Now in its third year, event:decision and micebook are once again teaming up to bring you the Power 30 Most Sustainable Agencies UK, an annual list of the definitive top 30 most sustainable event agencies, by operation and by outcome.

Open for entries 2026-7!

The Power 30 Most Sustainable Agencies, now in its third year, are evaluated based on sustainable internal business practices and the ability to deliver responsible & sustainable outcomes for event clients. Unlike many industry recognition programs, this initiative is scored according to pre-published criteria rather than being subjectively judged. The results are qualified, scored, and benchmarked to produce a list of the best performers in sustainability, showcasing real capabilities and proof points for responsible agencies.

See the agencies recognised in 2025-6 here.

Thank you to our supporters:

As responsible business practice and event delivery becomes a growing priority for clients, agencies that leverage industry data are able to progress and position themselves as leaders in environmental and social responsibility.

Recognition in the Power 30 enables agencies to showcase their commitment to these practices and attract clients who value stewardship and ethical delivery. More broadly, the campaign helps raise the standard across the industry. Power 30 encourages continuous improvement, collaboration, and knowledge-sharing, equipping agencies to navigate the complexities of sustainability while adapting to the evolving demands of the events sector.

Let’s continue this journey together…

Congratulations to the recognised agencies this year and those recognised in the 2024-25 Power 30. For those striving to be included in next year’s edition, the campaign serves as both a benchmark and a motivation to continue advancing sustainable practices. The journey toward a more sustainable events industry is ongoing – and every step forward counts.

For any enquiries about the Power 30 Most Sustainable Agencies, including partnership opportunities, please email power30msa@eventdecision.com.

ENTER HERE