JMC Investment

JMC Investment is the direct equity investment arm of the Painvin family's single-family office ("JMC Family Office"), based in New York since 2012. It focuses on long-term investments in small and mid-sized privately owned growth companies across B2B sectors including industrial manufacturing, aerospace & defense, healthcare (including life sciences), certification & testing services. The firm typically seeks majority stakes and partners closely with management teams for responsible growth. While not a biotech or pharma company itself ("not health" by operational definition), it has made significant investments in the healthcare/life sciences sector—such as Millrock Technology (freeze-drying equipment for pharma/biotech), SiO2 Medical Products (parenteral containers for biologics), Keosys SAS (clinical trial imaging management services)—and supports innovation within these industries.