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Loonen
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Loonen

Loonen

Spring Sourced, Perfectly Pure Water

Founded

2025

Founders

Clara Sieg & David Kimmell

Social

Industries

Beverage E-commerce & Retail Health & Wellness Lifestyle Retail Sustainability

About the Brand

About

Loonen is first spring-sourced purified water that's glass-bottled, third-party certified, and tastefully balanced with minerals your body needs. It's a modern bottled water company committed to purity, transparency, and responsible design. The company sources water from protected mountain springs, filters to remove what others miss, rebalances with essential minerals, and bottles exclusively in glass. Every bottle is tested for forever chemicals, microplastics, and over 300 contaminants – then third-party verified with results publicly shared. Loonen is water as it should be. To learn more, visit loonen.com or follow along on Instagram @loonenwater.

Founding Story

When Clara was pregnant with her daughter, she became acutely aware of what she was putting in and on her body. Clara focused on avoiding toxins and plastics, and there seemed to be thoughtful alternatives in nearly every category - from food to personal care to home cleaning. But when it came to water, things got murky.

She couldn’t make sense of what was actually in our tap water, and the more Clara learned about bottled water, the worse it got. What started as an effort to protect her growing family quickly became an urgency to create something better. That’s how Loonen was born.

Loonen is here to lead with purity and transparency and hopes to play a small part in shaping better health outcomes for generations to come.
More here: https://loonen.com/blogs/leading-the-way/our-founding-story?srsltid=AfmBOooH6YLTN9rhI1zlifEewazpe-12UDsksr7820-64VNe5FZT39fn

Signature Products

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WATER

Loonen Sparkling Water

Loonen

$34.99

WATER

Loonen Still Water

Loonen

$34.99

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Team & Experts

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  • Clara Sieg is the Co-Founder and Chief Executive Officer of Loonen, a consumer health startup focused on contaminant-free bottled water, based in San Francisco, California. She earned a Bachelor of Arts degree in Economics from Stanford University before beginning her professional career in the Financial Sponsors and Leveraged Finance group at UBS Investment Bank. In 2010, Sieg became a founding member and Partner at Revolution Ventures, where she opened the firm's San Francisco office and helped raise $350 million across two early-stage venture funds. During her tenure in venture capital, she executed 11 investments and served on the corporate boards of several portfolio companies, including Policygenius and Framebridge. After more than a decade of early-stage investing in consumer technology and fintech, Sieg is currently focused on developing health and wellness products for the consumer market.

    Location · San Francisco, CA Since · 2025

  • Location · Boston, MA Since · 2025

Asset Library

Editorial-ready assets. All images cleared for press use with credit.