StirlingX
UK company, founded 2025, building a sovereign data intelligence and autonomy platform for defence and critical national infrastructure operators.
Last refreshed: 14 July 2026 · Appears in 1 active topic
Can StirlingX build a Five Eyes-grade data platform Britain's defence sector will trust?
Timeline for StirlingX
Mentioned in: Helsing picks Plymouth for £350m plant
UK Startups and InnovationRaised a GBP15m Series A for a sovereign defence data platform
UK Startups and Innovation: StirlingX raises GBP15m for defence dataWhat does StirlingX build?
Who led StirlingX's Series A?
When was StirlingX founded?
Background
StirlingX closed a GBP15 million Series A on 1 July 2026, led by Ventura Capital alongside Rokos Capital Management, to scale a sovereign data intelligence and autonomy platform for defence ministries and critical infrastructure operators.
Founded in 2025 and chaired by a former director of GCHQ, the company builds tools to capture, secure, fuse, analyse and act on data drawn from contested and high-security environments, pitching itself as a Five Eyes-grade alternative to relying on foreign cloud and analytics vendors. The Series A follows an $11 million seed round closed only months earlier, reflecting rapid commercial traction with government and defence customers.
The round sits within a wider push by UK investors into sovereign-capable defence technology, as governments seek data platforms they control end-to-end rather than depend on foreign hyperscalers, a theme running through several of 2026's UK deep-tech raises.
