Complex sentence: The company was founded in 1956, and as of 2011 it has about 278 employees and 13,200 contracted independent agents and operates in 49 US states.
Split into simpler sentences: The company was founded in 1956, and as of 2011 it has about 278 employees and 13,200 contracted independent agents. As of 2011 it operates in 49 US states.