I agree with squozzer, you should consider expanding your activities beyond folks who know you personally.

I really like my work and I work a lot. I have worked in early-mid stage startup and now am working with a pre-series A stage startup. I have never shied away from asking for more responsibilities or climbing up the management chain. I am generally known as the more assertive person in the organization. But when it comes to compensation, I cannot bring it up. Not sure if it has to do with being a female.

It would be ideal if there was a 'go to' person who can push me more in negotiating for better compensation.