Eight firms — three engineering practices founded 1981–1984 (RGA, CBL, Hartigan) that fold environmental impact and contaminated-land work into broader civil-and-structural remits, plus five single-discipline specialists: arboriculture, ecology (Alderney Wildlife Trust's commercial arm), marine, IT waste, and energy. —
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Vale·Service·Est. 1995
Part of Guernsey Recycling Group
The Channel Islands' only ISO triple-certified ITAD and secure data destruction company, serving Guernsey and Jersey.
—·Professional Service·Est. 1981
✦Oldest in this niche
Civil and structural engineering consultancy established in 1981, serving Jersey and Guernsey.
—·Professional Service
Independent arboricultural consultancy offering tree hazard assessments, tree protection order guidance, and development site surveys.
St Peter Port·Professional Service·Est. 1984
Part of Hartigan (Jersey HQ: Titan House, Liberation Square, St Helier)
✦Largest team: 14
Multidisciplinary consulting engineering practice offering structural, civil, geotechnical, environmental, and historic building conservation services across the Channel Islands.
Alderney·Professional Service·Est. 2002
Part of Alderney Wildlife Trust
The commercial ecological consultancy arm of the Alderney Wildlife Trust, providing environmental surveys and land management services.
St Sampson·Professional Service·Est. 1982
Engineering Council registered civil and structural engineering consultancy, specialising in structural glass, oak frame design, and historic building renovation.
St Peter Port·Education·Est. 2021
Part of Little Big Group
Marine environmental consultancy specialising in sustainable mooring systems, environmental audits, and renewable energy consulting.
—·Professional Service
Energy Consultancy Services provides energy performance certificates (EPC), SAP assessments, and mechanical heating and plumbing (MEP) consultancy.