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PROCUREMENT OPPORTUNITY

IDAM Transformation - Expressions of Interest

Post Office Limited · Preliminary market engagement notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 11:23.

Opportunity overview

Post Office Ltd (POL) is undertaking a multi-phase Identity & Access Management (IDAM) Transformation Programme, comprising multiple work packages across Customer CIAM, PAM/IGA, migration from legacy platforms, and Zero Trust alignment. The procurement will be conducted as a Further Competition under the Crown Commercial Service (CCS) Technology Services 3 (TS3) Framework Agreement (RM6100), LOT 1 - Technology Strategy & Service Design and LOT 2 - Transition & Transformation in accordance with section 20 (1) and (2)(b) of the Procurement Act 2023. The purpose of this Expression of Interest (EOI) is to: • support the discovery, validation, and mobilisation of the Identity & Access Management (IDAM) workstream under the Post Office Cyber Security Maturity Programme (CSMP) • Identify suppliers on TS3 Lots 1 and 2 with demonstrable capability to deliver outcome-based IDAM solutions. • Generate a shortlist (approx. 5-6 suppliers) to invite to the formal Initial Invitation to Tender (IIT). • Inform refinement of the IIT scope and procurement plan. The total estimated value of this contract is between £4.5 million and £5 million over the full contract term. However, at the time of issuing this tender, only £800,000 has received formal funding approval. The remaining contract value is subject to annual approval by POL's Board, and there is no guarantee that future funding will be secured. This funding dependency is disclosed as a known risk in accordance with the Procurement Act 2023. Suppliers should be aware that: • POL is not obligated to commit beyond the currently approved funding. • Future contract performance may be subject to modification, suspension, or early termination if funding is not approved. Any such changes will be managed in accordance with the contract terms and applicable provisions of the Procurement Act 2023. To request to participate, bidders must respond to the Expression of Interest (EOI) and the Capability Assessment Questionnaire, register with POL's e-Sourcing platform, Web 3, complete, sign and return the non-disclosure agreement (NDA), conflict of interest form (COIF) and ethical walls agreements (EWA) (where required for incumbent suppliers) sent to the bidder. All Clarifications must be submitted by 12:00 on 27th October 2025. Responses to all Clarifications will be shared through the portal no later than 28 October 2025. Bidder's must complete the Expression of Interest Capability Assessment Questionnaire by no later than 12:00 GMT 31st October 2025. Participation in this procurement is strictly limited to bidders currently appointed to the Crown Commercial Service (CCS) Technology Services 3 Framework Agreement (RM6100) under LOT 1 - Technology Strategy & Service Design and LOT 2 - Transition & Transformation. Only bidders registered under these LOTs are eligible to participate in this procurement exercise. Bidders not registered under the RM6100 Framework (LOT 1 and LOT 2) are not permitted to submit an Expression of Interest (EOI) and will not be considered.

Classification

  • CPV72222300 — Information technology services

Lots

  • Lot 1Value not stated

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
ocds-h6vhtk-05d051
Status
planning
Above Threshold
Yes
Main Procurement Category
services

Legal basis

Id
2023/54
Scheme
UKPGA

Communication

Future Notice Date
17 Nov 2025, 23:59

Special regime

lightTouch

Lots and requirements

Entry 1
Id
1
Status
planning
Has Renewal
Yes

Suitability

Sme
Yes

Contract period

Ends
15 Mar 2027, 23:59
Starts
16 Mar 2026, 00:00
Max Extent Date
15 Mar 2028, 23:59

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
72222300
Scheme
CPV
Description
Information technology services

Planning and budget

Documents

Entry 1
Id
066925-2025
Format
text/html
Notice Type
UK2
Description
Preliminary market engagement notice on Find a Tender
Document Type
marketEngagementNotice
Published
21 Oct 2025, 08:22

Milestones

Entry 1
Id
engagement
Type
engagement
Status
scheduled
Due
31 Oct 2025, 23:59
Description
To request to participate, bidders must respond to the Expression of Interest (EOI) and the Capability Assessment Questionnaire, register with POL's e-Sourcing platform, Web 3, complete, sign and return the non-disclosure agreement (NDA), conflict of interest form (COIF) and ethical walls agreements (EWA) (where required for incumbent suppliers) sent to the bidder. All Clarifications must be submitted by 12:00 on 27th October 2025. Responses to all Clarifications will be shared through the portal no later than 28 October 2025. Bidder's must complete the Expression of Interest Capability Assessment Questionnaire by no later than 12:00 GMT 31st October 2025. Participation in this procurement is strictly limited to bidders currently appointed to the Crown Commercial Service (CCS) Technology Services 3 Framework Agreement (RM6100) under LOT 1 - Technology Strategy & Service Design and LOT 2 - Transition & Transformation. Only bidders registered under these LOTs are eligible to participate in this procurement exercise. Bidders not registered under the RM6100 Framework (LOT 1 and LOT 2) are not permitted to submit an Expression of Interest (EOI) and will not be considered.

Buyer, suppliers and contacts

Organisation 1
Id
GB-COH-02154540
Name
Post Office Limited

Roles

buyer

Address

Region
UKI31
Country
GB
Locality
London
Postal Code
EC2V 7ER
Country Name
United Kingdom
Street Address
100 Wood Street

Details

Classifications

Entry 1
Id
publicUndertaking
Scheme
UK_CA_TYPE
Description
Public undertaking

Identifier

Id
02154540
Scheme
GB-COH

Contact

Additional Identifiers

Entry 1
Id
PRNP-5883-YMLG
Scheme
GB-PPON

Recorded locations

  • Buyer location · London · UKI31 · EC2V 7ER · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-05d051-2025-10-21T08:22:56+01:00Preliminary market engagement notice on Find a Tender ·