[2] EducationCity is a developer and publisher of online educational learning with offices in Chicago, USA and Rutland, UK.

[3] Study Island was founded in May 2000 by Cam Chalmers and Dave Muzzo, originally providing tools related to the Ohio Proficiency Test Program.

By 2002, Study Island had expanded to four states, Ohio, North Carolina, New York, and Michigan and serviced 180 schools.

Continuing its rapid growth plan, Study Island, which moved its offices to Dallas, Texas added six states in 2003 and expanded its coverage to 750 schools.

[5] In November 2009, Archipelago Learning launched a $75 million initial public offering on the NASDAQ under the symbol "ARCL".