We only share your personal data with those external organisations who carry out our surveys, or send you mailings between each survey. NatCen Social Research and Kantar are the independent research organisations that have been contracted to carry out the Age 50 Survey, on behalf of the Centre for Longitudinal Studies at University College London. Kantar are also conducting the COVID-19 Surveys. Copyprint UK carry out the mailings between each survey. These external organisations are contractually bound to UCL to keep your data safe and secure, and are accredited to data security standards. The organisations we contract to conduct surveys may appoint sub-contractors to send you letters, emails or text messages. Sub-contractors will always be contractually bound to comply with data protection law. We also share your email addresses with Mailchimp, in order to send you emails. For more information about how Mailchimp processes data please see Mailchimp’s privacy notice.