How UK defence procurement works
The Ministry of Defence (MOD) is one of the largest single buyers in the UK public sector, with an annual procurement budget exceeding £20 billion. Defence Equipment and Support (DE&S) is the main arm responsible for buying, maintaining, and supporting military equipment and services. Defence Digital manages technology and digital programmes. The Defence Infrastructure Organisation (DIO) is responsible for built estate, accommodation, and property services across the defence estate.
Procurement routes in defence include open competition (required for above-threshold contracts under the Procurement Act 2023), competitive dialogue (common for complex bespoke requirements), and single-source contracts (where only one supplier is capable of delivering). The MOD has a stated commitment to increasing SME participation in its supply chain, and a proportion of direct contracts and subcontract opportunities are specifically targeted at SMEs. The Defence and Security Accelerator (DASA) provides a separate route to market for innovative technology companies.
Types of defence tenders
IT and digital services: Cyber security, software development, cloud infrastructure, data analytics, and managed IT services are a major and growing area of defence procurement. Many contracts fall under the G-Cloud framework or bespoke competitive procurements. CPV codes include 72000000 (IT services), 72212000 (software development), and 48000000 (software packages).
Professional and advisory services: Programme management, systems engineering support, training design, and management consultancy are procured by DE&S, DIO, and Defence Digital. CPV codes include 73000000 (research and development), 79400000 (business and management consultancy), and 80000000 (education and training).
Construction and infrastructure: The Defence estate covers approximately 1 per cent of UK land. DIO manages construction, refurbishment, and maintenance across barracks, airfields, naval bases, and training areas. CPV codes include 45000000 (construction work) and 71000000 (architectural and engineering services).
Logistics and supply chain: Distribution, warehousing, and supply chain management services. CPV code 63000000 (supporting and auxiliary transport services).
Maintenance and support: Equipment maintenance, technical support, and through-life support contracts. CPV codes include 50000000 (repair and maintenance services).
Training: Personnel training, simulator operation, and leadership development. CPV code 80000000 (education and training).
Where defence tenders are advertised
Find a Tender: Above-threshold MOD contracts must be published on FTS under the Procurement Act 2023. TenderSignal includes the full FTS feed. MOD Defence Sourcing Portal (DSP): The MOD's own Jaggaer-based portal for defence-specific procurement. TenderSignal monitors public notice listings on DSP. CompeteFor: The supply chain subcontract opportunity portal used by major defence prime contractors. TenderSignal includes the full CompeteFor feed, surfacing supply chain opportunities that do not appear on FTS. DASA: The Defence and Security Accelerator publishes innovation competitions and Open Call funding opportunities separately from mainstream procurement.
Security clearance and eligibility
Many defence contracts require staff to hold security clearance, typically Baseline Personnel Security Standard (BPSS) for general access, Security Check (SC) for access to sensitive information, or Developed Vetting (DV) for the most sensitive programmes. Some equipment categories involving US-origin technology are subject to ITAR export control requirements. JOSCAR (Joint Supply Chain Accreditation Register) is the pre-qualification standard used by many prime defence contractors and is a practical prerequisite for supply chain opportunities.
How TenderSignal covers defence procurement
TenderSignal aggregates MOD Defence Sourcing Portal public notice listings, the full Find a Tender feed including all MOD and defence agency notices, and CompeteFor supply chain opportunities into a single matched feed. Set your CPV codes and contract value range and receive a daily digest of matched defence opportunities without manually monitoring each source.
Create a free account to browse live defence and MOD tenders now.
Defence tender FAQ
Do I need security clearance to bid for defence contracts?
Not always. Many MOD service contracts -- professional services, training, construction, and logistics -- do not require security clearance for the bidding stage. Clearance requirements apply to staff who need access to classified information or sensitive facilities during contract delivery. The contract notice will specify clearance requirements.
What is the MOD Defence Sourcing Portal and how do I register?
The MOD Defence Sourcing Portal (DSP) is the Jaggaer-based procurement platform used by the Ministry of Defence and its agencies. Suppliers register at no cost on the DSP website by completing a supplier profile and providing company information. Registration gives access to invitation-to-tender documents and allows electronic submission of responses. TenderSignal alerts you when relevant DSP notices are published so you know when to register for specific competitions.