Brief your market
Who could bid the next time DIO Commercial tenders for engineering & architecture — 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 DIO Commercial award in this category.
- Arcadis LLP3 awards · latest Jan 2024
RAF Boulmer (BM Forces) - TSP Contract
- Morgan Sindall Construction & Infrastructure Ltd1 award · latest Jul 2023
Re-provision of YUAS & RPC to RAF Leeming
- Mott MacDonald Limited1 award · latest Jul 2023
Technical Support Provider (TSP) Assurance at Talbot Gateway, Defence Business Services (DBS), Workplace Programme (WPP) North West
- Perfect Circle JV1 award · latest Jul 2023
TECHNICAL SERVICES SUPPORT FOR THE VACATION OF LINTON ON OUSE
- Perfect Circle JV Limited1 award · latest May 2023
RAF Little Rissington NEC Supervisor
- Tetra Tech Management Services Limited1 award · latest Mar 2021
Contract Award - 701501374 - TSP FOR AA RANGES ENHANCEMENT PROJECT
Ring 2
Proven with buyers like you
Suppliers who have won this category with other Other buyers — ranked by how many different buyers they've won with. This is the shortlist that widens your field.
- WSP Uk Limited118 awards · 40 buyers · latest May 2026
SE - CCS CPS1 - Lot 1 - Principal Designer - WSP - CPS1-47625-2026
- ridge and partners llp74 awards · 35 buyers · latest Jun 2026
FCDO Port Louis New HC Residence Project Stage 4 Design Peer Review Services
- Aecom Limited68 awards · 34 buyers · latest Jun 2026
Asset Health Metrics Pilot
- Atkins Limited70 awards · 30 buyers · latest Jun 2025
P2 - Provision of technical author support
- Aecom Ltd105 awards · 29 buyers · latest Apr 2026
Traffic Signal Bus Priority 2025/26 Batch 2
- WSP UK Ltd 121 awards · 26 buyers · latest Jul 2026
HPA - Update of Qualitative Risk Assessment, Land Quality Register & Map and APC
- Aecom205 awards · 24 buyers · latest Jan 2025
Programme Project Controls Team
- Arcadis Consulting (UK) Limited39 awards · 22 buyers · latest Jul 2026
CHX Update Qualitative Risk Assessment, Land Quality Register & Map and APC
- Pick Everard53 awards · 20 buyers · latest Jun 2026
Members' Tea Room Refurbishment Project - MDS4001
- Mott Macdonald Limited41 awards · 19 buyers · latest Dec 2025
Technical Advisor to the DESNZ Sizewell C team
Showing 10 of 6,451.
Ring 3
Proven in the field
Suppliers winning this category anywhere in UK public procurement (excluding those already listed above).
- Ove Arup & Partners Limited123 awards · 64 buyers · latest Jul 2026
Barrow Multi-Modal Transport Study
- Mott Macdonald160 awards · 54 buyers · latest Mar 2026
Contract for Allington Sluice Drive System Replacement ECC Supervisor & ECoW Design Support
- Baily Garner LLP 98 awards · 51 buyers · latest Jul 2026
Milton Keynes City Council - Project Manager and Quantity Surveyor Services
- perfect circle JV Ltd111 awards · 50 buyers · latest Jul 2026
Professional Technical Services for Museum Collection Centre
- Jacobs Uk Ltd227 awards · 48 buyers · latest Jul 2026
Contract Award Notice -Days Weir Refurbishment - OBC-FBC Design
- Mott Macdonald Ltd149 awards · 48 buyers · latest Jul 2026
TCR Greatie Market - Concept and Preliminary Design
- Ove Arup & Partners Ltd126 awards · 46 buyers · latest Jul 2026
RBC Undertake a Landscape Sensitivity Assessment - ESPO 664/25 Lot 08g - Regeneration and Regional Development
- Jacobs U.K. Limited99 awards · 39 buyers · latest Jun 2026
Metro - Technical Approval Authority
- Mace Limited69 awards · 39 buyers · latest Jul 2026
C0069 NEC PM WAVE 3 - Enhancements Stage 7 Commercial Services (Midlands)
- Atkins Ltd109 awards · 38 buyers · latest Mar 2024
Quality Express Bus Viability Study
Showing 10 of 13,750.
The full list — for members
All 6,451 Other 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.