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Company profile

Mainframe Limited

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Mainframe Limited is a UK company with status active founded in 1998 based in London.

CRN
03597627
Founded
1998
Age
27

Overview

Legal name
MAINFRAME LIMITED
Region
London
Registered address
STUDIO 10
THE PIANO FACTORY
117 FARRINGDON ROAD
LONDON
UNITED KINGDOM
EC1R 3BX
Insolvency history
No

Corporate ownership

Updated 07 Jul 2026 09:49

1 level 1 ultimate controller
1
Company Active LTD
Mainframe Limited
CRN 03597627
2
Direct and ultimate controller Active LTD
Atj Limited
CRN 06604890

Company events

Reference milestones and recent Companies House filing stream events.

5 events
31 Mar
2027

Accounts due

Accounts Due

Next accounts due date

28 Jul
2026

Confirmation statement due

Confirmation Due

Next confirmation statement due date

14 Jul
2025

Confirmation statement filed

Confirmation

Last confirmation statement made up date

30 Jun
2025

Accounts filed

Accounts

Last accounts made up date

14 Jul
1998

Incorporated

Inception

Company registered at Companies House