Official UK procurement notice
Flexible benefits platform Darwin
Authority: Sovereign Network Group
What is being bought
Published requirement descriptionFlexible benefit platform Darwin, a single digital platform that enables SNG and its employees to manage and administer employee benefits
The lotProcurement structure
single lot · no lot value publishedProcedure terms & legal framework
From the official record- Procedure method
- Direct award
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Awarded without competition
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Direct award (no call for competition)
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 18 Sept 2026, 12:03 BST
- Last source update
- 8 Oct 2026, 12:23 BST
- Authority reference
PROC0905- FTS notice number
2026/S 000-095158- Latest notice
- Contract details notice (UK7)
- Delivery area
- Official registry OCID
ocds-h6vhtk-077552Find a Tender
- Why no open competition
- Single Suppliers Technical Reasons; Additional Repeat Extension Partial Replacement
- Published justification
This contract is for the continued provision of services by the incumbent supplier.
The existing platform is deeply integrated with SNG's core systems and supporting business processes. These integrations have been developed and refined over time and are critical to the effective delivery of the service.
For technical and interoperability reasons, a change of supplier at this time would create significant challenges in maintaining compatibility with SNG's existing systems, interfaces, data structures and operational processes. Transitioning to an alternative solution would require substantial redevelopment, testing and migration activity, resulting in significant implementation risk, additional cost and potential disruption to business operations.
A change of supplier during the proposed contract term would therefore create a material risk to service continuity and the effective operation of the integrated solution. Continued use of the incumbent supplier is considered necessary to ensure ongoing interoperability, maintain service stability and protect SNG's existing investment in the platform and its integrations.
The direct award will also provide SNG with sufficient time to review its benefits strategy and undertake a comprehensive assessment of the market. During this period, SNG will evaluate available solutions and market developments and determine whether a future competitive procurement exercise would offer improved value and outcomes. SNG anticipates completing this review and determining its future sourcing strategy within the next two to three years.
Notice history
4 events · 3 releases on Find a Tender · since 18 Sept 2026- Transparency notice published18 Sept 2026, 12:03 BSTUK5
- Contract award notice published18 Sept 2026, 15:10 BSTUK6
- Contract signature expected30 Sept 2026, 23:59 BSTscheduled
- Contract details notice published8 Oct 2026, 12:23 BSTUK7
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Mercer1 Oct 2026 – 30 Sept 2029Options: The contract includes an annual change budget to accommodate fluctuations in employee numbers. Should the number of employees exceed the minimum volumes agreed at contract award, additional services required for those employees will be purchased separately through the change at the applicable contract rates. | £466,680 | 18 Sept 2026 | Awarded |
Contracts
Flexible benefits platform Darwin · Mercer
- Signed
- 30 Sept 2026
- Value
- £478,759
- Period
- 1 Oct 2026 – 30 Sept 2029
- Status
- active
- Options
- The contract includes an annual change budget to accommodate fluctuations in employee numbers. Should the number of employees exceed the minimum volumes agreed at contract award, additional services required for those employees will be purchased separately through the change at the applicable contract rates.
No agreed KPIs: Not above £5 million
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- MERCER LIMITEDAwarded supplier
Official documents & specifications (3)
Official links; attachments are not copiedNotices published for this procedure
- Contract details notice Contract details notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Transparency notice Transparency notice on Find a Tender