"I'll only invest in startups with female founders"

Article here. Excerpt:

'No women, no deal.

That's the vow that angel investor and entrepreneur Jonathan Sposato has taken.

Sposato, who is based in Seattle, made a bold claim: He will only back businesses that have at least one woman on the founding team.

"I am no longer going to invest unless you have at least one female founder," Sposato told CNNMoney. "I won't say yes."
...
Spasato sees nearly 100 startups per year looking for funding -- and the vast majority don't have any female founders.

"There is a marked difference in the traction companies get depending on the gender of its founders," Sposato said.

Male entrepreneurs can help change that.

"We have to change the balance of how people think about starting companies," he said.'