As of May 9, 2005 Thomson & Thomson in North America combined with Compu-Mark in Europe and Brandy International in Japan to form Thomson CompuMark. See the press release. A little bit light on the facts, but as a client we did receive a more informative letter.
Thomson & Thomson are the people who brought us trademark search tools Saegis and Trademarkscan. The new Thomson CompuMark is a business owned by the ubiquitous Thomson Corporation.