Mabbett
Mabbett (Arthian Ltd) is a UK-based independent consultancy providing environment, engineering, planning, safety, and sustainability services — including Net Zero and decarbonisation advisory — to enterprise and public-sector clients from offices in Glasgow, the Midlands, and Hampshire.
- Company typePrivate
- Founded1996
- HeadquartersGlasgow, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Mabbett does
Mabbett, operating under the legal entity Arthian Ltd, is a Glasgow-headquartered independent consultancy delivering environment, engineering, planning, safety, and sustainability services across the United Kingdom. The firm employs 51-100 staff across offices in Glasgow (HQ), the Midlands, and Hampshire, and provides a multidisciplinary service stack spanning arboriculture, air quality, acoustics, archaeology, contaminated land remediation, ecology, environmental impact assessment, flood risk, geotechnical engineering, civil and structural engineering, process engineering, planning consultancy, COMAH/DSEAR compliance, HAZOP, occupational hygiene, and increasingly Net Zero, decarbonisation, and ESG advisory. Services are delivered on a project-based, professional services model via direct engagement with enterprise and public-sector clients; pricing is quote-based and not publicly disclosed.
The business is privately held and backed by Inverness-based GEG Capital Ltd, which has executed three major investments into the platform since ownership transitioned. Growth has been primarily inorganic: GEP Environmental Ltd was acquired in June 2022 and Crestwood Environmental in June 2024, each adding offices, staff, and regional coverage to extend technical depth and UK geographical reach. The group has consolidated these acquisitions under the Arthian brand identity, indicating a deliberate platform strategy rather than a single-brand consultancy.
The firm sells senior technical judgment — chartered ecologists, process safety engineers, geotechnical specialists — into regulatory-intensive UK end markets where qualified, accredited providers are scarce. No AI/ML capabilities, software products, or proprietary technology platforms are disclosed; the offering is entirely services-led. Revenue is not publicly disclosed, and no end-customer logos or concentration data are available in the source material.
Mabbett firmographics
Firmographics- Name
- Mabbett
- Legal name
- Arthian Ltd
- Website
- https://mabbett.eu
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Mabbett (Arthian Ltd) is a UK-based independent consultancy providing environment, engineering, planning, safety, and sustainability services — including Net Zero and decarbonisation advisory — to enterprise and public-sector clients from offices in Glasgow, the Midlands, and Hampshire.
- Ownership category
- akta.pro rank
Where Mabbett is headquartered
LocationHeadquarters
- HQ city
- Glasgow
- HQ country
- United Kingdom
- HQ region
- Europe
Offices4 records
Markets served
Mabbett business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Engineering Consultancy Services: Professional consultancy services in environmental and ecological sectors, engineering, and related disciplines delivered to clients across the UK.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels1 record
Mabbett product offering
Product offeringCore offering
Mabbett (trading as Arthian) provides multidisciplinary engineering and environmental consultancy services across environment, engineering, planning, health & safety, sustainability and decarbonisation. Offerings are delivered as bespoke advisory and technical assignments to private developers, operators and public-sector clients across the UK. The firm combines in-house specialist capability with acquisitions (GEP Environmental in 2022 and Crestwood Environmental in 2024) to broaden service depth.
Product overview
Mabbett & Associates is a Glasgow-based engineering consultancy that provides multidisciplinary services including environment, engineering, planning consultancy, safety, sustainability consulting, net zero and decarbonisation, and energy & decarbonisation. The company has pursued strategic growth through acquisitions, including Crestwood Environmental (2024) and GEP Environmental Ltd (2022), expanding its technical resources and UK geographical reach. Services span areas such as arboriculture, air quality, acoustics, archaeology, contaminated land remediation, ecology, environmental impact assessment, flood risk, hydrology, landscape architecture, waste management, civil engineering, structural engineering, geotechnical engineering, process engineering, planning applications, safety consulting, ESG, carbon footprinting, and energy solutions.
Differentiator
Problem solved
Functional benefit
Products and services
- Environmental Consulting Services
Companies that use Mabbett
Customer profileNamed customers2 records
Segments1 record
Ideal customer profiles1 record
Mabbett technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Mabbett partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Crestwood EnvironmentalcoreMidlands-based environmental consultancy acquired by Mabbett to enhance technical resources, extend geographical reach, and foster growth in the environmental and ecological sectors.
Scale indicators3 records
Recent moves4 records
Expansion highlights4 records
Mabbett competitors and assessment
Company assessmentDirect peers
- Ricardo plc: UK-listed engineering, environmental, and sustainability consultancy serving transport, energy, and public-sector clients — overlaps with Mabbett's environmental impact assessment and decarbonisation work.
- RSK Group: UK-headquartered environmental, engineering, and technical services group covering ecology, contaminated land, EIA, and geotechnical — directly comparable in service mix and geography to Mabbett, but materially larger.
- SLR Consulting: Global environmental and sustainability consultancy with a strong UK practice offering EIA, ecology, contaminated land, and sustainability advisory — overlaps with Mabbett's environmental service portfolio and target client base.
- ERM (Environmental Resources Management): The world's largest pure-play environmental, health, safety, risk, and sustainability consultancy, with substantial UK operations — a direct competitor for environmental and ESG advisory mandates.
Broad incumbents
- AtkinsRéalis: UK-rooted global engineering services and project management firm with environmental advisory and planning practices — a broad incumbent operating in adjacent segments of the UK consultancy market.
- AECOM: Global infrastructure consulting firm with major UK environmental, planning, and engineering practices — competes across the same client base but offers significantly broader service depth and scale than Mabbett.
- Stantec: North America-headquartered global engineering, environmental, and consulting firm with a growing UK presence in environmental assessment, water, and community development — competes indirectly with Mabbett's environmental and infrastructure work.
- Arcadis: Global design and consultancy firm with substantial UK environmental impact assessment, climate, and sustainability advisory practices — a broad incumbent competing for mid- and large-size UK mandates.
- WSP: Global professional services and engineering consultancy whose environmental, planning, and sustainability practices compete for the same UK infrastructure and development mandates as Mabbett, at far greater scale.
- Mott MacDonald: Global engineering, management, and development consultancy with strong UK environmental, water, and planning advisory practices — a broad incumbent pursuing similar infrastructure and environmental clients.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Mabbett social profiles
Digital presenceMabbett financial estimates
Financial estimateRevenue estimate
Valuation estimate
Mabbett leadership team
Management profileNumber of profiles
Profiles2 records
Mabbett subsidiaries and ownership
Company hierarchySubsidiaries2 records
Mabbett funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Mabbett M&A and investment
M&A and investmentM&A2 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Mabbett
What does Mabbett do?
Mabbett (trading as Arthian) provides multidisciplinary engineering and environmental consultancy services across environment, engineering, planning, health & safety, sustainability and decarbonisation. Offerings are delivered as bespoke advisory and technical assignments to private developers, operators and public-sector clients across the UK. The firm combines in-house specialist capability with acquisitions (GEP Environmental in 2022 and Crestwood Environmental in 2024) to broaden service depth.
Is Mabbett a public or private company?
Mabbett is a private company. It is classified as private equity controlled and is currently operating.
When was Mabbett founded?
Mabbett was founded in 1996. It employs 51 to 100 people.
Where is Mabbett based?
Mabbett is headquartered in Glasgow, United Kingdom, in the Europe region.
How does Mabbett make money?
One revenue line is on record: engineering Consultancy Services.
Who are Mabbett's main competitors?
Direct peers on record are Ricardo plc, RSK Group, SLR Consulting and ERM (Environmental Resources Management). Broad incumbents are AtkinsRéalis, AECOM, Stantec, Arcadis, WSP and Mott MacDonald.
Does Mabbett have an API?
No public API is recorded for Mabbett.