Sustainability ambition in the UK is loud, visible and increasingly urgent. Governments are setting targets. Large corporates are making bold commitments.  But delivery? That happens somewhere else entirely.

It happens in the middle.

Mid-sized businesses — the UK’s “missed middle” — are where strategy meets reality. They sit at the centre of supply chains, employ over 8 million people, and generate around £1 trillion in turnover. They are not a niche. They are the engine room.

And yet, when it comes to sustainability, they are being overlooked.

The risks of inaction and missed opportunities are challenging their business resilience, UK national targets and corporate commitments.

Read our manifesto to find out how policy makers, corporate bodies, industry and trade bodies, media and event organisations can help drive the change needed so we can all share the economic, environmental and social rewards.

Download: Not Sustainable Mind the Gap 2026

Missing the middle is not sustainable.

Contact us if you are ready to help unlock the UK’s greatest untapped advantage.