In 1995, he became the owner and president of Mūsa Motors Moscow, which was the official Russian dealer for Volvo, Jaguar, Land Rover, Renault, Mercedes, Chrysler, Jeep, Dodge, BMW, Mini and Rolls-Royce.

The foundation supports culture initiatives – the completion of the restoration of Rundāle Palace, the Riga Russian Theatre, the Latvian Academy of Music and others.

In 2012, as patrons Boris and Ināra Teterev donated the artwork Gondola by Russian artist Dmitri Gutov to the Art Museum Riga Bourse.

[10] Within the framework of their higher education excellence programme, the Boris and Ināra Teterev Foundation actively cooperates with the Riga Stradiņš University, which has established the patron Boris Teterev’s scholarship to medical students, awards grants for research and the Academy of Intelligence,[11] and has created the framework for the RSU development strategy 2012 – 2020.

Teterevi has supported the arrangement of the infrastructure of the territory of the Botanical Garden of the University of Latvia following modern requirements, donating more than 1.4 million euros.