Source: https://tendernation.io/opportunities/01a13b88-1387-7386-bfe2-7e5c10c28b77/visi-technical-toolkit-support-maintenance-and-development-interim-contract awarded GB negotiated without publication procedure # VISI Technical toolkit Support, Maintenance and Development (interim contract) [Radioactive Waste Management - Nuclear Decommissioning Authority](https://tendernation.io/buyers/radioactive-waste-management-nuclear-decommissioning-authority) Estimated value Not stated Published 29 Jul 2021 Deadline Rolling deadline ## About this tender Radioactive Waste Management Limited (the Contracting Authority) entered into a call-off contract with Tessella Limited (the Contractor) for the VISI Safety Case Management System Development ('the 2020 Contract') (RWM348-01) on 31 July 2021. This VEAT notice is in respect of proposed modifications to the Contract awarded. It is not the award of a new contract. An up to eight month extension to the 2020 Contract is urgently required so that there is no gap in the services provision. See additional information given in the sections below. ## CPV classification Industry specific software development services Industry specific software package Source Find a Tender (UK) · Notice ocds-h6vhtk-02ce5b-2021-07-29T19:14:05+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-02ce5b-2021-07-29T19:14:05+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 Radioactive Waste Management - Nuclear Decommissioning Authority: past awards and live tenders](https://tendernation.io/buyers/radioactive-waste-management-nuclear-decommissioning-authority) [Sector More IT services tenders](https://tendernation.io/sectors/it-services) ## More tenders like this [SONI090 – Client-Side Advisor · SONI Ltd · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a154e4-4736-72ba-9b73-0e325c4a96e5/soni090-client-side-advisor) [Software implementation services – DNS - Metada Platform - licence a související implementační, konzultační, analytické a školicí služby · DIAMO, státní podnik · 36 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15183-8989-719a-85fd-f036dc09b9df/czechia-software-implementation-services-dns-metada-platform-licence-a-s) [IT services: consulting, software development, Internet and support – Integrale ICT-dienstverlening · Stichting TWijs · 42 days left · 30 Nov 2026](https://tendernation.io/opportunities/01a15183-8078-70d7-8df3-40f25f4d83c5/netherlands-it-services-consulting-software-development-internet-and-suppor) [Software supply services – CRE\_2026\_092 Renouvellement des licences Varonis · CREOS Luxembourg S.A. · 27 days left · 15 Nov 2026](https://tendernation.io/opportunities/01a15183-411c-7086-9da9-540c2fa32c64/luxembourg-software-supply-services-cre-2026-092-renouvellement-des-licences) [Software supply services – Vergabe zur Ablösung der bestehenden SAP-Lösung im Bereich Personal · Westfälische Verkehrsgesellschaft mbH · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-0636-71ff-ab09-9dda4a94f77c/germany-software-supply-services-vergabe-zur-ablosung-der-bestehenden-sap-lo) [Computer facilities management services – IT-tjänster · Kalmar Läns Museum · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-8774-723e-83a8-af2cae60c2ed/sweden-computer-facilities-management-services-it-tjanster)