ZeroStack Corp., through its subsidiary, Phatebo GmbH, engages in the pharmaceutical distribution business in Germany. It operates through Commercial & Wholesale and Digital Assets segments. The company distributes a range of pharmaceutical goods and medical products to treat various health indications, including drugs related to cancer therapies, attention-deficit/hyperactivity disorder, multiple sclerosis, and anti-depressants. It also operates as a decentralized AI treasury company that invests in the future of AI infrastructure through strategic ownership of 0G tokens. In addition, the company invests in early-stage companies. The company was formerly known as Flora Growth Corp. and changed its name to ZeroStack Corp. in January 2026. ZeroStack Corp. was incorporated in 2019 and is based in Toronto, Canada.