Mersen UK Portslade Limited

Active03473721 Private limited company

Incorporated: 1 December 1997 (28 years)
Previously known as: Mersen UK Teesside Limited (until 9 September 2019)
Ralph Coidan Limited (until 7 June 2010)
Equalcareer Limited (until 18 January 1999)
Industry: Other manufacturing n.e.c. (32990)
Directors: Thierry De Taeye
Owned by: Mersen UK Holdings, Ltd
Accounts type: Total exemption full
Region: North East
Address: Boltby Way Durham Lane Industrial Park
Eaglescliffe
Stockton-On-Tees
TS16 0RH

Filing status

Accounts due: 30 September 2027
Last accounts: 31 December 2025
Conf. stmt due: 15 December 2026
Last conf. stmt: 1 December 2025

Officers 1 active

Officer details are public data from the Companies House register.

De Taeye, Thierry

Director · Appointed 23 July 2026

Also at LE Carbone(holdings)limited

French

Born December 1964 (61)

Officer history (18 former)

23 July 2026

Appointed De Taeye, Thierry as Director

23 July 2026

Resigned Themelin, Luc as Director

26 April 2025

Resigned Freer, Andrew as Director

31 January 2025

Resigned Herrero, Ivan as Secretary

22 December 2015

Resigned Mackay, Gordon John as Secretary

22 December 2015

Appointed Herrero, Ivan as Secretary

16 December 2015

Appointed Freer, Andrew as Director

30 September 2015

Resigned Denyer, Michael as Director

19 August 2014

Appointed Denyer, Michael as Director

30 April 2014

Resigned Mcleod, Hugh as Director

5 November 2013

Appointed Mackay, Gordon John as Secretary

5 November 2013

Resigned Denyer, Michael as Secretary

5 November 2013

Appointed Mcleod, Hugh as Director

5 November 2013

Resigned Denyer, Michael as Director

7 May 2010

Resigned Suquet, Jean Claude as Director

18 May 2009

Resigned Parkinson, Cecil Edward, The Rt Hon The Lord as Director

1 August 2008

Appointed Denyer, Michael as Secretary

31 July 2008

Resigned Price, Stephen Derek Alistair as Director

31 July 2008

Resigned Price, Stephen Derek Alistair as Secretary

6 December 2006

Appointed Themelin, Luc as Director

17 November 2006

Resigned Galopin, Gerard Claude as Director

1 July 2004

Appointed Denyer, Michael as Director

31 March 2004

Resigned Coidan, John David as Director

23 December 2003

Appointed Galopin, Gerard Claude as Director

23 December 2003

Appointed Suquet, Jean Claude as Director

3 September 2003

Resigned Galopin, Gerard Claude as Director

17 May 2001

Appointed Parkinson, Cecil Edward, The Rt Hon The Lord as Director

7 February 2001

Resigned Grylls, William Joh Michael, Sir as Director

21 December 1998

Appointed Grylls, William Joh Michael, Sir as Director

21 December 1998

Appointed Coidan, John David as Director

4 February 1998

Appointed Price, Stephen Derek Alistair as Secretary

4 February 1998

Appointed Price, Stephen Derek Alistair as Director

4 February 1998

Appointed Galopin, Gerard Claude as Director

4 February 1998

Resigned Swift Incorporations Limited as Corporate Nominee Secretary

4 February 1998

Resigned Instant Companies Limited as Corporate Nominee Director

1 December 1997

Appointed Swift Incorporations Limited as Corporate Nominee Secretary

1 December 1997

Appointed Instant Companies Limited as Corporate Nominee Director

Ownership 1 active

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

Mersen UK Holdings, Ltd

Corporate entity · Notified 6 April 2016

Owns 75–100% of shares

Holds 75–100% of voting rights

Right to appoint and remove directors

Limited Company

Reg. no. 03535300

Filings

Recent filings only. See the full history on Companies House

Date	Description	Made Up To
29 July 2026	Appointment of a director
29 July 2026	Termination of appointment of a director
29 April 2026	Total exemption full accounts	31 December 2025
10 March 2026	Confirmation statement with no updates	1 December 2025
20 February 2026	Change of details for a person with significant control