ESG & Sustainability
Diploma PLC & M Seals: Driving Value Sustainably Together
Updated 30 March 2026
With over 60 years of expertise in sealing solutions, M Seals provides environmentally responsible, customised and standard sealing solutions for diverse global industries.
As part of Diploma PLC, M Seals benefits from a decentralised model that fosters innovation, sustainability, shared expertise, and global resources. This collaboration strengthens M Seals’ ability to deliver tailored solutions, enhance quality while reducing environmental impact, and expand its market reach, ensuring continued success in key industries.
By combining industry-leading expertise with a focus on sustainability, M Seals ensures clients achieve both operational and environmental objectives.
Download the full presentation or continue reading below.
Diploma PLC has been awarded an EcoVadis Silver medal at Group level, placing them in the top 15% of companies assessed.
EcoVadis Sustainability Rating
- M Seals ESG Presentation4.0 MB
Focused Strategy
Our focused strategy supports our businesses in delivering their value-add missions while providing environmental, societal, and commercial benefits.
We have a clear sustainability framework, with clear objectives and targets, and embedded in our business strategy.
Our Commitments
- Climate change
- Waste
- Colleague engagement
- Diversity, equity & inclusion
- Health & safety
- Supply chain
