Top suppliers
Top suppliers to Defence Infrastructure Organisation
Top-five suppliers hold 89% of contract value — a concentrated market.
Procurement categories
What Defence Infrastructure Organisation buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
45450000
4545000071350000
7135000009310000
0931000045230000
4523000045260000
4526000071540000
7154000071310000
7131000073120000
7312000031210000
3121000045310000
4531000072220000
7222000045250000
4525000079140000
7914000079110000
7911000050710000
5071000090460000
9046000022110000
2211000090710000
90710000Recent contracts
Latest Defence Infrastructure Organisation contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
TECHNICAL SUPPORT PROVIDER (TSP): MUNITIONS (DM) GOSPORT - WATERFRONT MUNITIONS HANDLING FACILITY (WMHF) - BEDENHAM PIER
Amentum Clean Energy Ltd · 2026-05-15
£4.5M
Sewage Treatment Plant Filter Replacement Belize
Jacopa Ltd · 2026-02-11
£100K
MCS User Manual
ATG Airports Limited · 2026-01-14
£28K
Belgium Gas & Electricity UK 5
Electrabel nv · 2025-12-22
£2.2M
Belgium Gas & Electricity
Electrabel nv · 2025-12-22
£2.2M
The commissioning of specialist legal services to support the department’s submission to the Armed Forces Bill. UK7
Forsters LLP · 2025-12-19
£100K
Service of the High Voltage and Low Voltage Electrical Equipment
Skyline Sales and Services Ltd · 2025-12-18
£74K
Kifaru Water Infrastructure Upgrade
EURO GULF KENYA CONSTRUCTION COMPANY LTD · 2025-12-18
£91K
Waste Removal and Maintenance at British Gurkhas Nepal
Shraya Nirman Sewa · 2025-12-15
£45K
Main Intake Substation High Voltage Switchgear Life Cycle Replacement
TROPICAL HOLDINGS LADYVILLE LTD · 2025-11-24
£750K
Wildlife Monitoring Programme Belize
University of Belize, Environmental Research Institute · 2025-08-13
£25K
Wattisham Bldg 700 Roof Repair - Works Contract
Henry Brothers Limited · 2025-07-31
£1.9M
DIO Brunei Electrical Works Services MTC
Massutera Engineering Sdn. Bhd. · 2025-07-31
£218K
UK7 - Contract Details Notice
ThinkIdea Limited · 2025-07-07
£800K
DIO Brunei Electrical Works Services MTC
Massutera Engineering Sdn Bhd · 2025-06-26
£218K
The Provision of Drainage Upgrade Services for the New Healthcare Facility Project at Leuchars Station
Veolia Water Outsourcing Limited · 2025-06-19
£805K
BIDDING AGAINST THESE SUPPLIERS?
See your match score against Defence Infrastructure Organisation
ENKII scores your business against live tenders and identifies the certifications you need to compete with the suppliers above.
Open opportunities
Open Defence Infrastructure Organisation tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
Fountain Lake Jetty - Main works contract
Defence Rental Accommodation Project
£700.0M
DM Gosport Waterfront Munitions Handling Facility (WMHF) Bedenham Pier - Works Contractor
£120.0M
Number One Officer's Mess at RAF Cranwell - Design and Refurbishment - UK1
£20.0M
MOD Shrivenham PFI Replacement - UK 1
£282.4M
715846472 - Estate Wide Stock Condition Surveys - UK2
Onsite Direct Wire Power Purchase Agreement Pilots
£246.9M
The supply of electricity to MOD sites in Northern Ireland
£18.0M
The supply of electricity to MOD sites in Northern Ireland
£18.0M
MOD Shrivenham PFI Replacement - UK 1
£282.4M
HMS Drake FM Services - UK 1
£268.0M
MOD Shrivenham PFI Replacement - UK 1
£282.4M
Offsite Direct Wire Power Purchase Agreement (RAF Wittering)
£36.5M
Works Contractor Fylingdales Powerhouse Facility - UK1
Works Contractor NADES Studdingsail - Wider Site - UK1
Works Contractor Military Working Dogs Odiham
Works Contractor Basing and Infrastructure for the New Medium Helicopter (NMH) Programme
TSP NADES Studdingsail - Wider Site - UK1
Defence Water Services Programme Scotland - UK1
£250.0M
Works Contractor Military Working Dogs Coningsby
Pipeline
Contracts expiring in the next 12 months
When these contracts end, Defence Infrastructure Organisation typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
Wattisham Bldg 700 Roof Repair - Works Contract
Expires: 2026-10-31
£1.9M
Main Intake Substation High Voltage Switchgear Life Cycle Replacement
Expires: 2027-03-29
£750K
DIO Estate Lens Enhancements 2025-27 with Option Year 26-27
Expires: 2027-03-31
£800K
DIO Estate Lens Enhancements 2025-27 with Option Year 26-27
Expires: 2027-03-31
£800K
PRIDE2 Construction Management RIBA4-6
Expires: 2027-04-28
£1.7M
Market analysis
Bidding into Defence Infrastructure Organisation — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
89%
Top-5 supplier share
112d
Avg response window
32d
Median response window
22mo
Avg contract duration
Frequently asked
Common questions about selling to Defence Infrastructure Organisation
How much does Defence Infrastructure Organisation spend on procurement?
Defence Infrastructure Organisation awarded 25 contracts totalling £50.7M between 2023-06-17 and 2026-06-17, working with 19 unique suppliers. Average contract value is £2.0M.
Who are Defence Infrastructure Organisation's top suppliers?
The largest suppliers to Defence Infrastructure Organisation by total award value are Galliford Try Construction Ltd, Amentum Clean Energy Ltd, Electrabel nv. The top five suppliers together hold 89% of contract value.
What does Defence Infrastructure Organisation buy from suppliers?
Defence Infrastructure Organisation's procurement is concentrated in 45450000, 71350000, 09310000, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for Defence Infrastructure Organisation contracts?
Defence Infrastructure Organisation 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 Defence Infrastructure Organisation tenders?
Defence Infrastructure Organisation typically gives suppliers a median of 32 days to respond (average 112 days). Standard contract duration is around 22 months.
Continue reading
Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
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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 Defence Infrastructure Organisation'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 2026-06-17
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.