Pegasus Publishing
- Filk dealer
- http://www.pegasuspublishing.com

Filklore Music Store
- Filk and other albums, mainly UK and European artists. Credit cards accepted.
- http://www.filklore.co.uk/

Random Factors
- Dealers who also serve as Leslie Fish's publishers. Their on-line catalog identifies out-of-print and rare filk items.
- http://www.random-factors.com

Love Song Productions
- New England filk tapers and publishers, founded in 1993 by J. Spencer Love and Persis Thorndike.
- http://www.lovesong.com

Firebird Arts and Music of Oregon
- Filk and folk publishers.
- http://www.firebirdarts.com/

Prometheus Music
- Publisher of topical folk and filk music CDs and songbooks, focusing on themes of space, technology, science-fiction, and fantasy. Includes the Virtual Filksing, a large source of free, downloadable MP3 and RealAudio filk recordings.
- http://www.prometheus-music.com

DAG Productions
- The first filk production company that is still in business, founded by Eric Gerds. Also hosts filk radio.
- http://www.filk.com