Tom Black

Detica Group Plc provides business process consulting, information technology, and system implementation services. It also offers various solutions such as national security, compliance and risk, fraud and security, business intelligence, customer relationship management, and research authoring solutions as well as delivers transaction service level assurance. The company was founded in 1971 and is headquartered in Guildford, UK

The Black Family Charitable Trust provides charity services.

Herald Investment Trust Plc is a closed-end investment fund and investment trust. Its objective is to achieve capital appreciation through investments in smaller quoted companies, in the areas of technology, media and telecoms. The company was founded by Katie Potts in February 1994 and is headquartered in London, the United Kingdom.

Part of Thruvision Group Plc, Thruvision Ltd. is a British company that develops, manufactures, and sells people security screening technology to the security market. Thruvision is based in Abingdon, UK. The company provides fast, safe, and respectful people security screening for airports, surface transport, customs and borders, building entrances, and retail distribution centers. Thruvision resources include white papers, customer case studies, videos, and frequently asked questions. The company was founded in 2017, and the CEO is Colin Michael Evans.