About Us

How did we get here?

Our Story: A Veteran Owned Business

In 2011, after 23 years in the military, former helicopter pilot, Stuart Mckean set up Nine23, a leading UK cyber security company in his home office. Having experienced the problem many employees face in using better IT equipment to do their jobs effectively and securely, Stuart felt he could bring new insights to bear on the challenges of cyber security.

Stuart founded Nine23 with a commitment to more effectively enable end-users, in compliance and regulatory industries, who were often reliant on out-dated IT solutions.

Leading Nine23’s focused and skilful team alongside Stuart, former US Army acquisition officer, Ed Jesson, Nine23’s Chairman. Ed brings a depth of experience to Nine23, having founded and run multiple technology businesses for the last three decades. He continues to deliver insights to the team to ensure a balanced and stable future.

Our Leadership Team

Stuart McKean

CEO and Founder

Ed Jesson


Adam Gwinnett

Chief Technology Officer (CTO)

Julie Gordon

Chief Operating Officer (COO)

Stephen Jewell

Chief Revenue Officer (CRO)

Alasdair Shannon

Chief Growth Officer (CGO)

Our Advisory Board

James Illingworth OBE

Maggie Titmuss MBE

Michael Morgan (FCMA, FCT, MBA)

Andy Cash

“Your staff are friendly and funny, but most importantly, are highly competent, forward-thinking, go the extra mile and are constantly looking for ways to improve and gives us the service we require.”

Our Certifications and Accreditations

Nine23’s certifications and accreditations show our continuous commitment to industry compliance and regulations.

Security Clearance incl. Non-Police Personnel Vetting (NPPV) Level 3

Security Clearance (SC) is a status granted to individuals allowing them access to classified information (state or organisational secrets) or to restricted areas, after completion of a thorough background check.

All Nine23 operations staff have Security Clearance.

ISO 9001:2015 Quality Management system

ISO 9001:2015 Quality Management system is the international standard that specifies requirements for a quality management system (QMS). Organisations use the standard to demonstrate their ability to consistently provide products and services that meet customer and regulatory requirements.

ISO 9001 compliance is reviewed by an external auditor on an annual basis.

Health and Social Care Network (HSCN)

Nine23 are members of the Living Wage foundation, which campaigns for organisations in the United Kingdom to pay a living wage to their staff.

ISO/IEC 20000-1:2018 Service Management

ISO/IEC 20000-1:2018 Service Management is the global standard that describes the requirements for an information technology service management (ITSM) system to ensure that their ITSM process are aligned both with the needs of the business and international best practice.

ISO 20000 helps organisations benchmark how they deliver managed services, measure service levels and assess their performance.

Cyber Essentials Plus (CE+)

Cyber Essentials Plus (CE+) is a UK Government-backed, industry-supported certification scheme introduced in the UK by the National Cyber Security Centre to help organisations demonstrate operational security against common cyber-attacks. The Cyber Essentials scheme identifies some fundamental technical security controls that an organisation needs to have in place to help defend against Internet-borne threats.

Certification comes in two forms; the first stage is Cyber Essentials which is a self-assessment and the second stage is Cyber Essentials Plus (CE+) which is a more advanced level of certification carried out on the premises by a third-party auditor.

Public Services Network (PSN) Code of Service (CoS)

Nine23 has an established Public Services Network (PSN) Code of Service (CoS) compliance certificate. This enables us to provide services or applications available over the PSN to customers who need it and also publish services for others if required.

Public Sector information carried across the PSN is rated at OFFICIAL under the Government Security Classification Policy (GSC) for which we can design, build and support solutions.

ISO/14001:2015 Environmental Management System

ISO/14001:2015 Environmental Management System is an internationally agreed standard that sets out the requirements for an environmental management system. It helps organizations improve their environmental performance through more efficient use of resources and reduction of waste, gaining a competitive advantage and the trust of stakeholders.

Nine23 are compliant with ISO 14001.

ISO/IEC 27001:2013 Information Security Management System

ISO/IEC 27001:2013 Information Security Management System is the international standard that provides the specification for an information security management system (ISMS). ISO 27001 emphasises the importance of risk management, a formal, top management-driven process which provides the basis for a set of controls that help manage information’s security risks.
By implementing ISO 27001, Nine23 is able to secure information in all its forms, increase resilience to cyber-attacks, adapt to evolving security threats and reduce the costs associated with information security.

ISO 27001 compliance is reviewed by an external auditor on an annual basis.

Environmental Values

Nine23 are committed to environmental sustainability and achieving Net Zero emissions.

As a company, we recognise the urgent need to address climate change and reduce our environmental impact therefore, we have made a firm commitment to achieve 90% net zero emissions by 2050 and compensate for any emissions we cannot remove.

To achieve our net zero commitment, we are implementing a range of sustainability initiatives across our operations:

  • Renewable Energy: We are working with Southampton University Science park towards using renewable energy consumption and carbon footprint
  • Supply Chain Optimisation: We are working closely with our suppliers to ensure that they also adhere to sustainable practices, thereby reducing the overall carbon impact of our supply chain
  • Energy Efficiency: We are investigating in energy-efficient technologies and practises to minimise energy consumption and carbon footprint
  • On our way to Net Zero: Nine23 have been awarded the ‘On the road to Net Zero’ certification mark
  • Ambitious GHG reduction targets: Take action to restrict warming to less than 1.5 degrees. At least 30% reduction of our scope 3 emissions within 5 years and 90% reduction across all of our emissions, including scope 3 by 2050
  • Compensate for residual emissions: Once we reach the long-term reduction target, we will publish each year the validated annual footprint, targets, action taken and progress towards reaching net zero
  • Agree to publish GHG data: To demonstrate our commitment to transparency and advocacy, we will publish each year the validated annual footprint, targets, action taken and progress towards reaching net zero. See our 2022 total emissions. 2023 pending.

Transparency and Accountability

We understand the importance of transparency and accountability in our journey towards net zero. Therefore, we are committed to regularly communicating our progress, challenges, and achievements in reducing emissions. We believe that by being transparent about our efforts, we can inspire others and contribute to a collective movement towards a more sustainable future.

Engaging Our Stakeholders

We value the input and collaboration of our customers, employees, and other stakeholders in this journey towards net zero. We encourage you to share your thoughts, ideas, and feedback on how we can further improve our sustainability initiatives.

Nine23 are proud to be working in partnership with a number of global hi-tech companies and as part of the Trust X Alliance Global Goals Initiative, to address relevant areas of the UN Sustainable Development Goals.

Out of the 17 goals, 4 have been chosen with the intent that we can affect these areas the most. They are: Good Health and Well-Being (3), Gender Equality (5), Decent Work and Economic Growth (8), and Climate Action (13). Individually, Nine23 have our own targets, and are continually formulating improvements to our plan, to guarantee these goals are met.

The benefits that can be driven through social value can be a vital component in advancing equality, creating training and better employment opportunities.

The SME Climate Hub for small and medium-sized enterprises (SMEs) provides a one-stop-shop to make a climate commitment and access best-in-class tools and resources. They have partnered with Oxford University to support small businesses in reducing their carbon emissions and to provide climate solutions to contribute to climate action in society.

Nine23 has pledged their commitment to the SME Climate Hub.

Social Values

Nine23 are committed to social values through supporting charities and organisations.

Collaboration Tools

Nine23 are registered and approved by the following collaboration tools and platforms to meet your compliance needs.

Our History

Scroll through the years of our highlights.



  • Achieved ISO 14001
  • Launched a QuantumCloud service on G-Cloud 13
  • Signed strategic agreements with Arqit, Highside, Appgate
  • Signed a strategic 10 year agreement to support UK Law Enforcement
  • Signed up one of the Big 4 clients


  • Celebrated our 10 year anniversary!
  • Won Houses of Parliament Restoration and Renewal Contract


  • Achieved ISO/IEC 20000-1 the international standard that describes best practices for IT Service Management (ITSM)
  • Competed and selected to deliver the Food Standards Agency (FSA) a PSN gateway service.



  • Achieved full compliance to operate on the UK Public Services Network (PSN).
  • Achieved and granted Public Services Network (PSN) Code of Service to provide PSN Gateway services.



  • Became a limited company


  • Set up Nine23 in Stuart’s home office