Diana StephensonManaging Director – PR
Diana leads TMC’s PR division, bringing extensive agency leadership experience and a strong track record of building long-term, trusted client relationships.
Before joining TMC in 2024, Diana founded and ran her own marketing and PR agency for more than 25 years. She has led consumer and B2B campaigns at local, regional and national level, working across sectors including health and social care, age-tech, property and franchising.

Diana advises organisations and senior leaders on reputation, thought leadership and communications strategy, helping them identify the stories, perspectives and evidence that will strengthen their position. She combines strategic counsel with a practical understanding of what is required to move a campaign from idea to measurable delivery.
As Managing Director of PR, Diana is also responsible for developing TMC’s PR capability, supporting the team and connecting PR more closely with the agency’s wider strategic, creative, marketing and digital expertise.
Core expertise
- PR and communications strategy
- Thought leadership
- Crisis and reputation management
- Agency and client relationship leadership
Loves
My garden, piano (currently learning), dog walks and time with friends and family
One day I will
Pass a piano exam!
You’ll never guess
I am a Trustee of a charity that builds schools in Kenya





