NATI (Russian: Научный автотракторный институт, romanized: Nauchnyj avtotraktornyj institut) was a manufacturer of motorcycles in the Soviet Union from 1931 -1933. It built the NATI-A-750, designed by Soviet engineer Pyotr Mozharov, prior to the transfer of manufacturing to Podolsk Mechanical Plant.

The date of foundation of the company is considered to be December 31, 1925.

• Research and development of promising tractor designs with high technical, economic, ergonomic and environmental characteristics.
• Creation of standard designs of new promising tractor units, assemblies and systems that ensure an increase in the technical level and technical and economic characteristics of machines.
• Industry-wide work on standardization and certification of tractor equipment.

The Institute has unique experimental equipment, automated stands, climate chambers, and has a highly qualified team of researchers and testers.

• "Entsiklopediya Mototsiklov. Firmi. Modeli. Konstruktsii.", Za Rulem, Moscow (2003). Энциклопедия Мотоциклов. Фирмы. Модели. Конструкции. - За Рулем - Москва (2003) p. 376-7 ISBN 5-85907-340-2