What Arthian does

Arthian is a UK and Ireland-based multidisciplinary consultancy that delivers integrated environment, engineering, planning, safety, sustainability, and net zero services from a network of 17 offices. The firm operates across seven core service lines — Environment Services, Engineering Services, Planning Consultancy, Safety Services, Sustainability Consulting, Net Zero and Decarbonisation, and Energy & Decarbonisation — supported by an Integrated Management System registered to ISO 9001, ISO 14001, and ISO 45001 with alignment to ISO 22301 and ISO 27001. Its client base spans COMAH-regulated high-hazard industries, public sector bodies pursuing net zero targets, distilling and beverage producers, energy and renewables developers, construction firms, and utilities. The firm employs more than 190 professional technical staff and is described as one of the largest multidisciplinary consultancies delivering sustainability services across the UK and Ireland.

Underlying capability is human-delivery rather than software-delivered: no proprietary technology platform, API, or AI/ML system is disclosed, and the technology stack centres on trained professionals operating in regulated domains such as process safety, occupational hygiene, contaminated land, environmental impact assessment, and planning. Differentiated specialist sub-offerings include COMAH compliance, DSEAR/ATEX, HAZOP, DSEAR mechanical aspects, HAVS and occupational noise monitoring, hydrocarbon vapour monitoring, distillery design, and Bord Bia Origin Green verification. Named engagements include structural engineering for a satellite control room within a live Dragon LNG regasification facility, lead design for a 132kV United Infrastructure underground cable, and decarbonisation support for Amber Valley Borough Council that secured a £700k PSDS grant and cut emissions by approximately 43%.

Commercially, Arthian is a private limited company (Arthian Ltd, registered in Scotland No. SC 163378) operating a sales-led, project-based professional services model with revenue generated through consulting engagements, assessments, audits, training, and ongoing advisory work. Pricing is not publicly disclosed and is scoped per project. The firm is majority-owned by Global Energy Capital, a holding/investment company, and executed two same-day acquisitions on 2024-11-30 (IKM Consulting and Mabbett, undisclosed consideration), consistent with a programmatic buy-and-build approach. Leadership comprises long-tenured insiders — Chairman Roy MacGregor and CEO Derek J. McNab — and the firmographics record lists 2024 as the founding year of the Arthian-branded entity overlaid on a 1996 heritage business.

Name

Arthian

Legal name

Arthian Ltd

Website

https://arthian.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

101–250 employees

Short description

Arthian is a UK and Ireland multidisciplinary consultancy delivering integrated environment, engineering, planning, safety, sustainability, and net zero services to enterprise and public sector clients, with 190+ technical staff across 17 offices and majority ownership by Global Energy Capital.

Ownership category

akta.pro rank

Product category

Environmental & Engineering Consulting

NAICS

Engineering Services (54133), Management, Scientific, and Technical Consulting Services (5416), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Sustainable/Green Building & LEED Consulting (BPAHAKAG)

akta.pro secondary industries

Housing Development, Construction & Rehabilitation Programs (BPAIANAB), Infrastructure, Engineering & Public Works Technical Assistance (WASH/Transport/Energy) (BPADAEAF), Program & Project Implementation (TA Delivery) (BPADAEAA)

Keywords

• Environmental consulting services
• Engineering consultancy
• Safety and compliance
• Sustainability consulting
• Net zero advisory

Headquarters

HQ city

Glasgow

HQ country

United Kingdom

HQ region

Europe

Offices17 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Consulting Services: Professional consulting services across environment, engineering, planning, safety, sustainability, and net zero/decarbonisation. Revenue is generated through project-based consulting engagements, assessments, audits, training, and ongoing advisory services tailored to client needs.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Arthian is a multidisciplinary consultancy delivering integrated environment, engineering, planning, safety, sustainability, and net zero/decarbonisation services. The firm supports organisations across the entire project lifecycle — from strategy and assessment through to design, compliance, and delivery — for clients in high-hazard industries, public sector, energy, infrastructure, construction, and distilling sectors across the UK and Ireland.

Product overview

Arthian is a multidisciplinary consultancy delivering integrated engineering, sustainability, planning, and development services. The firm operates across seven interconnected service lines: Environment Services, Engineering Services, Planning Consultancy, Safety Services, Sustainability Consulting, Net Zero and Decarbonisation, and Energy & Decarbonisation. Within Safety, key sub-offerings include Occupational Hygiene Consultancy (HAVS, noise, dust, hydrocarbon monitoring), Process Safety Training, and Health & Safety Consultancy. The portfolio is unified by an Integrated Management System aligned to ISO 9001, ISO 14001, ISO 45001, ISO 22301, and ISO 27001 standards. The firm also provides Bord Bia Origin Green Programme verification services for the food and beverage sector. Projects span structural engineering design, civil infrastructure, environmental impact assessment, decarbonisation planning, and process safety.

Differentiator

Problem solved

Functional benefit

Products and services

• Environment Services Specialist environmental consultancy covering ecology, air quality, noise, heritage, hydrology, climate resilience, contaminated land, flood risk, waste, and soils management to enable sustainable development and regulatory compliance.
• Engineering Services Integrated engineering consultancy encompassing civil, structural, geotechnical, process, water/wastewater, temporary works, asset integrity, flood risk engineering, surveying, and infrastructure design.
• Planning Consultancy Expert-led planning and transport strategy services guiding organisations through planning complexities, supporting sustainable development from site appraisal to delivery.
• Safety Services Risk management and safety consultancy including process safety, COMAH compliance, DSEAR/ATEX, HAZOP, machinery safety, occupational hygiene, health & safety, and CDM support.
• Sustainability Consulting Embedding sustainability into strategy, operations, and culture through EHS legal compliance, ISO management systems, ESG reporting, programme delivery, and energy compliance services.
• Net Zero and Decarbonisation Tailored decarbonisation strategies, carbon footprinting, emissions reduction planning, climate risk management, and science-aligned solutions supporting organisations' net-zero transitions.
• Energy & Decarbonisation Energy engineering, ESOS compliance, and energy generation feasibility design services to help organisations improve energy efficiency and reduce carbon output.
• Occupational Hygiene Consultancy Specialist occupational hygiene monitoring and risk assessment including airborne contaminant monitoring, occupational noise, HAVS, indoor air quality, dust and particulate, and chemical vapour monitoring.
• Health & Safety Consultancy Practical health and safety support including competent person services, risk management, audits, policy development, site inspections, training, and ISO 45001 implementation.

Quantifiable outcome

• Helped Amber Valley Borough Council reduce emissions by approximately 43% and secure £700K PSDS grant
• +1 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• WSP: Global professional services firm with a large UK/Ireland environment, planning, engineering, and sustainability practice. Comparable because it competes directly for many of the same multidisciplinary infrastructure and net zero mandates that Arthian serves.
• AECOM: Global infrastructure consultancy with major UK environment, engineering, and sustainability teams. Direct competitor for planning, EIA, civil/structural engineering, and decarbonisation engagements across UK/Ireland public and private sectors.
• Arcadis: International design and consultancy firm with strong UK/Ireland environment, planning, and sustainability practices. Closely comparable in offering integrated environmental, engineering, and net zero advisory services to similar clients.
• Jacobs: Global professional services firm with significant UK environment, process safety, and infrastructure engineering capability. Comparable for high-hazard industrial, COMAH-style, and major public sector infrastructure programmes.
• Mott MacDonald: UK-headquartered global engineering, environment, and development consultancy. Competes with Arthian across planning, EIA, civil engineering, and sustainability advisory for UK/Ireland infrastructure clients.
• Stantec: International engineering, environment, and community development consultancy with UK operations covering environment, planning, and sustainability. Comparable as a multidisciplinary consultancy serving similar infrastructure and development clients.
• Ramboll: Global engineering, environment, and sustainability consultancy with significant UK practice. Competes with Arthian on environment, planning, decarbonisation, and engineering design for UK/Ireland infrastructure and industrial clients.
• AtkinsRéalis: Global engineering services and project management firm (formerly Atkins/SNC-Lavalin) with major UK environment, planning, engineering, and net zero practice. Competes for similar multidisciplinary infrastructure and decarbonisation mandates.

Direct peers

• SLR Consulting: Global environmental and advisory consultancy with strong UK presence focused on environment, EIA, planning, and sustainability services. Closely comparable peer given overlapping service lines and similar client mix in regulated industries.
• Ricardo: UK-listed engineering and environmental consultancy with strong process safety, energy, and sustainability capability. Comparable especially in COMAH, process safety, energy/decarbonisation, and environmental advisory work.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/arthian

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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

M&A2 records

Investments

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

Frequently asked questions about Arthian