The Internet dating site eHarmony said Wednesday that Gregory Waldorf has been appointed chief executive after serving on an interim basis in the position since March.

The Pasadena-based company cited Waldorf’s experience working with high growth companies as an entrepreneur, investor, and executive, as well as his deep knowledge of the company as reasons for his appointment. He also was a founder of the company.

“As founding investor and a convening member of our board of directors, Greg has been one of the most significant contributors to the tremendous success of our company,” said Chairman Neil Clark Warren, another founder. “Greg’s demonstrated contributions to our business, vision and our members make him exceptionally well suited for this role.”

Waldorf earned his undergrad degree from the University of California at Los Angeles and also earned an M.B.A. from Stanford University and was co-founder of Startup, a Palo Alto-based non-profit that has provides business training for nearly 500 aspiring entrepreneurs.