# SHEEHAN DEFENSIBLE SYSTEMS LIMITED (17213000)

> SHEEHAN DEFENSIBLE SYSTEMS LIMITED is an active private limited company (company number 17213000) incorporated on 12 May 2026, registered in Blackburn. Its registered activity is other information technology service activities (SIC 62090). No accounts have been filed yet; the first accounts are due by 12 February 2028.

- Status: Active
- Incorporated: 2026-05-12
- Registered office: Blackburn, BB1 2LW
- SIC 62090: Other information technology service activities
- Next accounts due: 2028-02-12
- Confirmation statement due: 2027-05-26
- Accounts type: NO ACCOUNTS FILED

There are 669 companies in other information technology service activities in Lancashire with filed accounts; the median reports net assets of £5,270 and is 12 years old.

## Persons with significant control

- Mrs Katharine Sarah Mcnamara — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2026-05-12
- Mr Anthony Allan Denis Mcnamara — owns 25–50% of shares; holds 25–50% of voting rights; can appoint or remove directors, since 2026-05-12

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Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/17213000
HTML: https://firmoscan.com/company/17213000-sheehan-defensible-systems-limited