Houghton Mifflin Harcourt Employee Directory
E-Learning ProvidersMassachusetts, United States1001-5000 Employees
Houghton Mifflin Harcourt has about 4.1K employees across 3 continents, most of them in North America. By country, the largest groups are United States Of America (94%) and Ireland (3%). Sales and Consulting make up 34% of the profiles with a known department. Houghton Mifflin Harcourt's workforce spans 33 departments. Houghton Mifflin Harcourt's workforce fell 27% between July 2025 and July 2026.