AHS Feeder Baseball
American West Little League
Apache Baseball of Littleton
Arapahoe Little League
Arapahoe Youth League
Arvada Junior Baseball Corp.
Aurora Shamrocks
Boulder Bisons
Brighton Youth Baseball
Broomfield Baseball
Broomfield Baseball League
Broomfield Baseball League
Broomfield Braves
Broomfield County Junior Baseball Association
Centaurus Little League 
Centennial Baseball
Centennial Sabers
Cherry Creek Little League
Cherry Creek Stars
Cherry Creek Youth Baseball
Colorado Baseball Players Association
Colorado Buzz
Colorado Chatfield Hawks
Colorado Cougars
Colorado Crush
Colorado Cutthroat Baseball Club
Colorado Little League Links
Colorado River Bandits
Colorado Springs Bulldogs
Colorado Springs Diggers
Colorado Springs Outlaws
Colorado Springs Outlaws
Columbine Cyclones
Columbine Rebels
Columbine Thunder
Denver Junior Baseball Association
Dry Creek Baseball
Fort Collins Baseball Club
Fort Collins Baseball Club
Fort Collins Lugnuts
Fort Collins River Bandits
Fort Collins Slammers
Front Range Baseball
Front Range Bombers
Greeley Diamondbacks
Greeley Gold
Greeley Titans
Jefferson County Junior Baseball League 
Ken Caryl Little League
Longmont Baseball League
Monument Rangers
North Boulder Little League
North Jefferson Junior Baseball Association
North Metro Little League
North Metro Mavericks
North Metro Mavericks
Northern Colorado Junior Baseball League
Northern Lights Little League
Parker Bears
Parker Redbirds
Patriots Youth Sports
Pikes Peak Competitive Baseball Association
Pikes Peak Crush
Ralston Valley Mustangs
Rocky Mountain Mustangs
South Boulder Little League
Spartan Youth Club
Thornton Storm
USSSA Baseball of Colorado
West El Paso Baseball
Western Colorado Baseball Association