Contract 1
Supplier
Contract value
Before modification:
- £58,975 excluding VAT
- £70,770 including VAT
After modification:
- £165,300 excluding VAT
- £198,360 including VAT
180.29% increase
Above the relevant threshold
Contract modification date
28 January 2026
Effective date of the modification
28 January 2026
Contract dates
Before modification:
- 8 August 2025 to 30 June 2026
- 10 months, 24 days
After modification:
- 8 August 2025 to 31 October 2026
- Possible extension to 31 October 2027
- 2 years, 2 months, 24 days
149.25% increase
Justifications for contract modification
- Urgency and the protection of life, etc
Reason that these justifications apply
Urgency, as per PA23 Schedule 5 S.13
Other information
Conflicts assessment prepared/revised
Yes
Supplier
Ridge and Partners LLP
- Companies House: OC309402
The Cowyards Blenheim Park, Oxford Road
Woodstock, Oxfordshire
OX20 1QR
United Kingdom
Email: JCARTER@Ridge.co.uk
Region: UKJ14 - Oxfordshire
Small or medium-sized enterprise (SME): No
Voluntary, community or social enterprise (VCSE): No
Contract 1
Contracting authority
Serious Fraud Office
- Public Procurement Organisation Number: PZLQ-7427-JMLZ
2-4 Cockspur Street
London
SW1Y 5BS
United Kingdom
Email: commercial@sfo.gov.uk
Region: UKI32 - Westminster
Organisation type: Public authority - central government