Top suppliers
Top suppliers to Ofgem
Top-five suppliers hold 52% of contract value — a concentrated market.
Procurement categories
What Ofgem buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
7921000079410000722200007131000030210000716300007226000079110000661700004845000079310000722100007241000080420000793400007914000048510000723100007311000072910000Recent contracts
Latest Ofgem contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
2025-122- Cost Assessment Advisors to OFTO team for Tender & Policy
Grant Thornton UK Advisory & Tax LLP · 2026-07-24
£1.7M
2026-022 HR and Payroll Software (iTrent)
Softcat Plc · 2026-07-22
£885K
2026-003 Software and Hardware Asset Management System
Cdw Limited · 2026-07-22
£131K
2025-087- Financial Advisors to OFTO team for Tender & Policy
CEPA LLP · 2026-07-17
£7.9M
Supplier Risk Assessment and Financial Resilience Analysis
Moody's Analytics Uk Limited · 2026-07-13
£224K
2025-103- Technical advisors to OFTO team for Tender & Policy
Kelvin Construction Company Limited · 2026-07-08
£2.5M
2024-133 RIIO-3 Independent Technical Adviser
Kelvin Construction Company Limited · 2026-07-03
£20.8M
2025-014 - Administration of the Ofgem Energy Industry Voluntary Redress Fund
Energy Saving Trust Enterprises Limited · 2026-06-30
£3.0M
2026-051 Recruitment Campaign for Chief Economist
Saxton Bampfylde Hever · 2026-06-12
£52K
2026-050 Recruitment Campaign for CEO
Irg Advisors Llp (Trading As Odgers) · 2026-06-12
£78K
2026-029 Social Media Listening Tool
Fenix Media Limited T/A Pulsar (a Pulsar Group PLC company) · 2026-06-12
£129K
2025-058 Catering Consumables, Maintenance and Support Services
The Office Company Limited · 2026-06-05
£154K
2026-002 Locational Analytic Licenses
Esri (Uk) Limited · 2026-06-04
£100K
2026-016 Legal Support for CSR Project
Sharpe Pritchard Llp · 2026-05-19
£120K
2025-102 Corporate Responsibilities Project - Strategy and Policy Review
Deloitte · 2026-05-19
£148K
provision of Vantage components and Non-Domestic Renewable Heat Incentive (NDRHI) scheme CRM support services
Cantata Limited · 2026-05-15
£750K
FOR PROVISION oF Vantage Components of the Non-Domestic Renewable Heat Incentive (NDRHI) Scheme.
Cantata Limited · 2026-05-15
£750K
For provision of Vantage components and Non-Domestic Renewable Heat Incentive (NDRHI) scheme CRM support services
Cantata Limited · 2026-04-27
£750K
2025-086 - Data Leaders Subscription
IQ Data Group Limited · 2026-04-24
£113K
2025-119 Supply, Delivery & Installation of Office Pods
Tsunami Axis Ltd · 2026-04-20
£96K
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Open Ofgem tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
2025-103 Technical Advisors to OFTO Team for Tender & Policy
£2.9M
2025-087 Financial Advisors to OFTO Team for Tender & Policy
£11.3M
Administration of the Ofgem Energy Industry Voluntary Redress Fund
£3.0M
2024-133 RIIO-3 Independent Technical Advisor
Administration of the Ofgem Energy Industry Voluntary Redress Fund
2024-057 RO FIT CFD Targeted Audits and Stat Audits
Smart Meter communication Licence Opportunity - Webinar Notification
BUS Stat and Targeted Audits
DRHI Statistical and Targeted Site Audits
DRHI Statistical and Targeted Site Audits
2024-030
Hydrogen Likely Areas Study
2025-108 Accredited MSc Programme in Energy Regulation
£450K
Pipeline
Contracts expiring in the next 12 months
When these contracts end, Ofgem typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
2025-053 Legal Support for RIIO-ET3 ITA
Expires: 2026-09-03
£100K
2025-064 Recruitment Campaign for COO
Expires: 2026-09-07
£66K
Business Change, Communications & Engagement Services
Expires: 2026-09-23
£401K
2025-073 Recruitment Campaign for CTO
Expires: 2026-09-28
£52K
2025-047 Qlik Annual Maintenance
Expires: 2026-09-30
£49K
Heat Networks Authorisation Conditions
Expires: 2026-09-30
£450K
Public Key Infrastructure Health Check
Expires: 2026-10-10
£50K
2025-093 Centre of Excellence Optimisation (Salesforce)
Expires: 2026-10-15
£500K
Enterprise Backup Solution
Expires: 2026-10-31
£230K
Consultancy support to establish the new DCC price control framework
Expires: 2026-11-30
£210K
Threat Intelligence Platform
Expires: 2027-01-12
£200K
Salesforce CRM and Intelligent Workflow Licenses and Associated Services
Expires: 2027-02-18
£830K
Digital and Business Change Transformation
Expires: 2027-02-28
£461K
Licenses, Hosting, and Implementation of the Audit Portal
Expires: 2027-03-31
£360K
Independent Audit completed by an RO participant following Enforcement Investigation
Expires: 2027-03-31
£330K
2026-016 Legal Support for CSR Project
Expires: 2027-03-31
£120K
2025-054 Public Affairs Support
Expires: 2027-03-31
£210K
2026-050 Recruitment Campaign for CEO
Expires: 2027-05-25
£78K
2026-051 Recruitment Campaign for Chief Economist
Expires: 2027-05-25
£52K
Recruitment Copy and Advertising
Expires: 2027-06-11
£924
HR and Payroll Software System
Expires: 2027-06-30
£750K
2025-070 AV Refresh - 10SC Arena
Expires: 2027-07-04
£217K
Bank & ID Verification Service
Expires: 2027-07-31
£163K
Huddle Licences & Technical Support
Expires: 2027-07-31
£278K
Secure Design and Cyber Assurance Service
Expires: 2027-08-01
£750K
Market analysis
Bidding into Ofgem — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
52%
Top-5 supplier share
30d
Avg response window
29d
Median response window
27mo
Avg contract duration
Frequently asked
Common questions about selling to Ofgem
How much does Ofgem spend on procurement?
Ofgem awarded 164 contracts totalling £182.3M between 2023-08-01 and 2026-08-01, working with 122 unique suppliers. Average contract value is £1.1M.
Who are Ofgem's top suppliers?
The largest suppliers to Ofgem by total award value are Black & Veatch (U.K.) Limited, Kelvin Construction Company Limited , SATIGO Ltd (2023-040A). The top five suppliers together hold 52% of contract value.
What does Ofgem buy from suppliers?
Ofgem's procurement is concentrated in accounting and auditing services, business and management consultancy services, systems and technical consultancy services, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for Ofgem contracts?
Ofgem publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.
What's the typical response window for Ofgem tenders?
Ofgem typically gives suppliers a median of 29 days to respond (average 30 days). Standard contract duration is around 27 months.
Continue reading
Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is Ofgem's largest spend area.
INDEX
All UK public-sector buyers
Browse procurement profiles for every UK government department and major buyer.
Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-08-01
This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.
Source portals
- · Find a Tender (find-tender.service.gov.uk)
- · Contracts Finder
- · Spend Network
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.