A strong, unified voice through NSSGA is the best chance the aggregates industry has to make a difference. The most important business investment a producer can make is to join NSSGA.

NSSGA offers three types of memberships. To join, click on the one below that pertains to your company.

Aggregates Producer

Aggregates producers are any company that produces and/or sells aggregates in the United States.

Pulverized Minerals Producer

Members of the Pulverized Minerals Division represent manufacturers of finely ground (minus 100 mesh) limestone and other industrial minerals.

Supplier to the Industry

Companies that provide a product or service to the aggregates producer community.


NSSGA is the only group focused solely on the interests of the aggregates industry. Recognized as one of the most active and effective advocacy groups in Washington, D.C., NSSGA ensures that its members’ voices are being heard loud and clear on Capitol Hill.

NSSGA members have grown ROCKPAC into one of the nation’s premier political action committees. It is now ranked number 19 nationally. A PAC of this magnitude commands the attention of politicians not only in Washington, D.C., but also in congressional districts nationwide.


Like most industries, the aggregates industry depends on the know-how and productivity of its workforce. Unlike many industries, aggregates producers have to mix brains and brawn to produce the right products on a timely basis. The brawn can be handled with heavy equipment. The brains come from training and idea-sharing throughout the workforce. NSSGA facilitates that training with:

• AGG1 Aggregates Academy & Expo
• Monthly webinars on a variety of topics
• Professional training courses
• CONEXPO-CON/AGG education program

In a recent survey, more than 80% of members agreed that NSSGA is by far their primary source of industry information.


NSSGA adds significant value to company membership by:

• Holding annual governance and business meetings that bring together senior managers and owners from around the country to discuss common problems, opportunities and developments.
• Encouraging member involvement in areas of specific interest where they can make a positive impact on the industry.
• Creating an online, Internet-based closed social network called the Knowledge Center to enable employees of member companies to network and join in discussions and share best practices.

What has NSSGA done for you lately?

Achieved passage, with NSSGA grassroots and coalition partners, of “Moving Ahead for Process in the 21st Century” (MAP-21), a two-year surface transportation reauthorization that slightly increases funding for highways.
Advocated successfully with the U.S. Mine Safety and Health Administration to keep open the agency’s provision of compliance for small aggregates operators.
Achieved through the MSHA-NSSGA Alliance a rule clarification allowing operators to, in most cases, not be required to provide fall protection for work undertaken on working platforms fewer than six feet above the ground.