Source: https://tendernation.io/opportunities/01a13bec-27de-73bc-b164-278a590b71ce/procurement-and-in-service-support-of-closed-circuit-mixed-gas-diving-life-suppo pending GB open procedure Suitable for SMEs # Procurement and In-Service Support of Closed-Circuit Mixed Gas Diving Life Support Systems [Defence Equipment and Support](https://tendernation.io/buyers/defence-equipment-and-support) Estimated value £19,166,667 Published 5 Oct 2026 Deadline Rolling deadline ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The Authority intends to procure approximately 200 closed-circuit mixed gas diving life support systems to replace and renew military diving capability for the Royal Navy and associated users undertaking underwater defence tasks. The capability is expected to remain in service for approximately 10 years and is intended to support worldwide operational deployments and training. The solution is expected to comprise a robust, low-maintenance, electronically monitored and controlled closed-circuit mixed-gas rebreather system with depth-appropriate bailout systems, low magnetic and acoustic signatures, and the ability to integrate with other life support systems. The solution is expected to support dry, wet and simulated training scenarios, including fault insertion for training purposes. It should be suitable for military diving operations across a wide range of operating environments whilst remaining operable in austere climatic conditions. The Authority is seeking improved dependability, employability and safety through enhanced human factors, reduced user burden, simplified maintenance and streamlined pre-dive preparation. The procurement is also expected to include associated training solutions, maintenance, technical documentation, spares and in-service support arrangements. This notice is provided for advance market awareness only and does not commit the Authority to undertake the procurement described. All aspects of the requirement, including scope, quantity, technical specification and timescales, remain subject to change. Read full description ## CPV classification Breathing apparatus for diving Source Find a Tender (UK) · Notice ocds-h6vhtk-078128-2026-10-05T17:22:41+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-078128-2026-10-05T17:22:41+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defence Equipment and Support: past awards and live tenders](https://tendernation.io/buyers/defence-equipment-and-support) [Sector More Musical, sports & leisure equipment tenders](https://tendernation.io/sectors/musical-sports-leisure-equipment) ## More tenders like this [Tender for the design and installation of a NEW PUMP track and associated works at omagh CO. tyrone · Fermanagh and Omagh District Council · 20 days left · 9 Nov 2026](https://tendernation.io/opportunities/01a1592e-efc7-71ad-9b79-c7b3298c5b15/tender-for-the-design-and-installation-of-a-new-pump-track-and-associated-works) [Gymnasium equipment – Einbausportgeräte, mobile Sportgeräte und Betriebsausstattung · Zweckverband Schulzentrum · 29 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a156a9-961f-72fa-b678-4e03537cd681/germany-gymnasium-equipment-einbausportgerate-mobile-sportgerate-und-betrie) [Playground equipment – ΔΙΑΚΗΡΥΞΗ · ΔΗΜΟΣ ΛΑΓΚΑΔΑ · 9 days left · 29 Oct 2026](https://tendernation.io/opportunities/01a156a9-8879-724f-9a05-b4549f762a2d/greece-playground-equipment-diakhryksh) [Fitness equipments – Dostawa wyposażenia sprzętowego z podziałem na 5 części · Uniwersytet Medyczny W Białymstoku · 30 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-8af2-73b5-ba28-6c23b07f94e4/poland-fitness-equipments-dostawa-wyposazenia-sprzetowego-z-podzialem-na-5-c) [Playground equipment – Kahden uniikin leikkivälineen hankinta Lappeenrannan kaupungille · Lappeenrannan kaupunki · 41 days left · 30 Nov 2026](https://tendernation.io/opportunities/01a15183-58f3-717a-a4a8-e0cdea8cb1e7/finland-playground-equipment-kahden-uniikin-leikkivalineen-hankinta-lappeenr) [Ice maintenance machines – Zakup lodowiska mobilnego wraz z niezbędną infrastrukturą w Gminie Miejskiej Jarosław w ramach zadania „Fizyczna odnowa przestrzeni publicznych Gmin MOF Jarosław – Przeworsk” - 2 części · Gmina Miejska Jarosław · 3 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-1f7d-71eb-ac02-3a6cc452d075/poland-ice-maintenance-machines-zakup-lodowiska-mobilnego-wraz-z-niezbedna-i)