INTERNATIONAL LEAGUE
Minor League TeamAffiliationExpiration
Buffalo BisonsBlue Jays2020
Charlotte KnightsWhite Sox2020
Columbus ClippersIndians2020
Durham Bulls Rays2020
Gwinnett BravesBraves*N/A
Indianapolis IndiansPirates2020
Lehigh Valley IronPigsPhillies2020
Louisville BatsReds2020
Norfolk Tides Orioles2020
Pawtucket Red SoxRed Sox2020
Rochester Red WingsTwins2020
Scranton/W-B RailRidersYankees2018
Syracuse ChiefsNationals MetsN/A
Toledo Mud HensTigers2020
PACIFIC COAST LEAGUE
Minor League TeamAffiliationExpiration
Albuquerque IsotopesRockies2020
San Antonio MissionsBrewers
2020
El Paso ChihuahuasPadres2020
Fresno GrizzliesAstros Nationals2020
Iowa CubsCubs2020
Las Vegas 51sMets Athletics2020
Memphis RedbirdsCardinals*N/A
Nashville SoundsAthletics Rangers2022
New Orleans Baby CakesMarlins2020
Oklahoma City DodgersDodgers
2020
Omaha Storm ChasersRoyals2020
Reno AcesDiamondbacks2020
Round Rock ExpressRangers  Astros2022
Sacramento River CatsGiants2020
Salt Lake BeesAngels2022
Tacoma RainiersMariners2022
EASTERN LEAGUE
Minor League TeamAffiliationExpiration
Akron RubberDucksIndians2020
Altoona CurvePirates2022
Binghamton Rumble PoniesMets2020
Bowie BaysoxOrioles2020
Erie SeaWolvesTigers2020
Harrisburg SenatorsNationals2020
Hartford Yard Goats Rockies2020
New Hampshire Fisher CatsBlue Jays2020
Portland Sea DogsRed Sox2020
Reading Fightin PhilsPhillies*N/A
Richmond Flying Squirrels Giants2020
Trenton ThunderYankees2022
SOUTHERN LEAGUE
Minor League TeamAffiliationExpiration
Birmingham BaronsWhite Sox2020
Chattanooga Lookouts Twins
2018
Biloxi ShuckersBrewers2020
Jackson GeneralsDiamondbacks2020
Jacksonville Jumbo ShrimpMarlins2020
Mississippi BravesBraves*N/A
Mobile BayBearsAngels2022
Montgomery BiscuitsRays2020
Pensacola Blue WahoosReds2018
Tennessee SmokiesCubs2018
TEXAS LEAGUE
Minor League TeamAffiliationExpiration
Arkansas TravelersMariners2020
Corpus Christi HooksAstros*N/A
Frisco RoughRidersRangers2020
Midland RockHoundsAthletics2018
Northwest Arkansas NaturalsRoyals2020
Amarillo Baseball ClubNone???
Springfield CardinalsCardinals*N/A
Tulsa DrillersDodgers2020
CALIFORNIA LEAGUE
Minor League TeamAffiliationExpiration
Inland Empire 66ersAngels2022
Lake Elsinore StormPadres2018
Lancaster JetHawksRockies2020
Modesto NutsMariners*N/A
Rancho Cucamonga QuakesDodgers2020
San Jose GiantsGiants*N/A
Stockton PortsAthletics2020
Visalia RawhideDiamondbacks2020
CAROLINA LEAGUE
Minor League TeamAffiliationExpiration
Buies Creek AstrosAstros2018*
Carolina MudcatsBrewers
N/A*
Down East Wood DucksRangersN/A*
Frederick KeysOrioles2020
Lynchburg HillcatsIndians2020
Myrtle Beach PelicansCubs2020
Potomac NationalsNationals2020
Salem Red SoxRed Sox*N/A
Wilmington Blue RocksRoyals2020
Winston-Salem DashWhite Sox*N/A
FLORIDA STATE LEAGUE
Minor League TeamAffiliationExpiration
Bradenton MaraudersPirates*N/A
Charlotte Stone CrabsRays2018
Clearwater ThreshersPhillies*N/A
Daytona TortugasReds2020
Dunedin Blue JaysBlue Jays*N/A
Florida Fire FrogsBraves2020
Fort Myers MiracleTwins2022
Jupiter HammerheadsMarlins*N/A
Lakeland Flying TigersTigers*N/A
Palm Beach CardinalsCardinals*N/A
St. Lucie MetsMets*N/A
Tampa YankeesYankees*N/A
MIDWEST LEAGUE
Minor League TeamAffiliationExpiration
Beloit SnappersAthletics2018
Bowling Green Hot RodsRays2020
Burlington BeesAngels2020
Cedar Rapids KernelsTwins2020
Clinton LumberKingsMariners Marlins2020
Dayton DragonsRedsN/A*
Fort Wayne TincapsPadres2020
Great Lakes LoonsDodgers2020
Kane County CougarsDiamondbacks2018
Lake County CaptainsIndians2020
Lansing LugnutsBlue Jays2020
Peoria ChiefsCardinals2020
Quad Cities River BanditsAstros2020
South Bend CubsCubs2020
West Michigan WhitecapsTigers2022
Wisconsin Timber RattlersBrewers2022
SOUTH ATLANTIC LEAGUE
Minor League TeamAffiliationExpiration
Asheville TouristsRockies2020
Augusta GreenJacketsGiants2020
Charleston RiverdogsYankees2020
Delmarva ShorebirdsOrioles2020
Greensboro GrasshoppersMarlins Pirates2020
Greenville DriveRed Sox2020
Hagerstown SunsNationals2020
Hickory Crawdads Rangers*N/A
Kannapolis IntimidatorsWhite Sox2018
Lakewood BlueClawsPhillies2020
Lexington LegendsRoyals2018
Rome BravesBraves*N/A
Columbia FirefliesMets2020
West Virginia PowerPirates Mariners2020
NEW YORK-PENN LEAGUE
Minor League TeamAffiliationExpiration
Aberdeen IronBirdsOrioles2020
Auburn DoubledaysNationals2020
Batavia MuckdogsMarlins2018
Brooklyn CyclonesMets*N/A
Connecticut TigersTigers2020
Hudson Valley RenegadesRays2020
West Virginia Black BearsPirates2020
Lowell SpinnersRed Sox2020
Mahoning Valley ScrappersIndians2020
State College SpikesCardinals2020
^ Staten Island YankeesYankeesN/A
Tri-City ValleyCatsAstros2020
Vermont Lake MonstersAthletics2020
Williamsport CrossCuttersPhillies2020
^ required to affiliate with Yankees
NORTHWEST LEAGUE
Minor League TeamAffiliationExpiration
Boise HawksRockies2020
Eugene EmeraldsCubs2022
Everett AquaSoxMariners2022
Hillsboro Hops Diamondbacks2020
Salem-Keizer VolcanoesGiants2018
Spokane Indians Rangers2018
Tri-City Dust DevilsPadres2018
Vancouver CanadiansBlue Jays2022
APPALACHIAN LEAGUE
Minor League TeamAffiliationExpiration
Bluefield Blue JaysBlue Jays*N/A
Bristol PiratesPirates*N/A
Burlington RoyalsRoyals*N/A
Danville BravesBraves*N/A
Elizabethton TwinsTwins*N/A
Greeneville RedsReds*N/A
Johnson City CardinalsCardinals*N/A
Kingsport MetsMets*N/A
Princeton RaysRays*N/A
Pulaski YankeesYankees*N/A
PIONEER LEAGUE
Minor League TeamAffiliationExpiration
Billings MustangsReds2020
Grand Junction RockiesRockiesN/A*
Great Falls VoyagersWhite Sox2018
Colorado Springs SkySoxBrewers2018
Idaho Falls ChukarsRoyals2018
Missoula OspreyDiamondbacks2020
Ogden RaptorsDodgers2018
Orem Owlz Angels2020
* Teams owned by their major league affiliate are designated with an asterisk