BSD-4-clause with different development organizations

Hi,

given a project with a sizable number of files, many of them use a 
BSD-4-clause license but there are variations in the development 
organizations mentioned in clause 3. Is there an elegant way to document 
this in a machine-readable debian/copyright file? Do I have to create 
different stand-alone license stanzas for each variation or is there a 
more efficient way to do it?

Best regards

Peter