This is an excellent question. There are plenty of tech companies which happen to have been founded by one woman. Why not include some? I suspect this wasn't a deliberate oversight by the author, but it does illustrate the benefit of having an editor or some other feedback before clicking Publish.

Examples:

Blurb, founded by Eileen Gittins

Mightybell, founded by Gina Bianchini

LearnVest, founded by Alexa von Tobel

Joyus, founded by Sukhinder Singh Cassidy