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Company directory · Llanelli

Trade and construction companies in Llanelli

354 active trade and construction companies registered in Llanelli, Carmarthenshire, by trade.

Trade companies in Llanelli in numbers

From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is J.Allegri and Son Limited, incorporated in 1947.

Companies
354
Active, small or micro accounts
New in the last 12 months
52
15% of the total
Typical net assets
£8,788
Median of 250 latest balance sheets
Typical size
1 employee
Median average headcount
Accounts due in the next 3 months
83
Companies House deadlines

Still trading, by year incorporated

Active trade companies in Llanelli by year of incorporation02040602017: 13 incorporated (still active)20172018: 20 incorporated (still active)20182019: 11 incorporated (still active)20192020: 23 incorporated (still active)20202021: 9 incorporated (still active)20212022: 17 incorporated (still active)20222023: 18 incorporated (still active)20232024: 26 incorporated (still active)20242025: 52 incorporated (still active)20252026: 39 incorporated (still active)392026
Active trade companies in Llanelli by year of incorporation02040602017: 13 incorporated (still active)'172018: 20 incorporated (still active)'182019: 11 incorporated (still active)'192020: 23 incorporated (still active)'202021: 9 incorporated (still active)'212022: 17 incorporated (still active)'222023: 18 incorporated (still active)'232024: 26 incorporated (still active)'242025: 52 incorporated (still active)'252026: 39 incorporated (still active)39'26

Companies still active today, by the year they were incorporated; 2026 is the year so far.

Trades in Llanelli

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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