CASTLE MICROWAVE SYSTEMS LIMITED

Active Files dormant accounts to 30 June 2025 Company number 01603497

CASTLE MICROWAVE SYSTEMS LIMITED (company number 01603497) is a private limited company incorporated on 11 December 1981. Its status on the Companies House register is Active. Its registered office is in Newbury, RG14 1EA. Its nature of business (SIC 2007) is wholesale of electronic and telecommunications equipment and parts (46520). The company files dormant accounts. The latest, to 30 June 2025, report no trading.

Source: Companies House register, as at 1 April 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.

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Company Report on CASTLE MICROWAVE SYSTEMS LIMITED (PDF)

The register, the accounts and the people behind the company in one PDF, for your own business use.

Summary and Health Score, with the reasons behind the score
Red flags and what changed in the last 12 months
Key figures against the year before, and filing deadlines
Financials ledger: up to 10 years of filed accounts
Who runs and owns it: directors, secretaries and PSCs
Charges, filing history and methodology

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What dormant means

The company's latest accounts were filed as dormant: it reported no significant transactions in the year. Its register status can still be Active.

Dormant company: what it means on Companies House — what happens next, how long it lasts and what to do if the company owes you money.

Company details

Company number: 01603497
Status: Active
Company type: Private Limited Company
Incorporated: 11 December 1981
Country of origin: United Kingdom
Registered office: 5 THE PENTANGLE
PARK STREET
NEWBURY
BERKSHIRE
RG14 1EA

Nature of business (SIC 2007)

46520 — Wholesale of electronic and telecommunications equipment and parts

Accounts and confirmation statement

Accounting reference date: 30 June
Accounts filed: Dormant accounts for the period to 30 June 2025 (no trading reported)
Accounts last made up to: 30 June 2025
Next accounts due: 31 March 2027
Confirmation statement last made up to: 14 February 2026
Next confirmation statement due: 28 February 2027

Control, officers and charges

Persons with significant control: 1 current (1 including ceased)
Corporate controllers: Castle Microwave Ltd
Charges (mortgages): 6 registered, 2 outstanding, 4 satisfied

Questions about CASTLE MICROWAVE SYSTEMS LIMITED

Is CASTLE MICROWAVE SYSTEMS LIMITED active?

Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 1 April 2026.)

When was CASTLE MICROWAVE SYSTEMS LIMITED incorporated?

CASTLE MICROWAVE SYSTEMS LIMITED was incorporated on 11 December 1981, according to the Companies House register. (Companies House register, as at 1 April 2026.)

Where is CASTLE MICROWAVE SYSTEMS LIMITED registered?

Its registered office is in Newbury, RG14 1EA. (Companies House register, as at 1 April 2026.)

Who controls CASTLE MICROWAVE SYSTEMS LIMITED?

The register lists 1 current person with significant control (1 including those who have ceased). Corporate controllers named on the register: Castle Microwave Ltd. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/01603497/persons-with-significant-control. (Companies House register, as at 1 April 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows

When are CASTLE MICROWAVE SYSTEMS LIMITED's next accounts due?

The register shows the next accounts as due by 31 March 2027. Its latest accounts on the register were made up to 30 June 2025. (Companies House register, as at 1 April 2026.)

Does CASTLE MICROWAVE SYSTEMS LIMITED file dormant accounts?

Yes. The register gives the category of its latest accounts, made up to 30 June 2025, as “Dormant”. (Companies House register, as at 1 April 2026.) What a dormant company is and what it must file

Does CASTLE MICROWAVE SYSTEMS LIMITED have any charges registered against it?

Yes. The register shows 6 charges: 2 outstanding and 4 satisfied. The charges themselves are listed at https://find-and-update.company-information.service.gov.uk/company/01603497/charges. (Companies House register, as at 1 April 2026.) Company charges: what a mortgage or debenture means and how to read one

Is CASTLE MICROWAVE SYSTEMS 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 7 October 2026. A name screen is not legal clearance.

More wholesale of electronic and telecommunications equipment and parts companies

Industry overview: 4,334 active companies in SIC 46520

Other active companies registered at RG14 1EA

Companies registered in Newbury

Related guides

How to check a UK company before you trade with it

About CompanyStack

CompanyStack turns Companies House records into answers you can act on: who a company is, who runs and owns it, whether it keeps up with its filings and how its finances are moving. Every figure traces back to a public record, and we say when a record is missing.

Sources for company pages: Companies House (register, accounts, officers, PSCs, charges and filings), The Gazette (company insolvency notices only), the ONS Postcode Directory, official sanctions lists, including those of the UK (with UN designations), the EU, the US, Canada, Australia, New Zealand and France, and copies taken in April 2026 of the ICO register, the Charity Commission, CQC, Ofsted, Food Standards Agency and Environment Agency registers. Contains public sector information licensed under the Open Government Licence v3.0. CompanyStack is not affiliated with or endorsed by Companies House.

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Use this data

Official register entry: CASTLE MICROWAVE SYSTEMS LIMITED on Companies House.

Developers can fetch this profile as JSON with GET https://api.companystack.co.uk/company/01603497 — see the API documentation and pricing.