Tanarra Capital, a private equity firm, completed its acquisition of a 65% stake in Health Metrics, a provider of software solutions and consulting services to the health care sector. Financial terms were not disclosed. "The partnership would help the company accelerate plans to develop a new set of software products and solutions for the health and social care sectors. Our goal is to be the clear market leader in a sector that needs what we provide more than ever," Steven Strange, Health Metrics Co-Founder and CEO.