Ontario Construction News staff writer
After years of leadership and service to Ontario’s cement, road building and aggregate industries, Ontario Stone, Sand & Gravel Association (OSSGA) Executive Director Mike McSweeney will conclude his time with the association effective today (Nov. 14).
“Mike has made an indelible impact on OSSGA by strengthening the industry’s standing with government and developing a strategy that will protect and guide our industry for years to come,” said OSSGA Chair John MacKay. “Beyond Mike’s professional achievements for OSSGA, he has been a friend, mentor and a source of wisdom to me personally. It has been a privilege to work alongside Mike, and I’m grateful for the time and lessons he has shared.”
Since joining OSSGA in 2023, McSweeney has led initiatives to raise awareness of the critical role aggregates play in Ontario’s construction supply chain and to modernize the association’s outreach efforts. Under his direction, OSSGA enhanced its advocacy at Queen’s Park and with municipalities, while implementing a new communications and branding strategy.
“It has been an honour to work with OSSGA’s dedicated board of directors and talented team over the past two years,” McSweeney said. “Together, we have advanced a successful strategy that highlights the essential role stone, sand and gravel play in Ontario’s construction supply chain, while rebranding and refocusing our efforts at Queen’s Park and with municipalities.
“With strong leadership, new team members and a clear path forward, I am confident OSSGA is well-positioned to continue this important work.”
On behalf of the board, MacKay extended appreciation to McSweeney for his outstanding commitment and contributions to the aggregate industry, inviting OSSGA members to join in wishing him continued success and happiness in the years ahead.

