Are you working to eliminate single-use plastic bottled water and encourage refilling instead?



The #OneLess pioneer network is a group of organisations that are leading London’s refill revolution.

Our members include corporates, councils and local authorities, academic institutions and schools, emerging innovators, landmark London events and venues, small and medium sized enterprises, community groups, and grass-roots campaigns – along with many others.

All the #OneLess pioneers are working to reduce or eliminate single-use plastic bottled water and encourage and enable ‘refilling’ instead.

Pioneering London's refill revolution

The #OneLess pioneers are spearheading London’s transition to a ‘refill society’ and rethinking the way that we hydrate the city.
They are taking action.

Making changes in the workplace, and at venues, events, shops, restaurants and London attractions

Making changes in public spaces such as streets, parks, and other places where people gather

Changing behaviour, social norms, mindsets and perceptions

Designing new solutions and business models that keep our city hydrated without single-use plastic

Redesigning London’s drinking water infrastructure to support refilling

Informing and influencing others to think and act differently

We help the #OneLess pioneers to

Overcome challenges they are encountering

Showcase the pioneering work they are doing

Access new insights and solutions

Connect with each other and learn from each other

Start collaborations and partnerships

Raise their profile

#OneLess pioneer network events

Pioneers profit from a specially developed programme of events, convened and facilitated by #OneLess. All events are uniquely designed to provide inspiration and to help pioneers showcase their achievements, overcome barriers, learn from each other and experts, connect with the right people, and build partnerships and collaborations.

Find out more

Meet some of the #OneLess pioneers


Do you want to join the #OneLess pioneer network and be part of our growing community?

We welcome new members who can demonstrate that they meet the following joining criteria:

  • You are working to reduce and ultimately eliminate bottled water, and to promote and enable refilling instead

  • You are willing to experiment and try out new approaches

  • You are enthusiastic to share insights and learnings with others

To join, simply complete the short form available via the link below. Once you’ve submitted the form, someone from the #OneLess team will be in touch to confirm that you have successfully joined and provide details about forthcoming #OneLess pioneer network events. There are no costs associated with joining the #OneLess pioneer network.



It seems like a lonely battle sometimes, bringing a concept to market; this collection of people showed me that lots of people across the spectrum of public and private sectors are applying themselves to solving the problem of single use plastics. It was very motivating. Good job #OneLess.

Anthony NewmanApe2o

It was my first opportunity to meet the wider #OneLess community. Therefore it was extremely useful to see the bridges that have already been built and realise the potential to connect much more than before.

Dr. Arturo CastilloImperial College London

Meeting other like minded people and the discussion that follows has been inspirational and hugely encouraging to realise that this objective might really be possible.

Hugh WalkerEden Caterers

Joining the #OneLess Network was an obvious choice for King’s College London, as it mirrors our own vision to make the world a better place through our teaching and research. It’s exciting to work with #OneLess to develop concepts and help solve part of this systemic single-use plastic problem. Our challenge is to make it as easy as possible for our staff, students and visitors to find water refill points within our campuses, and to address negative perceptions around tap water such as taste, health and hygiene.

Oliva PrestonKing's College London

Pioneer network funders

The work of the #OneLess pioneer network is currently supported by the Calouste Gulbenkian Foundation (UK Branch), the Oak Foundation, and Selfridges.

We are looking for additional financial and in kind support from pioneers so we can offer you more.

Please contact us if this is something you wish to discuss.

Email [email protected]