Barry O’Callaghan

Houghton Mifflin Harcourt Publishing Co. is a learning company, which engages in instructional curriculum, assessment, technology, and professional learning. The company was founded in 1832 by William Ticknor and James Fields and is headquartered in Boston, MA.

Riverdeep Interactive Learning Ltd. is an education software developing company. It provides interactive learning solutions in schools and homes. The company's products are being used in more than 45,000 schools in over 20 countries worldwide. Riverdeep Interactive Learning was founded by Patrick McDonagh in 1995 & is located in Dublin, Ireland.

Riverdeep Holdings Ltd. develops software and provides e-learning solutions. It operates offices in San Francisco, Dublin and Manchester. The company publishes interactive products focusing on education and personal productivity for the consumer and school markets. Riverdeep Holdings is located in Dublin, Ireland.

Riverdeep, Inc. provides education and consumer software. It is a publisher of interactive products focusing on education and personal productivity for the consumer and school markets. The company was founded in 1995 and is headquartered in San Francisco, CA.

Education Media & Publishing Group Ltd. publishes and markets educational materials, trade and reference books and assessments for educators and students. It offers audio-visual aids, teachers' guides and resources, textbooks, workbooks, computer software, print and technology materials, curriculum-based supplemental learning resources and technology products and textbooks. The company is headquartered in New York, NY.

Rise Global Holdings Ltd. provides education solutions services. The company is headquartered in Dublin, Ireland.