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Company profile

IQE Silicon Compounds Limited

UK company 03986643, incorporated on 5 May 2000.

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Architects of tomorrow

Company number
03986643
Incorporated
5 May 2000
Companies House status
Active

Company identity

Founded / incorporated
5 May 2000

Company number 03986643

Verify at Companies House
Legal name
IQE SILICON COMPOUNDS LIMITED
Company type
Private Limited Company
Region
Wales
Registered address
PASCAL CLOSE
ST MELLONS
CARDIFF
SOUTH GLAMORGAN
UNITED KINGDOM
CF3 0LW
Insolvency history
No

Corporate ownership

Updated 07 Jul 2026 09:49

1 level 1 ultimate controller
1
Company Active LTD
IQE Silicon Compounds Limited
CRN 03986643
2
Direct and ultimate controller Active PLC
IQE PLC
CRN 03745726

Company events

Reference milestones and recent Companies House filing stream events.

9 events
30 Sep
2027

Accounts due

Accounts Due

Next accounts due date

19 May
2027

Confirmation statement due

Confirmation Due

Next confirmation statement due date

30 Jul
2026

Legacy

Other

AGREEMENT2 | Transaction MzUzNjAzMTk4NWFkaXF6a2N4 | Paper/PDF filed

Published 03 Aug 2026 23:08

30 Jul
2026

Legacy

Accounts PDF pending

PARENT_ACC | Transaction MzUzNjAzMjEyMmFkaXF6a2N4 | Paper/PDF filed

Published 03 Aug 2026 23:02

30 Jul
2026

Accounts With Accounts Type Audit Exemption Subsiduary

Accounts PDF pending

AA | Transaction MzUzNjAzMjkwNmFkaXF6a2N4 | Paper/PDF filed

Published 03 Aug 2026 22:56

30 Jul
2026

Legacy

Other

GUARANTEE2 | Transaction MzUzNjAzMTMyNmFkaXF6a2N4 | Paper/PDF filed

Published 03 Aug 2026 22:53

05 May
2026

Confirmation statement filed

Confirmation

Last confirmation statement made up date

31 Dec
2025

Accounts filed

Accounts

Last accounts made up date

05 May
2000

Incorporated

Inception

Company registered at Companies House

Public funding

3 awards
First funded
2012
Funded years
2012, 2013, 2014, 2018
Age at first award
11 years

Projects

2018 Collaborative R&D

SLAM - Squeezed Light quAntum MEMS Gravimeter

1 Apr 2018 to 31 Mar 2019

Awarded
£42,613
Total cost £85,225

"Work at the University of Glasgow has already taken a silicon fabricated mass on a spring fabricated using the same Micro- Electro Mechancal System (MEMS) technology to the gyroscope in all smart phones that determine orientation and improved the sensitivity by a factor of 5000\. This MEMS gravimeter has the potential to be used to search for new oil & g...

2014 Feasibility Studies Lead participant

Ultra High Efficiency Solar Cells Using SiGeSn (HESCUS)

1 Jan 2014 to 30 Jun 2015

Awarded
£129,490
Total cost £199,215

The project aims to address the need for ever higher efficency solar cells for terrestrial energy generation and also for space power applications. The Project intends to extend already leading edge technology and add a novel semiconductor material (SiGeSn) to better enable matching of the absorption wavelengths of the sub-cells of the device to the solar...

2013 EU-Funded Lead participant

ENIAC - E2SG

1 Jan 2013 to 31 Jan 2013

Awarded
£0
Total cost £0

Awaiting Public Project Summary

2012 EU-Funded Lead participant

ENIAC - E2SG

1 Apr 2012 to 30 Sep 2015

Awarded
£122,501
Total cost £549,330

Awaiting Public Project Summary

Product types

Collaborative R&D EU-Funded Feasibility Studies