Karen and Mark Ornstein are the co-founders of Rienne Holdings, Inc., a company pioneering a new standard in the zero-proof sector through curated, wellness-driven beverage experiences.
Karen Ornstein serves as Head of Sales and Strategic Growth, guiding Rienne’s market expansion, brand partnerships, and portfolio development with a clear focus on long-term positioning. She brings over two decades of experience in brand leadership, client engagement, and high-touch commerce.
Mark Ornstein oversees Operations and Finance, leading infrastructure, logistics, and fiscal strategy. With a background in corporate finance and systems management, he ensures operational excellence and financial sustainability as the company scales.
Together, they established Rienne to meet the growing demand for elevated zero-proof offerings in retail, eCommerce, and hospitality. Their flagship tasting bar and retail concept opens in South Florida in late 2025.