SIMPLEX SYSTEMS LTD

Company number 17391825 · Active · London WC2H 9JQ

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.

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.

Key dates

Incorporated
10 August 2026
First accounts due
10 May 2028 — in 574 days
Confirmation statement due
24 August 2027 — in 314 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

Activity

SIC 62012
Business and domestic software development
Accounts type
No Accounts Filed

Financials

No accounts filed yet. The first accounts are due by 10 May 2028; this page updates when they are filed.

Ownership and control

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

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

Similar companies in London

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Reminders for SIMPLEX SYSTEMS LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.