We are the custom precision manufacturing shops in the United States. Many NTMA members are small businesses, privately owned and operated. Our industry generates sales in excess of $40 billion a year. Our nearly 2000 members design and manufacture special tools, dies, jigs, fixtures, gages, special machines, and precision machined parts, either for customers or for themselves. Some firms specialize in experimental research and development work. If you fit this category, you need to join NTMA.