- B.good (1)
- Baby Robot Media (12)
- Backbeat Foundation (2)
- Backstage Flash (7)
- Bailey Elise McBride (8)
- Bamboozle Festival (2)
- Banana Slug String Band (1)
- Barika (1)
- Barney (1)
- Baur's Listening Lounge (1)
- BB Gun Press (50)
- Bear Orange (11)
- Beast PR (1)
- Beats Antique Records (1)
- Becky Blumenthal (1)
- BeeJeeCo. (1)
- Belafleck.com (8)
- Ben Berry (1)
- Ben Welp (38)
- BenHarper.com (1)
- Benjamin Wallen (4)
- Beth Parness (1)
- Betsy Besser (5)
- Big Eyes Records (1)
- Big Feat PR (1)
- Big Hassle Media (171)
- Big Ol' Dirty Bucket (1)
- Big Picture Media (146)
- Bill Payne (1)
- Billy heigl (6)
- Billy Jeter (1)
- Billycobham.com (2)
- BillyCohen (2)
- Black and Tan Records (1)
- Black Panda PR (2)
- Black Sabbath (1)
- Blackbird Presents (1)
- Blank Newspaper (2)
- Blind Pig Records (1)
- Bloodshot Records (9)
- Blooming Footprint (114)
- Blue Élan Records (2)
- Blue Lotus (2)
- Blue Soap Music (5)
- Blue Steam Productions (11)
- Bluegrass Country Radio (1)
- Bluewater Productions (1)
- BMG US (1)
- BMI (7)
- Bo Adan (3)
- Bob Bradley (2)
- Bob Duffey (1)
- Bob Minkin (1)
- Bobby Lally (1)
- Bobby Martin (8)
- Bohemian Fliques (1)
- Bohemian Foundation (1)
- Bohlsen Group (34)
- Bonaventure (1)
- Bond Moroch (1)
- Bond Music Group (1)
- Bonfire Brewing (1)
- Bonfire Entertainment (16)
- Bonnaroo.com (17)
- Borderland Music Festival (1)
- Boulder Theater (259)
- Bradley Cook (23)
- Brandon Biggs (2)
- Brat Girl Media (1)
- Breakwhitelight (3)
- Brenda Clark (2)
- Brenda Star Walker (1)
- Brenden Nackerman (1)
- Brent (2)
- Brian Turk (2)
- Brittany Barnett (1)
- Brittany Walker (1)
- Broken Jukebox Media (1)
- Brooklyn Basement Records (1)
- Brotherly Love Productions (133)
- Brushfire Records (2)
- Bub (1)
- Buffalo Rose (4)
- Bullhorn Publicity (3)
- Bunbury Music Festival (1)
- Burn Bright Publishing (1)
- BWR PR (3)