Sustainability data is for the calendar year 2017.
The majority of our data is collected quarterly through our Group financial reporting system. This covers all subsidiaries of the Group – 133,000 direct employees. It does not include associate companies or joint ventures. Data in our financial reporting will include associate companies not covered in our sustainability data.
Some people data is collected through an HR Survey issued to our global HR directors. This covers 79% of the Group.
Our carbon footprint, some environmental and some people data is verified by Bureau Veritas, an independent assurance provider. See their verification statement.
Our per person carbon footprint figures are calculated using data for full-time equivalent employees (FTEs).
Case studies and examples from our companies are collected via an annual survey. Each WPP company has nominated a sustainability representative to compile this, and surveys are signed off by the company CEO before submission to WPP.
Guidelines and reporting frameworks
The content of this report is prepared in accordance with the core option of the Global Reporting Initiative’s (GRI) G4 guidelines. See our GRI G4 context index for a list of disclosures and their location in our Report.
WPP are members of the United Nations Global Compact (UNGC) and this website and our Annual Report forms our third communication on progress. We provide an index which summarises our approach and progress on each of the UNGC’s 10 principles.