![]() HOUGHTON MIFFLIN COMPANY Houghton Mifflin Harcourt (HMH) is an education technology company providing K-12 core, supplemental, intervention, and professional learning solutions. | ![]() School Specialty School Specialty is a company that designs, manufactures, and distributes classroom supplies and furniture. | ||
Founding Date | Founding Date 1832 | Founding Date 1992 | Founding Date 2020 |
Type | Type Private | Type Subsidiary | Type Subsidiary |
Tags | |||
Locations | Locations San Mateo, US HQ London, GB Arlington, US | Locations Greenville, US HQ | |
Employees | Employees 4,5631% decrease | Employees 2641% decrease | Employees 3,3921% increase |

Rosetta Stone is a company that provides technology-based language learning solutions.
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School Specialty is a company that designs, manufactures, and distributes classroom supplies and furniture.
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