guard has been created to protect network and security management systems from the networks they monitor and control. This provides a full application level proxy for Simple Network Management Protocol (SNMP) and Internet Control Message Protocol (ICMP).

Further developments include integrating the guards with third party data diodes to provide high assurance one-way connections that defend against the threat to the integrity of data and availability of services in the protected network.

Minerva is Deep-Secure's Next Generation Data Diode. Minerva is an enhanced diode that allows information to be checked before securely passed in or out of an isolated system whilst protecting against attack from the opposite direction.


Colin Nash, Business Development Manager at Deep-Secure won the AFCEA 2010 Meritorious Service Award.[18]

Cyber Security Specialist, Deep-Secure Ltd, won the UKCeB Excellence Award For Making Information Sharing Secure for their work on the Signed and Encrypted Email Over The Internet (SEEOTI) project in February 2012.[19]

Deep-Secure won the BVCA Venture Capital-Backed Management Team of the Year Award in the Midlands region [20] in May 2012.[21]


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