Our People

Jean GrobenJean Groben (owner)- Jean coordinates all winery activities and represents the winery on numerous boards and committees. She is known for her extensive knowledge regarding food and wine, and is often found conducting wine education classes around the state. She is an active promoter of the Midwestern wine industry, and has served as President of the Iowa Winegrowers Association. Please contact Jean regarding all general questions regarding the wines and special events at the winery.


Paul GrobenPaul Groben- In addition to his day job, Paul acts as interim winemaker and vineyard manager for Jasper Winery. He is often found in the vineyard doing the never-ending chores necessary for maintaining a healthy vineyard. He is also responsible for general equipment maintenance and for keeping the winery grounds looking great. Paul strongly supports grape growing as a value added Midwestern agricultural product, and works with grape growers around the state to encourage the industry.


Mason GrobenMason Groben- Mason is responsible for all aspects of wine production, as well as promotion and general marketing activities of Jasper Winery. He has a degree in viticulture and enology (grape growing and wine science) from the University of California, Davis. Additionally, Mason has experience working at wineries around the world, including California, New York state, New Zealand, and Australia. He is strongly committed to producing world-class wines using Iowa grown grapes, and is excited to be part of the growing industry in our state. Please contact Mason regarding marketing activities for the winery.


AlisonAlison Boll- Alison manages the winery tasting room, coordinates winery events, and is usually found pouring wine and chatting with winery visitors.  Contact Alison regarding tours/tastings and for any other winery information.


Brian CongdonBrian Congdon- Brian is in charge of winery sales and distribution. He has 10 years experience selling wine at the distributor level, and we are now lucky to have him selling wine for Jasper. Brian is also a talented musician, and plays frequently at our Summer Concert Series. Contact Brian if you are interested in selling our wines in your store.