Does anyone have any suggestions for creating a female mentorship program at the company level?

There doesn't need to be a "program". All you need is a senior and a junior that are willing to participate. You could facilitate this by asking for seniors that want to mentor and juniors seeking a mentor. You could set up the meeting at a no host event at the club. Mentors and Mentees paired, then let them figure out how they will sustain it between quarterly no host events at the club.

Maybe this will help. See if your base already has a Sisters in Arms program or female mentorship program. Look into this to get ideas if nothing exists.

https://www.google.com/amp/s/http://www.army.mil/article-amp/215841/mentorship_program_provides_support_to_army_women

SGT (Join to see) Has this been approved? At my civilian job, during lunch, I would teach woman co-workers with some guys attending, the fundamentals of money management. I would teach about 401K's, IRA's, company matching, saving, living beneath your needs, investing, stock and bond no load, low cost mutual funds, etc. You can ask your female soldiers what they would like to know to advance in their career and civilian life.