Upcoming Events

Tuesday, August 13, 2024 OSSGA Quality Control Training - IN PERSON
Wednesday, August 14, 2024 OSSGA Common Core Training : ONLINE
Wednesday, September 25, 2024 OSSGA Operations Tour
Monday, September 30, 2024 OSSGA Common Core Training - INPERSON
Wednesday, October 16, 2024 OSSGA Enviornmental Workshop

Mark your calendar!  Workshop and registration information will be available in August.

Join Us

OSSGA brings together, in one organization, aggregate producers; industry suppliers of heavy machinery and automated systems; manufacturers and dealers; environmental consultants; planning consultants; lawyers; engineers; researchers; landscape architects; contractors; educators, and other companies and individuals associated with the aggregate industry. 

We are the voice voice aggregate.  Collectively, our members supply a significant majority of the approximately 164 million tonnes of aggregate consumed annually in the province.

Help us be an even stronger advocate by adding your voice to the conversation.  Join OSSGA today!

View OSSGA's membership brochure here

To download an application form, please click on one of the links below:



For more information, please contact Eva Da Silva at 905-507-0711.

Membership Benefits

Membership with OSSGA entitles you and your company to many benefits, including:

Advocacy:  Protecting and promoting the industry

The aggregate industry is one of the most highly regulated in Ontario.  More than 25 pieces of legislation ensure the protection of people, the natural environment and future resources.  OSSGA works closely with all levels of government to ensure effective legislation and regulation.  Examples include:
  • Land Use Planning -- participation in the review of the Provincial Plans, Aggregate Resources Act, and Provincial Policy Statement
  • Compliance requirements under the Endangered Species Act
  • Regular specifications meetings with the Ministry of Transportation
  • Monitoring and participation in Municipal Official Plans, by-laws and regulations
As an OSSGA member you receive regular notification of new government regulations or changes to existing regulations affecting the industry.  You also have access to professional advice regarding regulations, licensing, government affairs, health and safety and environmental issues.
There's strength in numbers!  On specific issues, the Association acts as a hub, allowing members to pool their resources to protect against unfair local or regional decisions, OMB hearings or municipal plan amendments.  Add your voice to help us be even stronger.

Leading Edge Education

OSSGA is committed to ensuring you and your employees possess the skills and knowledge to meet the challenges of the future through our outstanding educational programs.

Networking Opportunities

OSSGA provides many opportunities to make valuable professional and social contacts at our seminars and workshops as well as the Association's Annual General Meeting, golf tournament, baseball tournament, ski day, and other social events.

Perceptive Leadership

Members have a wealth of opportunity to make a difference in the association and the industry by joining and participating in OSSGA Committees and our Board of Directors.

Member Recognition

Each year OSSGA recognizes aggregate industry leaders and their commitment to excellence through several prominent award programs, including Property Enhancement Award, Progressive Rehabilitation Award, Outstanding Achievement in Property Award, Community Relations Award, Award of Excellence, Bronze Plaque Award, Individual Safety Awards, Corporate Safety Awards.

Solid Industry Research

OSSGA is your reliable source for industry research and information, such as province-wide trends; recycling, and industry outlook.

Informative Publications

OSSGA offers a full range of industry related publications and videos.


Two free issues of Avenues, the association's industry magazine, sourcing new vehicles of understanding, such as greener gravel and sustainability of the aggregate industry.

Rock Talk

A weekly e-bulletin featuring current news and trends within the industry, association activities, and events.


Provides breaking news for information affecting the industry that needs to get into your hands quickly.

Membership Source Book

Members receive a free copy of OSSGA's award winning Commercial Membership and Aggregate Directory, annually, which references OSSGA members as well as their products and services.

OSSGA Insurance Program

Cowan Insurance Brokers in conjunction with the Ontario Stone, Sand & Gravel Association (OSSGA) have developed a comprehensive program to fully address the insurance and risk management needs of aggregate producers. See details here.