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PROCUREMENT OPPORTUNITY

Provision of IT Security Solutions (2025)

National Museum of the Royal Navy · Tender notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 06:30.

Opportunity overview

The National Museum of the Royal Navy (NMRN) has reviewed its current cyber security stack and is looking to implement further measures to protect its systems, data and people. Solutions to be implemented should complement current security measures and enhance our visibility, understanding and response to cyber threats within the IT environment. The NMRN is reviewing its supply arrangements to ensure that it is aware of what the market currently has to offer and is in a position to select a supplier that is best able to deliver the National Museum's requirements over the next 3 - 5 years. The tender is split into three lots, which were able to be awarded either as a whole, multiples or as single awards upon evaluation.

Awarded to

Amounts belong to published awards or contracts. Where several suppliers share one value, it is labelled as shared and is not a supplier-specific allocation.

GRANT THORNTON UK ADVISORY & TAX LLP

Matched by number
Contract value
£173.6k
Awarded
Not supplied
Contract signed
27 Nov 2025
Including VAT
£208.3k
Award ID
1
Status
active
Identifier
GB-COH OC454533
Location
London, UKI31, EC2M 7EA, United Kingdom

BYTES SOFTWARE SERVICES LIMITED

Matched by number
Contract value
£36.8k
Awarded
Not supplied
Contract signed
2 Dec 2025
Including VAT
£44.2k
Award ID
2
Status
active
Identifier
GB-COH 01616977
Location
Leatherhead, UKJ26, KT22 7TW, United Kingdom

Classification

  • CPV48700000 — Software package utilities
  • CPV72000000 — IT services: consulting, software development, Internet and support

Lots

  • Lot 1- Managed Detect and Response (MDR)£177k
  • Email Security Solution£38k
  • Lot 3- Microsoft 365 Identity Security Solution£20k

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
NMRNO.2025.008
Status
complete
Above Threshold
Yes
Procurement Method
open
Main Procurement Category
services
How to submit
All bids must be submitted to tenders@nmrn.org.uk before the stated deadline. To ensure your documents are received it is recommended to email and express your interest in this tender in advance. To understand who the NMRN are please see www.nmrn.org.uk
Procurement Method Details
Open procedure

Amendments

Entry 1
Id
042043-2025
Description
Tweaked CPV codes
Entry 2
Id
042116-2025
Description
Value update.
Entry 3
Id
044783-2025
Description
Sample Contract Terms and Conditions added as a separate document
Entry 4
Id
046653-2025
Description
Issue 3 of clarifications added.

Legal basis

Id
2023/54
Scheme
UKPGA

Expected award period

Ends
12 Sept 2025, 23:59

Tender Period

Ends
18 Aug 2025, 12:00

Enquiry period

Ends
8 Aug 2025, 12:00

Submission terms

Electronic Submission Policy
allowed

Languages

en

Lots and requirements

Entry 1
Id
1
Title
Lot 1- Managed Detect and Response (MDR)
Status
complete
Has Renewal
Yes
Description
The NMRN is seeking a Managed Detect and Response (MDR) service to monitor activity across its IT estate and detect potential cyber threats. Full details in the ITT

Value

Amount
177,000
Currency
GBP
Including VAT
212,400

Renewal

Description
3 Year Initial Contract, with option to extend for further 2 years with satisfactory performance.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Please provide a case study for the proposed MDR service from an existing deployment
Type
quality
Description
Full details in the ITT

Numbers

Entry 1
Number
20
Weight
percentageExact
Criterion 2
Name
• Please confirm your average threat detection and response times
Type
quality

Numbers

Entry 1
Number
5
Weight
percentageExact
Criterion 3
Name
Please detail your OLA and SLA for the proposed service
Type
quality
Description
Full details in the ITT

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 4
Name
• Describe how the proposed MDR service supports the current requirements
Type
quality
Description
Full Details in the ITT

Numbers

Entry 1
Number
15
Weight
percentageExact
Criterion 5
Name
• Describe how the proposed MDR service meets the criteria set out in Annex A, section 4.
Type
quality

Numbers

Entry 1
Number
20
Weight
percentageExact
Criterion 6
Name
Please respond to the Appendix 1- Security Tender Questionnaire Lot 1 Tab-MDR Questionnaire
Type
quality
Description
See Appendix 1 Document.

Numbers

Entry 1
Number
30
Weight
percentageExact

Contract period

Ends
29 Sept 2028, 23:59
Starts
30 Sept 2025, 00:00
Max Extent Date
29 Sept 2030, 23:59
Entry 2
Id
2
Title
Email Security Solution
Status
complete
Has Renewal
Yes
Description
The NMRN uses Microsoft 365 Exchange for email services and the solution will need to be able to support this. The email security solution should also integrate with other security solutions, such as EDR, NDR and identity security solutions to enhance visibility of threats and help inform detection and response. Current contract is due to end in October 2025.

Value

Amount
38,000
Currency
GBP
Including VAT
45,600

Renewal

Description
3 Year Initial Contract, with option to extend for further 2 years with satisfactory performance.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Please confirm the solutions average threat detection and response times
Type
quality

Numbers

Entry 1
Number
15
Weight
percentageExact
Criterion 2
Name
Describe how the proposed email security solution supports the current requirements set out in Annex A
Type
quality
Description
Full details in the ITT.

Numbers

Entry 1
Number
20
Weight
percentageExact
Criterion 3
Name
Describe how the proposed email security solution meets the criteria set out in Annex A
Type
quality
Description
Full details in the ITT.

Numbers

Entry 1
Number
25
Weight
percentageExact
Criterion 4
Name
Please detail the reporting capabilities of the system.
Type
quality
Description
Full details for this question in the ITT.

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 5
Name
Please respond to the Appendix 1- Security Tender Questionnaire- Lot 2 Tab - Email questionnaire
Type
quality
Description
See Appendix 1 document for the relevant tab to complete.

Numbers

Entry 1
Number
30
Weight
percentageExact

Contract period

Ends
29 Sept 2028, 23:59
Starts
30 Sept 2025, 00:00
Max Extent Date
29 Sept 2030, 23:59
Entry 3
Id
3
Title
Lot 3- Microsoft 365 Identity Security Solution
Status
complete
Has Renewal
Yes
Description
The NMRN uses Microsoft 365 services throughout the business. This includes, Exchange, Azure/Entra, Microsoft Teams, SharePoint and OneDrive, Dynamics 365, Power Platform and Power BI. Entra Single Sign On is also configured on a number of 3rd party services. The identity security solution to be implemented should support these services to help monitor and protect accounts against malicious activity and compromise. Full details are in the ITT. Current contract concludes in October 2025.

Value

Amount
20,000
Currency
GBP
Including VAT
24,000

Renewal

Description
3 Year Initial Contract, with option to extend for further 2 years with satisfactory performance.

Suitability

Sme
Yes

Award criteria

Criteria

Criterion 1
Name
Please confirm the solutions average threat detection and response times
Type
quality
Description
Please see the ITT for full information.

Numbers

Entry 1
Number
15
Weight
percentageExact
Criterion 2
Name
Describe how the proposed identity security solution supports the current requirements set out in Annex A
Type
quality
Description
Please see the ITT for full information.

Numbers

Entry 1
Number
20
Weight
percentageExact
Criterion 3
Name
Describe how the proposed identity security solution meets the criteria set out in Annex A
Type
quality
Description
Please see the ITT for full information.

Numbers

Entry 1
Number
25
Weight
percentageExact
Criterion 4
Name
Please detail the reporting capabilities of the system.
Type
quality
Description
Please see the ITT for full information.

Numbers

Entry 1
Number
10
Weight
percentageExact
Criterion 5
Name
Please respond to the Appendix 1- Security Tender Questionnaire- Lot 3 Tab
Type
quality
Description
See Appendix 1 for the relevant tab for this Criterion.

Numbers

Entry 1
Number
30
Weight
percentageExact

Contract period

Ends
29 Sept 2028, 23:59
Starts
30 Sept 2025, 00:00
Max Extent Date
29 Sept 2030, 23:59

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom
Entry 5
Region
UK
Country
GB
Country Name
United Kingdom
Entry 6
Region
UK
Country
GB
Country Name
United Kingdom
Entry 7
Region
UK
Country
GB
Country Name
United Kingdom
Entry 8
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
48700000
Scheme
CPV
Description
Software package utilities
Entry 2
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support
Item 2
Id
2
Related Lot
2

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom
Entry 5
Region
UK
Country
GB
Country Name
United Kingdom
Entry 6
Region
UK
Country
GB
Country Name
United Kingdom
Entry 7
Region
UK
Country
GB
Country Name
United Kingdom
Entry 8
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
48700000
Scheme
CPV
Description
Software package utilities
Entry 2
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support
Item 3
Id
3
Related Lot
3

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom
Entry 5
Region
UK
Country
GB
Country Name
United Kingdom
Entry 6
Region
UK
Country
GB
Country Name
United Kingdom
Entry 7
Region
UK
Country
GB
Country Name
United Kingdom
Entry 8
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support

Published documents

Entry 1
Id
conflictOfInterest
Description
Not published
Document Type
conflictOfInterest
Entry 2
Id
A-3381
Format
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Description
Appendix 1 for relevant tabs to complete for the Lot you are submitting for.
Document Type
biddingDocuments
Entry 3
Id
A-3382
Format
application/vnd.openxmlformats-officedocument.wordprocessingml.document
Description
Main ITT Document.
Document Type
biddingDocuments
Entry 4
Id
042039-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
22 Jul 2025, 14:28
Entry 5
Id
042043-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
22 Jul 2025, 14:35
Entry 6
Id
042116-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
22 Jul 2025, 15:51
Entry 7
Id
A-3531
Format
application/pdf
Document Type
biddingDocuments
Entry 8
Id
043494-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
28 Jul 2025, 14:17
Entry 9
Id
A-3620
Format
application/pdf
Description
Standard Terms and Conditions Sample
Document Type
biddingDocuments
Entry 10
Id
044783-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
31 Jul 2025, 14:17
Entry 11
Id
A-3650
Format
application/pdf
Description
Clarification Points Schedule 2 Dated 31 July 2025
Document Type
biddingDocuments
Entry 12
Id
044810-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
31 Jul 2025, 14:46
Entry 13
Id
A-4079
Format
application/pdf
Description
Issue 3 of Clarification Questions and Responses
Document Type
biddingDocuments
Entry 14
Id
046653-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
6 Aug 2025, 16:08
Entry 15
Id
A-4155
Format
application/pdf
Description
Final Issue of Clarifications (Issue 4)
Document Type
biddingDocuments
Entry 16
Id
047358-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
8 Aug 2025, 15:19

Buyer, suppliers and contacts

Organisation 1
Id
GB-PPON-PZYJ-5834-NBRM
Name
National Museum of the Royal Navy

Roles

buyer

Address

Region
UKJ31
Country
GB
Locality
Portsmouth
Postal Code
PO1 3NH
Country Name
United Kingdom
Street Address
Main Road (PP66), HM Naval Base Portsmouth

Details

Classifications

Entry 1
Id
publicAuthorityCentralGovernment
Scheme
UK_CA_TYPE
Description
Public authority - central government

Identifier

Id
PZYJ-5834-NBRM
Scheme
GB-PPON

Contact

Name
Dave Hartley
Telephone
02392891370
Organisation 2
Id
GB-COH-OC454533
Name
GRANT THORNTON UK ADVISORY & TAX LLP

Roles

supplier

Address

Region
UKI31
Country
GB
Locality
London
Postal Code
EC2M 7EA
Country Name
United Kingdom
Street Address
8 Finsbury Circus

Details

Vcse
No
Scale
large

Identifier

Id
OC454533
Scheme
GB-COH

Contact

Additional Identifiers

Entry 1
Id
PPLQ-5161-PCVN
Scheme
GB-PPON
Organisation 3
Id
GB-COH-01616977
Name
BYTES SOFTWARE SERVICES LIMITED

Roles

supplier

Address

Region
UKJ26
Country
GB
Locality
Leatherhead
Postal Code
KT22 7TW
Country Name
United Kingdom
Street Address
Bytes House, Randalls Way

Details

Vcse
No
Scale
large

Identifier

Id
01616977
Scheme
GB-COH

Contact

Additional Identifiers

Entry 1
Id
PPDB-2731-YCDX
Scheme
GB-PPON

Award information

Award 1
Id
1
Status
active
Main Procurement Category
services

Items

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support
Item 2
Id
3
Related Lot
3

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support

Suppliers

Supplier 1
Id
GB-COH-OC454533
Name
GRANT THORNTON UK ADVISORY & TAX LLP

Related lots

1
3
Award 2
Id
2
Status
active
Main Procurement Category
services

Items

Item 1
Id
2
Related Lot
2

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
72000000
Scheme
CPV
Description
IT services: consulting, software development, Internet and support

Suppliers

Supplier 1
Id
GB-COH-01616977
Name
BYTES SOFTWARE SERVICES LIMITED

Related lots

2

Contracts and changes

Entry 1
Id
1
Title
Lot 1 & Lot 3 Contract Details
Status
active
Award ID
1
Date Signed
27 Nov 2025, 00:00
Has Renewal
Yes
Above Threshold
No

Value

Amount
173,580
Currency
GBP
Including VAT
208,296

Period

Ends
26 Nov 2028, 23:59
Starts
27 Nov 2025, 00:00
Max Extent Date
26 Nov 2030, 23:59

Renewal

Description
Optional 2 year extension- based on satisfactory performance judged by the NMRN's IT Team as contract managers.

Documents

Entry 1
Id
082274-2025
Format
text/html
Notice Type
UK7
Description
Contract details notice on Find a Tender
Document Type
contractNotice
Published
12 Dec 2025, 08:51
Entry 2
Id
2
Title
Lot 2 Contract Details
Status
active
Award ID
2
Date Signed
2 Dec 2025, 00:00
Has Renewal
Yes
Above Threshold
No

Value

Amount
36,837
Currency
GBP
Including VAT
44,204.4

Period

Ends
2 Dec 2028, 23:59
Starts
2 Dec 2025, 00:00
Max Extent Date
2 Dec 2030, 23:59

Renewal

Description
Optioned 2 year extension for satisfactory performance by NMRN IT Department.

Documents

Entry 1
Id
082274-2025
Format
text/html
Notice Type
UK7
Description
Contract details notice on Find a Tender
Document Type
contractNotice
Published
12 Dec 2025, 08:51

Recorded locations

  • Buyer location · Portsmouth · UKJ31 · PO1 3NH · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-0563e4-2025-12-12T08:51:15ZTender notice on Find a Tender ·