Tatev has more than 3 years of experience as a practicing lawyer. Her experience includes service in the RA State Revenue Committee. During her service, she executed the defense of the RA State Revenue Committee in the courts of the Republic of Armenia. Hence, by joining Sigma Law firm she aims to use all her knowledge and experience she gained for the benefit of our clients.
In 2021 Rafik Grigoryan launched the ''Sigma Law'' firm aiming at using his experience and knowledge to protect the rights of individuals. With the establishment of Sigma Law Office, a new stage begins, to be active in the field of both private and public law, aiming to contribute to the improvement of the state-legal system of Armenia, the development of legal regulations of the economy.