The company grew to become one of the largest vertically integrated agricultural holdings in Russia, working in four business segments:[3] In 2011, Rosagro Plc.

(main holding company of the Rusagro Group) conducted an IPO on the London Stock Exchange, raising approximately $300 million.

[6] Upon entering the real estate sector, Mashtab hired McKinsey & Company to study the world's most successful cities.

These studies resulted in a development plan which, in a break with typical post-Soviet practice, aims to create an urban space that provides not only new residential blocks, but also ample social and transport infrastructure, and to facilitate local job creation in line with global best practice.

[10][11] He is also a donor and a member of the Board of Trustees of the Jewish Museum and Tolerance Center in Moscow.