Кейзер__

This enterprise, Keizer, is a Belarusian company with various associations. The name appears to be of Dutch origin, translating to 'Cees Keizer'. There are records of a Dutch football player with this name. Furthermore, there is a document related to a C.P. Keizer, which includes authors such as T.E. Kabakova, Z.N. Rogacheva, and S.G. Halamov, focusing on solving tasks using mathematical software MathCad and Excel. Another document mentions a David de Keyser, an actor. Lastly, a company named 'Густав Кейзер Тренинг Восток' (Gustav Keizer Training East) is located in Minsk, offering training services worldwide. The nature of the enterprise is not clear without further information.