• M&R Industrial Services Limited
  • Mackie Moving Systems
  • Magna Corporation
  • Mahle Engine Components Canada Inc
  • MAHLE Filter Systems Canada, ULC
  • Manitoulin Transport
  • Mann + Hummel USA, Inc.
  • Manz Contracting Services Inc.
  • Marathon Oil Company
  • Marathon Petroleum LP
  • Marcom Group
  • Maritz Canada Inc.
  • Martinrea Fabco Metallic
  • Martinrea International Inc.
  • McCarthy Tetrault/MT Services
  • McMillan LLP
  • McTague Law Firm LLP
  • Meda Limited
  • Medar/Welding Technologies Corp. (WTC)
  • Medvantage Inc.
  • Melvin Orr Trucking
  • Mercedes-Benz
  • Merchants Paper Company
  • Merck Frosst
  • Mercury Products Co.
  • Meridian Automotive Systems
  • Meridian Lightweight Technologies Inc
  • Meridian Magnesium Products Div
  • Meritor Automotive Inc.
  • Meritor Susp Sys Co-Milton
  • Metal Systems
  • Metaldyne
  • Metro Inc.
  • Michelin North America (Canada) Inc.
  • Microserv
  • Miller Thomson LLP
  • Miller Thomson Pouliot LLP
  • Millward Brown Canada
  • Mitchell Plastics
  • Mitel
  • Mitsubishi Fuso Truck of America (Canada)
  • Moen Inc.
  • Molson Canada
  • Momentum Advanced Solutions Inc
  • Moore Wallace Inc
  • Mosaic Canada
  • Motion Canada
  • Motion Industries (Canada) Inc.
  • MPL Freight Services Inc.
  • MSSC
  • Mullen Group Ltd.
  • Multimatic Inc.
  • Musashi Autoparts CA Inc.