About Green Knight
Welcome to Green Knight. We work with organisations large and not so large, to help them develop effective environmental, social and governance (ESG) strategies. We can help you to manage those anticipated and unexpected events as you create a successful future.
As stakeholders have ever-increasing expectations of the role and responsibility of business in addressing societal and environmental challenges, no organisation can afford not to respond and that’s where we can help. Integrating sustainability into your organisation’s everyday activities reduces financial and reputational risk and will help you to identify opportunities created by a closer alignment with the expectations of your stakeholders.
We can help you to develop and implement a strategic approach to sustainability both in your operations and across your supply chain. Our extensive network across business, academia and NGOs allows us to create a bespoke solution for you. Green Knight’s expert team have over 30 years’ operational experience at Board level and in academia and we are proud to work collaboratively with manufacturers, retailers, third-sector organisations, trade bodies, utilities companies and governmental bodies to successfully meet their diverse sustainability challenges.
The overall aim of Green Knight is to help organisations reflect the needs of society and the natural environment, alongside the commercial drivers of a successful enterprise. We can also help with engaging your teams, organising and delivering conferences and events, independent chairing and facilitation and consortium building to ensure that the processes for a sustainable future are embedded across your organisation.
Dr Gavin Milligan PhD CChem MRSC FIFST FRSA, founder and Lead Consultant at Green Knight Sustainability Consulting Ltd, is a Chartered Chemist, Member of the Royal Society of Chemistry, Fellow of the Institute of Food Science and technology, Fellow of the Royal Society of Arts, and alumnus of Harvard Business School, the Cambridge Institute of Sustainability Leadership and the Institute for Management Development in Lausanne.
We are members of the British Standards Institution and the Supplier Ethical Data Exchange.
Green Knight Sustainability Consulting Ltd is a company registered in the UK, company number 10749198, VAT registration number 275805086. All content copyright © Green Knight Sustainability Consulting Ltd 2025.
Publications
We engage with sustainability through the media as well as with our clients. You can click below to see links articles, documents and publications from our Lead Consultant, which have been published in peer-reviewed academic journals, the trade press and other channels.
An article in the September 2024 issue Institute of Food Science and Technology’s Journal discussing the concept of sustainable food systems: Pages 16-19
Organizational Resilience to Supply Chain Risks During the COVID-19 Pandemic (2022): Click Here
Supply chain agility responding to unprecedented changes: empirical evidence from the UK food supply chain during COVID-19 crisis (2021): Click Here
An article in the March 2020 issue Institute of Food Science and Technology’s Journal discussing the impact of wasted food: Pages 10-11
A discussion in New Food magazine around considerations in addressing the climate emergency: Click Here
A paper of examining efficiency losses: Horton, P., Bruce, R., Reynolds C., and Milligan, G. (2019). Food Chain Inefficiency (FCI): Accounting Conversion Efficiencies Across Entire Food Supply Chains to Re-define Food Loss and Waste. Frontiers in Sustainable Food Systems, 3, pp.79 which you can find Here
A series of articles on choices in supply chains: Click Here
A piece on the value of the SDGs as an integrated approach to managing sustainability in the agri-food system (on page 16): Click Here
A series of articles on the plastics challenge: Click Here
The NFU publication of our blog post on the moral imperatives in agriculture: Click Here
A document published by the IFSTAL progamme: Click Here
A review from workshop sessions at edie Live 2018, one of which was hosted by our Lead Consultant: Click Here
FoodDrinkEurope’s Food For Life 2018 Implementation Action Plan to which we contributed an analysis of how the initiative aligns to the SDGs: Click Here
A webinar in which our Lead Consultant participated representing his then corporate employer: Click Here
A panel discussion at the Sedex 2018 conference moderated by our Lead Consultant: Click Here
An interview with the Food Knowledge Transfer Network linked to a session we ran at one of their events: Click Here
In-procurement September-October 2017
An article in Food Manufacture on valorisaion of food waste: Click Here
In-procurement July-Augist 2017
Testimonials
We don’t name our clients unless they choose to talk about the work we do with them, so these testimonials and the case studies you’ll find elsewhere on the site are framed around job roles and organisation types rather than particular individuals.
If you want to talk to a client we can provide a reference.
“An excellent piece of work”. “You ooze integrity”. MD, European agrichemicals business
“I will definitely recommend you”. HS&E Manager, UK food manufacturer
“I’d just like to second Jane’s thanks. The session went well and we have had good feedback, so much appreciated”. Managing Director, UK energy specialist
“Your writing is very clear and the article is very compelling”. Editor, UK Professional Journal
“Thanks very much for your session – it was 100% what we were hoping for”. Comms Director, global feed business
“****!, he’s a clever bloke”. Chair, international engineering group
“They were particularly keen on getting access to your expertise (specifically they wanted you, not anyone else)”. Manufacturing business support programme coordinator
“Thought-provoking and insightful”. Commercial Director, UK-based manufacturing plc
“Brilliant”. MBA Programme Director, UK Triple Crown Business School
“I very much enjoyed the session – thank you”. Head of Marketing & Development, UK-based manufacturing plc
“Many thanks for another great session”. Group Sustainability Coordinator, UK-based manufacturing plc
“We now have a real understanding of how to approach our supply chain”. Joint MD, UK branded food manufacturer
“… interesting and valuable …”. MD, UK events business
“The best exposition of sustainability I’ve ever seen”. Chair, UK branded drinks manufacturer
“That’s really useful and we’ll use these recommendations as a basis for starting some thinking in this area”. Senior Policy Advisor, UK Learned Society
“…very much enjoyed your session…and derived a lot of useful knowledge, insight and experience”. Professor of Circular Economy, UK university
“I’ve had loads of comments back about how much people enjoyed your presentation, and am sure it will help in our journey around sustainability”, “much appreciated and well received”. QSE Director, UK branded plc
“… well balanced, thought-provoking and highlighted the real issues”. Owner, UK agri-food business
“Gavin’s business is fabulous for all things sustainable”. Client Manager, UK food business
“I really like the way you chair – very effective and inclusive”. FoodWasteNet member
“Our initial response is very positive, we thought it identified some valuable strategic opportunities”. Owner, UK agri-food business
“It was very impactful and fun, I love your style”. Course Director, UK business school
“We were delighted to have you and the students commented today on how insightful your talk was”. Business School Professor, UK Russell Group university
“This is a great piece of work! It really fleshes out the simple (and also large) things companies can do to work towards the SDGs.”. Board Director, UK-based ethical trade organisation
“Thank you from all of us for your help last week … the session received great feedback”. Workplace Engagement Lead, UK academic development programme
“Insightful and challenging; Gavin Milligan, would expect no less”. Strategy and Sustainability Manager, UK training and research institute
“Your presentation [was] very engaging, interesting, passionate and one of the best from our guest speakers“. Director, PhD Programme, UK business school
“Your talk was extremely interesting and was the highlight of the day. Sustainability is such an important issue and I will certainly recommend you if I’m asked for an expert on the subject“. Partner, major regional law firm
“The materiality review process introduced by Gavin proved to be extremely useful in helping us attain ISO14001:2015 certification, enabling the auditor to evidence leadership commitment and the requirements of interested parties“. HS&E Manager, UK-based food manufacturer
“Many thanks for your time. Very enlightening“. Head of Sustainability & Corporate Responsibility Manager, UK-based plc
“Thanks for hosting the workshop – it was really good and great in getting us thinking about how [the organisation] works with the SDGs“. Membership Manager, UK-based NGO
“Thank you again for a very impressive and amusing talk – I hope you enjoyed it as much as the audience did!”. Innovation Officer, University of Cambridge
“Thank you so much for your time at the conference on Tuesday. Overall your presentation received a 4.4 on average out of 5. I hope that you will be interested in working with us on future conferences“. Senior Conference Producer, UK media organisation
“Your work with risk has been valuable and I would like to discuss this further“. Chair, UK-based NGO