Our Company

ROC Ventures manages a collection of brands in the sports, entertainment, and real estate sectors. These include the Milwaukee Wave, the Milwaukee Milkmen, The Rock Sports Complex, a collegiate baseball franchises located in Indiana, the Ballpark Commons development, and more.

ROC stands for “Return on Community,” a goal which informs each and every endeavor undertaken by the organization.

Our Executive Team

Michael Zimmerman

Owner and Executive Officer

Since 2004, Zimmerman has owned and operated 30 businesses in the healthcare, sports and entertainment industries.  The healthcare companies are now working collectively with over 80 percent of our nation’s hospitals. Zimmerman has been featured in HFM Magazine, HealthLeaders, Modern Healthcare, AAHAM, and The Wall Street Journal.  ROC Ventures grew out of the former MKE Sports & Entertainment, which was created in Spring of 2014.  In Spring of 2013, BizTimes Media awarded Michael Zimmerman the Bravo! Entrepreneur Award, Regional Spirit Award.  In 2015, Zimmerman was a recipient of the Milwaukee Business Journals 40 under 40 Award. 

Mike Doyle


Tom Johns


Dan Kuenzi


Joe Zimmerman