PricingHow It WorksWebsites
CT600 FilingCompanies House AccountsCompany Deadlines LookupWhat You Need to FileSelf AssessmentCIS ReturnsMaking Tax DigitalFree Tax Calculators
YappazineFree Tax CalculatorsHelp CentreFAQSupportOur Infrastructure
Jobs & leadsStripeMeta Lead AdsWhatsApp AITelegram
Tax filingHMRC (MTD)
Works with bothXeroQuickBooks
AboutPartner APIContactSecurityPrivacy PolicyTerms of Service
  1. Companies
  2. Towns
  3. Porthmadog

Company directory · Porthmadog

Trade and construction companies in Porthmadog

83 active trade and construction companies registered in Porthmadog, Gwynedd, by trade.

Trade companies in Porthmadog in numbers

From the Companies House register and filed balance sheets, as of 1 Oct 2026. The longest-established is E.Jones Williams and Son Limited, incorporated in 1964.

Companies
83
Active, small or micro accounts
New in the last 12 months
7
8% of the total
Typical net assets
£26K
Median of 66 latest balance sheets
Typical size
2 employees
Median average headcount
Accounts due in the next 3 months
32
Companies House deadlines

Still trading, by year incorporated

Active trade companies in Porthmadog by year of incorporation02.557.52017: 7 incorporated (still active)720172018: 5 incorporated (still active)520182019: 6 incorporated (still active)620192020: 4 incorporated (still active)420202021: 2 incorporated (still active)220212022: 3 incorporated (still active)320222023: 1 incorporated (still active)120232024: 5 incorporated (still active)520242025: 2 incorporated (still active)220252026: 6 incorporated (still active)62026
Active trade companies in Porthmadog by year of incorporation02.557.52017: 7 incorporated (still active)7'172018: 5 incorporated (still active)5'182019: 6 incorporated (still active)6'192020: 4 incorporated (still active)4'202021: 2 incorporated (still active)2'212022: 3 incorporated (still active)3'222023: 1 incorporated (still active)1'232024: 5 incorporated (still active)5'242025: 2 incorporated (still active)2'252026: 6 incorporated (still active)6'26

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

Trades in Porthmadog

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.

Run a company in Porthmadog?

A.X.E.L Filing prepares your micro-entity accounts for Companies House and your CT600 for HMRC from one set of questions. £49 flat for both, no accountant, no subscription.

Start your filing
File accounts + CT600File now£49Let's talk