• February 4, 2026

Power 30 Most Sustainable Agencies 2025-26 unveiled!

Power 30 Most Sustainable Agencies 2025-26 unveiled!

Power 30 Most Sustainable Agencies 2025-26 unveiled! 1024 682 micebook.

micebook and event:decision revealed the Power 30 Most Sustainable Agencies 2025-26 at EXPO this week, shining the spotlight on the agencies leading the way on ESG.

Our second Most Sustainable Agencies list recognises 30 event agencies in the UK market, based both on their sustainable internal business practices and their ability to deliver sustainable outcomes for client events.

There were eight new entrants and 22 agencies holding their place for a second consecutive year. While we are still not officially ranking the agencies (this remains a long-term aim as the initiative continues to evolve and gain momentum), there were several standout entries worth highlighting.

These include emc3 for Best Performing Agency overall, SLX as the Highest New Entry, and Broadsword as the Biggest Climber.

The full list of 30 agencies are:

2Heads
Amex GBT Meetings & Events
BCD Meetings & Events
BeaconHouse Events
BI WORLDWIDE
Bray Leino Events
Brighter
Broadsword
Cheerful Twentyfirst
Chorus
CTL Communications
DRPG
Dynamic Events
emc3
Event Concept
Identity
Impact XM
Lemon Lane
MCI UK
Nteractive
Powwow Events
Principal Global Events
Production bureau Ltd
Sledge
SLX LTD
Stitch
Top Banana
veSpace
XSEM
Zentive Agency

Agencies completed a rigorous and wide-ranging questionnaire, requesting data on both agency strategy, tactics and accreditation, followed by an analysis of real event case-studies to enter the Most Sustainable Agencies. Submissions were scored, not judged, then benchmarked to provide the clearest view of event agency sustainability available.

Matt Grey, director at event:decision said: “Benchmarking initiatives like the Power 30 Most Sustainable Agencies are about more than recognition. They enhance individual agency performance while contributing to the broader goal of creating a more sustainable event sector.

“By encouraging collaboration and knowledge-sharing, this campaign empowers agencies to navigate the complexities of sustainability while adapting to the ever-evolving events landscape. If you’re recognised in this year’s Power 30, congratulations – well done!”

Susie Harwood, micebook editor, added: “This list recognises agencies that are not only taking responsibility for their own business practices but are also actively enabling more sustainable outcomes for the events they deliver. It provides a valuable reference point for corporates looking to work with agencies that take sustainability seriously, in practice rather than just in principle.”

We have created a comprehensive digital report (see below) featuring headline stats and trends, as well as spotlights on each agency.

 

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