The Big Half 2025

🏃‍♂️ …taking on The Big Half – and I’d love your support for the British Heart Foundation (BHF)! 💥

This September, I’m running The Big Half in London alongside my colleague Steve Potts (Royal Mail CIO) in support of the British Heart Foundation (BHF). Click here to see what they do ❤

️As Royal Mail’s national charity partner, BHF is working closely with us to make a real difference and your support can help take that even further. 🚀

We’re both passionate runners who enjoy pushing ourselves and this 13.1-mile challenge is the perfect way to do just that while supporting a cause that truly matters.

Thanks for your support and helping to power life-saving work across the UK. 🙏

I will give my very best at the race.

Martin Seidenberg, IDS Group CEO