Company directory · St Helens
Trade and construction companies in St Helens
227 active trade and construction companies registered in St Helens, Merseyside, by trade.
Trade companies in St Helens in numbers
From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is ST Helens and District Conservative and Unionist Building Company Limited, incorporated in 1907.
Still trading, by year incorporated
Companies still active today, by the year they were incorporated; 2026 is the year so far.
Trades in St Helens
- Electricians28
- Mechanics and garages27
- Plumbers and heating engineers20
- Property developers18
- Builders16
- Finishing trades16
- Installers13
- Motor traders13
- Civil engineering12
- Joiners and carpenters10
- Machinery repair and installation9
- Specialist contractors9
- Roofers8
- Cleaning companies7
- Floor and wall tilers6
- Plasterers6
Every company on these pages is an active private limited company that files small or micro-entity accounts. Each one has to deliver accounts to Companies House within 9 months of its year end, pay corporation tax 9 months and 1 day after it, and file a CT600 with HMRC within 12 months.
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