'It's more focused this year,' said WS head of CSR and panel judge Brendan May. 'We want charities to come to us with a specific idea, so that we are just implementing it.'
Charities are eligible if they lack a full-time comms team and have a turnover of less than £2m.
Last year WS worked with Bully-Free Zone, Community Forests Northwest and the National Endometriosis Society.
Charities can apply at www.mediatrust.org.