GAIR CONSULTING LIMITED

What GAIR CONSULTING LIMITED does

Gair Consulting Limited is a privately-held, UK-based independent environmental consultancy founded in 2003 by Dr Amanda Gair, operating from Piddletrenthide near Dorchester, Dorset. The firm specialises in air quality and odour management consultancy, delivering four interlocking service lines: Modelling and Assessment (dispersion modelling using AERMOD/ADMS, human health risk assessment via the US EPA HHRAP protocol using IRAP, landfill gas risk assessment using GasSim, odour nuisance assessments, traffic impact assessments via DMRB/ADMS Roads, fugitive dust audits, industrial emissions screening under EPR H1/D1, and habitat risk assessments); Planning and Environmental Permitting; Monitoring Services (installation through reporting); and Expert Witness Services at public inquiries and in litigation.

The business is a project-based professional services firm. Revenue is generated through quote-based, tailored engagements with industry, public utilities, and local government, with no disclosed pricing model. Distribution is entirely direct: clients engage by telephone or email, and Dr Gair (Managing Director) is the primary commercial contact. The disclosed core team comprises two credentialed professionals (Dr Amanda Gair, Chartered Environmentalist and IAQSM/IES member with 25+ years' experience; Dr Sarah Davison, Associate, with 10 years' experience). The firm also draws on a consortium relationship with Envest Ltd and other specialist consultants to deliver multi-disciplinary Environmental Statements and Environmental Permit applications. The named customer base spans construction materials (Hanson Brick, Castle Cement, Ennstone Johnson), water utilities (Southern Water), property development (Peel Investments), and several UK county councils (West Sussex, East Sussex, North Yorkshire). The company has no disclosed external investment, no parent entity, no social media presence, and a website that has not been visibly updated since 2011.

Name

GAIR CONSULTING LIMITED

Legal name

Gair Consulting Limited

Website

https://gairconsulting.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

1–10 employees

Short description

Gair Consulting Limited is an independent UK environmental consultancy providing specialist air quality, odour, and emissions risk assessment, permitting, monitoring, and expert witness services to industry, utilities, and local government.

Ownership category

akta.pro rank

Product category

Environmental Consulting

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Sustainability & ESG Consulting (BPAHACAK)

Keywords

• Air quality consulting
• Environmental management services
• Dispersion modelling
• Odour impact assessment
• Environmental permitting support

Headquarters

HQ city

Dorchester

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Consultancy Services: Professional consulting services providing specialist air quality and environmental management advice to industry, public utilities, and local government. Revenue generated through project-based consultancy engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Gair Consulting is an independent specialist air quality and environmental management consultancy providing professional advisory services to industry, public utilities, and local government. Its core offering spans four service areas: Modelling and Assessment (dispersion modelling, dust, human health and habitat risk assessments), Planning and Environmental Permitting, tailor-made Monitoring Services, and Expert Witness Services for planning inquiries and litigation.

Product overview

Gair Consulting is an independent air quality and environmental management consultancy offering a unified suite of advisory services rather than a software product. The consultancy's core capabilities are delivered through five interconnected service areas: Modelling and Assessment (encompassing dispersion modelling, fugitive dust assessments, human health risk assessments, industrial emissions screening, traffic impact assessments, landfill gas risk assessments, odour impact assessments, and habitat risk assessments); Planning and Environmental Permitting; Monitoring Services; and Expert Witness Services. These services are provided to industry, public utilities, and local government sectors including landfill, energy from waste, ceramics, construction, chemicals, wastewater, and crematoria.

Differentiator

Problem solved

Functional benefit

Products and services

• Modelling and Assessment Air quality modelling and assessment services including dispersion modelling using AERMOD or ADMS, fugitive dust assessments, human health risk assessments via IRAP/HHRAP food chain modelling, industrial emissions screening with EPR H1/D1, traffic impact assessments via DMRB and ADMS Roads, landfill gas risk assessments using GasSim, odour impact assessments, and habitat risk assessments for industrial, residential, and commercial developments.
• Planning and Environmental Permitting Provision of air quality assessments and expert evidence in support of planning and environmental permitting applications for industrial, residential, and commercial developments, including preparation of Environmental Statements, scoping and screening reports, and Environmental Permit applications in collaboration with Envest Ltd and a consortium of specialist consultants.
• Monitoring Services Tailor-made monitoring programmes including full installation and decommissioning, quality control, data management, interpretation, and reporting for air quality, odour (olfactometry, hydrogen sulphide mapping), and dust ambient monitoring programmes.
• Expert Witness Services Expert evidence on air quality and environmental issues presented at public planning inquiries and in litigation and prosecution cases on behalf of both developers and objectors, including engagements such as the Rivenhall Integrated Waste Management Facility, the Sustainable Waste Management Centre for Peel Investments (North) Limited, and the Peacehaven Sludge Recycling Centre on behalf of East Sussex County Council.

Quantifiable outcome

• Methodology takes into account the most up to date guidance and legislation to produce high quality, scientifically robust reports

Named customers8 records

Segments8 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Envest LtdcoreStrategic or Co-development PartnerGair Consulting works in collaboration with Envest Ltd and a consortium of specialist consultants for the preparation of Environmental Statements and associated documents, including scoping and screening reports, and Environmental Permit applications. Nicola Beaumont at Envest Ltd serves as a key contact for joint projects.

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• WSP: Global professional services firm with a substantial UK environment and air quality practice serving infrastructure, development and industrial clients. Competes with Gair in dispersion modelling, EIA and permitting for major projects.
• SLR Consulting: Global environmental and advisory consultancy with a strong UK air quality and EIA practice. Overlaps directly with Gair's environmental impact assessment and permitting services but operates with a much broader service portfolio and international footprint.
• RSK Group: Large UK environmental and engineering services group offering air quality, environmental permitting and impact assessment services alongside many other disciplines. Competes with Gair for industrial and public-sector air quality work but at much greater scale.
• Bureau Veritas: Global testing, inspection and certification group with environmental and air quality advisory services in the UK. Adjacent competitor for industrial emissions, permitting compliance and monitoring work.
• RPS Group: UK-headquartered consultancy providing environmental services including air quality assessment, environmental permitting and planning support. A more established competitor to Gair's planning, permitting and air quality services.
• AECOM: Global infrastructure consultancy with a UK environment team providing air quality, EIA, permitting and monitoring services. Comparable in service offering but vastly larger in scale and geographic reach.
• AtkinsRéalis: Global design, engineering and project management consultancy with a UK environment practice providing air quality, EIA and permitting services for major infrastructure and development projects.
• ERM (Environmental Resources Management): Global sustainability and environmental consulting firm with deep UK air quality and permitting expertise. Overlaps with Gair's work for industrial clients on environmental permitting and impact assessment.

Direct peers

• Air Quality Consultants Ltd: UK-based independent consultancy specialising in air quality assessments, odour studies and environmental permitting. Highly comparable to Gair Consulting in niche focus, delivery model and client base across industry and local government.
• Wardell Armstrong: UK-based environmental and engineering consultancy offering air quality, EIA, permitting and expert witness services. Closely comparable in scope and client mix, though operating at significantly larger scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/gair-consulting-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GAIR CONSULTING LIMITED