Fortune 1000 rank: 342
Best Companies rank: 82
No. of U.S. employees: 4,293
Most common salaried job (Avg. Pay):
Account Manager ($58,520)
What makes it so great? This IT product and service provider believes in lending a hand: Last summer CDW sent 80 "co-workers" to help in the Katrina cleanup, and last fall
they sent another 300 back to spend several days helping rebuild.