RFP QuestBeta

Brief your market

Who could bid the next time DEFRA tenders for environment & waste — 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.

Business Services (232)Construction (156)IT Services (107)Research & Development (107)Engineering & Architecture (99)Environment & Waste (25)Education & Training (18)Software & IT Systems (15)

Ring 1

Proven with you

Suppliers already holding a published DEFRA award in this category.

  • Mitie FM Ltd.2 awards · latest Mar 2024

    C24057 DEF Lancaster House Tank 1 Replacement

  • Water Research Centre Limited2 awards · latest Feb 2024

    Persistent Organic Pollutants in Construction and Demolition Waste

  • Northumbrian Water Ltd1 award · latest Mar 2025

    NYE Form C Northumbrian Water - Cullercoats

  • BSI Standards Limited1 award · latest Nov 2024

    Provision of Fast-Tracked Standards, referred to as a Publicly Available Specification ("PAS"), to Assess Safety & Efficacy of Methane Suppressing Feed Products ("MSFPs")

  • ACOEM UK Ltd1 award · latest Oct 2024

    Purchase of PM2.5 instruments suitable primarily for Near Source Locations

  • Ricardo-AEA Limited1 award · latest Oct 2024

    Hydrocarbons UK 2024

  • Stonbury Limited1 award · latest Sept 2024

    S/W AOMR Lot 1 Cableways

  • Ricardo-AEA Ltd1 award · latest Jul 2024

    Data Dissemination Unit Contract - UK-Air website and compliance assessment

  • Scottish Government1 award · latest Mar 2024

    Bycatch Monitoring Programme (BMP) - MoU with Marine Scotland

  • SOCOTEC UK Limited1 award · latest Mar 2024

    B61a Continuous Emissions Monitoring System (CEMS) calibration and verification 2024

Showing 10 of 23.

Ring 2

Proven with buyers like you

Suppliers who have won this category with other Central Gov buyers — ranked by how many different buyers they've won with. This is the shortlist that widens your field.

  • Ricardo-AEA Ltd21 awards · 5 buyers · latest Apr 2026

    ETAFFFASNational02

  • AECOM Ltd7 awards · 5 buyers · latest Nov 2025

    Ouseburn habitat improvements

  • UK Centre for Ecology and Hydrology6 awards · 5 buyers · latest Mar 2022

    Supply of Pollinator Monitoring

  • APEM Ltd12 awards · 4 buyers · latest Jan 2022

    Biodiversity Credits Extended Pilot

  • Bureau Veritas UK Limited10 awards · 4 buyers · latest Jul 2025

    Local Air Quality Management Support 2025 - 2030

  • UK Centre for Ecology and Hydrology (UKCEH)7 awards · 4 buyers

    Cumbria Atmospheric Nitrogen Study

  • WSP UK Limited6 awards · 4 buyers

    Further Update of the UK's POPs Multi-Media Emission Inventory 2026-2029

  • BSI Standards Limited6 awards · 4 buyers · latest Apr 2022

    CONTRACT FOR THE PROVISION OF THE ANNUAL REVISION OF PAS 2030 & PAS 2035

  • RSK ADAS Limited43 awards · 3 buyers · latest Oct 2022

    FaLMA: Lot 7 (South West): Catchment Sensitive Farming Programme Advice October 2022 - March 2023

  • Promar International Ltd20 awards · 3 buyers · latest Sept 2022

    FaLMA Lot 2 (Yorkshire & North East) Catchment Sensitive Farming Programme of Advice

Showing 10 of 470.

Ring 3

Proven in the field

Suppliers winning this category anywhere in UK public procurement (excluding those already listed above).

Showing 10 of 7,329.

The full list — for members

All 470 Central Gov 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.