Brief your market
Who could bid the next time Ministry of Defence- Defence Infrastructure Organisation DIO tenders for construction — from published contract awards, not directories. A tender that reaches more proven suppliers gets more bids; more bids is the evidence of value for money.
Ring 1
Proven with you
Suppliers already holding a published Ministry of Defence- Defence Infrastructure Organisation DIO award in this category.
- FES Support Services Ltd1 award
RAF Lossiemouth Development Programme (LDP): Utilities - High Voltage (HV) Electrical Infrastructure Enhancements (EIE)
Ring 2
Proven with buyers like you
Suppliers who have won this category with other Defence buyers — ranked by how many different buyers they've won with. This is the shortlist that widens your field.
- Kier Construction Limited4 awards · 2 buyers · latest Jun 2023
Voluntary Transparency Notice Only - Project CUBIT Capital Works
- MORGAN SINDALL CONSTRUCTION & INFRASTRUCTURE LTD4 awards · 2 buyers · latest Mar 2026
IPMO1987 Project COOPER
- Ramboll UK Limited2 awards · 2 buyers · latest Nov 2023
TSP RAF Waddington AOS
- Kier Graham Defence Ltd2 awards · 2 buyers · latest Mar 2020
Provision of the New DIO Headquarters Building at DMS Whittington and Additional Car Parking Spaces
- WYG Management Services Limited2 awards · 2 buyers · latest Dec 2016
Provision of an Independent Tester to the PAC/ABP PFI
- LAGAN AVIATION & INFRASTRUCTURE LIMITED2 awards · 2 buyers · latest Sept 2024
RAF Waddington AOS - RIBA 2 - Early Contractor Involvement Surveys
- Mott MacDonald2 awards · 2 buyers · latest Mar 2024
RAF Shawbury - Runway and Associated Works(AOS) - Construction
- Ser Contractor Ltd5 awards · latest Feb 2026
Supply Chain Notice: FDIS - Marham External Refurbishments to 12 properties - FY2025/26 - Amey Central Region - East * Closing Date: (05/09/2025)
- Rubb Buildings Limited5 awards · latest Nov 2024
RNAS Yeovilton Temporary Hangar - Contract Award
- Lendlease Construction (Europe) Limited4 awards · latest Aug 2024
712204450 Kendrew Bks CPG Early Engagement Works
Showing 10 of 180.
Ring 3
Proven in the field
Suppliers winning this category anywhere in UK public procurement (excluding those already listed above).
- Willmott Dixon Construction Limited87 awards · 54 buyers · latest Jun 2026
Principle Contractor - Denmark Street, Eden, High Wycombe - DN723939
- Ian Williams Limited97 awards · 50 buyers · latest Mar 2026
CM78 - Flamborough Lighthouse Painting
- Bell Decorating Group Limited 79 awards · 46 buyers · latest Jul 2025
Internal and external decorating Summer 2025 - AWARD
- Novus property Solutions Limited78 awards · 41 buyers · latest Mar 2026
Kitchen and Bathroom Replacement Programme
- Novus Property Solutions Ltd74 awards · 41 buyers · latest Dec 2023
Merz Court External Facade Works
- Tarmac Trading Limited140 awards · 38 buyers · latest Jul 2026
M6 Bents farm - J45 NB & SB LCDF
- Axis Europe plc178 awards · 37 buyers · latest Jul 2026
Lambeth Red Labs Refurb-Upgrades AHU12&14
- Breyer Group Plc58 awards · 37 buyers · latest Nov 2024
GB-Duxford: AWARD NOTICE ~ Re-Roofing Works and Roof Repair Works at IWM Duxford
- Mitie Property Services (Uk) Ltd50 awards · 37 buyers · latest Oct 2024
Provision for LVRPA Myddelton House & Associated Buildings Redecoration - AWARD
- Overbury plc64 awards · 36 buyers · latest Mar 2026
Design and Build Construction Services
Showing 10 of 22,212.
The full list — for members
All 180 Defence suppliers in ring 2 (capped at 400, widest-proven first), copyable as a spreadsheet — so every proven supplier can hear about your next tender, not just the usual three.
Sources: published UK contract award notices in the rfp.quest corpus. “Proven” means a citable award — nothing here is inferred or scraped from directories. Award values are not summed because framework ceilings would inflate them.