About Us

We help companies monitor and reduce emissions, throughout the USA, Canada and beyond.

more than


sites serviced



years of experience

work across



Our Experience

CEMSI was incorporated in 1992 and is an Authorized Solutions Provider for ABB.

For over 25 years, we have worked with customers across diverse industries to provide consulting, integration design, manufacturing, service, repairs and on-site performance certification testing. We take pride in our strong track record and long list of repeat customers.

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Our Process

Our Process

No two measurement sources are alike, so we provide application-specific integration and design.

Drawing on decades of experience, our team supplies monitoring systems integrated with any type, make or model of analyzer, along with sample transport and conditioning components. Our systems can be designed for either process control or regulatory compliance, with complete on-site product support.

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Our Partners

We believe in working with others to maximize value for all. We are proud of our strong relationships with numerous industry leaders in the emissions monitoring and process analytics space.

ISO 9001:2015

We are committed to ensuring our products consistently meet our customers’ needs, as well as applicable statutory and regulatory requirements. Our ISO 9001:2015 certification acknowledges our robust quality management system as we strive for continuous improvement.

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Our Charitable Donations

We believe that being a good business partner and being a good community member go hand in hand. The following are some of the causes that CEMSI has proudly supported over the years.

London Unemployment Help Centre
London Health Sciences Foundation
Canadian Tire JumpStart
United Way Stair Climb Campaign
Children’s Health Foundation
Rotary Club of London
Kidney Foundation
St. Joseph’s Hospice – Sarnia Lambton
United Way
Canadian Cancer Society
Habitat for Humanity
Heart and Stroke Foundation
SAR British Columbia
Bluewater Health Foundation

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