Greenstone provides environmental engineering and consulting services across Northern Ontario with offices in Sault Ste. Marie and North Bay. Greenstone is a privately owned firm consisting of a team of highly skilled environmental consultants and technicians with over a combined 50 years of experience in the engineering and environmental sector. Greenstone is dedicated and committed to providing exceptional consulting services to manage and address environmental challenges for our clients with practical and cost effective solutions. Greenstone focuses extensively in the environmental sector with specialization in Brownfield Land Redevelopment, Waste Management, Landfill Design and Monitoring, Phased Environmental Site Assessments, Risk Assessment, Land Use and Remediation. Greenstone is a licensed engineering firm with the Professional Engineers of Ontario (PEO).