Bandname.com - Fee-based band name registration and lookup. - http://www.bandname.com/
bt Media Group - Offers, web design, event promotion, and custom graphics. - http://www.btmediagroup.com/
Bandmonster - Custom printed promotional products for bands, musicians, labels, including mousepads, coasters, t-shirts, stickers, keychains, and watches. - http://www.bandmonster.com/
Baker/Northrop Media Group - Los Angeles, USA -based indie promotion company with eclectic roster of artists. - http://www.bakernorthrop.com/
Baby Tiger - Based in Edinburgh, United Kingdom. Offers acts from all over the world to play alongside local bands. Also runs Edinburgh's alternative August music festival, Tigerfest. - http://www.baby-tiger.net/
BandHub - Campaign, commerce and community management for bands. Band hosting and web applications. - http://bandhub.com/