Connecticut-Based Clinical Data Company Diameter Health Raises $9.6 Million

By Noah Long ● April 13, 2019

Diameter Health, a Farmington, Connecticut-based clinical data integration company, announced it raised $9.6 million in Series A-1 funding. This round f funding is led by new investor Optum Ventures — which is the independent venture fund of Optum. Existing investors Activate Venture Partners, Connecticut Innovations, Excelerate Health Ventures, and LRV Health also participated in this round.

Founded by CEO Eric Rosow and president/chief strategy officer John D’Amore, Diameter Health is known for developing leading-edge technology that cleanses multisource clinical data with a focus toward actionable insights for healthcare organizations. This creates a single and unified source of longitudinal structured patient information for improved care. 

“The volume of clinical data being exchanged has grown exponentially over the last decade, and players across the health care ecosystem are grappling with how to make this influx a useful and valuable asset,” said Diameter Health CEO Eric Rosow. “Our partnership with Optum Ventures will accelerate our ability to meet the industry demand for technology that makes clinical data actionable at scale.”


The Diameter Health platform empowers organizations that depend on multi-source data streams like Health Information Exchanges (HIEs), Accountable Care Organizations (ACOs), health systems, and health plans to realize great value from their data. And Diameter Health’s technology is certified by the National Committee for Quality Assurance (NCQA) and the Office of the National Coordinator for Healthcare IT (ONC).

“We are excited to have Optum Ventures as part of the Diameter Health team. We all know that access to clinical data has limited value if the data isn’t reliable. Diameter Health is capitalizing on the market need for clean, normalized, actionable data from disparate systems and sources. We believe that need will continue to grow as clinical data is increasingly leveraged throughout the health care system,” added LRV Health general partner Tripp Peake.

With this funding round, Diameter Health is going to continue its development, cloud delivery, and commercial resources.