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We recognise that, as a global business, we need to rise to the challenges and opportunities of environmental sustainability by continually improving our environmental performance.

Our vision

“To contribute to improving the environmental sustainability of the legal sector by empowering our people to make a positive impact”

Our management framework, ambition, enthusiasm and data are shared across our international network. We work closely with our people, service partners, clients and external stakeholders to make a difference to the world around them. We are executive members of the Legal Sustainability Alliance (LSA); a collective effort by law firms in the UK to take action to improve the environmental sustainability of their operations and activities. We report our UK carbon footprint annually via the LSA Annual Report.

Our integrated energy and environmental management system

Our approach is underpinned by our UK ISO14001 and ISO 50001 certified environmental and energy management systems in the UK and the Netherlands. The scope of our management systems are:

  • UK - “Provision of buildings engineering, facilities management and front of house services at Allen & Overy in London and Belfast”

  • Netherlands - “The provision of business services in the areas of catering, cleaning, security, reception, document management and reproduction and building management at Allen & Overy in Amsterdam”

Our Carbon Footprint

Our reported global carbon footprint for 2017 has decreased from 33,048 tCO2 equivalent (using national emissions factors for grid electricity) in calendar year 2016, to 32,320 tCO2 equivalent in calendar year 2017. This decrease of 2.2% is within the context of a reduction in employee numbers of 2% and a small reduction in occupied office floor space of 0.7% globally.

Our carbon footprint has therefore remained almost static on a per capita and per unit area basis.
The most significant reasons for our reduced carbon footprint are:
  • reduced electricity consumption and reduced grid emissions factors more than offsetting an increase in international air travel.
  • reduced consumption of fuel.


* Using national emissions factors for grid electricity


Environment contact

Alan Sweeting
One Bishops Square
London E1 6AD

Telephone icon +44 20 3088 7454

Environmental Policy Statement


Energy Policy Statement


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