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The Team

Rich Hartenberger

Owner / Winemaker 

Rich is the owner, winemaker and grower for Midnight Cellars. Born and raised in Chicago, this Midwesterner has settled well in Paso Robles. When not at the winery, he's either traveling the country selling Midnight wines or home watching the Chicago Bears, White Sox, and Bulls.

Email Rich


Luis Ramierez

Vineyard Manager

Luis manages and implements our growing strategies in both the Township and Anderson Road vineyards. Luis started with Midnight more than 25 years ago as part of the planting crew. He is now an indispensable member of our team and his dedication and resourcefulness is much appreciated. He resides in Paso Robles with his wife and three beautiful daughters. 

Demetra Kaperonis

General Manager 

Demetra is the General Manager of Midnight Cellars. She studied Business Management at Northeastern University in Boston. Upon graduation, she moved back to the central coast to join her family's restaurant business. The transition from food to wine was seamless. When not at the Tasting Room she can be found chasing after her two little boys. 

Email Demetra


wine club & compliance manager


Email Meghan


tASTING ROOM MANAGER & events coordinator


Email Nicole





As a Paso Robles native, her extensive local knowledge is shared each day in the tasting room with guests. When not working, she can be found baking delicious cookies and out playing disc golf with her husband and two pups.   

Email Caysi



COMPLIANCE consultant

Karen has been with Midnight since 2007. She has worked as both our tasting room and wine club manager. Her more recent role is our compliance manager. Outside of work her passion is music. She plays the viola with the San Luis Obispo Symphony and other local performing arts groups.