| Artist | Year at the Gathering |
| B Skan | 2016 |
| Babytron | 2022 |
| Bad Dream 17 | 2009 |
| Bake Lo | 2014, 2017 |
| Bankrupt Records | 2009 |
| Bass Head Music | 2014 |
| Bats On Fire | 2007, 2009 |
| Beast Mode | 2013 |
| Beast Motion | 2017 |
| BeBop the Clown | 2006 |
| Beetlejuice & Shuli | 2008 |
| Ben-E-G | 2006 |
| Beyond Top Secret | 2018 |
| Big B | 2013 |
| Big B | 2009, 2010, 2011 |
| Big Buzz | 2018 |
| Big Hoodoo | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022 |
| Big Jay Oakerson | 2007 ,2015 |
| Big Slack | 2006, 2007 |
| Big Tre | 2006 |
| Biohazard | 2014 |
| Biz Markie | 2012 |
| Bizzare | 2008, 2009, 2012 |
| Black Flag Music | 2016 |
| BlacMass | 2006 |
| Blahzay Roze | 2019, 2021 |
| Blaze Ya Dead Homie | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 |
| Blestenation | 2010 |
| Bloodbath | 2007 |
| Bloodshot | 2007 |
| Blowfly | 2013 |
| Blue Felix | 2010 |
| Bobaflex | 2006 |
| Bobby Brown | 2011 |
| Bobby Sick | 2012 |
| Bobcat Goldthwait | 2012 |
| Body Bag Syndikate | 2017 |
| Bone Crusher | 2014 |
| Bone Thugs-N-Harmony | 2007, 2016, 2019 |
| Boo Clan | 2011 |
| Boondox | 2007, 2008, 2009, 2010, 2011, 2013, 2014, 2015, 2016 |
| Brian Posehn | 2011 |
| Brimstone | 2007 |
| Brokencyde | 2019 |
| Brotha Lynch Hung | 2010, 2013, 2017 |
| Bubba Sparxxx | 2002 |
| Buckwheat Groats | 2013 |
| Bukshot | 2012, 2013, 2016, 2017 |
| Bulletproof | 2015 |
| Bulletproof & The Fool | 2017, 2019 |
| Bushwick Bill | 2003 |
| Busta Rhymes | 2011 |
| Butcher Babies | 2018, 2019 |
