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  1. Companies
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  3. Merthyr Tydfil

Company directory · Merthyr Tydfil

Trade and construction companies in Merthyr Tydfil

338 active trade and construction companies registered in Merthyr Tydfil, Mid Glamorgan, by trade.

Trade companies in Merthyr Tydfil in numbers

From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is Thomas & Davies (Merthyr Tydfil) Limited, incorporated in 1962.

Companies
338
Active, small or micro accounts
New in the last 12 months
56
17% of the total
Typical net assets
£23K
Median of 232 latest balance sheets
Typical size
2 employees
Median average headcount
Accounts due in the next 3 months
117
Companies House deadlines

Still trading, by year incorporated

Active trade companies in Merthyr Tydfil by year of incorporation02040602017: 19 incorporated (still active)1920172018: 17 incorporated (still active)1720182019: 20 incorporated (still active)2020192020: 11 incorporated (still active)1120202021: 18 incorporated (still active)1820212022: 17 incorporated (still active)1720222023: 19 incorporated (still active)1920232024: 30 incorporated (still active)3020242025: 49 incorporated (still active)4920252026: 44 incorporated (still active)442026
Active trade companies in Merthyr Tydfil by year of incorporation02040602017: 19 incorporated (still active)19'172018: 17 incorporated (still active)17'182019: 20 incorporated (still active)20'192020: 11 incorporated (still active)11'202021: 18 incorporated (still active)18'212022: 17 incorporated (still active)17'222023: 19 incorporated (still active)19'232024: 30 incorporated (still active)30'242025: 49 incorporated (still active)49'252026: 44 incorporated (still active)44'26

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

Trades in Merthyr Tydfil

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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