Downtown DC; 1,110 employees
Whether serving as a volunteer around the globe or a staffer in DC, it doesn’t get much nobler than working for the Peace Corps, whose mission includes the advancement of health, education, and agricultural initiatives in 64 countries. Some of the benefits aren’t bad, either—including free weekly Pilates, Zumba, cardio kickboxing, and yoga, plus discounted Capital Bikeshare memberships.
Perk: A noncompetitive eligibility program gives employees, after three years, the chance to compete for government positions not available to the general public.