Healthrageous, a US firm that uses a data-driven approach to supporting patients with chronic conditions, has raised US$6.5 million in Series B funding from North Bridge Venture Partners, Egan-Managed Capital, Long River Ventures and a further undisclosed investor.

The firm will use the funds to boost its consumer-facing interface (both mobile and web) as well invest as in its analytics engines and machine learning platform. The company has now raised a total of US$15 million since 2010.

Healthrageous says the aim of the changes is to make its service more personalised. The firm, whose clients include employers and health insurers, gathers patient data from a variety of health devices and then uses it to generate personalised messaging that supports patients in their treament.