Research a list of associations to find contact details

Hi,

I'm looking for help with researching the organisations (just over 100) listed here: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/501929/List_of_specialist_societies_Feb_16v3.pdf

I'd like to find the contact details (mainly name and email) of the editorial staff of their member magazines or publications (if they have any).

Not all will allow access, so an email address for their marketing or comms team would be an ideal substitute - see image as an example.

Thanks a lot,

Chris