From the eClinicalWorks website: eClinicalWorks is a privately held leader in ambulatory clinical solutions. Its technology extends the use of Electronic Health Records beyond practice walls and creates community-wide records. eClinicalWorks has an established customer base of more than 125,000+ physicians and nurse practitioners, and 850,000+ users across all 50 states and 24 countries, with revenues for 2015 exceeding $400 million.