WillowTree

Willow Biosciences develops precision fermentation processes to manufacture pure, consistent, and sustainable functional ingredients—including active pharmaceutical ingredients—for the health & wellness, food & beverage, personal care, and pharmaceutical markets. Its proprietary platforms enable rapid scaling from lab to commercial production. Recent years have seen record revenue growth through strategic partnerships with global ingredient manufacturers such as Laurus Labs. The company's focus includes developing biobased routes to high-value APIs like corticosteroids using AI-driven strain/process engineering technologies. In March 2025 it divested its US-based subsidiary but continues core operations out of California with a robust pipeline of partnered programs targeting commercialization by late 2024–25