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Connect | Protect | Assure
  • Meet the Board

  • David ‘Dibble’ Clark
    Chairman

    BACKGROUND

    Dibble is a co-founder of 3SDL. At just 17 Dibble gained his pilot’s licence and signed up for a 20 year commission in the Royal Air Force. 

    He initially trained as a pilot before graduating in 1985 as a combat ready Air Battle Manager and did a real smorgasbord of land-based tours and sea-borne deployments in the UK, Near East, and Central and South America. 

    Dibble spent a lot of time training and examining, both as controller and as a qualified weapons instructor (QWI). He quickly gained a life-long reputation for his ability to think differently! After leaving the RAF he became the UK MoD’s head of delegation to a number of international boards dealing with information systems. After a stint at the UK’s defence acquisition agency he was recruited by STASYS (now Lockheed Martin). 

    BACKGROUND

    Dibble is a co-founder of 3SDL. At just 17 Dibble gained his pilot’s licence and signed up for a 20 year commission in the Royal Air Force. 

    He initially trained as a pilot before graduating in 1985 as a combat ready Air Battle Manager and did a real smorgasbord of land-based tours and sea-borne deployments in the UK, Near East, and Central and South America. 

    Dibble spent a lot of time training and examining, both as controller and as a qualified weapons instructor (QWI). He quickly gained a life-long reputation for his ability to think differently! After leaving the RAF he became the UK MoD’s head of delegation to a number of international boards dealing with information systems. After a stint at the UK’s defence acquisition agency he was recruited by STASYS (now Lockheed Martin). 

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  • Matt May
    Managing Director

    BACKGROUND

    Matt is the Managing Director and co-founder of 3SDL Ltd. Matt is passionate about life-long training and education both for 3SDL staff and for our clients. 

    Although busy with running our growing company, Matt still makes time to keep his hand in with training and delivers courses all around the world.

    BACKGROUND

    Matt is the Managing Director and co-founder of 3SDL Ltd. Matt is passionate about life-long training and education both for 3SDL staff and for our clients. 

    Although busy with running our growing company, Matt still makes time to keep his hand in with training and delivers courses all around the world.

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  • Jon Prior
    Director

    BACKGROUND

    Jon is a co-founder of 3SDL. He spent 25 years working for UK and international armed forces, during this time he provided technical support to a diverse range of Data Link and Combat Identification programmes. 

    Much of this work centred around participating in and leading numerous data links trials/exercises in the UK, Europe and the US. 

    As a defence civilian employee, he was deployed to Italy during the Kosovo Crisis in 1999 as a member of the DERA team responsible for managing and monitoring allied multi-TDL networks during Op ALLIED FORCE. This unique opportunity gave him invaluable experience of the priorities and pressures of real-time data link operational network management.

    BACKGROUND

    Jon is a co-founder of 3SDL. He spent 25 years working for UK and international armed forces, during this time he provided technical support to a diverse range of Data Link and Combat Identification programmes. 

    Much of this work centred around participating in and leading numerous data links trials/exercises in the UK, Europe and the US. 

    As a defence civilian employee, he was deployed to Italy during the Kosovo Crisis in 1999 as a member of the DERA team responsible for managing and monitoring allied multi-TDL networks during Op ALLIED FORCE. This unique opportunity gave him invaluable experience of the priorities and pressures of real-time data link operational network management.

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  • Meet some of our experts

  • Steve Dunks
    Software Development Team Leader

    BACKGROUND

    Steve has over 20 years’ experience in software development and systems engineering within the defence sector. Steve spent 17 years within BAE Systems and their subsidiaries with roles including Software Developer, Software Team Lead and Software Manager until finishing as the Tactical Data Link Design Authority for a range of TDL products and services.

    Prior to joining 3SDL Steve spent 4 years as Test and Acceptance Lead at Rockwell Collins in support of delivering a TDL ground C2 system.

    BACKGROUND

    Steve has over 20 years’ experience in software development and systems engineering within the defence sector. Steve spent 17 years within BAE Systems and their subsidiaries with roles including Software Developer, Software Team Lead and Software Manager until finishing as the Tactical Data Link Design Authority for a range of TDL products and services.

    Prior to joining 3SDL Steve spent 4 years as Test and Acceptance Lead at Rockwell Collins in support of delivering a TDL ground C2 system.

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  • Jeff Portlock
    ISR Team Leader

    BACKGROUND

    Jeff is a high-achieving senior leader, with a sustained record of successful strategic planning, operational delivery and change leadership. He has over 30 years of military experience as a Royal Air Force officer, leaving in 2016 as an Air Commodore; he is atypically experienced across all domains of Intelligence, Surveillance and Reconnaissance (ISR) operational aviation and command, capability procurement, programme delivery, policy development and strategic management.

    Having commanded at Squadron, Station, Deployed Operating Base and Force levels, including command of the UK’s ISR Force, Jeff joined 3SDL as Head of ISR in May 2017. 

    BACKGROUND

    Jeff is a high-achieving senior leader, with a sustained record of successful strategic planning, operational delivery and change leadership. He has over 30 years of military experience as a Royal Air Force officer, leaving in 2016 as an Air Commodore; he is atypically experienced across all domains of Intelligence, Surveillance and Reconnaissance (ISR) operational aviation and command, capability procurement, programme delivery, policy development and strategic management.

    Having commanded at Squadron, Station, Deployed Operating Base and Force levels, including command of the UK’s ISR Force, Jeff joined 3SDL as Head of ISR in May 2017. 

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  • Bill Adsett
    Cyber & EW Team Leader

    BACKGROUND

    Bill joined 3sdl in May 2017 as the EW&C Team Lead. He comes from an Army, Engineering and Project Management background. He left the Army as a Lieutenant Colonel in the Royal Corps of Signals having commanded at Regimental level and having spent his time with R SIGNALS units, UKSF, SPCISR IPT and DERA. He is a Chartered Engineer and since Apr 2008 he has project managed many research, development, delivery and product introduction projects.

    BACKGROUND

    Bill joined 3sdl in May 2017 as the EW&C Team Lead. He comes from an Army, Engineering and Project Management background. He left the Army as a Lieutenant Colonel in the Royal Corps of Signals having commanded at Regimental level and having spent his time with R SIGNALS units, UKSF, SPCISR IPT and DERA. He is a Chartered Engineer and since Apr 2008 he has project managed many research, development, delivery and product introduction projects.

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  • Bob Daisley
    Command, Control and Communications Team Leader

    BACKGROUND

    Bob is a versatile principal consultant who is widely recognised as an independent, analytical thinker with a reputation for pragmatism. Bob is a an articulate communicator, with strong interpersonal skills. He is a proven leader who, during a 31 year career in the Royal Air Force, consistently enhanced the output of organizations large and small. A proven leader, he also accrued expertise of leading organizations during the planning and delivery of major equipment programmes.

    On the Advanced Command and Staff Course, Bob was awarded an MA Defence Studies (Distinction). Additionally, during his busy career, he found the time to earn an MBA (Merit), during which he specialized in organizational learning. 

    BACKGROUND

    Bob is a versatile principal consultant who is widely recognised as an independent, analytical thinker with a reputation for pragmatism. Bob is a an articulate communicator, with strong interpersonal skills. He is a proven leader who, during a 31 year career in the Royal Air Force, consistently enhanced the output of organizations large and small. A proven leader, he also accrued expertise of leading organizations during the planning and delivery of major equipment programmes.

    On the Advanced Command and Staff Course, Bob was awarded an MA Defence Studies (Distinction). Additionally, during his busy career, he found the time to earn an MBA (Merit), during which he specialized in organizational learning. 

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  • Meet some of our experts

  • Ricki Gleeson
    C2ISR Specialist

    BACKGROUND

    Ricki served 3.5 years in the Royal New Zealand Air Force, before joining the Royal Air Force. He spent the next 20 years in the Fighter Control Branch where he held a variety of Operational, training and management roles in both the ground and airborne environments. During the latter half of his career Ricki was selected for a post graduate (General Duties Aerosystems Course) course where he earned an MSc in Aeronautical Systems before his final tour at the UK MoD Defence Procurement Agency (Defence Equipment and Support, DE&S). Ricki retired from the RAF and joined 3SDL in November 2010.

    BACKGROUND

    Ricki served 3.5 years in the Royal New Zealand Air Force, before joining the Royal Air Force. He spent the next 20 years in the Fighter Control Branch where he held a variety of Operational, training and management roles in both the ground and airborne environments. During the latter half of his career Ricki was selected for a post graduate (General Duties Aerosystems Course) course where he earned an MSc in Aeronautical Systems before his final tour at the UK MoD Defence Procurement Agency (Defence Equipment and Support, DE&S). Ricki retired from the RAF and joined 3SDL in November 2010.

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  • Frazer Cumming
    Senior ISR Consultant

    BACKGROUND

    Frazer is a former Sea king MK7 (SKASaC) Observer and Qualified Instructor who has over 16years of Military Experience within the Royal Navy . During a varied career Frazer developed a deep understanding of a multitude of roles within the Air, Air/Land and Air/Maritime environment.

    BACKGROUND

    Frazer is a former Sea king MK7 (SKASaC) Observer and Qualified Instructor who has over 16years of Military Experience within the Royal Navy . During a varied career Frazer developed a deep understanding of a multitude of roles within the Air, Air/Land and Air/Maritime environment.

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  • Mark Barmby
    Cyber Expert

    BACKGROUND

    Mark joins 3SDL's growing Cyber team after five and a half years at PA Consulting, where he was a Managing Consultant and senior systems engineer in the Defence and Security Practice. In that role, Mark led a team of systems engineers providing consultancy and hands-on support to a range of clients delivering world leading technical capability.

    Mark will be leading 3SDL's growth of its Cyber business. He will build on our recently announced successes in delivering Cyber Vulnerability Investigation support to the MOD and help take the broad range of other Cyber services offered by 3SDL to new markets and clients. 

    BACKGROUND

    Mark joins 3SDL's growing Cyber team after five and a half years at PA Consulting, where he was a Managing Consultant and senior systems engineer in the Defence and Security Practice. In that role, Mark led a team of systems engineers providing consultancy and hands-on support to a range of clients delivering world leading technical capability.

    Mark will be leading 3SDL's growth of its Cyber business. He will build on our recently announced successes in delivering Cyber Vulnerability Investigation support to the MOD and help take the broad range of other Cyber services offered by 3SDL to new markets and clients. 

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  • Chris Dunn

    BACKGROUND

    Chris joined 3SDL as the Space specialist in Apr 18; he is one of the UK’s most experienced military Space Operators, with over 12 years working in direct space roles both within the UK and internationally with the US and NATO.

    Chris’ unusually wide-ranging experience means he can provide comprehensive knowledge, advice and support about the challenging and conflicted domain to all those seeking to understand it further.

    BACKGROUND

    Chris joined 3SDL as the Space specialist in Apr 18; he is one of the UK’s most experienced military Space Operators, with over 12 years working in direct space roles both within the UK and internationally with the US and NATO.

    Chris’ unusually wide-ranging experience means he can provide comprehensive knowledge, advice and support about the challenging and conflicted domain to all those seeking to understand it further.

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