Three international giants now own matter management systems for law departments. Since ThomsonReuters has acquired Serengeti, the alpha males of the legal industry can duke it out. From a different standpoint, the field of major players in the legal industry who offer matter management software is fuller. Wolters Kluwer came first when it bought TyMetrix and added it to the CT group. Reed Elsevier, owner of LexisNexis and much else law-related, acquired CounselLink and Examen.
Since each of Thomson Reuters, Wolters Kluwer and Reed Elsevier roam the globe widely, we can confidently predict that their respective software packages will also spread internationally.
By contrast, so many of the competing vendors are private and comparatively puny (See my post of Feb. 15, 2011: estimate that 90% of U.S. legal service providers have less than $50 million revenue.).