| British intelligence and security organisation based in Cheltenham, Gloucestershire (inits) |
Mirror Quiz |
13 Mar 2025 |
| Cheltenham-based intelligence agency (inits)(4) |
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| UK intelligence org. |
The Telegraph Cross Atlantic |
20 Jul 2024 |
| British intelligence and security organisation based in Cheltenham, Gloucestershire (inits) |
Mirror Quiz |
26 Jan 2024 |
| Listening station of the British intelligence service (inits)(4) |
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| Organization based in the 'Doughnut' |
The Times Specialist Sunday |
06 Aug 2023 |
| Security agency headquartered at the Doughnut |
The Times Specialist Sunday |
30 Oct 2022 |