There are two well established high voltage microscopy laboratories in Europe, several new installations and a few experimental instruments still in the development stage. The latest information about each of these projects will be presented.C.N.R.S. Laboratory, Toulouse, France: The 3 MV microscope is in operation. In initial tests, micrographs of 5 μm stainless steel have been obtained at 2 MV. The HV generator and the lens current systems have been described, as well as the microscope itself. Many studies, mainly of physical aspects of high voltage microscopy, have been made with the 1.5 MV instrument.Cavendish Laboratory, Cambridge, England: A great variety of research projects are under investigation on the “home-built” 750 kV microscope, in biology as well as in metallurgy and polymer science. Quantitative studies have been made of energy loss in typical materials, and of the sensitivity and resolution of viewing screens and photographic emulsions. Special stages and other apparatus have been developed.