UK Public Sector Contracts & Tenders

The Purification Equipment (PE) Contract shall deliver the supply and support of essential equipment needed to control the breathable atmosphere on board Submarines, including Authority training establishments. The services to be delivered throughout the Contract shall include Service Management in order to meet and deliver the contractual requirements, Obsolescence Management in order to proactively management obsolescence for all in-scope equipment, support to maintain a spares inclusive upkeep service including equipment procurement and delivery, and equipment upkeep management including strip, survey and repair of equipment, maintenance activity of equipment, technical support, Operational Defect (OpDef) and defect support, training services, and equipment installation. Post Design Services (PDS) shall be included to cover any work in scope of tasking.

This notice serves as an update to the PEDT announcement originally published on 3rd June 2025, which invited suppliers to express their interest in attending the Early Market Engagement event, the PEDT Supplier Conference, held on 4th July 2025. The purpose of this update is twofold: firstly, to inform suppliers of the ongoing and forthcoming market engagement activities; and secondly, to provide an opportunity for additional suppliers, who have engaged with the initial notice or attended the Supplier Conference, to express their interest in participating in these activities.

This is a calling notice for the SDA Platform and Equipment Delivery Team Early Market Engagement Event, please see the attachment for the full details of the Supplier Conference & how to apply to attend.

This engagement is designed to enable the Submarine Delivery Agency (SDA) to engage with the market to welcome innovative ideas on how to develop on the requirements for Soft Facilities Management (Soft FM) services at His Majesty’s Naval Base (HMNB) Clyde. The MOD team based at the Naval Base (NB) continues to develop the future requirements for the Soft FM services at HMNB Clyde. The Future Maritime Support Program (FMSP) contract for Soft FM managed and delivered at HMNB Clyde will expire in 2028, this notice commences Early Market Engagement (EME) activities for the Soft FM contract only. The Naval Support Integrated Global Network (NSIGN) Naval Base (NB) project seeks to replace the FMSP Soft FM contract between 2026 and 2028. FMSP contains a total of 10 contracts, the scope of which covers the provision of Naval Base Services, engineering management, delivery to Complex Warships (Type 45, QEC, Type 26, etc), and Submarine Engineering across 3 Naval Bases. Requests for participation in the event will be managed through the Defence Sourcing Portal – see link below.

The purpose of this PIN is to initiate market engagement. It is not being used as a call for competition. The PIN is intended as an information-gathering exercise. The Government is committed to providing a safe, secure, sustainable, and cost-effective solution for the disposal of the UK's legacy, current and future out-of-service nuclear-powered submarines. In line with this, the Ministry of Defence (MOD) has established the Submarine Disposal Capability (SDC) Project to conduct a strategic review of its Submarine Disposal Programme. A Market Interest Day (MID) was held on 6 July 2023 which; introduced the Submarine Disposal Programme and the SDC project, highlighted the current challenges within them and identified opportunities for Industry. Following the MID, the SDC project are hosting five themed engagement sessions, the details of which can be found in the Market Engagement Paper. The purpose of the themed engagements is to provide Industry with an opportunity for Q&As and discussion around relevant topic areas listed above. These sessions shall also allow MOD to understand more about the current capability, and skills base and particular areas of interest

The Government is committed to providing a safe, secure, sustainable, and cost-effective solution for the disposal of the UK's legacy, current and future out-of-service nuclear-powered submarines. In line with this, the Ministry of Defence (MOD) has established the Submarine Disposal Capability (SDC) Project to conduct a strategic review of its Submarine Disposal Programme. A Market Interest Day (MID) was held on 6 July 2023 which; introduced the Submarine Disposal Programme and the SDC project, highlighted the current challenges within them and identified opportunities for Industry. Following the MID, the SDC project are hosting five themed engagement sessions, the details of which can be found in the Market Engagement Paper. The purpose of the themed engagements is to provide Industry with an opportunity for Q&As and discussion around relevant topic areas listed above. These sessions shall also allow MOD to understand more about the current capability, and skills base and particular areas of interest. Additional information: How to apply 1) Complete the attached registration form and send a copy to the following email: sda-sdc@mod.gov.uk 2) Deadlines for each themed engagement session is detailed in the attached Market Engagement Paper Note: Depending on interest, we may limit attendees per company. All attendees must be UK Nationals. Open early engagement - This means that a procurement idea is currently active, it is in the early stage of development and judging interest from potential suppliers. Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process.

Provision of NEC4 Project Management software to assist Project Managers manage NEC4 Infrastructure Projects in HMNB Devonport & Rosyth

The planned procurement shall provide in-service support for Main Circulating Water Pumps (MCWPs) on board naval submarines. The primary body of work required will be the repair and refurbishment of existing pumps, for which it is essential that bidders either own or have unlimited access to a pump testing facility. Additionally, suppliers must have the storage capabilities to potentially accommodate several MCWPs at one time, as well as the supply-chain network to source its own parts and materials. This procurement is not anticipated to include within its scope the manufacture and purchase of new pumps. Potential suppliers must have the suitably qualified and experienced personnel to produce technical reports associated with health checks and strip and surveys, and the surveying capabilities to accurately estimate the cost and lead time of repairing pumps to an A1 standard. This procurement will be for a minimum 5-year contract term. The contract shall be competed under Procurement Act 2023 regulations and will be subject to the competitive flexible procedure.

The planned procurement shall provide in-service support for Main Circulation Water Pumps (MCWPs) on board naval submarines. The primary body of work required will be the repair and refurbishment of existing pumps, for which it is essential that bidders either own or have unlimited access to a pump testing facility. Additionally, suppliers must have the storage capabilities to potentially accommodate several MCWPs at one time, as well as the supply-chain network to source its own parts and materials. This procurement is not anticipated to include within its scope the manufacture and purchase of new pumps. Potential suppliers must have the suitably qualified and experienced personnel to produce technical reports associated with health checks and strip and surveys, and the surveying capabilities to accurately estimate the cost and lead time of repairing pumps to an A1 standard. This procurement will be for a minimum 5-year contract term. The contract shall be competed under Procurement Act 2023 regulations and will be subject to the competitive flexible procedure.

The service provider is required to bring a high level of knowledge and experience to the management of nuclear safety cases. It is important the service provider has experience of the MOD and the challenges of balancing a military operational programme with the high level of nuclear safety management expected from a nuclear regulator. The service provider will be expected to assimilate the requirements of HMNB Devonport nuclear safety management arrangements and work within this framework. At the same time, the service provider is expected to bring their wider experience to bear on these arrangements and support the Naval Base deliver a culture of continuous improvement for nuclear safety. The full scope of HMNB Devonport nuclear safety cases and supporting documentation is managed using a database tool called the Nuclear Authorised Documentation Review Programme (NADRP). The NADRP is used to track the status of all nuclear authorised documentation from cradle to grave; the service provider will be required to support documentation production and review tasks from the NADRP as required by the Naval Base Design Authority. Further to tasks contained in the NADRP, the service provider must be flexible and reactive to new document production tasks driven by the submarine operational programme, often working to tight deadlines. The service provider will be required to provide technical support to the Naval Base Periodic Review of Safety programme, managed by the Design Authority PRS Assistant Head role. This support will involve full-time assistance to the PRS lead, plus specific subject area review activity. Lastly, the service provider will be required to provide independent Intelligent Customer (IC) support to the Design Authority Safety Justification Delivery Manager (SJDM). SJDM is the Naval Base IC for the review, programming and delivery of NSSJ documentation. The civil service post holder requires the support of an experienced safety engineer to assess NSSJ documentation through production and due process. This function needs to be independent from document production.

This contract is for the provision of spares, repairs, technical support and Post Design Services for the following types of Submarine Valves, Actuators and their components for all In-service Submarines: ​ First Level Valves​ Non-First Level Valves​ First Level Actuators​ Non-First Level Actuators. ​ There will also be a small requirement for valves and actuators for RN surface fleet.​

This contract is for the provision of spares, repairs, technical support and Post Design Services for the following types of Submarine Valves, Actuators and their components for all In-service Submarines: ​ First Level Valves​ Non-First Level Valves​ First Level Actuators​ Non-First Level Actuators. ​ There will also be a small requirement for valves and actuators for RN surface fleet.​

This supersedes the previous notice due to a change in the procurement procedure; this is now a Competitive Flexible procedure. The service provider is required to bring a high level of knowledge and experience to the management of nuclear safety cases. It is important the service provider has experience of the MOD and the challenges of balancing a military operational programme with the high level of nuclear safety management expected from a nuclear regulator. The service provider will be expected to assimilate the requirements of HMNB Devonport nuclear safety management arrangements and work within this framework. At the same time, the service provider is expected to bring their wider experience to bear on these arrangements and support the Naval Base deliver a culture of continuous improvement for nuclear safety. The full scope of HMNB Devonport nuclear safety cases and supporting documentation is managed using a database tool called the Nuclear Authorised Documentation Review Programme (NADRP). The NADRP is used to track the status of all nuclear authorised documentation from cradle to grave; the service provider will be required to support documentation production and review tasks from the NADRP as required by the Naval Base Design Authority.Further to tasks contained in the NADRP, the service provider must be flexible and reactive to new document production tasks driven by the submarine operational programme, often working to tight deadlines. The service provider will be required to provide technical support to the Naval Base Periodic Review of Safety programme, managed by the Design Authority PRS Assistant Head role. This support will involve full-time assistance to the PRS lead, plus specific subject area review activity. Lastly, the service provider will be required to provide independent Intelligent Customer (IC) support to the Design Authority Safety Justification Delivery Manager (SJDM). SJDM is the Naval Base IC for the review, programming and delivery of NSSJ documentation. The civil service post holder requires the support of an experienced safety engineer to assess NSSJ documentation through production and due process. This function needs to be independent from document production.

UNIFORM / SPECIALIST CLOTHING SEAMSTER CONTRACT Royal Navy and Royal Marine (RN/RM) Service Personnel are required to meet the standards of dress detailed in Naval Personnel Management Regulations. Service personnel require a seamster service to ensure that standards are maintained in accordance with BRd3(1) para 3702. These services include the necessary alterations to Uniform Clothing together with the sewing on of required insignia and decorations.

Submarine Disposal Capability - Market Interest Day The Ministry of Defence (MOD) is holding a Submarine Disposal Capability market interest day on 6 July 2023. Hosted by the Director General Nuclear of the MOD and the Chief Executive Officer of the Submarine Delivery Agency, this is an important step towards establishing an enduring and resilient submarine disposal capability. The Submarine Disposal Capability Project has been established to inform a strategic investment decision. It will exploit lessons from the current Submarine Dismantling Project and the ongoing work in Devonport, encourage innovation and establish an enduring nuclear submarine disposal capability. Once established, this intergenerational capability will dispose of the UK's retired nuclear submarines and improve value for money for the UK taxpayer. Submarine disposal is considered across five core pillars: • Preparation for disposal. • Defueling. • Dismantling. • Recycling. • Waste management. The purpose of the market interest day is to: • Ensure awareness of the totality of the proposed submarine disposal capability. • Gauge the market's appetite, capacity and capabilities to dispose of retired nuclear submarines. • Provide the opportunity to discuss and inform the approach to submarine disposal. • Outline the MOD plans for future engagement. How to Apply To attend the event, you must complete the attached form and send a copy to SDA-SDC@mod.gov.uk no later than 1700 on 14 June 2023. Please note that this event will be hosted in-person. The location will be confirmed in the joining instructions. Please do not make any travel arrangements until you have received confirmation from MOD that your registration has been approved. Please be aware: • Depending on interest, we may limit attendees per company. • All attendees must be UK Nationals. Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process. Additional information: Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process.

Submarine Disposal Capability - Market Interest Day The Ministry of Defence (MOD) is holding a Submarine Disposal Capability market interest day on 6 July 2023. Hosted by the Director General Nuclear of the MOD and the Chief Executive Officer of the Submarine Delivery Agency, this is an important step towards establishing an enduring and resilient submarine disposal capability. The Submarine Disposal Capability Project has been established to inform a strategic investment decision. It will exploit lessons from the current Submarine Dismantling Project and the ongoing work in Devonport, encourage innovation and establish an enduring nuclear submarine disposal capability. Once established, this intergenerational capability will dispose of the UK's retired nuclear submarines and improve value for money for the UK taxpayer. Submarine disposal is considered across five core pillars: • Preparation for disposal. • Defueling. • Dismantling. • Recycling. • Waste management. The purpose of the market interest day is to: • Ensure awareness of the totality of the proposed submarine disposal capability. • Gauge the market's appetite, capacity and capabilities to dispose of retired nuclear submarines. • Provide the opportunity to discuss and inform the approach to submarine disposal. • Outline the MOD plans for future engagement. How to Apply To attend the event, you must complete the attached form and send a copy to SDA-SDC@mod.gov.uk no later than 1700 on 14 June 2023. Please note that this event will be hosted in-person. The location will be confirmed in the joining instructions. Please do not make any travel arrangements until you have received confirmation from MOD that your registration has been approved. Please be aware: • Depending on interest, we may limit attendees per company. • All attendees must be UK Nationals. Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process. Additional information: Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process.

The scope of this contract is to Supply and Support Single Use Air Purification Equipment (SSSUAPE) to all boats including Vanguard and Astute class submarines and any new classes of submarine that may be introduced during the lifetime of the Air Purification project. The Supply and Support of this equipment includes the procurement, the post design services and the provision of SQEP technical resource. This is an enduring requirement to the maintenance and ongoing safety ensuring Continuous At Sea Deterrent (CASD) and Safety of Life at Sea (SOLAS).

The Ministry of Defence (MOD) is holding a Submarine Disposal Capability market interest day to engage with potential suppliers who could establish an enduring and resilient submarine disposal capability. Please follow the attached link to the Defence Sourcing Portal to register for the event. https://contracts.mod.uk/esop/guest/go/opportunity/detail?opportunityId=56367 Please note that this is not a call for competition or a procurement exercise. This is an opportunity for the MOD to better understand the supplier market and for potential suppliers to provide feedback at a formative stage of the process.

The scope of this contract is to Supply and Support Single Use Air Purification Equipment (SSSUAPE) to all boats including Vanguard and Astute class submarines and any new classes of submarine that may be introduced during the lifetime of the Air Purification project. The Supply and Support of this equipment includes the procurement, the post design services and the provision of SQEP technical resource. This is an enduring requirement to the maintenance and ongoing safety ensuring Continuous At Sea Deterrent (CASD) and Safety of Life at Sea (SOLAS).