Elberton Granite Association 
Trade association of granite quarriers and manufacturers in the United States. Includes a membership directory, granite facts and a granite museum .
http://www.egaonline.com/Indiana Limestone Institute of America
Serves the construction industry as a coordinating agency for the dissemination of accurate, unbiased information on limestone standards, recommended practices, grades, colors, finishes, and all technical data required for specifying, detailing, fabricating and erecting Indiana Limestone.
http://www.iliai.com
Marble Institute of America
Promote the use of natural stone and provide a source of information on the standards of workmanship and practice and suitable application of stone products.
http://www.marble-institute.com/
National Building Granite Quarries Association, Inc.
Information on architectural granite quarrying and uses. Promoting excellent granite production and marketing.
http://www.nbgqa.com/
The Canadian Stone Association
Sponsor and conduct activities and events aimed at promoting its members' products and services while facilitating the exchange of information concerning the stone industry.
http://www.stone.ca/
ACIMM - ANAMP
Stone, marble, machines and building products, import/export staisticts, fairs. ACIMM and ANAMP - Italian associations of marble and stone machineries.
http://www.techstone.it
British Aggregates Association
Represents quarry owners in the aggregates and minerals industry offering advice and lobbying parliament on aggregates levy, road haulage industry and minerals waste. Includes members directory, publications, news and events.
http://www.british-aggregates.co.uk/
