Company Active LTD

Company profile

CSR Limited

UK company 04187346, incorporated on 26 March 2001.

Qualcomm aptX: Wireless High Resolution Audio Via Bluetooth

Qualcomm aptX audio technology powers high resolution wireless audio behind leading Bluetooth headphones, smartphones, speakers, and transmitters.

Company number
04187346
Incorporated
26 Mar 2001
Companies House status
Active

Company identity

Founded / incorporated
26 March 2001

Company number 04187346

Verify at Companies House
Legal name
CSR LIMITED
Company type
Private Limited Company
Region
East of England
Registered address
CHURCHILL HOUSE CAMBRIDGE BUSINESS PARK
COWLEY ROAD
CAMBRIDGE
UNITED KINGDOM
CB4 0WZ
Insolvency history
No

Corporate ownership

Updated 07 Jul 2026 09:49

1 level 1 ultimate controller Controls 5
1
Company Active LTD
CSR Limited
CRN 04187346
2
Direct and ultimate controller
N/A
CRN N/A

Company events

Reference milestones and recent Companies House filing stream events.

6 events
30 Jun
2027

Accounts due

Accounts Due

Next accounts due date

09 Apr
2027

Confirmation statement due

Confirmation Due

Next confirmation statement due date

07 Jul
2026

Accounts With Accounts Type Full

Accounts PDF pending

AA | Transaction MzUyOTUxOTM5NGFkaXF6a2N4 | Paper/PDF filed

Published 08 Jul 2026 00:43

26 Mar
2026

Confirmation statement filed

Confirmation

Last confirmation statement made up date

28 Sep
2025

Accounts filed

Accounts

Last accounts made up date

26 Mar
2001

Incorporated

Inception

Company registered at Companies House

Public funding

1 award
First funded
2009
Funded years
2009
Age at first award
8 years

Projects

2009 Collaborative R&D

TOTALCARE: a digital health-care framework integrating secure personal monitoring with P2P medical condition community support focused on ageing & obese populations

1 Sep 2009 to 29 Feb 2012

Awarded
£34,161
Total cost £73,197

By 2034 23% of UK population will be 65+ and the fastest increase in those aged 85 and over. As the elderly population expands there is a pressing need to support elderly people to remain well and independent in their own homes. Older middle-aged people (50 – 65) are finding themselves looking towards their own retirement, whilst their 85 – 90 year older ...

Product types

Collaborative R&D