Manufacturing

Ronez Limited supplies aggregates, ready-mixed concrete, asphalt, and precast products from quarries in St Sampson and Vale, as a subsidiary of SigmaRoc PLC.

Civil and marine construction company offering steel fabrication, welding, and crane hire across the Channel Islands and beyond.

Window Service Centre Ltd. manufactures and installs PVCu and aluminium windows, doors and conservatories across the Bailiwick, trading since 1994.

Family-owned building company established in 1924, specialising in heritage refurbishment and new build construction, with all traditional trades carried in-house.

Vale-based building contractor established in 1952, specialising in carpentry, joinery, and suspended ceilings.

Contract electronics manufacturer providing PCB assembly, SMT, testing, and design for manufacturing consultancy across medical, marine, and industrial sectors since 1990.

Metalwork and fabrication specialist established in 1996, offering bespoke fabrication, coded welding, and laser cleaning with a team of over 20 in St Sampson.

Stainless Steel Fabrications manufactures and installs bespoke stainless steel, aluminium, and glass products from its Vale workshop.

Vale engineering and motorworks workshop offering vehicle repair, welding, and metal fabrication.

The parent company of Guernsey Energy, Island Energy and Isle of Man Energy, supplying natural gas and liquefied petroleum gas to around 40,000 customers.

Guernsey building contractor specialising in high-end residential construction, property development, and timber frame builds, established 1988.

St Pierre du Bois shop and manufacturer established in 1964, specialising in hand-finished authentic Guernsey sweaters and local handcrafted gifts.

Manufacturer of OTR, AGRI, and truck tyre repair systems, exporting worldwide from Guernsey, and offering a certified tyre repair training programme.

The glass fabrication and installation arm of SSF Services in Vale, supplying bespoke glass products for private and commercial clients.

CNC precision machining company established in 1993, serving the medical, dental, electronic test, and education industries.

Limited company specialising in marine, stainless steel, and aluminium fabrication and welding services for commercial and residential clients in St Saviour.

Manufacturer of builders' carpentry and joinery, including wooden casement and vertical sliding sash windows, door sets, and staircases made to individual requirements.

Manufacturer of RFID scanners, designing, developing, and prototyping them to customer specifications, including Halo microchip scanners and the Race Check variant for 90,000 Australian racehorses.

Vale-based welding and fabrication sole trader specialising in stainless steel, aluminium, marine metalwork, and kinetic art.

Metalwork business specialising in restoration, repair, and fabrication for residential and commercial clients in St Sampson.

Marine engineering and metalwork specialist established in 1985, offering boat repair, engine services, and custom stainless steel and aluminium fabrication in Vale.

Limited company specialising in earthmoving and plant hire, offering JCB distribution and hydraulic hose manufacture using Gates products.

Jewellery manufacturer on Sark, making hand-crafted sterling silver jewellery and kiln-fired fused glass, with Cheryl Tonks as the maker.

Manufacturer of traditional Guernsey vinehouses, Victorian glasshouses, and domestic garden glasshouses from its own stock of aluminium sections.

Engraving business in the Castel, supplying trophies, glass engraving, and name plates.

St Peter Port-based supplier of Perspex and polycarbonate, specialising in general plastics fabrication and repair work, and a contributor to the 2020 COVID-19 community face visor project.