Founded in 1987 by Dr. Sheldon Elman, Medisys Health Group was created through the amalgamation of four Montreal-based corporate health service providers.  Soon thereafter, Medisys expanded its service offerings to metropolitan Toronto, as well as to insurance companies throughout Quebec and Ontario.  Operations in Calgary and Vancouver were swift to follow with Medisys’ acquisition of Laurentian Health Services Ltd. in 1991.

In 1998, Medisys positioned itself as one of Canada’s largest service providers to life insurance companies, acquiring the Insurance Medical Services division of MDS.  An international health and life sciences company, MDS would provide Medisys with laboratory testing and proteomics-enabled drug discovery.  

April of the following year marked another milestone in the company’s development as Medisys’ Corporate Headquarters in Montreal received its ISO 9001 certification (H.O.), an internationally recognized quality assurance standard.  To the best of the company’s knowledge, Medisys is the sole ISO-9001 certified (H.O.) national provider of corporate healthcare services.

In late 2002, the next stage in Medisys’ evolution began as the company started trading on the Toronto Stock Exchange. The revenue generated by this IPO allowed the company to strengthen its medical imaging capabilities with several key acquisitions, including the installation of MRI and CT capabilities in Montreal.

In 2003, the acquisition of Toronto’s Edward Street X-Ray Limited, a 30,000 square-foot, state-of-the-art medical imaging facility, transformed Medisys into a full-service medical imaging provider.  Gammatech Nuclear Imaging, an Ontario leader in nuclear medicine services, and Guelph Imaging, the largest provider of ultrasound, X-ray, mammography, nuclear medicine and bone mineral densitometry joined Medisys in 2004.  With the addition of these first-rate facilities, Medisys enhanced its capacity to offer a comprehensive range of medical imaging services from a variety of locations. The acquisitions of A.T.R. Laboratories, a leading provider of ultrasound services, Toronto Radiologists’ Services, Niagara Diagnostic Imaging and Imatech have further enhanced Medisys’ ability to provide a comprehensive suite of sophisticated preventive and diagnostic procedures.

In order to expand its presence in the independent assessment market, Medisys acquired FAIR Medicals and Merit Assessments in 2005. These additions have bolstered Medisys’ roster of physicians, enhanced its geographic service capacity and broadened its area of expertise.

In late 2005, Medisys entered into a strategic alliance with Sun Life Financial’s Canadian Group Benefits division. Together, the two companies offer a distinct, integrated solution to customers who require attendance support for their salary continuance sick-leave plans.  With this alliance, Medisys became Sun Life Financial’s preferred provider of these services.

Most recently, Medisys’ presence in the Executive Health services market has been strengthened by the acquisition of MDS’ Executive Health division and of Capstone Medical Services Inc.