Greystone Energy Systems Inc.

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Greystone Energy Systems Inc. is internationally recognized as one of the largest ISO registered manufacturers of HVAC sensors and transmitters for Building Automation Management Systems. They have conscientiously established a worldwide reputation as an industry leader by maintaining leading-edge design technology, prompt technical support, and a commitment to on-time deliveries.

The company’s vision is to design and manufacture a wide range of products for sensing measurement and transmittal of data related to temperature, humidity, pressure, current, air quality, and hazardous gases. This vision is being realized through their rigid adherence to quality standards, the efficient service they offer their customers, the genuine pride we take in their work.
International Sales and Service
having started in Canada, they successfully penetrated this market in their first four years of operation. In 1987, they launched their marketing campaign into the United States. Their focus expanded in 1989 when they moved into the Southeast Asia market, and again in 1998 moving into Europe and the Middle East.

ISO9001 Certified Quality Assurance

They have conscientiously established a reputation as a manufacturer dedicated to maintaining an exemplary adherence to Quality Management Standards.

As an ISO 9000-registered manufacturer with 9001 certification for over 20 years, they are able to meet stringent quality standards throughout their organization, and demand the same from our suppliers.

To achieve registration, they have implemented a comprehensive Quality Management System, and are audited annually by an independent outside agency. This certification system provides tangible evidence of product reliability and conformity with our customers’ requirements.


Jeff Foster

Greystone Energy Systems, Inc

[email protected]