Digital health tech company Jiff has raised $18 million in Series B financing. The round was led by new investor Venrock and received participation from existing investors Aberdare Ventures and Aeris Capital. Jiff's previous funding, a $7.5 million Series A, was raised at a valuation of almost $30 million in early 2012. In total, the company has raised over $25 million in equity funding. Jiff's platform allows companies to connect their health benefit design and incentives to consumer digital health applications, devices and services that employees already know.