Teams Listed Alphabetically
 

• Unnamed - Unannounced - Arena Football League - Proposed - 2024

• Unnamed - Denver - Champions Indoor Football - Proposed - 2022

• Unnamed - Unannounced - Western Association of Professional Baseball Clubs - Proposed - 2019

• Aurora Cavalry - Aurora - International Basketball League - Defunct - 2006

• Aurora Outlaws - Aurora - International Basketball League - Proposed - 2006

• Boulder County United - Boulder - United Soccer League W League - Proposed - 2024

• Boulder United FC - Littleton - Major League Indoor Soccer - Active - 2025-26 to present

• Caribous of Colorado - Denver - North American Soccer League - Defunct - 1978

• Colorado 14ers - Broomfield - NBA Development League - Defunct - 2006-07 to 2008-09

• Colorado Alpenglow - Thornton - Western Ultimate League - Active - 2023 to present

• Colorado Apex (was Summit) - Golden

  • • American Ultimate Disc League - Inactive - 2022 to 2023

    • Ultimate Disc League - Active - 2024 to present

• Colorado Avalanche - Denver - National Hockey League - Active - 1995-96 to present

• Colorado Blizzard - Denver - Major Arena Soccer League 2 - Defunct - 2018

• Colorado Bucks SC - Littleton - Major League Indoor Soccer - Defunct - 2023-24 to 2024-25

• Colorado Candoos - Colorado Springs - National Indoor Football League - Proposed - 2007

• Colorado Castle Rocks - Castle Rock - National Indoor Football League - Proposed - 2007

• Colorado Chill - Loveland - National Women's Basketball League - Defunct - 2004 to 2006

• Colorado Cougars - Loveland - American Basketball Association - Defunct - 2011-12 to 2012-13, 2015-16

• Colorado Crossover - Lakewood - International Basketball League - Defunct - 2006 to 2007

• Colorado Crush - Denver - Arena Football League - Defunct - 2003 to 2008

• Colorado Crush - Loveland - Indoor Football League - Defunct - 2016 to 2017

• Colorado Eagles - Loveland - Active - 2003-04 to present

  • • Central Hockey League - Inactive - 2003-04 to 2010-11

    • ECHL - Inactive - 2011-12 to 2017-18

    • American Hockey League - Active - 2018-19 to present

• Colorado Flames - Denver - Central Hockey League - Defunct - 1982-83 to 1983-84

• Colorado Foxes - Commerce City - American Professional Soccer League - Defunct - 1990 to 1997

• Colorado Freeze - Denver - Independent Woman's Football League - Defunct - 2015 to 2018

• Colorado Grit - Greeley - North American Hockey League - Active - 2023-24 to present

• Colorado Gold Kings - Colorado Springs - West Coast Hockey League - Defunct - 1998-99 to 2001-02

• Colorado Grey Wolves - Windsor - American Basketball Association - Proposed - 2017

• Colorado Hoopers - Broomfield - Evolution Basketball Association - Inactive - 2021

• Colorado Ice - Loveland - Indoor Football League - Defunct - 2009 to 2015

• Colorado Ice - Loveland - United Indoor Football - Defunct - 2007 to 2008

• Colorado Inferno - Colorado Springs - Major Arena Soccer League 2 - Defunct - 2017 to 2023

• Colorado International Soccer Academy - Parker - United Soccer League W League - Proposed - 2024

• Colorado Journey - Fort Collins - Proposed - 2022

  • • American Basketball Association - Proposed - 2022

    • Triple Threat Basketball League - Proposed - 2022

• Colorado Kings - Denver - American Basketball Association - Defunct - 2010-11 to 2017-18

• Colorado Kraken - Denver - National Volleyball Association - Defunct - 2022

• Colorado Lightning - Loveland - Professional Arena Soccer League - Defunct - 2008-09

• Colorado Lightning - Monument - American Professional Football League - Defunct - 2012

• Colorado Mammoth - Denver - National Lacrosse League - Active - 2003 to present

• Colorado Predators - Parker - Professional Arena Soccer League - Defunct - 2007 to 2008

• Colorado Rangers - Denver - International Hockey League - Defunct - 1987-88

• Colorado Rapids - Commerce City - Major League Soccer - Active - 1996 to present

• Colorado Raptors - Glendale - Major League Rugby - Defunct - 2020

• Colorado Rise - Denver - American Basketball Association - Proposed - 2023

• Colorado Rockies - Denver - Major League Baseball - Active - 1993 to present

• Colorado Rockies - Denver - National Hockey League - Defunct - 1976-77 to 1981-82

• Colorado Rumble - Denver - Major Arena Soccer League 2 - Defunct - 2018

• Colorado Sabertooths - Denver - Defunct - 2012 to 2013

  • • Midwest Indoor Lacrosse Association - Defunct - 2012

    • Continental Indoor Lacrosse League - Defunct - 2013

• Colorado Spartans - Denver - National Arena League - Active - 2024 to present

• Colorado Springs Crusaders - Colorado Springs - American Basketball Association - Defunct - 2011-12

• Colorado Springs Crossovers - Colorado Springs - Independent - Defunct - 2022 to 2023

• Colorado Springs Millionaires - Colorado Springs - Western League - Defunct - 1901 to 1905, 1912, 1916

• Colorado Springs Mountaineers - Colorado Springs - American Basketball Association - Proposed - 2018

• Colorado Springs Sky Sox - Colorado Springs - Pioneer Baseball League - Defunct - 2025 

• Colorado Springs Sky Sox - Colorado Springs - Western League - Defunct - 1950 to 1958

• Colorado Springs Sky Sox - Colorado Springs - Pacific Coast League - Defunct - 1988 to 2018

• Colorado Springs Snow Sox - Colorado Springs - Pecos League - Defunct - 2021 2022

• Colorado Springs Snow Sox - Colorado Springs - Western League - Proposed - 2023

• Colorado Springs Spirit - Colorado Springs - Minor League Football System - Defunct - 1989 to 1990

• Colorado Springs Storm - Colorado Springs - American Basketball Association - Defunct - 2004-05

• Colorado Springs Switchbacks FC - Colorado Springs - United Soccer League Championship - Active - 2015 to present

• Colorado Springs Voodoo - Colorado Springs - Independent Women's Football League - Defunct - 2015 to 2016

• Colorado Stars - Unknown - American Professional Football League - Proposed - 2004

• Colorado Stegos - Denver - Rollerball League - Proposed - 2025

• Colorado Thunder - Denver - National Volleyball Association - Defunct - 1996 to 1997

• Colorado Valkyries - Denver - Women's Professional Football League - Defunct - 2000

• Colorado Venom - Loveland - National Indoor Football League - Defunct - 2004

• Colorado Wild Riders - Monument - National Indoor Football League - Defunct - 2007

• Colorado Wildcats - Denver - Professional Indoor Football League - Defunct - 1998

• Colorado Xplosion - Denver - American Basketball League - Defunct - 1996-97 to 1998-99

• Continental League - Denver - Continental League - Proposed - 1961

• Denver Allstars - Broomfield - Evolution Basketball Association - Defunct - 2021

• Denver Avalanche - Denver - Major Indoor Soccer League - Defunct - 1980-81 to 1981-82

• Denver Aviators - Denver - National Indoor Football League - Defunct - 2007

• Denver Bandits - Denver - Women's National Football Conference - Defunct - 2019 to 2025

• Denver Bears - Denver - American Association of Independent Professional Baseball - Defunct - 1955 to 1983

• Denver Broncos - Denver - Active - 1960 to present

  • • American Football League - Inactive - 1960 to 1969

    • National Football League - 1970 to present 

• Denver Comets - Denver - International Volleyball Association - Defunct - 1977 to 1980

• Denver Cutthroats - Denver - Central Hockey League - Defunct - 2012-13 to 2013-14

• Denver Daredevils - Denver - Roller Hockey International - Defunct - 1995-96

• Denver Dream - Loveland - Legends Football League - Defunct - 2017 to 2019

• Denver Dream - Loveland - Lingerie Football League - Defunct - 2009-10

• Denver Dynamite - Denver - Arena Football League - Defunct - 1987, 1989 to 1991

• Denver Dynamite - Denver - Professional Arena Soccer League - Defunct - 2008-09 to 2009-10

• Denver Dynamos - Denver - North American Soccer League - Defunct - 1974 to 1975

• Denver Dynasty - Denver - Women's Basketball Development Association - Inactive - 2021

• Denver Falcons - Denver - United States Hockey League - Defunct - 1950-51

• Denver Frontier Refiners - Denver - National Professional Basketball League - Defunct - 1950-51

• Denver Gold - Denver - A11 Football League - Proposed - 2015

• Denver Gold - Denver - United States Football League - Defunct - 1983 to 1985

• Denver Gold Rush - Denver - Women's Football League Association - Proposed - 2020

• Denver Grizzlies - Denver - International Hockey League - Defunct - 1994-95

• Denver Invaders - Denver - Western Hockey League - Defunct - 1963-64

• Denver Larks - Denver - American Basketball Association - Proposed - 1967

• Denver Mavericks - Denver - International Hockey League - Defunct - 1959

• Denver Nuggets - Denver - Active - 1974-75 to present

  • • American Basketball Association - Inactive - 1974-75 to 1975-76

    • National Basketball Association - Active - 1976-77 to present

• Denver Nuggets - Denver - National Basketball League - Defunct - 1948-49 to 1949-50

• Denver Oilers - Denver - Southwestern Professional Football League - Defunct - 1973

• Denver Onyx - Glendale - Women's Elite Rugby - Active - 2025 to present

• Denver Outlaws - Denver - Major League Lacrosse - Defunct - 2006 to 2020

• Denver Outlaws (II) - Denver - Premier Lacrosse League - Active - 2024 to present

• Denver Pumas - Denver - Women's Football League Association - Proposed - 2019

• Denver Racquets - Denver - World Team Tennis - Defunct - 1974

• Denver Rangers - Denver - International Hockey League - Defunct - 1988-89

• Denver Rifles - Denver - American Lacrosse League - Defunct - 1988

• Denver Rockets - Denver - American Basketball Association - Defunct - 1967-68 to 1973-74

• Denver Rocks - Denver - International Boxing League - Defunct - 1969

• Denver Rush - Loveland - Extreme Football League (X League) - Defunct - 2022

• Denver Spurs - Denver - Defunct - 1968-69 to 1975-76

  • • Western Hockey League - Defunct - 1968-69 to 1973-74

    • Central Hockey League - Defunct - 1974-75

    • World Hockey Association - Defunct - 1975-76

• Denver Stampede - Denver - PRO Rugby - Defunct - 2016

• Denver Stars - Denver - Major League Rodeo - Defunct - 1978 to 1979

• Denver Thunder - Denver - National Professional Soccer League - Defunct - 1992-93

• Denver Titans - Denver - American Professional Football League - Defunct - 2009

• Denver Zephyrs - Denver - American Association of Independent Professional Baseball  - Defunct - 1984 to 1992

• Flatirons FC - Arvada - United Soccer League W League - Proposed - 2024

• Glendale Raptors - Glendale - Major League Rugby - Defunct - 2018 to 2019

• Grand Junction Jackalopes - Grand Junction - Pioneer Baseball League - Defunct - 2023 to 2025

  • • Formerly the Grand Junction Rockies - Pioneer Baseball League - Defunct - 2012 to 2022 

• Mile High Blaze - Thornton - Women's Football Alliance - Active - 2016 to present

• Mile High Menace - Denver - National Pro-Indoor Football - Proposed - 2016

• Mile High Monarchs - Denver - Women's Basketball Development Association - Defunct - 2021

• National Women's Soccer League - Denver - National Women's Soccer League - Proposed - 2026

• Northern Colorado Hailstorm - Windsor - United Soccer League League One - Defunct - 2022 to 2024

• Northern Colorado Owlz - Windsor - Pioneer Baseball League - Defunct - 2022 to 2025

• Northern Colorado Rain - Windsor - United Soccer League W League - Proposed - 2024

• Northern Colorado Wolfpack - Greeley - Developmental Indoor Football League - Defunct - 2013

• Pueblo Aztecs - Pueblo - All American Professional Basketball League - Proposed - 2005

• Pueblo Bighorns - Pueblo - Texas-Louisiana League - Defunct - 1995

• Pueblo Crusaders - Pueblo - Minor League Football System - Defunct - 1989 to 1990

• Pueblo Indians - Pueblo - Western League - Defunct - ????

• Pueblo Pistols - Pueblo - National Indoor Football League - Defunct - 2007

• Pueblo Punishers - Pueblo - National Arena League - Proposed - 2026

• Real Colorado Cougars - Highlands Ranch - USL W-League - Defunct - 2003 to 2009

• Real Colorado Foxes - Highlands Ranch - USL Premier Development League - Defunct - 2008 to 2015

• Rocky Mountain Experts - Denver - Premier Rugby Sevens - Defunct - 2023

• Rocky Mountain Rage - Broomfield - Central Hockey League - Defunct - 2006-07 to 2008-09

• Rocky Mountain Thunder - Denver - Developmental Indoor Football League - Defunct - 1999

• Rocky Mountain Thunder - Colorado Springs - Indoor Professional Football League - Defunct - 1999

• Rocky Mountain Thunderkatz - Colorado Springs - Women's Football Alliance - Active - 2011 to present

• Rocky Mountain Vibes - Colorado Springs - Pioneer Baseball League - Defunct - 2019 to 2025

• Southern Colorado Stars - Monument - Professional Arena Soccer League - Defunct - 2007 to 2008

• Steel City Menace - Pueblo - American Indoor Football - Defunct - 2016

• Trinidad Triggers - Trinidad - Pecos League - Active - 2012 to present

• Women's National Basketball Association - Loveland - Women's National Basketball Association - Proposed - 2008