Joy Liu is the co-founder and CEO of Plenful, a San Francisco-based AI workflow automation platform modernizing healthcare operations. A Northwestern-trained economist who cut her teeth at Goldman Sachs and Barclays before moving into specialty pharmacy operations at Shields Health Solutions, Liu built Plenful from first-hand frustration with manual pharmacy workflows. Since emerging from stealth in 2023, she has grown the company to 60+ healthcare customers, achieved 4x year-over-year growth, and raised $76 million in total funding - including a $50 million Series B in 2025 co-led by Danaher co-founder Mitchell Rales. Named to Inc.'s 2026 Female Founders 500 list, Liu is on a mission to return time and focus to healthcare workers drowning in administrative burden.
Plenful is a San Francisco-based AI workflow automation company building software that takes the busywork out of pharmacy and healthcare operations. Founded in 2021 by former pharmacy operator Joy Liu, the company helps health systems, specialty pharmacies, and infusion teams automate 340B audits, rebate management, prior authorization, and patient intake - work that has long been trapped in PDFs, faxes, and spreadsheets.