Alexandria – October 19, 2026 -- Residents of Arlington, Fairfax, Loudoun and Prince William Counties can now book certified personal trainers who arrive at their home, office or neighborhood with professional-grade equipment. GYMGUYZ, which describes itself as the world's largest in-home and on-site personal training franchise, has launched its Northern Virginia location. Its bright-red vehicles carry the gear, so clients skip the commute, the crowded gym and the guesswork.