The A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS) (Russian: Институт элементоорганических соединений Российской Академии Наук им. А.Н. Несмеянова (ИНЭОС РАН)) was founded in 1954 by a prominent scientist, the President of the USSR Academy of Sciences, academician A. N. Nesmeyanov (1899–1980), who was a "father" of the modern chemistry of organoelement and organometallic compounds. Major directions of research of the Institute are the following: Laboratories of Organoelement Profile, Laboratories of Polymer Profile, and Laboratories of Physical Profile. INEOS RAS is an internationally recognized research establishment, where the chemistry of organoelement and macromolecular compounds is developed. Its reputation as a scientific centre in chemistry is very high both in Russia and abroad. Many outstanding scientists who initiated new directions in organic and organoelement chemistry, polymer chemistry, physical chemistry, and physics, such as K.A. Andrianov, I.L. Knunyants, V.V. Korshak, I.V. Obreimov, M.E. Vol’pin, M.I. Kabachnik, O.A. Reutov, D.N. Kursanov, Yu.T. Struchkov, R.Kh. Freydlina, A.I .Kitaigorodsky, T.A. Mastryukova, M.Yu. Antipin and many others have been fruitfully working at INEOS RAS. At present INEOS RAS is a large research centre having ~660 employees with 564 scientific researchers of various levels. 77 Professors, holding Doctor of Science (Dr. Sci.) degree, and 248 researchers having PhD degree are actively working at the institute. INEOS RAS includes 34 laboratories and 11 research teams.