Mr Arno Mamasyan > Georgiev, Todorov & Co > Sofia, Bulgaria > Lawyer Profile

Georgiev, Todorov & Co
1000 SOFIA
Arno Mamasyan photo

Work Department

Corporate and Commercial, Dispute Resolution


Senior Partner

Main practice areas: Corporate and Commercial Law, Banking and Finance, Insurance Law, Real Estate and Construction


Arno Mamasyan joined Georgiev, Todorov & Co. Law Offices in 1996. He is a senior partner and specializes in Civil Litigation and Arbitration, Corporate and Commercial Law, Property Law, and Privatisation. He graduated from Sofia University, Faculty of Law. Prior to joining the law firm, he was the chief privatisation expert in the Ministry of Industry (currently Ministry of Economy) from 1993 to 1994. He has drafted a legal opinion for the legal status of the privatization in Bulgaria for the catalogue “Center for International Legal Studies”.

His practice includes participation in projects of the European Bank for Reconstruction and Development (EBRD), European Stability Mechanism, and the Bulgarian Telecommunication Company. He was a legal adviser of Sofia Municipality for the project for issuing eurobonds and prepared the due diligence report in relation to the privatization of Pharmachim Holding.

Arno has successfully advised clients in various fields, such as Gazprom, on their investment in a local company (Topenergy), as well as on their licensing regime, their gas imports and exports. He has also consulted clients such as Dundee Precious Metals, Chelopech Mining, AG Capital, Bulgarian Stock Exchange, Road Infrastructure Agency, International Asset Bank, Forton International, and many others. He has represented DSK Bank and AstraZeneca in various cases, as well as ENEL for the large project for the construction of the Thermal Power Plant Maritza East 3.

He is the current legal advisor of both private and public enterprises. In the field of corporate and commercial law, Arno consults Grand Energy Distribution, Heating Power Plants Ruse and Maritza 3, Black Peak Capital, Galchev Engineering, Borica, Ciela, and Hill Clinic. He is also the leading litigator in high profile matters for the Ministry of Agriculture and Food, Aurubis, Asarel Medet, Kornikom, Advance Properties, and Balkam Group.

He is listed in the Register of Industrial Property Representatives for Inventions, Utility Models and Trademarks.

Arno Mamasyan is an arbitrator in the court of Arbitration with the Confederation of Employers and Industrialists in Bulgaria (CEIB) since 2017.


He is fluent in English and his native Bulgarian.


Sofia Bar Association


Sofia University, Faculty of Law

Lawyer Rankings

Bulgaria > Energy and natural resources

Top-flight litigation firm Georgiev, Todorov & Co handles energy disputes of the highest level with sector expertise provided by Arno Mamasyan, Nikolay Lazarov and Mariya Derelieva. They act for both consumers and producers of energy, particularly electricity, with multiple cases before the Supreme Administrative Court. The team also advises on non-contentious energy-related matters, such as energy infrastructure and development projects. Senior associate Ivan Tserovski  joined the team from the Energy and Water Regulatory Commission where he was chief legal adviser.

Bulgaria > Banking, finance and capital markets

Boasting a significant following among banks, financial services suppliers and asset and wealth management firms, Georgiev, Todorov & Co advises on a broad range of transactions, regulatory and dispute resolution issues. Arno Mamasyan leads an expanding team, boosted by the promotion to partnership of Mariya Derelieva and Tsvetelina Dimitrova, and hire of senior associate Dobrina Pavlova  from Gugushev & Partners Law Office. Dimitrova, in particular, plays a key role in the practice and led advice to Alfred C. Toepfer International on the restructuring of its Bulgarian business.

Bulgaria > Dispute resolution

(Leading individuals)

Arno Mamasyan – Georgiev, Todorov & Co

Georgiev, Todorov & Co truly excels in dispute resolution, is noted for its ‘exceptional expertise in the field‘ and ‘innovative thinking for clients’ most challenging needs.’ The firm litigates at the highest level, with a busy caseload of arbitiration; it is acting for investment company Kornikom in its ICSID case against the Republic of Serbia, the first Bulgarian investor claim against a foreign state. Arbitrator Arno Mamasyan and firm managing partner Ivan Todorov steer a team of 14 ‘game changers’, which includes recently promoted partners Mariya Derelieva and Tsvetelina Dimitrova.