| code | contr | contact | location |
| JBGY | Johnny Begay | Johnny Begay | Gallup, NM |
| JBL | Jerry Belles | Jerry Belles | ?, TN |
| JBNN | J. Clare Brennan | John Brennan | Waterford, MI |
| JBRD | J Bar D Bucking Bulls | Gerald Vanlandingham | Norfork, AR |
| JBRJ | J Bar J / Eiker Cattle | Sparky Dreesen | Circle, MT |
| JBRS | J Bar S Bucking Bull Co. | Terry Johnson - Trae Shelton | Carrolton, GA |
| JBRW | J Bar W Ranch | Sonny Williams | Union Bridge, MD |
| JCB | JCB Buck 'N Bulls | Jerry & Carol Brian | Tatum, TX |
| JCC | Jeffcoat Cattle Company | Gary Jeffcoat | Tolar, TX |
| JCDT | JC's Dream Team BB | Jayci Mead | Thermopolis, WY |
| JCHS | James Chase Bucking Bulls | James Chase | Cleveland, TN |
| JCK | JC Kitaif Pro Rodeo | J.C. Kitaif | Tylertown, MS |
| JCKP | J.C. Knapp Rodeo | J.C. Knapp | Mansfield, TX |
| JCRD | JC Rodeio | Julinho | Osvaldo Cruz, SP |
| JCWL | Double Bar J Cattle Co. | Justin Cornwell | Lima, OH |
| JD | Davis Rodeo Ranch | Jerome Davis | Archdale, NC |
| JDB | Jason Diedrich | Jason Diedrich | Stephenville, TX |
| JDBR | JD Bar Cattle Co | James Davis | Katy, TX |
| JDGO | Cia Juliano Domingo | Juliano Domingo | Luziania, GO |
| JDVB | Verbois Bucking Bulls | Jack & Dot Verbois | Tylertown, MS |
| JDX | JD Nix Rodeo Co. | JD Nix | Kerrville, TX |
| JEDO | João Eduardo | João Eduardo | Sebastianópolis do Sul, SP |
| JFBB | Foley Bucking Bulls | James Foley | Lloydminster, AB |
| JFK | Just for Kicks | Dale Tiemann | Industry, TX |
| JH | Johnny Hoyle | Johnny Hoyle | ?, ? |
| JHIL | Justin Hillery | Justin Hillery | Prescott, AR |
| JHJK | JK Bucking Bulls | Josh Hupp | Cheyenne, WY |
| JHL | Jesse Hill | ? | Franktown, CO |
| JHP | Jerry Hoepfl | Jerry Hoepfl | Lafe, AR |
| JHWK | Joy Hawks | Joy Hawks | Stephenville, TX |
| JJ | Double J Rodeo Co. | Jerome Robinson | Fort Collins, CO |
| JJJB | Triple J Bucking Bulls | ? | Washoe Valley, NV |
| JJNK | Blessed Bucking Bulls | Jerrod Jenkins | Bonifay, FL |
| JK | JK Rodeo Co. | Jim Kenney | Carlsbad, NM |
| JKB | JK Bucking Bulls | Justin Kirkman | Maben, MS |
| JKBR | JK Bull Riding Productions | Jeremy Creswell | Texico, NM |
| JKBS | J & K Bucking Stock | James & Kerry Porter | Hartshorne, OK |
| JKEL | JK Elite Bucking Bulls | Jeff Berryhill | Paris, TN |
| JKR | Ratjen Rodeo Ranch | Jackie Ratjen | Mansfield, TX |
| JKS | John & Karen Sirridge | John & Karen Sirridge | Platte City, MO |
| JLBB | JL Bucking Bulls | John Johnson | Farmington, NM |
| JLFW | Leffew Bucking Bulls | Leffew | Nipomo, CA |
| JLK | Johnny Locke | Johnny Locke | Nocona, TX |
| JLRH | J&L Ranch - Hogue | James Hogue | Lone Oak, TX |
| JMC | John McDonald | John McDonald | Miltonvale, KS |
| JMDC | Jimmy Morris / Doug Carpenter | Jimmy Morris / Doug Carpenter | ?, ? |
| JMNO | Julio Moreno | Julio Moreno | Oakdale, CA |
| JMNR | Minor Bucking Bulls | Jeremy Minor | Rogers, OH |
| JNKB | Junk Bull Co | Jodie Wright | Stillwater, OK |
| JNSN | Johnson Cattle Co. | Danny Johnson | Midway, TX |
| JOW | Jim Owens Bucking Bulls | Jim Owens | Antlers, OK |
| JP | John Pinkerton | John Pinkerton | Worden, MT |
| JPCK | John Peck | John Peck | Ashland, OH |
| JPHL | Phillips Bucking Bulls | JR Phillips | Magnolia, AR |
| JPLO | João Paulo | João Paulo | Morro Agudo, SP |
| JPSC | Pastorelli / Colatruglio | Juliano Pastorelli / Sigmar Colatruglio | São José do Rio Preto , SP |
| JPT | Broken Slash P Bucking Bulls | Jesse Pettigrew | Casa Grande, AZ |
| JQH | JQH Bucking Bulls | Skip Jones | Amarillo, TX |
| JRB | Jeff Robinson | Jeff Robinson | Mars Hill, NC |
| JRG | Jones Rodeo Genetics | Alvin Jones | Winona, TX |
| JRGO | JARS Bucking Bulls / Gene Owen | Gene Owen / Jimmy Roth | Big Cabin, OK |
| JS | Joe Simon Rodeo Co. | Joe Simon | Webster, MN |
| JSC | Jerome & Sandie Scallions | Jerome Scallions | Itasca, TX |
| JSR | JS Rodeo LLC | John Smith / Patrick Johnson | Vaughn, MT |
| JTBB | JT Bucking Bulls | Jeff Tilley | Senatobia, MS |
| JUM | Juma Rodeo Stock | Byron Juma | Torrington, WY |
| JVM | Jim VanMeter | Jim Vanmeter | ?, ? |
| JYN | Exclusive Genetics | Billy Jaynes | Orchard, TX |
| K2 | K2 Rodeo Bulls | Doug Groves | Alder Flats, AB |
| K3LK | K-3 Bucking Bulls - Koerth | Lloyd Koerth | Whitsett, TX |
| KARM | Kelly Armstrong | Kelly Armstrong | Big Valley, AB |
| KBC | Kelly Bowcutt | Kelly Bowcutt | ?, ? |
| KBRC | K-C Bucking Bulls | Kenny McElroy | Mount Orab, OH |
| KBRJ | K Bar J Bucking Bulls | Kenny Hague | Hamilton, TX |
| KBTM | Kick Back Buckers | Teran Mapes | Aztec, NM |
| KCB | KC Bucking Bulls | Casey Willis | Gainesville, TX |
| KCCC | KC Cattle Co. - McBride | Dickie McBride | DeRidder, LA |
| KCKK | Kash Cattle Co. - NE | | Imperial, NE |
| KCKP | Kash Cattle Co - CA | Katie Parker | Nipomo, CA |
| KCKR | Super Kicker Rodeo | ? | Paris, MI |
| KCLG | K Bar C - Garrett | Leonard Buddy Garrett | Midland, TX |
| KCOX | Cox Bucking Bulls | Kent Cox | Stephenville, TX |
| KCR | Kevin Crane | Kevin Crane | , IL? |
| KCRM | Cormier Cattle Co. | Kent Cormier | Alexander, AR |
| KCS | Simpson Cattle Company | Kaycee Simpson | Kamas, UT |
| KDOC | Kodoc Bucking Bulls | David McClellan - Kody Neuman | Liberty, TX |
| KE | Kris England | Kris England | ?, AR |
| KESL | Kesler Rodeo | Greg & Duane Kesler | Helena, MT |
| KEYR | Key Ranch | McCabe | Page, AZ |
| KFBB | Kevin Foreman Bucking Bulls | Kevin Foreman | Copan, OK |
| KGCC | Kanngiesser Cattle Co. | Mark & Cooper Kanngiesser | Zenda, KS |
| KGMN | King and Minchin Bucking Stock | King & Minchin | Vaas, NC |
| KH | Hampton Pro Rodeo | Kevin Hampton | Springdale, AR |
| KINK | Kinky Buckers | Kyle Larson | ?, AB |
| KK | K & K Ranch | Kevin Loudamy | Brownsboro, TX |
| KKDB | KKD Bucking Bulls | Kaylee Densmore | Weatherford, TX |
| KKTM | Kill 'em Kwik Cattle CO | Toby Martin | Comanche, OK |
| KLIN | Klein Bros. Pro Rodeo LLC | Errol Klein | Clinton, LA |
| KLNB | Kleinhans Brothers Bucking Bulls | Kleinhans | Montague, TX |
| KLSF | Shield of Faith Cattle | Kody Lostroh | LaSalle, CO |
