(Sonoma County, CA) — Rack & Riddle, the No. 1 custom sparkling wine producer in the United States, has announced a strategic restructuring of its sales and production divisions, along with key additions to its executive leadership team to support continued growth and innovation.

“At Rack & Riddle, we are continuing our commitment to innovation and accelerating our focus on strategic growth,” said CEO Jeff Tuttle. “These structural changes and new executive appointments will help us stay ahead of evolving industry trends and better serve our winery, custom brand, retail, and on-premise partners.”

To strengthen its B2B partnerships for controlled and custom label programs, Rack & Riddle has launched a new Custom Brands Division. The division unifies sales, marketing, and sales operations under a newly created role of chief commercial officer (CCO), filled by Mark Garaventa, longtime executive team member and general manager.

Reporting to Garaventa will be key new hires for this growing division, Vice President Sales Custom Brands Todd Dobozi and Vice President of Marketing Sarah Qualters.

Dobozi joins from The Wine Group, where he held multiple sales leadership roles following earlier posts with Romano Brothers Beverage Company and Southern Glazer’s Wine & Spirits.

Qualters brings experience across major CPG and beverage companies, including Clorox and The Wine Group’s private label division. Kim Kulchycki continues as senior director of marketing.

Stephen Micallef has been promoted to executive vice president of operations. Micallef, formerly vice president of production operations, will oversee companywide scalability and operational excellence across all of Rack & Riddle’s California facilities.

A newly-integrated sales operations team will also support the Custom Brands Division. Brett Vankoski transitions into the role of vice president of sales operations custom brands, and Monica Smith, a 12-year veteran of the company, has been named project manager for custom brands.

Summary of Rack & Riddle New Roles/Hires

Executive Vice President Operations, Stephen Micallef
Vice President Sales Custom Brands, Todd Dobozi
Vice President of Marketing, Sarah Qualters
Vice President Sales Operations – Custom Brands, Brett Vankoski
Project Manager – Custom Brands, Monica Smith

About Rack & Riddle

Founded with the mission to craft superior sparkling wines, Rack & Riddle was established in 2007 in Northern California by wine industry veterans Rebecca Faust and Bruce Lundquist. Through years of steadfast dedication and thoughtful expansion, Rack & Riddle has become the #1 custom sparkling wine producer in the United States with 3.5 million cases of capacity. An exceptional team dedicated to the mastery of making sparkling wine supported by state-of-the-art technology, delivers turnkey winemaking services and custom brands with tank sizes ranging from 500 to 100,000 gallons. Four modern wineries located in Healdsburg, Alexander Valley, Geyserville and Lodi specialize in Méthode Champenoise and Charmat, continuing Rack & Riddle’s long tradition of producing The Best of All Things Sparkling. In 2025, Rack & Riddle introduced CALSECCO a new California sparkling wine category made in the Venetian Tradition and will introduce the world’s finest no- and low-alcohol production process through a partnership with the SOLOS patented Aroma Recovery System. Rack & Riddle prides itself on being an upstanding member of the communities in which it operates and is committed to operating fairly, ethically, and sustainably.

Media Contact

For more information, journalists are asked to contact:

Lisa Adams Walter
(707) 696-5006
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