Hobgoblin is still running, as has been pointed out. Freed Reed (as a shop) closed a very long time ago, but is still running as a record label. However in its place there are now many more shops specialising in free reed and other folk instruments.

fRoots shut down because of lack of advertising, as the internet has taken over.

Record shops and record labels (in all genres) are struggling as people move away from physical CDs to downloads and streaming. Many more musicians are self-publishing rather than do it through a record label.

The world has changed, but these aren't necessarily symptoms of a decline in folk music.