Client Sector Services

Ontario Environmental & Safety Network Ltd.
OESN specializes in providing consulting services in health & safety and industrial hygiene.  We are based in the Niagara Region but provide service across North America.  Our first year of business in 1996 saw four employees service approximately 20 clients.  With each passing year both our size and capability have grown. The OESN team currently has 12 full time employees to service over 150 clients annually.  Over the last ten years we averaged annual sales of 1.6 million dollars with projects ranging from $1200 to greater than $200,000.

At OESN, we provide our clients with experienced, trained professionals. Consultants are available 24-hours 7-days a week to consult in industrial hygiene and environmental services.  A 24-hour paging system is implemented within the organization to facilitate client needs.

OESN works for clients from the following sectors:

  • Institutional and Commercial Buildings
  • Hospitals and Health Care Facilities
  • Financial Institutions
  • Government
  • Department of National Defence
  • School Boards
  • Property Managers and Developers
  • Industrial Plants and Buildings
  • Colleges and Universities
  • General Contractors
  • Restoration Contractors
  • Marine Transport
  • Engineers
  • Architects
  • International Airports
  • Automotive Industry


We would like to express our pleasure in regards to the service quality that we have consistently received from OESN over the years. We have always appreciated the quick response that we get and the general way that they undertake their business is excellent. Their follow-up and reporting structure has assisted us in making safe and sound decisions for our employees in the work environment. We often find ourselves recommending them to others based upon the satisfaction that they provide us every time.
Ron Brushett

Quality Manager, Canada Steamship Lines, a division of The CSL Group

OESN provides timely response, especially when dealing with emergency and time sensitive matters… They are sensitive to heightened concerns and emotions, and effectively deliver the science of occupational hygiene in easy to understand terminology and concepts for the average layperson.
Judi Goldsworthy

Manager of Health & Safety, Halton District School Board

Ontario Environmental & Safety Network

Delivering excellence in Industrial Hygiene and Environmental Consulting Services