To be honest I haven't compared this against the existing list. But I have 938 brands documented at bass-aholic. I'm hoping to get it over 1000 in the next few months.
666 Strings, A Bass, Acacia, ACG, Adamovic, Adler, Age, Airline, Albedo, Alberto Bonafini, Alden, Alembic, Alfonso Iturra, Alien, Alleva Coppolo, Alusonic, Alvarez, Amazing, American Showster, Amfisound, Ampeg Basses, Anastasio Fasanaro, Andreas, Andrews, Andy Viccars, Ansir, Antoniotsai, Antonis, AO, APC, Apollo, Aquilina, Archer, Ares, Arezzi, Aria, Aria Pro II, Aries, Aristides, Armas, Armen, Arrenbie, ARS, Artinger, Ashton, Aslin Dane, Atelier Z, Atkinson, Atlansia, Auerswald, Austin, AV, AW, AXL, Axtra, AYS, Azola, Baccaglioni, Bacchus, BaCH, Bachmann, Baltimore, Baratto, Bariselli, Barker, Barrillon, Basone, Bass Collection, Bass Company, Bass Express, Bass Mods, Bass-Extravaganza, Bassart, Bassix, Basslab, Bassline, Bastec, Baton Rouge, Bayou, Bayou Blues, Bazaga, Bazzism, BC Rich, Beaudoux, Beaver Creek, Becker, Bee, Begali, Behringer, Bell, Belliot, Belman, Benavente, Benedict, Benincaso, Berkowitz, Biarnel, Bilodeau, Bina, Birdsong, Bishop, Blabased, Blackdog, Blackspot, Blade, Blasius, Blazonry, BLDesign, Blindworm, Blueberry, Blues, Boerjes, Bogart, Bolin, Bone, Bootleg, Born To Rock, Bossa, Bottom Wave, Brawley, Breaux, Breedlove, Brian Eastwood, Brian Moore, Brice, Bright, Briken, Brogi, Browne Basses, Browns Guitar Factory, Brubaker, Bruno Traverso, Bruton, Bruunari, BSX, Budagov, Buitano, Bunker, Burch, Burly, Burns, Burnside, Burrell, Buscarini, BV, Caliber, California, CallowHill, Campbell American, Canora, Canvas, Caparison, Capelli, Carella, Carl Thompson, Carlos Carbajal, Carlson, Carmine, Carparelli, Carruthers, Carvin, Cataldo, Catalyst, Cayley, CB, Celinder, Certain, Chafin, Champ, Chandler, Charvel Jackson, Chatting Bird, Chellee, Chennell, Cheval, Chilcott, Chillbass, China Feeling, Chiselhead, Chris Mitchell, Christian, Christof Kost, Christophe Leduc, Citron, Classic Bassworks, Claudio Nunez, Clement (Tom), Clevinger, Clover, CodB, Coen, Collier, Condor, Conklin, Convolution Instruments, Copley, Coral, Cort, Coura, Crafter, Crimson, Crook, Crossley, Crow Hill, Crucianelli, Cruzer, Cuntz, Curbow, Cyan, Cyr, D Huff, D-Alegria, D-Ambrosio, D-Angelico, D-Mark, Daguet, Daisy Rock, Dame, Damico, Dammann, Dan Armstrong, Danelectro, Danou, Dasch, David King, DB, DBZ, De Armond - Ashbory, Dean, Defraia, DeGennaro, DeGier, Deimel, DeLacugo, Delaney, Delgado, DeMars, Denis-F, Denyle, DeOliveira, Devon, DeweyDecibel, Dexter, Diego Pons, Dillion, Dingwall, DiPinto, DNG, Dolan, Dolmen, Dommenget, Dont Fret, Dot On Shaft, Douglas, DP Custom, Drake, Dreizehn, Drew and Sebastian, Drive, DS, Dubreuille, Duesenberg, Duo, Duvoisin, Eagle, Earthwood, EAS, Eastone, Eastwood, Eccleshall, Ectomorph, Ed Roman, Edin, Edwards, Egholm, EJ Lynch, Eko, ElDegas, Electra, Electrical Guitar Co, Elias, Eliezer Lara, Ellio Martina, Elrick, Emerald, Eminence, Encore, Enfield, Enke, Epiphone, Equilibrium, ERG, Eric Christman, Erizias, Erkan Sizarlar, ES, ESH, ESP, Ethos, Eugen, Exlusive, Eyb, F Bass, Faber, Fame, Fano, Fast Guitars, FBB, Fclef, Fender, Fenton Weill, Fernandes, Fernandez, FGN, FGW, Fibenare, Fichter, First Act, Fishbone, FJordan, Fleabass, Fleishman, FMW Guitars, Fodera, Fokus, Forshage, Framus, Frankinstein, Fret-King, Fritz Bros, Frudua, Fullerton, Fuquay, Furch, Fury, Fusco, G Spot Basses, G&L, G-Spot, Gallinaro, Galveston, Garbujo, Garcia, Garz, Gaskell, GB, Gecko, Ged Green, Germania-Pro, Germano M, GH Reno, Giannini, Gibson, Giffin, Gilmour, Girl Brand, Glasstone, GMR, Godfrey, Godin, Godlyke, Gold Tone, Goldfish, Gottschall, Gougi, Goya, Goya (Chile), GR, Graham Parker, GranRey, Greco, Greg Back, Greg Bennett, Grendel, Gretsch, Groat, Groove Baby, Grosh, Grosmann, Guerilla, Guild, Guitar Doctor, Guitar Fetish, Gus, Guttlin, Guvnor, GW, H-Guitars, Hagstrom, Hahn, Hallmark, Halo, Hamburguitar, Hamer, Handy Pepper, Hanewinckel, Harden, Harmony, Harry, Hartke, Haussel, Haywire, Haze, Heins, Hembrook, Hembry, Henman, Henneken, Hilton, History, HJC, Hofner, Hohner, Holcomb, Hondo, Hora, HOS, Hotwire, Hoyer, Hoyt, Huet, Huiras, Human Base, Ibanez, Iglesias, Industrial Radio, Infinite Metal Werkz, Inspire, Italia, J & D Bros, Jacaranda, Jackson, Jacoland, JAF, James Trussart, JanAid, Jarrell, JaSeSoi, Jaxville, Jay Turser, Jaydee, Jazzette, JC, JC Hamilton, Jean & Jean, Jedson, Jeffrey Yong, Jerry Jones, Jersey Girl, Jerzy Drozd, Jiraud, Joes, Johnk, Johnson, Johnson (Bruce), Jon Hill, Jordan, Jozsi Lak, JP Guitars, Jurkovic, JWorrell, K Bass, Kala, Kalamazoo, Kamil Greben, Kania, Kawai, Kawasamy, Kay, KD, Kellergitarren, Ken Bebensee, Ken Smith, Kenneth Lawrence, KGB, Kif, Killer, Kinal, Klein, Klingenberg, Klira, Knaggs, Knooren, Knuckle, Koll, Kolstein, Kona, Konne, Koontz and Thurston, Kopo, Kot, KR, Kraken, Kramer, Krappy, Kraushaar, Kristall, Kritz, KSM, KuanChi7, Kubicki, Kustom, Kydd, Kytary, L.Kah, Lace, Lado, Laguna, Lakland, Landing, Langcaster, Lanzi, Larkin, Laurus, Leader, LeCompte, LedBelli, Ledur, LeFay, Legra, Lehtela, LeMaitre, Lemur, Lero, Letain Guitars, Levi, Lieber, LightWave, Lindemere, Linden, Listerud, Little, Lodestone, Loic Le Pape, Lootnick, Lospennato, Lotus, Loud, LowEnd, Lowenherz, LuK, Luna, Lutarius, Lutherie Quatre-Temps, Luthman, Lyle, M Laghus, Mada, Madarozzo, Magnus, Mailloux, Maingard, Maize, Mallia, Mann, Manne, Manson, Marceau, Marchlewski, Marco (Brazil), Marco (Espanol), Marco (Switzerland), Marcus, Mari, Marinho, Marleaux, Martin, Martin Keith, Maruszczyk, Maton, Matsumoku, Mattisson, Mattschoss, May, Mayones, MBass, McCarten, McIntyre, McSwain, MD, Memphis, Mensinger, Meridian, Merlos, Mesko, Mezzaluna, MF, Michael Kelly, Michael Tuttle, Mike Guttera, Mike Lull, Mike-Sabre, Mikey, Miller, Minarik, Ministar, Mirabella, ML, MLP, Modulus, Moollon, Moon, Moon (Scotland), Moonshine, Moonstone, Morch, Morgan, Morgan Monroe, Moscato, Moses, Mosrite, Mozina, MTD Michael Tobias D, MUBass, Mudd, Mulder, Music Man, Musicvox, Mutt, Myne, N Zaganin, Nada, Nado, Nardelli, Nash Guitars, Nature-Shock, Neal Moser, Nedd, Neo, Neubauer, Neuser, New York Bass Works, Nexus, Nils Valentin, Noguera, Nordstrand, Normandy, Norton, Novax, NS, O3, Obstructures, October, Odyssey, Odyssey (Canada), Old Moon, OLP, Opatik, Ormsby, Orville by Gibson, Oscar Schmidt, Otentic, Ovation, Overture, Overwater, Ozark, Pablo Massa, Pagelli, Palatino, Palm, Parker, Patrick Eggle, Paul Lairat, Paul Reed Smith, Paulo Gomes, Pavel, Peavey, Pederson, Pedulla, Peerless, Pensa, Peter Malinoski, Peterbuilt Bass Guitars, Petillo, Petrounov, Phantom Guitarworks, Pheo Guitars, Photogenic, Pierre Martines, Pluma, PorchBoard, PP, Prat, Premier, Premier Builders Guild, Prestige, Prometeus, Pulcinella, QBasses, Querey, R Low Vaughn, Rahbek, Raines, Rally, Ramirez, Ramos, Rash, Ray Ramirez, RBC, Realistic, Rebec, Rebon, Redeemer, Reede, Rees, Regenerate, Reitz, Remus, Renaissance, Reverend, RG Custom Basses, Rhyne, Ribbecke, Rice, Rick Toone, Rick Turner, Rickenbacker, Rikkers, RIM, Ristola, Ritter (Jens), Rizzolo, RKS, Road Toad, Roadrunner, Rob Allen, Rob Wave, Rob Williams, Rockquipment, Rocksmith, Roger Morillo, Roscoe, Roy, Ruach, Rumblebird, Ruokangas, Rust, RW, Rybski, S Walker, S101, Sabrafen, Sadowsky, Sage, Sakakibara, Saldaneri, Salvador Giardina, Samick, Sandberg, Schack, Schecter, Schloff, Schwalbe, Schwarz, Scott Ambush, Scott French, SD Curlee, Seibass, Senn, SGD, Shamray, Shergold, Sherman, Shimo, Shine, Shuker, Sign, Silver Star, Silvertone, Simnett, Simon, Simon Lee, Simple Bass, SJ, Skillet, Skjold, Smokebox, Soller, SoloEtte, Sovereign, Sozo, Spalt, Spear, Spector, Squier, Staalsen, Stadium, Stagg, Stambaugh, Stanzani, Starr, Status Graphite, Steed, Steffsen, Steinberger, Stephen, Steve Carr, Stevens, STHAC, Stijl Vorm, STR, Stradi, Stratmann, Street, Strinberg, String King, Strobel, Stroh, Sugi, Suhr, Sukop, Surine, Svet, SWD, Swing, SX, Syme, Tacoma, Tagg, Tagima, Takamine, Tanglewood, Taylor, TC Ellis, Teisco, Teye, TGCS, Thomas, Tiguez, Timtone, Tino Tedesco, TK, Togar, Tokai, Tom Stenback, Tonfuchs, Tonika, Tonnard, Top Dog, Traben, Tradition, Traveler, Travis Bean, Trev Wilkinson, TS Customs, Tune (Maniac), Tune Guitar Technology, Tuscany, U.S. Masters, Unicornbass, UNK, Utopia, Utrera, Vaccaro, Vadim, Valenti, ValleyArts, VanderEnd, Vantage, VanZandt, Vector, Vegas, Veillette, Venture, Verdi, Versoul, Victor, Vigier, Vincent, Vinciguerra, Vinny Colletti, Vintage, Vivian, Vogel, Volbrecht, Vopche, Vox, Vox Humana, Wahlbrink, Waja, Wal, Walczak, Walk On Water, Walkingbass, Warmoth, Warr, Warrior, Warwick, Wase, Washburn, Waterstone, Watkins, Watson, Wechter, Weeping Willow, Weirich, Weisse Hügel, Wendler, Wes Lambe, Westone, Wez Venables, Whamola, Wilkat, Wilkins, William Jeffrey Jones, Willows, Willy Franklin, Wishbass, Witkowski, Wood, Wood and Tronics, Woodo, Wreck, WSL, Wurlitzer, Wyn, Xotic, XXL, XXX Triple Cross, Xylem, Y-Man, Yair, Yamaha, Yamato, Yancey, Zachary, Zakrzewski, Zandbergen, Zebaoth, Zemaitis, Zeta, Zimnicki, Zodiac, Zon, Zoot, Zopilote, Zwier, ZZ Ryder
Totals Brands 938
rocking the fedora
