Quarries Trade Associations

National Stone, Sand & Gravel Association (NSSGA)

The industry’s primary U.S. voice for aggregates policy, safety, and sustainability; represents producers and suppliers nationwide and convenes advocacy, technical, and networking programs.

https://www.nssga.org Membership: 500

Pennsylvania Aggregates & Concrete Association (PACA)

Statewide association for Pennsylvania’s aggregates, ready-mix, and cement sectors; provides advocacy, training, and member programs across the Commonwealth.

https://www.pacaweb.org Membership: 200

Ohio Aggregates & Industrial Minerals Association (OAIMA)

Represents Ohio’s aggregates and industrial minerals producers and suppliers; offers advocacy, safety training, and member services.

https://ohioaglime.org Membership: 200

Ontario Stone, Sand & Gravel Association (OSSGA)

Ontario’s province‑wide association for stone, sand, and gravel producers and suppliers; focuses on advocacy, education, and sustainability.

https://www.ossga.com Membership: 280

Alberta Sand & Gravel Association (ASGA)

Alberta’s industry voice for sand and gravel; advances responsible resource development, advocacy, and member networking.

https://www.asga.ab.ca Membership: 200

Mineral Products Association (MPA)

The UK’s umbrella association for aggregates and other mineral products, representing the vast majority of producers across 16 product groups.

https://www.mineralproducts.org Membership: 520

Mineral Products Association Northern Ireland (MPANI)

Northern Ireland’s top trade association for quarrying and mineral products (formerly QPANI); represents producers of aggregates, asphalt, concrete, and related materials.

https://mpani.org Membership: 87

British Aggregates Association (BAA)

Independent UK voice of SME quarry operators, providing H&S, planning, transport, and regulatory support to members.

https://british-aggregates.co.uk Membership: 70

Union Nationale des Producteurs de Granulats (UNPG)

France’s national union of aggregate producers, representing companies across alluvials, hard rock, marine, and recycled aggregates.

https://www.unpg.fr Membership: 900

Cement, Concrete & Aggregates Australia (CCAA)

Australia’s peak body for heavy construction materials (cement, concrete, aggregates); provides standards, advocacy, and technical resources.

https://www.ccaa.com.au Membership: 70

California Construction & Industrial Materials Association (CalCIMA)

California’s statewide advocacy voice for aggregates, ready‑mix, asphalt, and industrial minerals producers, with extensive compliance and training programs.

https://www.calcima.org Membership: 70

Oregon Concrete & Aggregate Producers Association (OCAPA)

Oregon’s statewide association for concrete and aggregate producers and suppliers; drives government affairs, education, and industry programs.

https://ocapa.net Membership: 123

Indiana Mineral Aggregates Association (IMAA)

Indiana’s trade association for crushed stone, sand & gravel, and slag producers; membership includes producer and associate companies (figure shown reflects 2015 public data).

https://www.indmaa.org Membership: 143

Kentucky Crushed Stone Association (KCSA)

State association promoting Kentucky’s aggregates industry through advocacy, education, and safety initiatives.

https://www.kycsa.org Membership: 100

Aggregate & Ready Mix Association of Minnesota (ARM of MN)

Minnesota’s association for aggregate and ready‑mix companies and suppliers; delivers advocacy, training, and networking statewide.

https://www.armofmn.com Membership: 325

Natural Stone Institute (NSI)

Global trade association for the natural stone industry (including quarriers); provides technical standards, education, advocacy, and promotion.

https://www.naturalstoneinstitute.org Membership: 2,000

Institute of Quarrying (IQ)

International professional body for quarrying and allied extractives; supports professional development and operational best practice worldwide.

https://www.quarrying.org Membership: 5,200

Institute of Quarrying Australia (IQA)

Australia’s professional institute for quarrying and essential construction materials, connected to the global IQ network; delivers CPD, safety, and industry leadership.

https://www.quarry.com.au Membership: 1,700

Aggregate & Quarry Association (AQA) New Zealand

New Zealand’s national association for aggregate and limestone producers; engages on policy, planning, H&S, and industry promotion.

https://aqa.org.nz Membership: 80

Aggregate & Sand Producers Association of Southern Africa (ASPASA)

Southern Africa’s association for aggregate and sand producers; provides H&S, environmental compliance, and advocacy for formal quarry operations.

https://www.aspasa.co.za Membership: 70