These are some of the organizations that have attended the Pre Draft Combine in the past. Over the course or more than twenty years, the Pre Draft Combine has seen nearly every junior and NCAA program attend at least one event at some point or another. These organizations are some of the more notable ones though they are not guaranteed to be at any other event you may attend.
Detroit Red Wings
Boston Bruins
Buffalo Sabres
Chicago Blackhawks
Colorado Avalanche
University of Michigan
Michigan State
Boston College
Colorado College
Denver University
Lake superior State
North Dakota
Ferris State
Bentley University
Niagara University
Ohio State
Michigan Tech
North Dakota
Chicago Steel
Dubuque Fighting Saints
Green Bay Gamblers
Madison Capitols
Muskegon Lumberjacks
Youngstown Phantoms
Lincoln Stars
Tri City Storm
Windsor Spitfires
Saginaw Spirit
Niagara Icedogs
Flint Firebirds
Erie Otters
Prince Albert Raiders
Seattle Thunderbirds
Portland Winterhawks
Spokane Chiefs
Aberdeen Wings
Johnstown Tomahawks
Northeast Generals
Fairbanks Icedogs
Janesville Jets
Amarillo Wranglers
Odessa Jackalopes
Boston Jr Bruins - NCDC
Islanders Hockey Club - NCDC
South Shore Kings - NCDC
Twin City Thunder - NCDC
Connecticut Jr Rangers - NCDC
New Jersey - NCDC
NJ Rockets - NCDC
PAL Islanders - NCDC
Ogden Mustangs - NCDC
Provo Predators - NCDC
Pueblo Bulls - NCDC
All USPHL Premier and Elite teams
All NOJHL teams
Most OJHL teams
BCHL teams
SJHL teams