EHarmony, the company known for its rigorous analysis of couples before sending them out on dates, has made several changes in leadership over the past year, but has settled on Greg Waldorf as chief executive.

waldorf.jpgWaldorf, an early backer of eHarmony had stepped in as interim CEO earlier this year, until a permanent leader was named. Here is the company’s statement (downloads pdf).

Based in southern California, and focused on the “serious” relationship business — it prides itself on the number of people it helps get married — eHarmony has been relatively free from the Internet buzz surrounding some other companies. Some 90 people get married in the US on an average day through eHarmony, according to a Harris Interactive survey.

However, it is bigger than most people realize, profitable, and on target for $150 million in revenue this year — making it one of the largest, if not the largest, private Internet company in Southern California.