The AF2 was the Arena Football League's developmental league; it was founded in 1999 and played its first season in 2000. Like its parent AFL, the AF2 played using the same arena football rules and style of play. League seasons ran from April through July with the postseason and ArenaCup championship in August. The AF2 continued to operate while the AFL suspended operations for its 2009 season. The league was effectively disbanded in September 2009 when no team committed to playing in 2010, but several of the stronger franchises transferred into the reconstituted AFL.
The National Indoor Football League (NIFL) was a professional indoor football league in the United States. For their first six years, the league had teams in markets not covered by either the Arena Football League or its developmental league, AF2, however, that changed briefly with their expansion into AFL markets such as Atlanta, Denver, and Los Angeles, and AF2 markets such as Fort Myers and Houston. Green Bay Packers head coach Matt LaFleur, Buffalo Bills running back Fred Jackson, New Orleans Saints quarterback John Fourcade and Pittsburgh Steelers Super Bowl running back Bam Morris, all played in the NIFL. The league folded in 2008.
The Tri-Cities Fever was a professional indoor football franchise based in Kennewick, Washington. The Fever joined National Indoor Football League (NIFL) in 2005 as an expansion team. The Fever were owned by Teri Carr. From 2005 to 2016, the Fever played their home games at the Toyota Center in Kennewick, Washington. On June 30, 2016, the team announced it would go dormant for the 2017 season and beyond.
The Sioux Falls Storm are a professional indoor football team based in Sioux Falls, South Dakota. The Storm joined the original Indoor Football League as an expansion team in 1999 as the Sioux Falls Cobras, and first took the field for the 2000 season. They currently participate in another iteration of the Indoor Football League; prior to that, the Storm were in United Indoor Football (UIF), where they won all four of the league's championship games. In the newer IFL, the Storm have won seven of the eleven championships in the league as of 2019.
The Kentucky Horsemen was an indoor football team based in Lexington, Kentucky. The team played its home games at Rupp Arena. The organization began as a 2003 expansion member of the National Indoor Football League, where they were successful. Following the 2004 season, where they defeated the Sioux Falls Storm to win Indoor Bowl IV, the Horsemen and other NIFL teams joined the new United Indoor Football (UIF) as a charter member, where they made the playoffs. They lost to the Sioux Falls Storm. They made the playoffs again in 2006 and advanced to United Bowl II where they lost to the Sioux Falls Storm. From 2008 to 2009, the Horsemen played in the AF2. The team announced intentions to compete in the new Arena Football League following the dissolution of the AF2, but instead ceased operations in October 2009.
The Spokane Shock were a professional indoor American football team based in Spokane, Washington, that played their home games at the Spokane Veterans Memorial Arena. The team was initially a member of arenafootball2 (af2), the Shock won division titles in all four seasons and ArenaCups in 2006 and 2009 before they joined the Arena Football League (AFL) in its 2010 relaunch. The team advanced to the playoffs three times after joining the AFL, winning ArenaBowl XXIII in their first season, making them the only arena football franchise to win both the ArenaCup and the ArenaBowl.
The Wichita Wild were a professional indoor football team based in Wichita, Kansas. They were members of the Champions Professional Indoor Football League (CPIFL). The team was founded in 2006 as an independent indoor football franchise. In 2008, the team joined United Indoor Football (UIF). They joined the Indoor Football League (IFL) during the UIF and Intense Football League merger of 2009. In 2012, the team left the IFL to become charter members of the CPIFL. The Wild's home games were played at Hartman Arena in nearby Park City. When they lost their lease with the Hartman Arena, they folded..
The Indoor Football League (IFL) is a professional indoor American football league created in 2008 out of the merger between the Intense Football League and United Indoor Football. It has one of the largest number of currently active teams among indoor football leagues. As of the 2024 season, the league consists of 16 teams in two conferences with each team playing 16 games over 19 weeks.
The Louisville Xtreme were an indoor football team based in Louisville, Kentucky, with home games at the KFC Yum! Center. They began play as the Kentucky Xtreme in the Continental Indoor Football League (CIFL) in 2013 and 2014. Midway through the 2014 CIFL season, the league removed the team's membership and the Xtreme temporarily suspended operations. After playing the 2015 season in the semi-professional Minor League Football Alliance (MLFA), the team rebranded as the Louisville Xtreme in 2017. In 2020, the Xtreme were added to the American Arena League (AAL) but cancelled its season citing the COVID-19 pandemic. For the 2021 season, the Xtreme were announced to be joining the National Arena League, but instead joined the Indoor Football League three months later.
Champions Indoor Football (CIF) was a professional indoor American football minor league created in 2014 out of the merger between the Champions Professional Indoor Football League (CPIFL) and Lone Star Football League (LSFL), plus one team from the Indoor Football League and two expansion teams.
The 2016 Tri-Cities Fever season was the team's twelfth season as a professional indoor football franchise and seventh in the Indoor Football League (IFL). One of ten teams that compete in the IFL for the 2016 season, the Fever are members of the Intense Conference.
The National Arena League (NAL) is a professional indoor football league that began play in 2017. For the upcoming 2024 season, the league consists of six teams.
The American Arena League (AAL) is a professional indoor football minor league that began playing in 2018. The league was initiated by a merger between Arena Pro Football (APF) and the Can-Am Indoor Football League (Can-Am), although the AAL only claimed the APF history after the former Can-Am founder left the league. Teams from both leagues, new teams, and later teams from Supreme Indoor Football and National Arena League constituted the new league for its inaugural season. Since 2023, the league has operated as American Arena League 2 (AAL2), which was originally conceived as the AAL's minor league but has since effectively taken its parent league's place.
The Idaho Horsemen are a professional indoor football team based out of Nampa, Idaho, with home games at the Ford Idaho Center. They are owned by Chris Reynolds from Platinum Events & Security LLC. In 2019, the team owners founded the American West Football Conference. They joined the National Arena League before the 2024 season.
The American West Football Conference (AWFC) are an inactive professional indoor American football minor league created in 2018 by Platinum Events & Security, LLC, the owners of the Idaho Horsemen. The league's inaugural season was in 2019.
The Reno Express were a professional indoor football team in Reno, Nevada. They play their home games at the Reno Events Center during the 2019 American West Football Conference (AFC) season. They were the first professional football team to play in Reno since the Reno Barons played part of a season in 2011. The team withdrew from the AWFC 2020 season about a month prior to the start of the season, but stated they had plans to return in 2021.
The Wenatchee Valley Skyhawks are a professional indoor football team based in Wenatchee, Washington, that began playing football in 2019 with home games at the Town Toyota Center. It is the first team to play in the Wenatchee Valley since the Wenatchee Valley Venom of the Indoor Football League in 2011. They are owned by Hook Sports Media, LLC.
The American Indoor Football Alliance (AIFA) was a minor-professional American indoor football league based in the United States.
The Oregon High Desert Storm are a professional indoor football team based in Redmond, Oregon, that began playing football in 2021 with home games at the First Interstate Bank Center at the Deschutes County Fairgrounds. It was the first team to play in Central Oregon. They were owned by Platinum Events & Security, LLC, owners of the American West Football Conference.
The Tri-City Rush were a professional indoor football team based out of Pasco, Washington, with home games at the HAPO Center during the 2021 and 2022 seasons. They were owned by Rage Sports, LLC, and were members of the American West Football Conference. They were the third arena/indoor team to play in the Tri-City region preceded by the Tri-Cities Fever of NIFL, af2 and the Indoor Football League and the Tri-Cities Fire of the AWFC. They folded in 2022 after playing two seasons and winning two league championships, citing financial difficulties.
