OSS is proud to be a part of the Jim Pattison Group of companies. The Jim Pattison Group is broadly based across the automotive, media, packaging, food sales and distribution, magazine distribution, entertainment, export and financial industries and is the second-largest private company in Canada. We operate in a dynamic Shared Services environment and our core business is to provide effective, timely and efficient accounting and back room services to organizations within the Jim Pattison Group as well as privately owned businesses.