There’s yet another brand name in the Canadian media management business. WPP Group agencies J. Walter Thompson, Enterprise Creative Selling and Ogilvy & Mather have combined their media departments to form MindShare Canada, a company with $340 million in client billings.

The three Canadian agencies have been working together unofficially for several years.

Karen Nayler, former head of the JWT-Enterprise media operation, has been named managing director of MindShare.

Also falling under the MindShare banner are ATG and MCI Research Groups, as well as the specialized media units MindShare Direct and MindShare Digital. In addition, MindShare Canada has launched Excelerator Media, a small full-service media shop that will work with clients in fast-moving market sectors.

U.K.-based WPP introduced MindShare into Asian and European markets in September 1997. The brand was rolled out in the U.S. last fall.

MindShare Canada clients include IBM, Kraft, Kodak, Merrill Lynch, Midas, Jaguar, Mattel and Kimberly-Clark.