Marshall-Gruber Company LLC and its parent company RJ Marshall Company are members of the American Composites Manufacturers Association (ACMA).

ACMA logo

The ACMA is the composites industry’s largest trade group in the world. The American composites industry is made up of approximately 3,000 companies. In the U.S. it employs more than a half-million people in all 50 states and generates almost $70 billion in revenues annually. ACMA advocates for the interests of the composites community, proactively and positively affecting regulatory and legislative outcomes on a wide range of policy issues, including energy and environment, worker health/safety, trade policy and job creation. ACMA works to develop and expand markets for composite products in the U.S. and around the globe.