Our Clients

We’re proud to be associated with each and every one of our clients. These range from small, single-site operations to clients with over 500 sites. We work in partnership with them to add value in terms of energy and/or waste management.

Many of our clients have commented on how much we’ve helped them. It gives us a great sense of achievement to know we’re making a big impact and that our actions are directly contributing to our clients’ success.

We are proud to work with:

Client Testimonials


I think what makes Sustainable Advantage stand out from their competitors is the fact that they try harder. It sounds easy but they really do get into the detail and meticulously consider every angle to help us obtain the best gas and electricity rates. Whether that is when they go to market, the suppliers they invite to tender, how they validate the tender data all the way through to their tender negotiation and subsequent account management.

PrezzoFinance Director
Pret A Manger

Sustainable Advantage have worked with us for over 4 years and are very much embedded within our business as our energy support services partner. The success of the relationship has come from the fact that they offer so many energy services that not only reduce our energy cost but that help everything energy related run smoothly. They procure all our energy, prepare budgets, validate invoices monthly, produce consumption reports, conduct energy audits, advise on capex programs, install sub-meters,  ensure that every new site that opens has the right meter and is ready for fit-out and site opening, they train staff and more.

Pret A MangerFinance Director

We engaged Sustainable Advantage to help us reduce our energy usage via staff engagement and behavioural change. This is no easy task within a hospital environment where many staff are reluctant to change.

NHSProcurement Manager

Bowlplex is one of the UK’s leading bowling and entertainment companies and was recently acquired by the 2 leading players in the space. A number of years ago we entered into a CVA and as a result had a poor credit rating. The energy suppliers wanted us to pay a £300k security deposit. It was a justifiable request on paper however Sustainable Advantage felt the business was in a much better financial position. They worked tirelessly for 2 months to convince the suppliers to waive the deposit requirements which they eventually did


We appointed Sustainable Advantage to manage waste services across all our 200+ sites, a number of which include clinical as well as your standard waste streams. Sustainable Advantage analysed our spend and projected savings in excess of 20%, in reality we were delighted when actually they delivered savings in excess of 30%

CGLHead of Procurement
Alpha Schools

Sustainable Waste Services have looked after our private school portfolio in London and Home Counties plus our regional city colleges for the past 5 years and do a fantastic job. They ensure a speedy response to any management issue (which is rare) and take the trouble to get to know the individual site’s characteristics

Alpha SchoolsHead of Operations
Kew Green Hotels

“We really struggled to manage all of the waste contractors across our 52 hotels. Service levels and communication levels were low. We hired Sustainable Advantage top deliver cost savings but to also improve – the resolution of missed collections, increase recycling levels, divert as much waste as possible from landfill, improve reporting and compliance and to proactively make changes via good account management. We have been delighted with all the support they have given.” Kris Legg

Kew Green HotelsProperty Director

Contact Sustainable Advantage

Sustainable Advantage
Hersham Technology Park
Molesely Road
KT12 4RZ
Tel: 0203 544 2030
Email: [email protected]

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