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Who's Who Legal
Who's Who Legal
Thought Leaders

Thought Leaders

Thought Leader

Global Leader

WWL Ranking: Recommended

Peers and clients say

"Sirshar’s support and level of service is outstanding"
"Even under time pressure and facing challenging deadlines, Sirshar and his team manage to provide us and the client with valuable expert input"
"We are particularly impressed by his thorough approach"
"He's simply brilliant"
"We won most of our quantum damages in large part thanks to him"


Sirshar leads PwC’s Dispute Advisory Center of Excellence in CEE, Russia and the CIS. He has 27 years of experience which covers many aspects of accounting and financial matters, including loss of profits claims, construction claims, claims arising following acquisitions and sales of businesses, insurance claims, fraud prevention, integrity due diligence and financial investigation. He has prepared many expert reports for local arbitration, courts and for international arbitration cases involving issues in Belarus, Bosnia, Bulgaria, Croatia, Czech Republic, Georgia, Slovakia, Kazakhstan, Hungary, Romania, Kosovo, Serbia, Macedonia, Poland, Russia and Turkmenistan. He has been instructed to act as an expert on behalf of claimants, respondents, the prosecutor's office and for Tribunals; has been involved in commercial and investor-state disputes and in criminal proceedings; and has been asked to act as an expert determinant on share purchase agreement disputes. Sirshar regularly testifies in international arbitration cases having testified in London, Paris, Bucharest, Belgrade, the Hague, Zagreb and Washington DC and has been instructed by many of the top international law firms.

Sirshar is a regular speaker at International Arbitration conferences on the topic of damages; is a member of the Institute of Chartered Accountants in England and Wales (ICAEW).

The PwC Dispute Advisory Center of Excellence was set to co-ordinate efforts of the 12,000 Partners and staff across CEE and CIS region; and globally to ensure consistent high quality of dispute related services to ultimately offer a “one-stop-shop”.

WWL Ranking: Recommended
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