Diploma plc (DPLM) Board of Directors | TickerDavid Soutar Lowden
Board Chair
5 yrsAge: 69British
Jonathan David Thomson
Chief Executive Officer
7 yrs 8 mosAge: 54British
Chief Financial Officer
1 yrs 2 mosAge: 45Malaysian
Richard Hall
Managing Director, ISG UK
–
Kelly Cole
Managing Director, Shoal Group
–
Dean Finch
Independent Non-Executive Director
–
Independent Non-Executive Director
3 yrs 4 mosAge: 53American
Independent Non-Executive Director
2 yrs 9 mosAge: 67American
Ian Ramsey Safwat El-Mokadem Independent Non-Executive Director
1 yrs 9 mosAge: 58British
Cheri Marie Phyfer
Independent Non-Executive Director
7 mosAge: 55American
Amanda Jane Gradden
Independent Non-Executive Director
4 mosAge: 58British
Senior Independent Director
2 yrsAge: 59British
David Sealfon
President, Hercules OEM
–
ML
Melissa Lee
HR Director at Hercules Sealing Products
–
EL
Elena Lo Castro
Senior Vice President at Diploma PLC Life Sciences North America
–
Finance Director, Australia Seals
–
Corporate Development, NA Seals
–
Thomas Peterson
CEO, M Seals
–
Anna Lawrence
Group General Counsel & Company Secretary
1 yrs 5 mos
| Name | Role | Appointed | Tenure | Nationality |
|---|
| Board Chair | 19 Oct 2021 | 5 yrs | British |
| Chief Executive Officer | 25 Feb 2019 | 7 yrs 8 mos | British |
|
Director Remuneration (FYE 2024)
| Director | Role | Base Salary | Benefits | Bonus | LTIP | Pension | Total |
|---|
| Johnny Thomson | Executive Director | £820,000 | £30,000 | £1,025,000 | £2,551,000 | £33,000 |
Tenure: 6 yrs 6 mosResigned: 15 Jul 2026
Christopher Mark Davies
Executive Director
Tenure: 2 yrs 9 mosResigned: 13 Aug 2025
Tenure: 5 yrsResigned: 30 May 2025
Anne Thorburn
Non-Executive Director
Tenure: 9 yrsResigned: 30 Sept 2024
David Soutar Lowden
Board Chair
5 yrsAge: 69British
Jonathan David Thomson
Chief Executive Officer
7 yrs 8 mosAge: 54British
Chief Financial Officer
1 yrs 2 mosAge: 45Malaysian
Richard Hall
Managing Director, ISG UK
–
Kelly Cole
Managing Director, Shoal Group
–
Dean Finch
Independent Non-Executive Director
–
Independent Non-Executive Director
3 yrs 4 mosAge: 53American
Independent Non-Executive Director
2 yrs 9 mosAge: 67American
Ian Ramsey Safwat El-Mokadem Independent Non-Executive Director
1 yrs 9 mosAge: 58British
Cheri Marie Phyfer
Independent Non-Executive Director
7 mosAge: 55American
Amanda Jane Gradden
Independent Non-Executive Director
4 mosAge: 58British
Senior Independent Director
2 yrsAge: 59British
David Sealfon
President, Hercules OEM
–
ML
Melissa Lee
HR Director at Hercules Sealing Products
–
EL
Elena Lo Castro
Senior Vice President at Diploma PLC Life Sciences North America
–
Finance Director, Australia Seals
–
Corporate Development, NA Seals
–
Thomas Peterson
CEO, M Seals
–
Anna Lawrence
Group General Counsel & Company Secretary
1 yrs 5 mos
| Name | Role | Appointed | Tenure | Nationality |
|---|
| Board Chair | 19 Oct 2021 | 5 yrs | British |
| Chief Executive Officer | 25 Feb 2019 | 7 yrs 8 mos | British |
|
Director Remuneration (FYE 2024)
| Director | Role | Base Salary | Benefits | Bonus | LTIP | Pension | Total |
|---|
| Johnny Thomson | Executive Director | £820,000 | £30,000 | £1,025,000 | £2,551,000 | £33,000 |
Tenure: 6 yrs 6 mosResigned: 15 Jul 2026
Christopher Mark Davies
Executive Director
Tenure: 2 yrs 9 mosResigned: 13 Aug 2025
Tenure: 5 yrsResigned: 30 May 2025
Anne Thorburn
Non-Executive Director
Tenure: 9 yrsResigned: 30 Sept 2024
| Chief Financial Officer | 14 Aug 2025 | 1 yrs 2 mos | Malaysian |
| Managing Director, ISG UK | – | – | – |
| Managing Director, Shoal Group | – | – | – |
| Independent Non-Executive Director | – | – | – |
| Independent Non-Executive Director | 1 Jun 2023 | 3 yrs 4 mos | American |
| Independent Non-Executive Director | 17 Jan 2024 | 2 yrs 9 mos | American |
Ian Ramsey Safwat El-Mokadem | Independent Non-Executive Director | 15 Jan 2025 | 1 yrs 9 mos | British |
| Independent Non-Executive Director | 2 Mar 2026 | 7 mos | American |
| Independent Non-Executive Director | 1 Jun 2026 | 4 mos | British |
| Senior Independent Director | 1 Oct 2024 | 2 yrs | British |
| President, Hercules OEM | – | – | – |
| HR Director at Hercules Sealing Products | – | – | – |
| Senior Vice President at Diploma PLC Life Sciences North America | – | – | – |
| Finance Director, Australia Seals | – | – | – |
| Corporate Development, NA Seals | – | – | – |
| Group General Counsel & Company Secretary | 30 May 2025 | 1 yrs 5 mos | – |
| Chris Davies | Executive Director | £510,000 | £20,000 | £638,000 | £344,000 | £20,000 | £1,532,000 |
Prior year comparison (2 directors)
| Director | Role | Base Salary | Benefits | Bonus | LTIP | Pension | Total |
|---|
| Johnny Thomson | Executive Director | £754,000 | £26,000 | £943,000 | £2,366,000 | £41,000 | £4,130,000 |
| Chris Davies | Executive Director | £413,000 | £18,000 | £516,000 | – | £17,000 | £1,359,000 |
Andrew Patrick Smith
Tenure: 9 yrs 5 mosResigned: 16 Jul 2024
Barbara Gibbes
Executive Director
Tenure: 2 yrs 3 mosResigned: 30 Sept 2022
John Edward Nicholas
Chair
Tenure: 8 yrs 7 mosResigned: 19 Jan 2022
Charles Max Packshaw
Non-Executive Director
Tenure: 7 yrs 7 mosResigned: 20 Jan 2021
Nigel Peter Lingwood
Executive Director
Tenure: 18 yrs 11 mosResigned: 22 Jun 2020
Anthony James Gallagher
Secretary
Tenure: 7 yrs 8 mosResigned: 5 May 2020
Richard John Ingram
Executive Director
Tenure: 4 mosResigned: 28 Aug 2018
Bruce Mckenzie Thompson
Executive Director
Tenure: 18 yrs 4 mosResigned: 8 May 2018
John Iain Henderson
Executive Director
Tenure: 15 yrs 11 mosResigned: 20 Jan 2016
Marie-Louise Louise Clayton
Non-Executive Director
Tenure: 3 yrsResigned: 16 Nov 2015
John Leonard Rennocks
Non-Executive Director
Tenure: 12 yrs 6 mosResigned: 21 Jan 2015
Ian Michael Grice
Non-Executive Director
Tenure: 6 yrs 8 mosResigned: 30 Sept 2013
John Waylett Matthews
Non-Executive Director
Tenure: 10 yrs 2 mosResigned: 30 Sept 2013
Lord Bernard Harold Ian Halley Stewartby
Director
Tenure: 6 yrs 11 mosResigned: 10 Jan 2007
Aubrey John Christopher Thomas
Director
Tenure: 3 yrs 11 mosResigned: 7 Jan 2004
Tenure: 3 yrs 2 mosResigned: 1 Apr 2003
Andrew Michael Reay Parkinson
Director
Tenure: 1 yrs 6 mosResigned: 3 Jul 2001
| Name | Role | Appointed | Resigned | Tenure | Nationality |
|---|
| Geraldine Claire Huse | Non-Executive Director | 20 Jan 2020 | 15 Jul 2026 | 6 yrs 6 mos | British |
| Christopher Mark Davies | Executive Director | 1 Nov 2022 | 13 Aug 2025 | 2 yrs 9 mos | British |
| John Morrison | Secretary | 5 May 2020 | 30 May 2025 | 5 yrs | – |
| Anne Thorburn | Non-Executive Director | 7 Sept 2015 | 30 Sept 2024 | 9 yrs | British |
| Andrew Patrick Smith | Non-Executive Director | 10 Feb 2015 |
| Chief Financial Officer | 14 Aug 2025 | 1 yrs 2 mos | Malaysian |
| Managing Director, ISG UK | – | – | – |
| Managing Director, Shoal Group | – | – | – |
| Independent Non-Executive Director | – | – | – |
| Independent Non-Executive Director | 1 Jun 2023 | 3 yrs 4 mos | American |
| Independent Non-Executive Director | 17 Jan 2024 | 2 yrs 9 mos | American |
Ian Ramsey Safwat El-Mokadem | Independent Non-Executive Director | 15 Jan 2025 | 1 yrs 9 mos | British |
| Independent Non-Executive Director | 2 Mar 2026 | 7 mos | American |
| Independent Non-Executive Director | 1 Jun 2026 | 4 mos | British |
| Senior Independent Director | 1 Oct 2024 | 2 yrs | British |
| President, Hercules OEM | – | – | – |
| HR Director at Hercules Sealing Products | – | – | – |
| Senior Vice President at Diploma PLC Life Sciences North America | – | – | – |
| Finance Director, Australia Seals | – | – | – |
| Corporate Development, NA Seals | – | – | – |
| Group General Counsel & Company Secretary | 30 May 2025 | 1 yrs 5 mos | – |
| Chris Davies | Executive Director | £510,000 | £20,000 | £638,000 | £344,000 | £20,000 | £1,532,000 |
Prior year comparison (2 directors)
| Director | Role | Base Salary | Benefits | Bonus | LTIP | Pension | Total |
|---|
| Johnny Thomson | Executive Director | £754,000 | £26,000 | £943,000 | £2,366,000 | £41,000 | £4,130,000 |
| Chris Davies | Executive Director | £413,000 | £18,000 | £516,000 | – | £17,000 | £1,359,000 |
Andrew Patrick Smith
Tenure: 9 yrs 5 mosResigned: 16 Jul 2024
Barbara Gibbes
Executive Director
Tenure: 2 yrs 3 mosResigned: 30 Sept 2022
John Edward Nicholas
Chair
Tenure: 8 yrs 7 mosResigned: 19 Jan 2022
Charles Max Packshaw
Non-Executive Director
Tenure: 7 yrs 7 mosResigned: 20 Jan 2021
Nigel Peter Lingwood
Executive Director
Tenure: 18 yrs 11 mosResigned: 22 Jun 2020
Anthony James Gallagher
Secretary
Tenure: 7 yrs 8 mosResigned: 5 May 2020
Richard John Ingram
Executive Director
Tenure: 4 mosResigned: 28 Aug 2018
Bruce Mckenzie Thompson
Executive Director
Tenure: 18 yrs 4 mosResigned: 8 May 2018
John Iain Henderson
Executive Director
Tenure: 15 yrs 11 mosResigned: 20 Jan 2016
Marie-Louise Louise Clayton
Non-Executive Director
Tenure: 3 yrsResigned: 16 Nov 2015
John Leonard Rennocks
Non-Executive Director
Tenure: 12 yrs 6 mosResigned: 21 Jan 2015
Ian Michael Grice
Non-Executive Director
Tenure: 6 yrs 8 mosResigned: 30 Sept 2013
John Waylett Matthews
Non-Executive Director
Tenure: 10 yrs 2 mosResigned: 30 Sept 2013
Lord Bernard Harold Ian Halley Stewartby
Director
Tenure: 6 yrs 11 mosResigned: 10 Jan 2007
Aubrey John Christopher Thomas
Director
Tenure: 3 yrs 11 mosResigned: 7 Jan 2004
Tenure: 3 yrs 2 mosResigned: 1 Apr 2003
Andrew Michael Reay Parkinson
Director
Tenure: 1 yrs 6 mosResigned: 3 Jul 2001
| Name | Role | Appointed | Resigned | Tenure | Nationality |
|---|
| Geraldine Claire Huse | Non-Executive Director | 20 Jan 2020 | 15 Jul 2026 | 6 yrs 6 mos | British |
| Christopher Mark Davies | Executive Director | 1 Nov 2022 | 13 Aug 2025 | 2 yrs 9 mos | British |
| John Morrison | Secretary | 5 May 2020 | 30 May 2025 | 5 yrs | – |
| Anne Thorburn | Non-Executive Director | 7 Sept 2015 | 30 Sept 2024 | 9 yrs | British |
| Andrew Patrick Smith | Non-Executive Director | 10 Feb 2015 |
| Barbara Gibbes | Executive Director | 22 Jun 2020 | 30 Sept 2022 | 2 yrs 3 mos | British |
| John Edward Nicholas | Chair | 1 Jun 2013 | 19 Jan 2022 | 8 yrs 7 mos | British |
| Charles Max Packshaw | Non-Executive Director | 1 Jun 2013 | 20 Jan 2021 | 7 yrs 7 mos | British |
| Nigel Peter Lingwood | Executive Director | 3 Jul 2001 | 22 Jun 2020 | 18 yrs 11 mos | British |
| Anthony James Gallagher | Secretary | 21 Sept 2012 | 5 May 2020 | 7 yrs 8 mos | – |
| Richard John Ingram | Executive Director | 23 Apr 2018 | 28 Aug 2018 | 4 mos | British |
| Bruce Mckenzie Thompson | Executive Director | 24 Jan 2000 | 8 May 2018 | 18 yrs 4 mos | British |
| John Iain Henderson | Executive Director | 21 Feb 2000 | 20 Jan 2016 | 15 yrs 11 mos | British |
| Marie-Louise Louise Clayton | Non-Executive Director | 13 Nov 2012 | 16 Nov 2015 | 3 yrs | British |
| John Leonard Rennocks | Non-Executive Director | 2 Jul 2002 | 21 Jan 2015 | 12 yrs 6 mos | British |
| Ian Michael Grice | Non-Executive Director | 24 Jan 2007 | 30 Sept 2013 | 6 yrs 8 mos | British |
| John Waylett Matthews | Non-Executive Director | 24 Jul 2003 | 30 Sept 2013 | 10 yrs 2 mos | British |
| Lord Bernard Harold Ian Halley Stewartby | Director | 21 Feb 2000 | 10 Jan 2007 | 6 yrs 11 mos | British |
| Aubrey John Christopher Thomas | Director | 21 Feb 2000 | 7 Jan 2004 | 3 yrs 11 mos | British |
| William Reid | Director | 21 Feb 2000 | 1 Apr 2003 | 3 yrs 2 mos | British |
| Andrew Michael Reay Parkinson | Director | 24 Jan 2000 | 3 Jul 2001 | 1 yrs 6 mos | British |
| Barbara Gibbes | Executive Director | 22 Jun 2020 | 30 Sept 2022 | 2 yrs 3 mos | British |
| John Edward Nicholas | Chair | 1 Jun 2013 | 19 Jan 2022 | 8 yrs 7 mos | British |
| Charles Max Packshaw | Non-Executive Director | 1 Jun 2013 | 20 Jan 2021 | 7 yrs 7 mos | British |
| Nigel Peter Lingwood | Executive Director | 3 Jul 2001 | 22 Jun 2020 | 18 yrs 11 mos | British |
| Anthony James Gallagher | Secretary | 21 Sept 2012 | 5 May 2020 | 7 yrs 8 mos | – |
| Richard John Ingram | Executive Director | 23 Apr 2018 | 28 Aug 2018 | 4 mos | British |
| Bruce Mckenzie Thompson | Executive Director | 24 Jan 2000 | 8 May 2018 | 18 yrs 4 mos | British |
| John Iain Henderson | Executive Director | 21 Feb 2000 | 20 Jan 2016 | 15 yrs 11 mos | British |
| Marie-Louise Louise Clayton | Non-Executive Director | 13 Nov 2012 | 16 Nov 2015 | 3 yrs | British |
| John Leonard Rennocks | Non-Executive Director | 2 Jul 2002 | 21 Jan 2015 | 12 yrs 6 mos | British |
| Ian Michael Grice | Non-Executive Director | 24 Jan 2007 | 30 Sept 2013 | 6 yrs 8 mos | British |
| John Waylett Matthews | Non-Executive Director | 24 Jul 2003 | 30 Sept 2013 | 10 yrs 2 mos | British |
| Lord Bernard Harold Ian Halley Stewartby | Director | 21 Feb 2000 | 10 Jan 2007 | 6 yrs 11 mos | British |
| Aubrey John Christopher Thomas | Director | 21 Feb 2000 | 7 Jan 2004 | 3 yrs 11 mos | British |
| William Reid | Director | 21 Feb 2000 | 1 Apr 2003 | 3 yrs 2 mos | British |
| Andrew Michael Reay Parkinson | Director | 24 Jan 2000 | 3 Jul 2001 | 1 yrs 6 mos | British |
