Independent minor league baseball
Currently Active Independent Minor League Systems:

American Association

Atlantic League

Can Am League

East Coast Baseball League - See North Country Baseball League

Frontier League

North Country Baseball League

Pecos League


Defunct Independent Minor League Systems:

- Arizona-Mexico League (Defunct: 2003)
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Central League - aka Texas Louisiana League (Defunct:1994-2005)
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Freedom Pro Baseball League (Defunct: 2012-2013)
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Golden League (Defunct: 2005-2010)
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Great Central League (Defunct: 1994)
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Heartland League (Defunct: 1995-1998)
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Mid-America League (Defunct: 1995)
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North American League (Defunct: 2011-2012)
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North Atlantic League (Defunct: 1995-1996)
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North Central League (Defunct: 1994-1995)
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Northern League (Defunct: 2002-2010)
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Prairie League (Defunct: 1995-19967)
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South Coast League (Defunct: 2007)
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Southeastern (Defunct: 2002-2003)
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Texas Louisiana League - aka Central League (Defunct: 1994-2005)
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Western Baseball League (Defunct: 1995-2002)