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In more places than you'd imagine

Diploma PLC is a value-add solutions group, providing critical products and services to customers across a wide range of markets. We provide the bolts that hold planes and race cars together, design the seals that make wind turbines work and help surgeons find the best solutions to deliver better patient outcomes.

Discover more about us

What are value-add solutions?

From bespoke solutions and exceptional customer service, to technical support and supply chain management, our businesses provide value-add solutions that make customers' lives easier and help them deliver better results.

Here are some of the ways Diploma businesses add value for customers >

Why invest in Diploma

We balance ambitious organic-led earnings growth with the discipline of strong returns – the result of this is sustainable quality compounding.

Diploma has a proven record of compounding growth, delivering a total shareholder return in excess of 850% over the last decade*. And we're just getting started!

*to 30 September 2025

Investors

Why Diploma is a great home for your business

Are you thinking about the future of your business? Planning for succession or retirement?

Diploma is home to many founder-led businesses that have grown through dedication, expertise and shared values. We help you take what you’ve built to the next stage, while protecting your legacy.

Hear from other business owners who’ve chosen Diploma for their next chapter.

Entrepreneurs

How we're empowering people to grow and succeed

Diploma offers a rare blend of autonomy, responsibility and opportunity in an international, fast-growing and diverse group. The accountability of being an entrepreneur and the resources of a FTSE 100, without the bureaucracy.

We have a down-to-earth, open culture where people are empowered to grow, challenge themselves and make a real impact.

People

Culture and values

Engaging our people

Diversity and inclusion

Career and development

Latest news

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This week, in recognition of #IWD2026, we’re spotlighting some of the brilliant women across Diploma PLC. First up is @Melissa Lee, HR Director at @Hercules Sealing Products, who shares her reflections on the the ripple effect of investing in others. 👉 Discover Melissa’s story and the impact of #GiveToGain: https://lnkd.in/en6vmrD5 Join us in celebrating the women shaping our business and inspiring the next generation. #IWD2026 #WomenInLeadership #GiveToGain

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Spotlighting the brilliant women across Diploma PLC

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@Diploma PLC’s growth agenda is underpinned by a diverse and inclusive culture. Different perspectives help us make better decisions, deliver more for our customers and create a workplace where everyone can thrive. We aim to achieve 40% female representation in our Senior Management Team by 2030 and are making steady progress, with women now holding 32% of SMT roles. We’re recognised in the FTSE Women Leaders Review 2026 as one of the top four companies for progress on gender balance over the past five years. This week, in recognition of #IWD2026, we’re spotlighting some of the brilliant women across Diploma PLC as they share their career journeys, leadership insights and reflections on the power of giving to gain. #IWD2026 #WomenInLeadership #GiveToGain

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