Bob & Anne Arns

Proprietors Anne and Bob Arns envisioned a small vineyard estate focusing on Bordeaux varietals over 40 years ago. With a keen interest in wine, they were both very inspired by the now famous “Judgment of Paris" tasting that took place in 1976, when California wines were rated above their French counterparts. The Arns look back at that hallmark year as the beginning of their quest to produce world class wine. In 1998, they purchased their dream Napa Valley property and planted 15 acres the following year. They have a passion for sharing food and wine with friends and family and enjoy their agricultural connection to the earth.

Kina Kreer

As Estate Director, Kina oversees sales and marketing for Tournesol. She supports Anne and Bob in taking care of Inner Circle members, Tournesol Estate guests, and trade relationships nationwide.


Ken Bernards

Ken Bernards is widely acknowledged to be one of California’s visionary winemakers. Since his first harvest in 1986, Ken has remained on the leading edge of winemaking technique in California, using scientific experimentation in the vineyards and in the winery, while at the same time adhering to traditional, artisanal methods of winemaking. He has made wine for the Arns since the first harvest of 2002 and is always striving to allow vineyard character to be expressed through Tournesol wines.

Humberto Ghivarello

Humberto hails from Santiago, Chile. He started with the team as a harvest intern in 2011, was elevated to winemaker in 2015 and works closely with Ken in all aspects of wine production.


Zach Berkowitz

Viticulturist Zach Berkowitz has over 35 years of noteworthy experience in the farming and supervision of premiere vineyards. Under his careful guidance, Tournesol Vineyards produces superior grapes using more natural, less intrusive techniques, including integrated pest management and deficit irrigation. Zach has a great ability to focus on each vineyard block and implement individual, custom farming practices based on the specific terroir.

Carlos Martinez

Carlos has farmed Tournesol Vineyards since its inception. He works closely with Zach and Ken to ensure ecological grape production and superior wine quality. From pruning to harvest, Carlos and his dedicated crew perform each task by hand with skill, care and knowledge.

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