The Forster Company has been brought on board to handle PR, while Spencer du Bois is to work on branding activity.
Forster Company consultant Lisa Mangan said the agency's brief had a consumer focus, but would include elements of trade PR.
‘We will be promoting the FSB as a body that enables the public to give with confidence,' Mangan said.
‘Donors need to know the body has put a code of practice in place. If they have a problem with the way a charity raises money, they will be able to complain to the FSB,' she added.
Media relations will target national and consumer media.
The FSB board was set up in April, and the organisation is currently going through final consultations ahead of its January launch. As well as handling complaints, its other main role is to promote best practice in the charity sector.
It is open to all fundraising organisations, and members will agree to commit to a donors' charter. In return the members will be able to use the organisation's ‘tick' logo on fundraising material.
Media planning and buying agency AW Media has been appointed to handle advertising and direct marketing.