Clara Sieg Challenges Bottled Water Giants With Filtration and Glass Packaging

By Jon Bier · Entrepreneur · 2026-07-15

Entrepreneur reports that venture capitalist Clara Sieg launched Loonen after a six-month search for pristine natural water revealed that every spring contained impurities like arsenic or nitrates. To solve this, she abandoned the industry standard of bottling raw water, instead

Entrepreneur reports that venture capitalist Clara Sieg launched Loonen after a six-month search for pristine natural water revealed that every spring contained impurities like arsenic or nitrates. To solve this, she abandoned the industry standard of bottling raw water, instead