Keysight Technologies (Spirent Services) Limited

Active00470893 Private limited company

Incorporated: 16 July 1949 (77 years)
Previously known as: Keysight Technologies (Spirent Services) PLC (until 23 June 2026)
Spirent Communications PLC (until 23 June 2026)
Spirent PLC (until 8 May 2006)
Earlier: Bowthorpe PLC, Bowthorpe Holdings PLC
Industry: Other telecommunications activities (61900)
Activities of head offices (70100)
Directors: Simon Anthony Ericson
Jeffrey Kang-Chieh Li
Paul Ian Roy
Owned by: Keysight Technologies, Inc.
Accounts type: Full
Region: South East
Address: Origin One
108 High Street
Crawley
RH10 1BD

Website & contact details

Website: spirent.com

Filing status

Accounts due: 31 July 2027
Last accounts: 31 December 2025
Conf. stmt due: 10 November 2027
Last conf. stmt: 27 October 2026

Charges

Total: 3
Outstanding: 1
Part satisfied: 0
Satisfied: 2

Officers 4 active

Officer details are public data from the Companies House register.

Li, Jeffrey Kang-Chieh

Secretary · Appointed 15 October 2025

Ericson, Simon Anthony

Director · Appointed 15 October 2025

Also at Spirent (Overseas) Limited

British

Born March 1972 (54)

Li, Jeffrey Kang-Chieh

Director · Appointed 15 October 2025

American

Born August 1969 (57)

Roy, Paul Ian

Director · Appointed 15 October 2025

Also at Eggplant Limited, Esi UK Limited, Keysight Technologies UK Limited · more companies

British

Born July 1971 (55)

Officer history (45 former)

15 October 2025

Resigned Bell, Paula as Director

15 October 2025

Appointed Ericson, Simon Anthony as Director

15 October 2025

Appointed Li, Jeffrey Kang-Chieh as Director

15 October 2025

Appointed Roy, Paul Ian as Director

15 October 2025

Resigned Silver, Jonathan Charles as Director

15 October 2025

Resigned Buggie, Margaret Mary as Director

15 October 2025

Resigned Bullard, Gary Bruce as Director

15 October 2025

Resigned Updyke, Eric Allen as Director

15 October 2025

Appointed Li, Jeffrey Kang-Chieh as Secretary

15 October 2025

Resigned Koh, Wendy Meng Weng as Director

15 October 2025

Resigned Thomas, William Gennydd, Sir as Director

15 October 2025

Resigned Masri, Edgar as Director

15 October 2025

Resigned Iveson, Angus Edward as Secretary

29 April 2021

Appointed Buggie, Margaret Mary as Director

1 May 2019

Resigned Hutchinson, Eric George as Director

1 May 2019

Appointed Updyke, Eric Allen as Director

11 January 2018

Appointed Masri, Edgar as Director

11 January 2018

Appointed Koh, Wendy Meng Weng as Director

3 May 2017

Resigned Maxwell, Thomas James as Director

3 May 2017

Resigned Walker, Alexander as Director

8 March 2017

Resigned Swenson, Susan Gail as Director

3 March 2017

Resigned Lantzsch, Thomas Paul as Director

1 December 2016

Appointed Thomas, William Gennydd, Sir as Director

1 December 2016

Appointed Bullard, Gary Bruce as Director

5 September 2016

Appointed Bell, Paula as Director

4 May 2016

Resigned Whiting, Rachel Elizabeth as Director

19 March 2016

Resigned Lewis, Duncan James Daragon as Director

7 August 2015

Resigned Brindle, Ian as Director

26 June 2015

Appointed Silver, Jonathan Charles as Director

11 May 2015

Appointed Lantzsch, Thomas Paul as Director

27 October 2014

Appointed Iveson, Angus Edward as Secretary

27 October 2014

Resigned Whiting, Rachel Elizabeth as Secretary

1 February 2014

Appointed Whiting, Rachel Elizabeth as Director

3 September 2013

Resigned Burns, William as Director

1 February 2012

Appointed Swenson, Susan Gail as Director

5 May 2010

Resigned Eastman Jr, Gerard L as Director

5 May 2010

Resigned Bramson, Edward John as Director

6 May 2009

Resigned Anscombe, Michael John as Secretary

6 May 2009

Appointed Whiting, Rachel Elizabeth as Secretary

6 November 2008

Appointed Burns, William as Director

1 October 2007

Appointed Maxwell, Thomas James as Director

1 July 2007

Resigned Eardley, Paul Rex as Secretary

1 July 2007

Appointed Anscombe, Michael John as Secretary

1 July 2007

Appointed Lewis, Duncan James Daragon as Director

24 May 2007

Resigned Ennerfelt, Per Goran as Director

30 April 2007

Resigned Gustafsson, Anders as Director

22 December 2006

Resigned D`alessio, Frederick Daniel as Director

22 December 2006

Resigned Hellstrom, Kurt Roland as Director

22 December 2006

Resigned Beresford, Marcus De La Poer as Director

22 December 2006

Appointed Walker, Alexander as Director

22 December 2006

Appointed Brindle, Ian as Director

22 December 2006

Resigned Given, Andrew Ferguson as Director

22 December 2006

Resigned Weston, John Pix as Director

22 December 2006

Appointed Eastman Jr, Gerard L as Director

22 December 2006

Appointed Bramson, Edward John as Director

3 May 2006

Resigned Wyness, James Alexander Davidson as Director

4 May 2005

Resigned Moley, Richard Michael as Director

9 December 2004

Appointed Hellstrom, Kurt Roland as Director

3 September 2004

Resigned Chung, My Engu as Director

1 August 2004

Appointed Gustafsson, Anders as Director

30 June 2004

Resigned Brookes, Nicholas Kelvin as Director

26 January 2004

Appointed D`alessio, Frederick Daniel as Director

31 December 2003

Resigned Cheng, Paul Ming Fun as Director

9 October 2003

Appointed Given, Andrew Ferguson as Director

7 November 2002

Appointed Weston, John Pix as Director

30 April 2002

Resigned Sarney, George William, Dr as Director

31 December 2001

Resigned Arnaouti, Michael as Secretary

31 December 2001

Appointed Eardley, Paul Rex as Secretary

9 May 2001

Appointed Chung, My Engu as Director

19 December 2000

Appointed Ennerfelt, Per Goran as Director

1 April 2000

Appointed Moley, Richard Michael as Director

1 January 2000

Appointed Hutchinson, Eric George as Director

31 December 1999

Resigned Mccarthy, Colin Michael as Director

9 September 1999

Resigned Vice, Henry Anthony as Director

21 May 1999

Appointed Beresford, Marcus De La Poer as Director

20 May 1999

Resigned Westhead, John Michael, Dr as Director

21 May 1997

Resigned Biss, Adele as Director

1 August 1996

Appointed Cheng, Paul Ming Fun as Director

1 August 1996

Appointed Sarney, George William, Dr as Director

22 May 1996

Resigned Penny, William Alfred, Professor as Director

1 July 1995

Appointed Brookes, Nicholas Kelvin as Director

14 April 1995

Resigned Bourne, Walter as Director

1 September 1993

Appointed Biss, Adele as Director

17 May 1993

Resigned Parsons, Raymond Arthur as Director

1 July 1992

Appointed Arnaouti, Michael as Secretary

1 July 1992

Resigned Cox, Edward Brian as Secretary

21 May 1992

Appointed Penny, William Alfred, Professor as Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Keysight Technologies, Inc.

Corporate entity · Notified 15 October 2025

Owns 75–100% of shares

Holds 75–100% of voting rights

Incorporated

Reg. no. 001-36334

Group structure 17 companies

Ownership group derived from the Companies House PSC register

Keysight Technologies (Spirent Services) Limited This company

Bowthorpe Limited Owns 75–100% of shares

Cambridge Analytical Group Limited Owns 75–100% of shares

Earlynow Limited Holds 75–100% of voting rights

Inclex No 3 Limited Owns 75–100% of shares

Inclex No 5 Limited Owns 75–100% of shares

PG International Limited Owns 75–100% of shares

Inclex No 7 Limited Owns 75–100% of shares

Shipbrick Limited Owns 50–75% of shares

Inclex No 6 Limited Owns 75–100% of shares

Spirent Capital Limited Owns 75–100% of shares

Spirent Financial Limited Owns 75–100% of shares

Spirent Holdings Limited Owns 75–100% of shares

Spirent Investment Limited Owns 75–100% of shares

Spirent Limited Owns 75–100% of shares

Spirent Sharesave Trust Limited Owns 75–100% of shares

Spirent Systems Limited Owns 50–75% of shares

Filings 1844

Date	Description	Made Up To
2 November 2026	Confirmation statement with updates	27 October 2026
14 October 2026	Current accounting period shortened
2 October 2026	Memorandum and Articles of Association
2 October 2026	Resolutions
25 September 2026	Insolvency filing