Thirty Madison Raises $47M in Series B Financing From Polaris Partners, Johnson & Johnson Innovation - JJDC, Inc. and Existing Investors Funding to enable expansion of digital healthcare portfolio and launch of new brands to treat chronic health conditions NEW YORK, August 14, 2020-- Thirty Madison, a leading digital health company reinventing the patient experience for the estimated 133 million Americans living with chronic conditions, today announced a $47 million Series B round led by Polaris Partners. New investor Johnson & Johnson Innovation – JJDC, Inc. (JJDC) also participated in the funding, along with existing investors Maveron and Northzone.