Contracts Finder notice
CAS Proxy Migration
Authority: H M REVENUE & CUSTOMS
CPV: IT services: consulting, software development, Internet and support (72000000)
Published contract value£3,000,000Exc. VAT
Contract ends 31 Mar 2027
Awarded to Posterity Milestone Consortium
Contract starts 1 Apr 2026
What is being bought
Published requirement descriptionThis contract is to provide specific and in depth support to HMRC enabling data migration from legacy data infrastructure to the cloud.
This is a call off contract from G-Cloud 14 (RM1557.14)
Published procurement details
- Framework cited in notice
- G-Cloud 14 · RM1557.14
- Procedure
- Call-off from a framework agreement
- Buyer reference
- CW106690
- Category
- Services
- Tender status
- Complete
- Award status
- Active
- Suitable for SMEs
- Yes
- Suitable for voluntary, community and social enterprises
- No
- Tender deadline
- Procurement method
- Selective
- Item 1: Delivery locations as published
- United Kingdom
Key dates
Published dates- Award decision1 Apr 2026
- Contract starts1 Apr 2026
- Notice published30 Apr 2026
- Contract ends31 Mar 2027
Contracting authority & participating public bodies
- H M REVENUE & CUSTOMSContracting authority
- Identifier
- D25 · GB-GOR
Suppliers named on the notice
- Posterity Milestone ConsortiumSupplier
- Identifier
- 11164733 · GB-COH
- Voluntary, community or social enterprise
- No
- Business size
- SME
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
Source record
- Source
- Contracts Finder
- Notice language
- en
- Release reference
- ocds-b5fd17-282a2ad6-cc59-4b4d-b746-de4e7e4da8e9-2026-04-30T16:13:59+01:00
- Published
- 30 Apr 2026
- Latest update
- 30 Apr 2026
- Procedure reference
- ocds-b5fd17-282a2ad6-cc59-4b4d-b746-de4e7e4da8e9
- Contract reference
- ocds-b5fd17-282a2ad6-cc59-4b4d-b746-de4e7e4da8e9-1