MCLEAN, Va., Sept. 12, 2024  /PRNewswire/ -- Appian (Nasdaq: APPN) today announced a partnership with Children's National Hospital, a top-ranked pediatric hospital in Washington, DC, to raise awareness and funds for pediatric healthcare in the community. This partnership includes Appian's Backyard Bash on September 12, 2024, and sponsoring the Children's National Race for Every Child 5K on October 19, 2024.Children's National is one of the nation's oldest independent children's hospitals and has been a lead ...