National Association of Manufacturers - NAM
"The mission of the National Association of Manufacturers (NAM) is to be the voice for all manufacturing in the United States. The NAM is the largest manufacturing association in the United States, representing small and large manufacturers in every sector and in all 50 states. Manufacturing employs nearly 12 million men and women, contributes more than $1.8 trillion to the US economy annually, has the largest economic impact of any major sector and accounts for the lion's share of private-sector research and development.