Governance Diploma PLC

DPLM

GB0001826634

Industrial Machinery & Equipment

Market Closed - London S.E. Other stock markets 16:35:05 13/02/2026 GMT			5-day change	1st Jan Change
5,410.00 ^GBX	-0.92%		0.00%	+2.17%

01-24	Diploma PLC, Q1 2026 Sales/ Trading Statement Call, Jan 14, 2026
01-19	Tariff threats weigh while Beazley soars on bid	AN

Executive Committee: Diploma PLC

Manager

Positions heldSince

Jonathan Thomson

54 year

Chief Executive Officer

24/02/2019

Holly Gillis

Investor Relations Contact

Donna Lisa Catley

55 year

Human Resources Officer

31/08/2023

Anna Lawrence

General Counsel	-
Corporate Secretary	-

Composition of the Board of Directors: Diploma PLC

Director

CommitteesSince

David Lowden

68 year

Audit Committee	09/09/2018
Compensation Committee	18/01/2022
Nominating Committee	09/09/2018
Nominating Committee Chair	18/01/2022

Katie Bickerstaffe

58 year

Audit Committee	30/09/2024
Nominating Committee	02/07/2025
Compensation Committee Chair	03/05/2021
Compensation Committee	30/09/2024
Governance Committee	02/07/2025

Geraldine Huse

Audit Committee	19/01/2020
Compensation Committee	19/01/2020
Nominating Committee	19/01/2020

Ian El-Mokadem

58 year

Audit Committee	14/01/2025
Nominating Committee	14/01/2025
Compensation Committee	14/01/2025

Janice Stipp

66 year

Audit Committee Chair	15/07/2024
Compensation Committee	31/12/2019
Nominating Committee	16/01/2024

Jennifer Ward

Nominating Committee	31/05/2023
Compensation Committee Chair	15/07/2024

Dean Finch

60 year

Audit Committee	20/05/2021
Nominating Committee	20/05/2021

Jonathan Thomson

54 year

Director/Board Member

24/02/2019

Latest Appointments: Diploma PLC

12-17	Diploma promotes acting CFO Wilson Ng to permanent role	AN
12-17	Diploma Plc Makes Acting CFO Permanent	MT
12-17	Diploma PLC appoints Wilson Ng as group chief financial officer	RE
14/08/25	Diploma CFO Chris Davies steps down immediately, citing conduct	AN
14/08/25	Diploma CFO Resigns After 'Lapse in Judgement' Issue	MT
14/08/25	Diploma's finance chief steps down over conduct issues	RE
14/08/25	Diploma's finance chief steps down over conduct issues	RE

More news

Former Officers and Directors: Diploma PLC

Insider

Positions held

SinceUntil

Sarah Archer

Investor Relations Contact	30/09/2019	31/08/2025
Public Communications Contact	30/09/2019	31/08/2025

Chris Davies

Director/Board Member	17/01/2023	13/08/2025
Director of Finance/CFO	31/10/2022	13/08/2025

Andrew Smith

Director/Board Member	09/02/2015	15/07/2024
Independent Dir/Board Member	09/02/2015	15/07/2024

Barbara Gibbes

Director/Board Member	21/06/2020	29/09/2022
Director of Finance/CFO	21/06/2020	29/09/2022
Corporate Officer/Principal	01/03/2020	21/06/2020

John Nicholas

Director/Board Member	31/05/2013	20/01/2015
Chairman	20/01/2015	18/01/2022
Independent Dir/Board Member	31/05/2013	20/01/2015

Charles Max Packshaw

Director/Board Member	31/05/2013	19/01/2021
Independent Dir/Board Member	31/05/2013	19/01/2021

Nigel Lingwood

Director/Board Member	31/05/2001	21/06/2020
Director of Finance/CFO	31/05/2001	21/06/2020
Public Communications Contact	27/08/2009	-
Corporate Secretary	08/09/2009	20/11/2012

Anthony Gallagher

Corporate Secretary

20/09/2012

04/05/2020

John Morrison

General Counsel	04/05/2020	-
Corporate Secretary	04/05/2020	-

Seamus McAuley

Corporate Officer/Principal

31/08/2018

30/06/2019

Neil Yazdani

Comptroller/Controller/Auditor

31/12/2018

Richard John Ingram

Director/Board Member	-	28/08/2018
Chief Executive Officer	07/05/2018	28/08/2018

Bruce Thompson

Director/Board Member	31/12/1993	07/05/2018
Chief Executive Officer	31/12/1993	07/05/2018
Investor Relations Contact	31/12/1993	07/05/2018
Public Communications Contact	31/12/1993	07/05/2018

Marie-Louise Clayton

Director/Board Member	13/11/2012	15/11/2015
Independent Dir/Board Member	12/11/2012	15/11/2015

Anne Thorburn

Director/Board Member	06/09/2015	-
Independent Dir/Board Member	-	-

John Rennocks

Chairman	30/06/2002	20/01/2015
Independent Dir/Board Member	30/06/2002	20/01/2015

John Matthews

Director/Board Member	31/12/2002	29/09/2013
Independent Dir/Board Member	31/12/2002	29/09/2013

Ian Michael Grice

Director/Board Member	23/01/2007	29/09/2013
Independent Dir/Board Member	23/01/2007	29/09/2013

Ian Stewartby

Director/Board Member

09/01/2007

Iain Henderson

Director/Board Member	31/12/1997	-
Chief Operating Officer	08/09/2009	-

Julia Wehmeyer

Corporate Officer/Principal

James Routh

Chief Executive Officer

Age distribution of managers

Parity Men Women

Male	4
Female	7

Of which Executive Committee

Male	1
Female	3

Of which Directors

Male	4
Female	4

Revisions

Révisions CA 1 an

Révisions CA 4 mois

Révisions CA 1 mois

Révisions BNA 1 an

Révisions BNA 4 mois

ESG MSCI

Environnement

Social

Gouvernance

Polémique

Controverses Ethiques

Controverses sur les droits de l'Homme

Controverses Subventions fiscales

Conforme à la finance Islamique

Diploma PLC specializes in technical services. Net sales break down by activity as follows: - manufacturing of control systems (54.9%): fluid control systems, harness components, wiring and fastening systems used primarily in aerospace, defense, medicine, energy and motor sports sectors; - manufacturing of seals (29.9%): gaskets, filters, cylinders, machined parts for specialized industrial equipment, cylinder components for repair and maintenance of heavy mobile machinery and industrial equipment, etc.; - manufacturing of healthcare equipment and environmental management equipment (15.2%): medical devices for pathology laboratories, operating rooms, clinics, etc., environmental analyzers, containments and emission control systems. Net sales are distributed geographically as follows: the United Kingdom (18.4%), Europe (16.2%), the United States (52.6%) and other (12.8%).

Employees

3,390

Sector

Industrial Machinery & Equipment

Calendar

05-18 - Q2 2026 Earnings Release

More about the company