Here's a list of all the teams that ever played in the National Basketball League which, along with the Basketball Assn. of America, merged to eventually become the NBA.
Note: an * after the year denote the team is still playing in the NBA
* Akron Firestone Non-Skids (1937–41)
* Akron Goodyear Wingfoots (1937–42)
* Anderson Duffey Packers (1946–49)
* Buffalo Bisons (1937–38)*
* Chicago Bruins (1939–42)
* Chicago Studebaker Flyers (1942–43)
* Chicago American Gears (1944–47)
* Cincinnati Comellos (1937–38)
* Cleveland Chase Brassmen (1943–44)
* Cleveland Allmen Transfers (1944–46)
* Columbus Athletic Supply (1938–39)
* Dayton Metropolitans (1937–38)
* Denver Nuggets (1948–49)
* Detroit Eagles (1939–41)
* Detroit Gems (1946–47)*
* Detroit Vagabond Kings/Dayton Rens (1948–49)
* Flint Dow A.C.'s/Midland Dow A.C.'s (1947–48)
* Fort Wayne General Electrics (1937–38)
* Fort Wayne Zollner Pistons (1941–48)*
* Hammond Ciesar All-Americans (1938–41)
* Hammond Calumet Buccaneers (1948–49)
* Indianapolis Kautskys (1937–48)
* Kankakee Gallagher Trojans (1937–38)
* Minneapolis Lakers (1947–48)*
* Oshkosh All-Stars (1937–49)
* Pittsburgh Pirates (1937–39)
* Pittsburgh Raiders (1944–45)
* Richmond King Clothiers became Cincinnati Comellos (1937–38)
* Rochester Royals (1945–48)*
* Sheboygan Red Skins (1938–49)
* Syracuse Nationals (1946–49)*
* Toledo Jim White Chevrolets (1941–43)
* Toledo Jeeps (1946–48)
* Tri-Cities Blackhawks (1946–49)*
* Warren Penns (1937–38)
* Warren Penns/Cleveland White Horses (1938–39)
* Waterloo Hawks (1948–49)
* Whiting Ciesar All-Americans (1937–38)
* Youngstown Bears (1945–47)
Here's the BAA teams: (different indication of teams still playing in the NBA)
Baltimore Bullets [a] Baltimore, Maryland 1947–49
Boston Celtics Boston, Massachusetts 1946–49
Chicago Stags Chicago, Illinois 1946–49
Cleveland Rebels Cleveland, Ohio 1946–47
Detroit Falcons Detroit, Michigan 1946–47
Fort Wayne Pistons Fort Wayne, Indiana 1948–49
Indianapolis Jets Indianapolis, Indiana 1948–49
Minneapolis Lakers [c] Minneapolis, Minnesota 1948–49
New York Knickerbockers New York, NY 1946–49
Philadelphia Warriors [d] Philadelphia, Pennsylvania 1946–49
Pittsburgh Ironmen Pittsburgh, Pennsylvania 1946–47
Providence Steamrollers Providence, Rhode Island 1946–49
Rochester Royals [e] Rochester, New York 1948–49
St. Louis Bombers St. Louis, Missouri 1946–49
Toronto Huskies Toronto, Ontario 1946–47
Washington Capitols Washington, D.C. 1946–49
* a Not affiliated with the present-day Washington Wizards, which were known as the Baltimore Bullets from 1963 to 1973
* b Currently known as the Detroit Pistons
* c Currently known as the Los Angeles Lakers
* d Currently known as the Golden State Warriors
* e Currently known as the Sacramento Kings
Gee, I wonder what ever happened to the Anderson Duffey Packers? What's a "Duffey" anyway - and how do you pack it? 😀