# Air Quality Consultants — UK public sector contract awards > A prime supplier profile built from sourced government contract award notices. ## Key facts - Awards: 26 - Known award value: £2,317,765 - First award: 18 January 2017 - Latest award: 12 January 2026 ## Top public sector buyers - Defra Network eTendering Portal — 6 awards - [Department for Environment, Food & Rural Affairs](/buyers/department-for-environment-food-rural-affairs/contract-awards) — 5 awards - [Environment Agency](/buyers/environment-agency/contract-awards) — 4 awards - [Defra](/buyers/defra/contract-awards) — 2 awards - [Natural England](/buyers/natural-england/contract-awards) — 2 awards ## Contract awards ### [RDE989 - Literature and Data Review for EV Bus Evaluation - An NO₂ Reduction P](/contracts/ocds-b5fd17-7adbe7e1-dc5c-423b-bb72-50588ab1d1ed) Department for Environment, Food & Rural Affairs · £44,800 · 12 January 2026 · awarded ### [RDE920 - Nature based solutions for air pollution beyond trees](/contracts/ocds-b5fd17-0ed5afb0-5541-44bd-941e-dab4d6ba51ce) Natural England · £49,860 · 10 November 2025 · awarded ### [RDE866 - Modelling the impact of aviation lead emissions on the surrounding popu](/contracts/ocds-b5fd17-f25721ba-2385-46b1-be6d-816bb9d187f6) Department for Environment, Food & Rural Affairs · £89,733 · 23 September 2025 · awarded ### [RDE914 - Improving quantification of the uncertainty in emissions of air polluta](/contracts/ocds-b5fd17-6f027413-4ff0-43c2-80e2-40cfe3c998c1) Department for Environment, Food & Rural Affairs · £69,500 · 2 October 2025 · awarded ### [Towards Regulatory Readiness: Characterising and assessing Airborne PFAS](/contracts/ocds-b5fd17-a611ca21-8c1e-45ef-9576-c3acefa4a4fc) Environment Agency · £81,150 · 12 September 2025 · awarded ### [RDE814 - Using inverse dispersion modelling to quantify methane emissions from l](/contracts/ocds-b5fd17-f82ee143-195e-4112-a7de-da1dfb5e6fe5) Environment Agency · £59,800 · 12 September 2025 · awarded ### [RDE815 Carbon Capture Atmospheric N-Amines Formation Estimation Tools](/contracts/ocds-b5fd17-6675a707-af9d-4798-805d-51441dccacd5) Environment Agency · £60,000 · 4 August 2025 · awarded ### [RDE791 - Project to catalogue the range of air quality communication toolkits a](/contracts/ocds-b5fd17-ca6b6c35-2c8e-4164-83d7-cf8fb65d0783) Department for Environment, Food & Rural Affairs · £39,300 · 6 May 2025 · awarded ### [RDE695 Road transport emission factors evidence review](/contracts/ocds-b5fd17-29d45579-9c37-418a-a062-003a63a35fd2) Department for Environment, Food & Rural Affairs · £68,250 · 11 November 2024 · awarded ### [RDE602 Thermal Transport of Air Pollution from Regulated Industries \(TAPRI\)](/contracts/ocds-b5fd17-e73df3cf-908f-4657-a8a2-86afe963b7bc) Environment Agency · £98,600 · 13 August 2024 · awarded ### [Development of supporting material for the inclusion of the PM2\.5 targets in the planning system for The Research, Development and Evidence Framework 1](/contracts/ocds-b5fd17-aea0c472-6083-4270-b296-ecfdf1725893) Department for Environment\. Food & Rural Affairs \(Defra\) · £160,600 · 20 February 2024 · awarded ### [RDE 379 -Updating and Refining the Nitrogen Decision Framework - Critical Loads](/contracts/ocds-b5fd17-949d09bc-5033-4646-a6ff-fe35471d98b7) Natural England · £17,400 · 5 October 2023 · awarded ### [RDE273 Scoping study on PM2\.5 targets implementation](/contracts/ocds-b5fd17-15c8318b-8c28-41e1-80dd-abd9656cba5d) Not Known · £49,950 · 4 May 2023 · awarded ### [An Impact Evaluation of the European Maritime and Fisheries Fund](/contracts/ocds-b5fd17-b25e96a3-2e9a-4a02-b0c1-d50da24cb12a) DEFRA · £62,943 · 4 April 2023 · awarded ### [MAQS-Health air quality scenario modelling system design feasibility study](/contracts/ocds-b5fd17-d4e70cc5-a09e-4207-90f2-3587a2e78b5a) Defra · £34,850 · 15 March 2023 · awarded ### [Defra awarded contract for project\_37808 - SR21 Air Research Project - Drivers and changes \(DC\) SC220032](/contracts/ocds-b5fd17-8798870d-48d8-4991-b5fa-9dec01458642) Defra Network eTendering Portal · £49,850 · 21 December 2022 · awarded ### [Defra awarded contract for SR21 Air Research Project - Monitoring, Modelling & Integration \(MMI\) SC220033](/contracts/ocds-b5fd17-3a8064e4-3640-43e7-be32-c946feb833f4) Defra Network eTendering Portal · £47,700 · 20 December 2022 · awarded ### [Defra awarded contract for Quick scoping review to understanding the groups at increased risk from adverse effects of air pollution due to their exposure and activities undertaken\.](/contracts/ocds-b5fd17-77d00379-ffcf-46fb-9c71-7c2fb62eec79) Defra Network eTendering Portal · £49,780 · 20 December 2022 · awarded ### [Defra awarded contract for Approach to screening industrial emissions from small stacks](/contracts/ocds-b5fd17-2cdefca5-e3e6-4aa8-a999-ade9ddd4ceb7) Defra Network eTendering Portal · £16,507 · 21 November 2022 · awarded ### [Defra - An Evaluation Framework and Process Evaluation for the 25 Year Environment Plan](/contracts/ocds-b5fd17-6e0f8ba8-83ba-4979-ab0d-2b82572df106) Defra Network eTendering Portal · £226,065 · 4 October 2021 · awarded ### [Research into the Socioeconomic Costs of Chemical Pollution to the UK](/contracts/ocds-b5fd17-65e88290-f21b-404d-bd67-ef853141a170) Defra Network eTendering Portal · £99,333 · 14 October 2021 · awarded ### [Air Quality and Noise Assessments - Fox Lane Area QN](/contracts/ocds-b5fd17-380d8b98-bfd4-4f7d-9ca6-992dbcca1d92) London Borough of Enfield · £15,795 · 5 October 2021 · awarded ### [London and Quadrant Housing Trust - Air Quality Consultant Framework 2020 - 2024 - AWARD](/contracts/ocds-b5fd17-17481532-340c-4336-b0a6-6e4e39cb1310) L&Q Construction · £756,000 · 20 August 2020 · awarded ### [Consultants reports on non-road mobile machinery \(NRMM\) and solid fuel emissions to air\. Evidence Base Technical Reports](/contracts/ocds-b5fd17-d35ce1f0-5cf2-462c-b033-5fee34373cc7) Bristol City Council · £40,000 · 20 January 2020 · awarded ### [Investigate options for reducing emissions](/contracts/ocds-b5fd17-a5191d43-9c64-4168-bd2d-4e0a43a0a14d) City of London Corporation · £30,000 · 1 February 2018 · awarded Page 1 of 2; 26 total records.