Houghton Mifflin Harcourt is an American publisher of textbooks, instructional technology materials, assessments, and reference works. The company is based in the Boston Financial District. It was formerly known as Houghton Mifflin Company, but it... Wikipedia
Founder: Henry Oscar Houghton
Imprints: Holt McDougal and Riverside Publishing
Headquarters: Boston, MA
Parent organization: Veritas Capital
Founded: 1880