# SIMPLEX SYSTEMS LTD (17391825)

> SIMPLEX SYSTEMS LTD is an active private limited company (company number 17391825) incorporated on 10 August 2026, registered in London. Its registered activity is business and domestic software development (SIC 62012). No accounts have been filed yet; the first accounts are due by 10 May 2028.

- Status: Active
- Incorporated: 2026-08-10
- Registered office: London, WC2H 9JQ
- SIC 62012: Business and domestic software development
- Next accounts due: 2028-05-10
- Confirmation statement due: 2027-08-24
- Accounts type: NO ACCOUNTS FILED

There are 15,170 companies in business and domestic software development in London with filed accounts; the median reports net assets of £702 and is 5 years old.

## Persons with significant control

- Ms Joanna Ransome-Wallis — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors, since 2026-08-10

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Source: Companies House register, Open Government Licence v3.0. Official record: https://find-and-update.company-information.service.gov.uk/company/17391825
HTML: https://firmoscan.com/company/17391825-simplex-systems-ltd