What: NHS Human Services Inc., Lafayette Hill. Began in Mount Airy in 1969.

What: Provides services in behavioral health, autism, education, intellectual and developmental disabilities, residential programs, job training, schools, preschool.

Clients: 38,616, including 11,408 kids, in eight states.

Revenues: $523.3 million in fiscal year 2016.

Workers: 10,124, 4,116 here. EndText