IANA (Intermodal Association of North America) is the face — and voice — of the intermodal freight community.

The Raiolway Tie Association provides the forum and direction for the continual improvement in the life-cycle of the engineered wood crosstie system.

ASLRRA (American Short Line and Regional Railroad Association) proudly represents the entrepreneurial owners and operators of short line and regional railroads throughout North America. These approximately 600 small businesses play a vital role in the hub-and-spoke transportation network, often providing the first-mile/last-mile connection between farmers and manufacturers and the ultimate consumer.

AREMA (American Railway Engineering and Maintnance-of-way Association) mission is the development and advancement of both technical and practical knowledge and recommended practices pertaining to the design, construction and maintenance of railway infrastructure.

REMSA (Railway Engineering-Maintenance Suppliers Association) is a non-profit membership-based organization located in Washington, D.C. that represents and promotes companies and individuals who manufacture or sell products and/or services in the railroad maintenance-of-way industry.