I'm definitely not in charge; I've only just graduated from college, so the sum total of my work experience is two internships. The companies I worked at did both ask for advice/feedback on how they could recruit more women; they both view their lack of gender diversity as a problem. (neither had any full-time female developers; only one had female dev interns other than me)
I don't think I had anything useful to tell them at the time, and I'm still don't have especially clear ideas on how to solve the problem. Both companies are full of very nice, very smart people. They weren't doing anything wrong that I could see. It seems to me that the problem might be advertising.
They might be (unintentionally) advertising in male-dominated spaces (online or otherwise). This might be somewhat counteracted by the fact that both companies support/advertise-at specifically for-tech-women events (sponsoring a Girl Geek dinner; attending the Grace Hopper conference job fair).
Another possible factor is that both companies are known for having challenging interviews. (like a lot of well respected tech companies) It's possible that some potential female applicants talk themselves out of applying; I've seen (male) friends come pretty close to talking themselves out of applying because they felt they wouldn't get the job.
This is also something of a circular problem. The lack of female developers makes them less appealing places to work for potential new female hires; the imbalance signals that there might be problems at the company and the situation is a problem in itself. The company might also be less likely to hear about female-focused events to advertise at.
I don't claim to have a solution. I just wanted to back up that have enough women in general around does not really help with a lack of technical women.