List X / facility security clearance
Personnel clearance & vetting · awarded by MOD · serves: Defence security consultants
- Notices demanding it
- 52
- a floor
- Said “must”
- 19
- explicit obligation
- Open right now
- 0
- Value gated
- £2.1bn
- a floor
Published values on the notices that demand it — a floor, not a total.
The demand curve
Notices demanding it per 10,000 published, by year — rate-normalised so corpus growth never masquerades as demand. Complete years only.
The pale bars are 2025 onward. The Procurement Act went live on 24 February 2025 and changed how notices are written, so the step across that date is partly a change in convention and not only a change in demand. We have not measured how much of it is which, so please do not read this as a trend.
The receipts
Notices that demand it, and the sentence each demand was found in. Nothing is counted here without one.
- Application Development & Supportmandatory
Defence Equipment and Support
However, some apps may require libraries up to an including SECRET UK EYES ONLY meaning that the supplier will be required to hold Facility Security Clearance before contract award.
Ministry of Defence
The Installer shall hold List X status and Personnel must be a minimum of SC cleared with a number of DV cleared Personnel.
- JES/00141 - UW Supportmandatory
Ministry of Defence (Defence Equipment & Support)
Prospective suppliers will be required to hold List X status at Contract Award.
University of Wolverhampton
Lot 1 and Lot 2 The Tenderer must hold FSC accreditation
- Truro Pontoonsmandatory
CORNWALL COUNCIL
Decking must be sustainably sourced and FSC accredited, preferably hard wood.
Foreign Commonwealth and Development Office
Engagement is requested from UK companies that hold UK List X status and who are currently manufacturing next generation ECM equipment at a technology readiness level (TRL) of 8 (TRL 8 – actual technology completed and qualified through test and demonstration).
Battlefield Tactical Communications Systems, Stategic Command, Defence Digital, Ministry of Defence
Those suppliers which are successfully down selected should have List X or Provisional List X status by Contract Award.
UK Strategic Command, Commercial - Ministry of Defence
The contract will involve aspects that require the Contractor site to be granted a Facility Security Clearance (FSC) by its National/Designated Security Authority.
Ministry of Defence, Ships, Salvage and Marine Operations (S&MO)
The Authority require a UK List X supplier to deliver this requirement.
Ministry of Defence : Ministry of Defence
Provision of Data Storage List X
Ministry of Defence, ISTAR, Chemical, Biological, Radiological and Nuclear Delivery Team (CBRN DT)
There will be a requirement to operate this contract from a List X facility, therefore if not already List X you will be expected to achieve this accreditation by 31 October 2019.
Ministry of Defence, C&C, Other
Successful tenderers will need to be able to achieve List X prior to contract commencement status due to the cryptographic material associated with Typhoon.
See it live
No open tenders demand it at this moment — the list updates continuously.
Browse the tenders →Tell us what you already hold and we will show you which of these notices you were already eligible for — and what one more certificate would open.
Get set up free →Method: Every count here is a floor. We match the text of the notice, and a notice description is a summary — most tender packs demand things it never mentions.“Said must” counts only explicit obligation language in the matched sentence itself; anything ambiguous is counted as a mention, never as mandatory. Trend compares rates per 10,000 notices per complete calendar year.