HMH

Houghton Mifflin Harcourt develops K–12 learning programs that bring curriculum, assessment, and professional learning together in an integrated instructional environment. Its platform combines core instruction with personalized supplemental practice and intervention, using learner data to inform recommendations for educators. The company’s materials and tools are designed for daily classroom use, with embedded resources intended to reduce administrative effort while engaging students. Its portfolio includes Read 180 and Math 180, digital intervention programs that combine teacher-led instruction with adaptive technology to personalize learning.

The company serves more than 50 million students and 4 million educators across 150 countries. Its operating model extends beyond instructional products to professional services, customer success, digital support, and technical support, reflecting the demands of implementation across schools and districts. With a legacy approaching two centuries, HMH traces its classroom innovation from early American literature programs to computer-aided instruction, computerized testing, and contemporary artificial intelligence applications. The business continues to center its platform strategy on connecting instruction, assessment, and professional learning so educators can act on a more complete view of each learner.