Interserve plc

Interserve operates as a United Kingdom‑based defence contractor and Ministry of Defence service provider, delivering specialised support to military and government clients. In addition to its defence work, the organisation has provided services to healthcare infrastructure, notably during the pandemic when it assisted with the maintenance and operation of critical health facilities. Its core activities therefore span the defence and public‑health sectors, focusing on facilities management, logistics and ancillary support functions. The company trades under several aliases, including Interserve plc, Interserve Group Limited and Interserve UK, reflecting its corporate structure. As a public limited company headquartered in the United Kingdom, it is subject to UK corporate governance and regulatory requirements.

The organisation’s scale was highlighted in a May 20202020 cyberattack that compromised the personal and financial data of up to 100,000 current and former employees, including bank details, payroll information, next‑of‑kin contacts, HR files, absence records and pension data. The breach disrupted some operational services, prompting Interserve to work with national cybersecurity authorities and regulators to investigate and mitigate the incident. Despite the disruption, the company confirmed that it maintained critical service delivery while undertaking ongoing remediation efforts. This incident underscored the sensitivity of the data handled by a defence contractor that also supports healthcare systems. Interserve’s distinguishing attributes lie in its dual role as a MoD‑approved supplier and a provider of pandemic‑era healthcare support, positioning it at the intersection of national security and public health resilience.