This is a list of the franchises in the following leagues as of 2015 in this timeline.
Major League Baseball
American League
- Baltimore Orioles
- Boston Red Sox
- Chicago White Sox
- Cleveland Indians
- Detroit Tigers
- Houston Astros
- Kansas City Royals
- Los Angeles Angels of Anaheim
- Milwaukee Brewers
- Minnesota Twins
- New York Yankees
- Oakland Athletics
- Seattle Mariners
- Tampa Bay Rays
- Texas Rangers
- Toronto Blue Jays
National League
- Arizona Diamondbacks
- Atlanta Braves
- Chicago Cubs
- Cincinnati Reds
- Colorado Rockies
- Los Angeles Dodgers
- Miami Marlins
- Montreal Expos
- New York Mets
- Philadelphia Phillies
- Pittsburgh Pirates
- San Diego Padres
- San Francisco Giants
- St. Louis Cardinals
- Vancouver Knights
National Football League
American Football Conference
- Baltimore Ravens
- Buffalo Bills
- Cincinnati Bengals
- Cleveland Browns
- Denver Broncos
- Houston Oilers
- Indianapolis Colts
- Kansas City Chiefs
- Miami Dolphins
- New England Patriots
- New York Jets
- Oakland Raiders
- Pittsburgh Steelers
- San Diego Chargers
- St. Louis Stallions
- Tennessee Titans
National Football Conference
- Arizona Cardinals
- Atlanta Falcons
- Chicago Bears
- Dallas Cowboys
- Detroit Lions
- Green Bay Packers
- Los Angeles Rams
- Minnesota Vikings
- New Orleans Saints
- New York Giants
- Philadelphia Eagles
- San Antonio Texans
- San Francisco 49ers
- Seattle Seahawks
- Tampa Bay Buccaneers
- Washington Redskins
National Hockey League
Clarence Campbell Conference
- Calgary Flames
- Chicago Blackhawks
- Colorado Avalanche
- Edmonton Oilers
- Houston Aeros
- Kansas City Scouts
- Los Angeles Kings
- Milwaukee Admirals
- Minnesota North Stars
- Salt Lake Summit
- San Francisco Sharks
- Saskatoon Blues
- Seattle Metropolitans
- St. Louis Otters
- Vancouver Canucks
- Winnipeg Jets
Prince of Wales Conference
- Atlanta Thrashers
- Boston Bruins
- Buffalo Sabres
- Detroit Red Wings
- Hamilton Bulldogs
- Hartford Whalers
- Montreal Canadiens
- New York Islanders
- New York Rangers
- Ottawa Senators
- Philadelphia Flyers
- Pittsburgh Penguins
- Quebec Nordiques
- Tampa Bay Lightning
- Toronto Maple Leafs
- Washington Capitals
National Basketball Association
Eastern Conference (National Basketball Association)
- Atlanta Hawks
- Boston Celtics
- Charlotte Bobcats
- Chicago Bulls
- Cleveland Cavaliers
- Detroit Pistons
- Indiana Pacers
- Miami Heat
- Montreal Jazz
- Nashville Kings
- New York Knicks
- Philadelphia 76ers
- Pittsburgh Hammers
- Tampa Bay Speed
- Toronto Raptors
- Washington Wizards
Western Conference (National Basketball Association)
- Dallas Mavericks
- Denver Nuggets
- Golden State Warriors
- Houston Rockets
- Kansas City Komets
- Los Angeles Lakers
- Milwaukee Bucks
- Minnesota Timberwolves
- New Orleans Hornets
- Phoenix Suns
- Sacramento Falcons
- San Antonio Spurs
- San Diego Clippers
- Seattle SuperSonics
- St. Louis Spirits
- Vancouver Grizzlies
Canadian Football League
East Division
- Hamilton Tiger-Cats
- Montreal Alouettes
- Ottawa Rough Riders
- Quebec Chevaliers
- Toronto Argonauts
West Division
- BC Lions
- Calgary Stampeders
- Edmonton Eskimos
- Saskatchewan Roughriders
- Winnipeg Blue Bombers
Major League Soccer
Eastern Conference (Major League Soccer)
- Atlanta Silverbacks
- Chicago Fire
- Columbus Crew SC
- Detroit Muscle
- D.C. United
- Miami Fusion
- Montreal Impact
- New England Revolution
- New York Cosmos
- New York Red Bulls
- Orlando City SC
- Philadelphia Union
- Tampa Bay Mutiny
- Toronto FC
Western Conference (Major League Soccer)
- Colorado Rapids
- FC Edmonton
- FC Dallas
- Houston Dynamo
- Los Angeles Galaxy
- Minneapolis FC
- Portland Timbers
- Real Salt Lake
- San Diego Gulls SC
- San Jose Earthquakes
- Saskatchewan United
- Seattle Sounders FC
- Sporting Kansas City
- Vancouver Whitecaps FC