SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED
Active Company number 11389544
SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED (company number 11389544) is a private limited company incorporated on 30 May 2018. Its status on the Companies House register is Active. Its registered office is in Pontypridd, CF37 5UT. Its nature of business (SIC 2007) is passenger rail transport, interurban (49100). Its latest accounts we hold, for the period ending 31 December 2025, report turnover of £132.8m and net assets of £11.1m.
Source: Companies House register, as at 1 October 2026. How to cite this page
Information only, not advice. Register details and accounts figures are the company's own filings, shown as filed: CompanyStack does not audit or verify them and accepts no responsibility for decisions made on them. Check important facts at Companies House.
Company Report on SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED (PDF)
Page 1 answers whether we would trade with it, and on what terms, by rules stated on the page. The register, the accounts and the people behind the company in one PDF, for your own business use.
- The verdict: would we trade with it, on what terms: a starting credit limit from the latest balance sheet, the risk grade with its reasons, and the checks to make before you sign
- Summary and Health Score: with the reasons behind the score
- Red flags: and what changed in the last 12 months
- Key figures: the accounts to 31 Dec 2025 against the year before
- Filing deadlines: accounts due 30 Sep 2027; confirmation statement due 15 May 2027
- Financials ledger: 2 years of filed accounts held (2024–2025)
- Who runs and owns it: 1 PSC
- Shareholders: the current register from the filings: each holder, class, shares and percentage
- Charges: none on the register
- Filing history and methodology: with sources and a disclaimer
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Company details
- Company number
- 11389544
- Status
- Active
- Company type
- Private Limited Company
- Incorporated
- 30 May 2018
- Country of origin
- United Kingdom
- Registered office
- TRANSPORT FOR WALES CVL INFRASTRUCTURE DEPOT TY TRAFNIDIAETH, TREFOREST INDUSTRIAL ESTATE
GWENT ROAD
PONTYPRIDD
CF37 5UT
UNITED KINGDOM
Nature of business (SIC 2007)
Accounts and confirmation statement
- Accounting reference date
- 31 December
- Accounts category
- FULL
- Accounts last made up to
- 31 December 2025
- Next accounts due
- 30 September 2027
- Confirmation statement last made up to
- 1 May 2026
- Next confirmation statement due
- 15 May 2027
Financial summary
| Period ending | 31 December 2025 | 31 December 2024 |
|---|---|---|
| Turnover | £132.8m | £160.8m |
| Gross profit | £7.1m | £6.5m |
| Operating profit | £3.6m | £2.7m |
| Profit before tax | £3.6m | £2.6m |
| Profit after tax | £2.7m | £1.9m |
| Total assets | £60.2m | £44.2m |
| Cash at bank | £12k | £4.6m |
| Current liabilities | −£48.5m | −£35.1m |
| Net current assets | £11.0m | £8.3m |
| Net assets | £11.1m | £8.4m |
| Employees | 119 | 113 |
Figures read from filings at Companies House (ixbrl) and checked; see how we read them. Small-company accounts often omit turnover and profit. Spotted an error? Tell us.
Control, officers and charges
- Persons with significant control
- 1 current (2 including ceased)
- Corporate controllers
- Amey Rail Limited
Previous names
- AMEY KEOLIS INFRASTRUCTURE / SEILWAITH AMEY KEOLIS LIMITED (changed 10 February 2021)
Questions about SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED
Is SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED active?
Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 1 October 2026.)
When was SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED incorporated?
SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED was incorporated on 30 May 2018, according to the Companies House register. (Companies House register, as at 1 October 2026.)
Where is SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED registered?
Its registered office is in Pontypridd, CF37 5UT. (Companies House register, as at 1 October 2026.)
Who controls SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED?
The register lists 1 current person with significant control (2 including those who have ceased). Corporate controllers named on the register: Amey Rail Limited. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/11389544/persons-with-significant-control. (Companies House register, as at 1 October 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows
When are SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED's next accounts due?
The register shows the next accounts as due by 30 September 2027. Its latest accounts on the register were made up to 31 December 2025. (Companies House register, as at 1 October 2026.)
Does SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED file dormant accounts?
Not in its latest accounts. The register gives their category as “Full accounts”, made up to 31 December 2025. (Companies House register, as at 1 October 2026.) What a dormant company is and what it must file
Is SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED on a sanctions list?
No match for this company's name on the sanctions lists CompanyStack screens (UK, EU, OFAC SDN, OFAC non-SDN, Canada, Australia, New Zealand, Japan, France, US CSL) as at 10 October 2026. A name screen is not legal clearance.
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- NORTH NORFOLK RAILWAY PUBLIC LIMITED COMPANY
- CHURNET VALLEY RAILWAY (1992) PLC
- DART VALLEY RAILWAY LTD
- GREAT CENTRAL RAILWAY PLC
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Official register entry: SEILWAITH AMEY CYMRU / AMEY INFRASTRUCTURE WALES LIMITED on Companies House.
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