Milwaukee Preseason I.D.
| Name | State | School | Class | Pos | Commitment |
| Jalen Avery | IL | Oswego East | 2019 | OF | Oakton CC |
| Aaron Basken | WI | Bradford | 2020 | RHP | |
| Luke Blaha | WI | Mukwonago | 2019 | OF | Wisconsin-Stevens Point |
| Dan Blomgren | WI | Janesville Craig | 2019 | SS | Chipola College |
| Tyler Brandenburg | WI | Lake Country Lutheran | 2019 | 1B | Heartland CC |
| Lukas Broske | WI | West Bend West | 2020 | 1B | Indian Hills CC |
| Max Bruff | WI | Indian Trail | 2019 | OF | McHenry County JC |
| Jason Brulport | WI | Tremper | 2020 | 1B | Lake Land JC |
| Julio Cajigas | IL | Romeoville | 2019 | OF | Harper JC |
| Blake Carey | WI | University School of Milwaukee | 2020 | C | Lindenwood University |
| Isaiah Cerfus | WI | Union Grove | 2021 | RHP | Madison JC |
| Jason Clark | IL | ROWVA | 2019 | OF | Knox College |
| Colton Coca | WI | Case | 2020 | 3B | Central Michigan |
| Thomas Coffey | WI | Bradford | 2019 | RHP | Carthage College |
| Cedric Collier | IL | Barrington | 2019 | 1B | |
| Alex Dibble | WI | Tremper | 2021 | SS | |
| Gunnar Doyle | WI | Oak Creek | 2020 | OF | Madison JC |
| Joshua Edmundson | WI | Shoreland Lutheran | 2020 | OF | |
| Trent Ehlers | WI | Sturgeon Bay | 2019 | LHP | Wisconsin-Whitewater |
| Isaac Engelbrecht | WI | Oak Creek | 2021 | RHP | Bryant & Stratton - Wisconsin |
| Eric Erato | WI | Sussex Hamilton | 2020 | 3B | Northern Illinois |
| Nick Evert | WI | Franklin | 2019 | RHP | Carroll University |
| Trace Ferreira | WI | New Berlin West | 2019 | OF | Indiana State |
| Kyle Fluegel | WI | Oak Creek | 2020 | OF | Milwaukee School of Engineering |
| Lukas Galdoni | IL | Carmel | 2019 | 1B | Butler |
| Riley Garczynski | WI | Marquette | 2019 | SS | Indiana University Kokomo |
| Jakob Gast | WI | Hale | 2019 | C | Milwaukee Area Technical JC |
| Brayden Gorecki | WI | Sussex Hamilton | 2020 | SS | Illinois-Springfield |
| Cooper Griffiths | WI | Westosha Central | 2020 | RHP | Rend Lake JC |
| Jonathon Hanscom | IL | Mundelein | 2020 | RHP | Lewis University |
| Luke Hansel | WI | Union Grove | 2019 | RHP | Madison JC |
| Bryce Henninger | WI | Mishicot | 2019 | LHP | |
| Evan Henry | WI | Wilmot | 2019 | C | Carroll University |
| DJ Hess | WI | Germantown | 2019 | RHP | College of Lake County |
| Adam Hill | WI | Wauwatosa East | 2019 | 3B | |
| Gavin Hinckley | WI | West Bend West | 2020 | RHP | Indian Hills CC |
| Billy Howard | WI | Menomonee Falls | 2021 | RHP | McHenry County JC |
| Riley Hughes | WI | Bradford | 2019 | C | Carthage College |
| Alexander Huissen | WI | Lakes Community | 2019 | OF | Adrian College |
| Dylan Hunt | WI | Marquette | 2020 | 3B | |
| Alex Jamroziak | WI | Muskego | 2021 | RHP | |
| Steve Jamroziak | WI | Muskego | 2019 | OF | Minnesota |
| Peyton Jenkins | WI | Sun Prairie | 2021 | RHP | |
| Ryan Kaestle | IL | New Trier | 2021 | SS | Oberlin College |
| Colin Kalinowski | WI | Oak Creek | 2019 | C | McHenry County JC |
| Connor Kelly | WI | Racine Lutheran Prairie | 2019 | SS | Carroll University |
| George Klassen | WI | Port Washington | 2020 | RHP | Minnesota |
| Sabastian Kloss | WI | Whitnall | 2020 | RHP | Rock Valley JC |
| Timothy Krohn | WI | Tremper | 2019 | OF | |
| Tommy Lamb | WI | Grafton | 2020 | LHP | Oklahoma |
| Logan Landers | WI | Brookfield Academy | 2021 | RHP | |
| Kameron Laskowski | WI | Sussex Hamilton | 2019 | C | Madison JC |
| Reece Lawler | IL | Warren | 2020 | RHP | Iowa |
| Joseph Lawrence Jr | WI | Muskego | 2021 | 1B | |
| Jack Leahy | WI | Oak Creek | 2020 | OF | |
| Drew Leszczynski | WI | Brookfield Central | 2019 | OF | |
| Josh Lewitzke | WI | Muskego | 2021 | OF | |
| Arthur Liebau | WI | Homestead | 2020 | RHP | Lindenwood University |
| Benjamin Loyd | WI | Tremper | 2021 | SS | Kaskaskia JC |
| TJ Manteufel | WI | Union Grove | 2020 | SS | Bradley |
| Logan Mantz | WI | Slinger | 2019 | SS | Madison JC |
| Kyle Matrise | WI | St. Joseph Catholic | 2020 | OF | |
| Kyle McKinnon | WI | Bradford | 2019 | RHP | Carthage College |
| Steven Mehmert | WI | Lake Country Lutheran | 2018 | OF | |
| Noah Miller | WI | Ozaukee | 2021 | SS | Alabama |
| Kyle Mitchell | WI | Westosha Central | 2021 | OF | Wisconsin-Whitewater |
| Jacob Neese | WI | Sheybogan North | 2019 | 3B | Parkland College |
| Aiden Nichter | WI | Christian Life | 2020 | C | |
| Nick Paget | WI | New Berlin West | 2019 | 1B | Wisconsin-Whitewater |
| Anthony Pagliaroni | WI | Indian Trail | 2020 | OF | |
| Gianni Passarelli | OH | Buckeye Valley | 2021 | SS | Ohio State |
| Tyler Peck | WI | Oak Creek | 2021 | RHP | Ohio |
| Tanner Peterson | WI | Wilmot | 2019 | OF | Illinois State |
| Tommy Pinnow | WI | Union Grove | 2021 | RHP | Milwaukee Area Technical JC |
| Cade Pisca | WI | Oak Creek | 2019 | RHP | St. Cloud Technical & CC |
| Corey Plahuta | WI | Muskego | 2021 | LHP | |
| Nathan Platter | WI | Oconomowoc | 2019 | RHP | Winona State University |
| Brandin Podziemski | WI | St John Northwestern Military Academy | 2021 | LHP | |
| Richard Pouzar | WI | Hartford Union | 2021 | OF | Beloit College |
| Connor Prielipp | WI | Tomah | 2019 | LHP | Alabama |
| Aaron Quilling | WI | Mukwonago | 2019 | 2B | Northwood University |
| Angel Rades | WI | Oak Creek | 2021 | OF | Wisconsin-Parkside |
| Jarrett Ramer | WI | Bradford | 2019 | RHP | Upper Iowa |
| Blake Read | WI | Muskego | 2021 | LHP | Miami (OH) |
| Dominic Rizzotto | WI | South Milwaukee | 2019 | RHP | Edgewood College |
| Elliot Rodriguez | WI | Tremper | 2021 | 2B | |
| Tanner Rosen | WI | Sussex Hamilton | 2020 | 2B | |
| Mason Ruh | WI | Wisconsin Lutheran | 2021 | RHP | Northern Illinois |
| Martin Schabel | WI | Tremper | 2020 | OF | |
| Austin Scoville | WI | Oak Creek | 2020 | SS | |
| Peyton Seebacher | WI | Muskego | 2021 | OF | Wabash Valley JC |
| Michael Seegers | WI | Home School | 2020 | SS | Iowa |
| Jacob Shippee | WI | Indian Trail | 2020 | RHP | |
| Ben Siekierski | WI | Mukwonago | 2019 | 1B | Northwood University |
| Donald Singer | WI | Random Lake | 2020 | 2B | Bryant & Stratton - Wisconsin |
| Henry Sipchen | IL | Montini Catholic | 2020 | LHP | Lawrence University |
| Sawyer Smith | WI | Shoreland Lutheran | 2021 | SS | Kansas |
| Bryce Spaulding | WI | Case | 2019 | RHP | Carroll University |
| Erik Sutton | WI | Homestead | 2019 | RHP | |
| Justin Swanson | WI | Johnson Creek | 2020 | 3B | North Park University |
| Ethan Taylor | WI | Tremper | 2020 | LHP | Concordia University (WI) |
| Jacob Thoresen | WI | Oak Creek | 2021 | RHP | College of Lake County |
| Paul Toetz | WI | Greendale | 2019 | SS | Indiana |
| Cody Tostrud | WI | Bradford | 2019 | OF | Carthage College |
| Brandon Trumbo | WI | Tremper | 2021 | OF | |
| Joe Turco | WI | Franklin | 2021 | C | Wisconsin-Platteville |
| Trent Turzenski | WI | Burlington | 2019 | RHP | Valparaiso |
| Ryan Ueberfluss | WI | Kenosha Tremper | 2020 | C | |
| Luke Uhwat | IL | Richmond Burton | 2019 | RHP | McHenry County JC |
| Dane Vance | WI | Lake Country Lutheran | 2019 | SS | |
| Tyler Vaughan | WI | Sussex Hamilton | 2020 | OF | Western Technical JC |
| Nolan Vincent | WI | Germantown | 2020 | RHP | Milwaukee School of Engineering |
| Xavier Watson | WI | South Milwaukee | 2019 | SS | Illinois |
| Zach Weisgerber | WI | Xavier | 2020 | C | |
| Spencer Whitlock | WI | Wauwatosa West | 2019 | RHP | |
| Andrew Wiegman | IL | Carmel Catholic | 2019 | SS | Louisville |
| Jacob Wilde | WI | Waukesha West | 2019 | LHP | Madison JC |
| Nicklas Williams | WI | Union Grove | 2021 | SS | Wabash Valley JC |
| Jonah Wronski | WI | Marquette | 2020 | C | Emory University |