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Diploma PLC's Overview

Total employees164
HeadquartersLondon
Founded1931

Diploma PLC is a FTSE 100 international group of businesses that supply high-quality, specialised technical products and services to a diverse range of end markets. The company operates across three main sectors: Life Sciences (supplying consumables, instrumentation, and related services to healthcare and environmental industries), Seals (supplying seals, gaskets, filters, cylinders, and other components for specialised industrial equipment), and Controls (supplying specialised wiring, connectors, fasteners, and control devices). Diploma's strategy is focused on organic growth, value-enhancing acquisitions, and a decentralized business model that empowers its individual companies.

Where is Diploma PLC's Headquarters?

HQ Function

Serves as the central hub for strategic decision-making, corporate governance, financial oversight, and investor relations for the global group.

Notable Features:

Modern office facilities situated in a redeveloped commercial area near Paddington Station, offering excellent connectivity and a professional environment. Specific architectural details of the interior are not publicly emphasized.

Work Culture:

Professional, results-oriented, and entrepreneurial, reflecting its decentralized business model. Emphasis on long-term value creation, operational excellence, and empowered leadership within its businesses.

HQ Significance:

Strategic location in London provides access to global financial markets, a diverse talent pool, and excellent international connectivity, supporting its role as an international group headquarters for a FTSE 100 company.

Values Reflected in HQ: The choice of a modern, well-connected, and efficient headquarters likely reflects Diploma's values of professionalism, growth, financial stewardship, and effective group management.

Location:

Diploma PLC operates a global network of businesses with a significant presence in North America, Europe (including the UK), and the Asia-Pacific region. Through its decentralized model, the Group supports functions globally including specialized product sourcing and supply, value-added distribution, technical sales, engineering support, customer service, and after-sales support. This international footprint enables Diploma to serve a wide array of customers in critical industries such as healthcare, life sciences, aerospace, defense, power generation, transportation, and industrial machinery.

Street Address:

10 Eastbourne Terrace

City:

London

State/Province:

Greater London

Country:

United Kingdom

Diploma PLC's Global Presence

Clearwater, Florida, USA

Address: Hercules Sealing Products, 13700 49th Street North, Clearwater, FL 33762, USA

Serves as a major distribution, technical support, and customer service center for the North American industrial market, leveraging strong local expertise, extensive inventory, and rapid fulfillment capabilities.

Port Melbourne, VIC, Australia

Address: CR Kennedy & Company Pty Ltd, 300 Lorimer Street, Port Melbourne, VIC 3207, Australia

Caters to the specialized needs of the Australian and New Zealand healthcare, research, industrial, and photographic markets, providing local sales, accredited service facilities, and technical support.

Ratingen, Germany

Address: KVT-Fastening GmbH, Max-Eyth-Straße 10, 40882 Ratingen, Germany (One of several KVT locations)

Serves diverse industrial customers across Germany and neighboring European countries, providing engineering expertise, customized solutions, and a broad portfolio of fastening products for demanding applications.

Buying Intent Signals for Diploma PLC

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of Diploma PLC

As of April 2025, Diploma PLC' leadership includes:

Johnny Thomson - Chief Executive Officer
Barbara Gibbes - Chief Financial Officer
Chris Davies - Chief People Officer
David S. H. Lowden - Non-Executive Chair

Investors of Diploma PLC

Diploma PLC has been backed by several prominent investors over the years, including:

BlackRock, Inc.
Fidelity Management & Research Company LLC (FMR LLC)
The Vanguard Group, Inc.
Columbia Threadneedle Management Ltd.
FIL Investment Advisers (UK) Ltd.
Ninety One UK Limited
Royal London Asset Management Ltd.

Executive New Hires/Exits in the Last 12 Months

Hire1
Exits0

Diploma PLC's core executive team (CEO, CFO, CPO) has remained stable over the past 12 months, with these key leaders appointed in early 2023. Recent board-level news includes the appointment of a new Non-Executive Director in May 2024, and announced future transitions for other Non-Executive Directors effective January 2025.

Departures

Martin Flower, Martin Flower announced his intention to retire from the Board at the conclusion of the Annual General Meeting in January 2025. (This is a future departure)
Katrina Cliffe, Katrina Cliffe will step down from the Board at the conclusion of the Annual General Meeting in January 2025. (This is a future departure)

New Appointments:

Anne Thorburn, Anne Thorburn was appointed as a Non-Executive Director and member of the Audit Committee.
Dean Finch, Dean Finch will be appointed Chair of the Remuneration Committee following the AGM in January 2025.

Technology (Tech Stack) used by Diploma PLC

Discover the tools Diploma PLC uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Diploma PLC Email Formats and Examples

Diploma PLC's primary email format for corporate communications typically follows the pattern [first_initial][lastname]@diplomaplc.com. Individual subsidiary companies operating under the Diploma group may utilize their own distinct email domains and formats specific to their brand identity (e.g., @herculesseals.com, @kvt-fastening.com).

[first_initial][lastname]@diplomaplc.com

Format

j.doe@diplomaplc.com

Example

85%

Success rate

News and media

London Stock Exchange News Service (RNS)April 24, 2024

Diploma PLC Announces Acquisition of PAR Group

Diploma PLC announced the strategic acquisition of PAR Group Ltd, a UK-based value-added distributor of specialist sealing, engineering plastics and insulation products. This acquisition further strengthens Diploma's Seals sector presence and capabilities in the UK market....more

London Stock Exchange News Service (RNS)April 16, 2024

Diploma PLC Reports Strong H1 Trading and Upgrades FY24 Guidance

Diploma PLC released a positive trading update for the six months ended 31 March 2024, highlighting strong organic growth and significant contributions from acquisitions. As a result, the company upgraded its full-year 2024 guidance, expecting adjusted operating margin to be ahead of prior expectations....more

London Stock Exchange News Service (RNS)February 1, 2024

Diploma PLC Acquires Peerless Aerospace Fasteners

Diploma PLC announced the acquisition of Peerless Aerospace Fasteners, LLC, a leading US value-added distributor of specialty fasteners for the aerospace sector. This acquisition enhances Diploma's Controls sector operations and expands its footprint in the attractive North American aerospace market....more

London Stock Exchange News Service (RNS)January 24, 2024

Diploma PLC Q1 Trading Update: Positive Start to the Year

Diploma PLC reported a positive Q1 trading update for the three months ended 31 December 2023, with group revenue growth driven by both organic performance and contributions from acquisitions, particularly in the Controls and Seals sectors....more

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