Not many people have heard of Spark Networks, but far more are familiar with what it owns: JDate, ChristianMingle and a host of other sites like SilverSingles.com and BlackSingles.com.

JDate, especially, would seem to be one of the success stories of online dating. High brand recognition. Stories about happily married couples who met on the site. And last year, with the acquisition of JSwipe, it branched out into the Tinder-like market of users who swipe left or right to find love.

“Every Jew knows someone who knows someone who met on JDate,” said Aaron Young, Spark’s former vice president for business development and strategic partnerships.

But, as can sometimes be the case with online daters themselves, all is not what it seems. Since 2011, Spark Networks has been led by a rotating array of chief executives — four over five years. It was also involved in an ugly legal fight over the letter J in JSwipe, and its share price recently dropped to under a dollar from a high of $8.92 in May 2013.