What is the name of the largest residential building materials purchasing company in the United States?

Pult Housing Company ranks first among the four major real estate developers in the United States. In 2003, Pult's business covered 48 cities in 27 states, and 70 projects were under construction. This year, Bolt * * * sold more than 30,000 houses, achieving sales of $9 billion. In the global housing enterprises, Pult has been recognized as a veritable benchmark company.