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Diploma delivers sustainable quality compounding, consistently balancing ambition with discipline. We have a long track record of delivering attractive shareholder value with strong organic growth and great returns - and there’s more potential ahead.

Learn more about our investment case.

Why invest

Our strong first half performance demonstrates how we balance ambitious earnings growth with disciplined returns – in good times and bad – to build on our long track record of sustainable quality compounding.

Johnny Thomson Group CEO

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Our strategy

Our strategy is to build high-quality, scalable businesses for sustainable organic growth.

Our strategy

Our businesses

We have a diverse portfolio of businesses supporting customers across many different markets.

Our businesses

Leadership

The depth and quality of leadership is critical to our success as we grow and scale.

Leadership

Our impact

Our businesses provide critical products and services that make customers' lives easier and help them deliver better results.

Our impact

FY25 highlights

11%

Organic revenue growth

12%

Revenue growth

22.5%

Adjusted operating profit margin

21%

Adjusted EPS growth

105%

Free cash flow conversion

0.8X

Net debt/EBITDA

20.9%

Return on adjusted trading capital employed (ROATCE)

5%

Dividend growth

Download our seven-year record

Latest documents

See our most recent results, reports and presentations, including half-year results and trading updates.

Download our latest Annual Report

Half Year Results 2026 View document
Trading Update View document
Handbook of Diploma Businesses View document

See our results

Regulatory news

Regulatory news

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Share price

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Shareholder centre

Financial calendar

Financial calendar

Investor contacts

Holly Gillis

Head of Investor Relations

T: +44 (0)20 7549 5700
E: investors@diplomaplc.com

IR contacts