Who We Are

Five generations of success.

What started in 1887 as a modest, single cut stone quarry has evolved into today’s multi-divisional diversified enterprise.

With over 1200 employees working across North America, Walker is the product of strong family heritage, driven by the rich and diverse history of the businesses it has developed, grown and acquired over the past century. Passed down through five generations of the Walker family, the company has remained committed to doing the right thing for employees, customers, the environment and the communities we are proud to call home. It is the Walker way.

The Walker group of companies has evolved over the years through a commitment to innovation. Transforming problems into opportunities has enabled Walker to move beyond its humble beginnings into the complex solutions-based company it is today.

Our divisions

AGGREGATES & CONSTRUCTION

Supplying the materials and services necessary to build and strengthen Ontario’s infrastructure through Walker Aggregates and its subsidiaries Norjohn Contracting and Harold Sutherland Construction.

ENVIRONMENTAL

Providing critical services and infrastructure for communities to manage waste, recover resources and contribute to a circular economy through Walker Waste Services, Walker Organics Recovery and product brands N-Rich®, All Treat Farms® and Gro-Bark®.

EMULSIONS

Using advanced chemistries and technologies, Walker Emulsions creates innovative and sustainable wax and asphalt emulsions used across a wide array of manufacturing and construction applications including road building and resurfacing, wood and forest products, insulation, food packaging and more.