Founded in 1997, Haights Cross Communications is a premier educational publishing group dedicated to creating the finest books, audio products, periodicals, software and online services, serving the following markets: K-12 supplemental education, public and school library publishing,and audiobooks.

Buckle Down Publishing creates state-customized workbooks and practice tests to help students in Grades 2-12 prepare for state assessment programs. The materials provide educators with a complete program, including alignment with state standards and test-formatted practice.

Options Publishing is a leading supplemental education provider of K-8 reading and math intervention products. Options’ materials are research-based and support state standards while providing well-structured and easy to implement curriculum, with the end goal of bringing struggling students up to grade level. Options Publishing also has locations in Austin, TX and Northborough, MA.

The world's largest independent publisher of unabridged audiobooks, since 1979, provides unabridged audiobooks on cassette, CD and MP-3 formats for consumers, libraries and schools.

Triumph Learning provides a "total solution" for teachers preparing students for norm referenced and criterion referenced state and national exams. The products are designed to help students master the skills to succeed on these high-stake tests.