Alexandria Chapter of the Virginia Jaycees
http://www.alexjaycees.org/
Jaycees are a great way for young professionals to network and become involved in their communities. Alexandria’s chapter organizes many fundraising, volunteer and socializing events. Membership is open to individuals aged 21-40, and annual dues are $75.

Alexandria Jaycees
P.O. Box 1836
Alexandria, VA 22313
Tel: 703-866-7171
Email: info@alexjaycees.org

Women in Technology International (WITI) – District of Columbia
http://www.witi.com/center/regionalchapter/dc/
This group is just what it sounds like: a professional organization for women in fields of technology. WITI membership includes perks like career services, technology conferences and networking opportunities.

This is just a sample of what you'll find in the complete Washington, DC, guide.