Tender

Supply of Public Key Infrastructure (PKI) Hardware Appliance

UNITE PROCUREMENT UK LIMITED

This public procurement record has 1 release in its history.

Tender

23 Feb 2026 at 09:21

Tender Notice
Summary of the contracting process

Unite Procurement UK Limited, representing the Ministry of Defence, is seeking suppliers for the provision of Public Key Infrastructure (PKI) Hardware Appliance. The procurement process, managed through the selective method as a catalogue purchase, is currently in the tender stage. The contract, valued at £340,000, entails supplying appliance hardware and licensing for a PKI platform, beginning on 17 March 2026 and concluding on 17 March 2030. Located in the United Kingdom, this goods procurement falls under the "Direct-access storage devices" industry category. The tender period ends on 16 March 2026, providing a significant opportunity for interested suppliers to express their interest by contacting Unite Procurement UK Limited.

This tender presents a substantial business growth opportunity, particularly for small and medium-sized enterprises (SMEs) and voluntary, community and social enterprises (VCSEs). Engaging in this tender could enable companies capable of delivering robust PKI solutions and hardware appliances to enter or expand within the defence sector. With the Ministry's focus on maintaining a dynamic and responsive supplier network, companies with expertise in certificate authority functions, high-availability systems, and secure hardware configurations will find this procurement particularly aligning with their capabilities, enabling them to establish or strengthen collaborations with UK public sector organisations.

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Notice Information

Notice Title

Supply of Public Key Infrastructure (PKI) Hardware Appliance

Notice Description

Supply of Public Key Infrastructure (PKI) Hardware Appliance Unite Procurement UK Limited (part of Unite Holding SE), on behalf of the Ministry of Defence, is seeking suppliers to join the Unite Procurement Platform to support the supply of Public Key Infrastructure (PKI) Hardware Appliance. The Unite Procurement Platform (Unite | Simplify indirect procurement with our smarter platform) offers a compliant route to market for UK Public Sector organisations to manage low-value, high-volume procurement. Description of Requirements PKI Platform * Full Certificate Authority (CA), Registration Authority (RA), and Validation Authority (VA) functions * Support for X.509 certificate issuance across classified and unclassified domains * Compatibility with industry-standard enrolment protocols (SCEP, EST, ACME, CMP) * Integration with Microsoft AD Certificate Auto Enrollment * API-based integration (REST and web services) Appliance Hardware * Secure, hardened rack mount appliance * Redundant SSDs * Redundant power supplies * ECC or equivalent error tolerant memory * Defence grade hardening and assurance High Availability & Scalability * Support for multi node, geographically distributed resilience * Real time replication and clustering * Scalable certificate capacity (minimum 2,500 certificates, with growth to millions) Management & Security * Web-based administrative interface appropriate for restricted environments * Full audit logs and compliance reporting * Secure update mechanism * Backup and disaster recovery functionality * Alignment with MOD security policies and Zero Trust initiatives Contract Scope * Supply of appliance(s) * PKI platform licensing * HSM capability * Implementation, integration, and configuration * Ongoing support and maintenance How to Apply Interested suppliers should register their interest by contacting Unite Procurement UK Limited and provide details of their product range, modification capabilities, and maintenance services. Further information on the onboarding process for the Unite Procurement Platform will be provided upon expression of interest and can also be found at the link attached. Unite Procurement UK Limited does not intend to appoint a sole supplier for this requirement. Instead, multiple suppliers may be onboarded to the Unite Procurement Platform to ensure a diverse and competitive supply base, supporting flexibility and choice for the Ministry of Defence and associated organisations. Suppliers are encouraged to express their interest by the stated closing date to ensure early consideration. However, applications to join the Unite Procurement Platform will be welcome at any time beyond the initial deadline. Unite Procurement UK Limited reserves the right to review and onboard new suppliers on a rolling basis to meet evolving requirements and to maintain a dynamic and responsive supplier network. For any enquiries an interest, please email defence.support@unite.eu with the subject title ''TSS 584 ''

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-4f417089-d0ae-45e8-994c-08631734cf3a
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/e330af98-b726-4b53-9872-deb637ceab5e
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Selective
Procurement Method Details
Catalogue purchase
Tender Suitability
SME, VCSE
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

30 - Office and computing machinery, equipment and supplies except furniture and software packages

CPV Codes

30233140 - Direct-access storage devices (DASD)

Notice Value(s)

Tender Value
£340,000 £100K-£500K
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
23 Feb 20266 days ago
Submission Deadline
16 Mar 20262 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
17 Mar 2026 - 17 Mar 2030 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
UNITE PROCUREMENT UK LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
WC2B 5AH
Post Town
Central London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI36 Camden
Delivery Location
Not specified
Local Authority
Camden
Electoral Ward
Holborn & Covent Garden
Westminster Constituency
Holborn and St Pancras

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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