Machining

Division 25: Manufacture of fabricated metal products, except machinery and equipment

This is the UK's metalworking division. The largest group of companies registers under 25990, the catch-all for fabricated metal products, followed by 25110 for structural steelwork firms making frames, balconies and architectural metalwork, and 25620 for precision machining businesses running CNC mills and lathes. Between them these codes cover most general fabricators, welders with premises and subcontract engineering shops. The division excludes machinery itself, which belongs in 28, a distinction that trips up plenty of engineering companies at registration.

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Who prospects SIC 25620 companies

The skills shortage shapes who prospects this division: engineering recruiters mine it for firms likely to need welders, fabricators and machinists, treating headcount growth and new contract wins as their trigger. Steel stockholders, consumables suppliers, machine tool dealers and calibration services work the same lists. Structural steel firms under 25110 attract construction-adjacent sellers, from estimating software to CE marking consultancies. Newly incorporated fabricators usually come from the tools, having left employment with a customer or two already lined up, and need insurance, kit finance and a basic web presence quickly.

Where SIC 25620 clusters in the UK

ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN · COMPANIES HOUSE REGISTER, JULY 2026

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