Loudoun Track and Field Club
- A youth program focused on developing strength, speed and skill in kids interested in track and field. As a USATF club, participants have the opportunity to compete in the Junior Olympics and World Championships.
- http://www.loudountrack.org/

Loudoun County Chapter - Isaac Walton League of America
- Organization of hunters, anglers and outdoor recreationists. Site includes foundation mission statement, activities, news, scholarships, and associated links with NRA. Loudoun County, VA.
- http://www.loudouniwla.org

Hogback Mountain Sports Club
- Paintball fun at a reasonable price in an atmosphere promoting safety and sportsmanship. For parties, corporate events, and team games. Includes information on facilities, events, registrations, prices, courses, and FAQ. Located in Leesburg, Loudoun Count
- http://hogback.net

The Dog School
- Dedicated to helping dogs and their families build a loving, lifelong relationship based on mutual trust, respect and caring discipline through dog obedience training. Site includes FAQ, training and trainers, newsletter, links and on-line question and an
- http://www.thedogschool.com