HMHC

Houghton Mifflin Harcourt Co

A publisher of K-12 reading materials, assessments, and textbooks used in schools across the country, HMH (formerly Houghton Mifflin Harcourt) traces its roots to an 1832 Boston bookstore and printer Henry Oscar Houghton's 1880 partnership with George Mifflin, which gave the company its name. It added "Harcourt" after a 2007 acquisition. Fun fact: it published the first Curious George book in 1941, and the curious little monkey has never gone out of print.

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