Topics: eHarmony Information, Statistics, Facts and History.
eHarmony was founded by Neil Clark Warren , a psychologist and author of relationship advice books, along with Greg Forgatch, Warren's son-in-law. In the late 1990s, after about 35 years of work as a clinical psychologist and marriage counselor, Warren said he decided to test his theory that certain characteristics can predict compatibility and lead to more satisfying relationships. After three years of research in collaboration with Galen Buckwalter, Warren developed a model of compatibility that is now the basis of the company's matching system. 
The service was financed with a $3 million investment from Fayez Sarofim & Co. and individual investors.  In 2004, eHarmony received the fourth largest venture capital infusion of that year from Sequoia Capital and Technology Crossover Ventures.  With its subscription model, the service has been profitable since then and reached a milestone in 2009 as it exceeded $1.0 billion in cumulative revenue. 
During 2009–12, new memberships, retention rates and time spent on the site decreased. In July 2012, the 78-year-old eHarmony founder came out of retirement to become chief executive. Warren closed unprofitable international operations, switched advertisers, made changes to the board,  and bought back stock from Sequoia Capital and Technology Crossover Ventures.