Q3 Trading Update

17 July 2025

Diploma PLC issues a trading update for the nine months ended 30 June 2025.

·      Strong Q3 performance. Full year upgrade to organic growth of 10% (from 8%).

o  Organic growth YTD of 10%: continuation of positive trends from H1.

o  Reported growth YTD of 12%: +4% from acquisitions, partly offset by FX.

o  Strong operating margin: in line with expectations (FY guidance c.22%).

 
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·      Invested c.£39m in two quality acquisitions:
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o  Haagensen A/S (Seals), adding to M-Seals' capability in Denmark.

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o  Alpha Laboratories (Life Sciences), marks our entry into the UK In Vitro Diagnostics market.

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Johnny Thomson, Chief Executive Officer, and Chris Davies, Chief Financial Officer, will host a conference call for analysts and investors this morning at 8:00am (UK time).

Conference call dial in details:

• Dial in: +44 (0) 33 0551 0200

• Password: Diploma Q3

The next scheduled update is our full year results on 18 November 2025.

NOTE TO EDITORS:  

Diploma's businesses deliver practical and innovative solutions that keep key industries moving. They have the technical expertise, specialist knowledge, and long-term relationships required to deliver value-add products and services that make our customers' lives easier and their outcomes better. These value-add solutions drive customer loyalty, market share growth and strong margins.

Our decentralised model means our specialist businesses are agile and empowered to deliver the right solutions for their customers, in their own way. As part of Diploma, our businesses can also leverage the additional resources, opportunities and expertise of a large, international and diversified Group to benefit their customers, colleagues, suppliers and communities.

We employ c.3,300 colleagues across our three Sectors of Controls, Seals and Life Sciences. Our principal operating businesses are located in North America, the UK, Europe, and Australia.

Diploma aims to deliver sustainable quality compounding, and over the last fifteen years, the Group has grown adjusted earnings per share (EPS) at an average of c.16% p.a. through a combination of organic growth and acquisitions.

Diploma is a member of the FTSE 100.

Further information on Diploma PLC can be found at www.diplomaplc.com

The person responsible for releasing this Announcement is Anna Lawrence, Group Company Secretary.

LEI: 2138008OGI7VYG8FGR19