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The Green Consultancy: professional, 4_tgc-placeholder-100px - Peter Hawtin - peterhpractical & proven

Since The Green Consultancy was founded in 1992, we have become a leading independent specialist in energy, carbon and environmental management, including legal compliance. We have a reputation as professionals who provide practical and sustainable solutions to reduce costs, risks and environmental impacts.

In 2018, we were acquired by JRP Solutions. We continue to operate TGC as a separate brand to recognise the expertise we have in specific markets and to maximise the goodwill and awareness we have gained in those markets since our foundation.

Put us to the test NOW!  To discuss your requirements please call John Treble on 01761 419081 or email John@GreenConsultancy.com

We’re professional

Our professionalism is epitomised by each and every one of our expert, experienced team. The Green Consultancy has the benefit of being both independent and wholly objective.

Our rigorous, scientific methodology sets us apart from – and ahead of – our competitors, and enables us to achieve excellence for our clients, in whatever form it is required.

The level of our professionalism is further evidenced by our accreditations and memberships – see link below.

Meet The Green Consultancy team

View full details of our accreditations and memberships

Energy efficiency methodology

We’re practical

In this age of rapidly changing ideas and technologies, we keep up to speed with developments at the same time as keeping our feet on the ground.

We’re geared to complementing your existing in-house resources, in pursuit of your objectives.

Unlike some, we’re never distracted by the allure of so-called ‘eco bling’ (which often takes the form of exciting and new – but often expensive and unproven – technology). Instead, we focus on helping our clients realise the potential of low-cost, pragmatic options for carbon and energy reduction that deliver certain results as quickly as possible.

We’re proven

During the last 20 years, we have worked for organisations with annual energy consumptions that range from £100,000 to £20 million. Our clients comprise over 1,000 private and public sector organisations – and includes 60% of the UK’s universities and over 100 NHS Trusts.

View our client list
View our case studies and testimonials

Our work for these organisations has yielded impressive results on an array of different energy efficiency tasks, and attracted generous praise and comments. The extent and nature of our experience also enables us to offer performance guarantees on the projects we undertake, meaning that you can be certain of the outcomes we will achieve on your behalf.

Put us to the test NOW!  To discuss your requirements please call John Treble on 01761 419081 or email John@GreenConsultancy.com

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Greatest savings for lowest cost

At the heart of our services is our unique rigorous and scientific energy efficiency methodology - guaranteeing you exceptional value for money.

More about our energy efficiency methodology

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University of Oxford

“I have worked with and for energy consultancies for more than 20 years, and the quality of The Green Consultancy’s work is some of the best I have seen.”

Philip Pike, Former Energy Manager

See case history of our work for University of Oxford

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Total Energy Management

To help you manage energy in the most complete and professional way possible, The Green Consultancy provides a comprehensive integrated range of services.

More about Total Energy Management

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“What I really appreciated about working with The Green Consultancy is their uncompromising promotion of the highest standards of building design in conjunction with efficient mechanical systems and integrated renewable energy systems. I unreservedly recommend their services.”

Professor Susan Roaf AAdipl PhD ARB FRSA School of the Built Environment, Heriot-Watt University


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"John Treble, Founder and Client Services Director of The Green Consultancy, is a true expert on energy management and energy efficiency. He has a no-nonsense grasp on best practices. If you want independent expertise to sound out your energy efficiency plans then he’s well worth contacting."

Simon Brown, Managing Director, 2degrees Solutions


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“John Treble, Founder and Client Services Director of The Green Consultancy, puts clients at the forefront of all business decisions and is tenacious in ensuring that they get what they need. He is honest and straightforward with high and exacting standards.”

Heather Marchant, Former Account Team Leader, The Carbon Trust