News 05 Dec. 2024
Partner Dr. Alexandra G. Maier Recognized Again in Lexology Client Choice Award 2025, Mining Experts Category 2025
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Event 23 Oct. 2024
Counsel Mohannad El Murtadi Suleiman to Speak at the 2nd Annual Africa Arbitration Day in New York
Event 18 Aug. 2023
Partner Borzu Sabahi Speaks at FDI Moot Shenzhen
News 25 Jul. 2023
Partner Eric Gilioli Ranked in Top 10 Influential Energy & Natural Resources Lawyers in Kazakhstan in Business Today
News 09 Apr. 2024
Curtis Announces New Partners and Counsels Across Offices in Spring 2024
Client Alert 28 Dec. 2023
U.S. to Impose Secondary Sanctions on Non-U.S. Banks For Financing Russia’s Defense Industry
Client Alert 21 Apr. 2025
Argentina’s Energy Sector: A New Chapter for Project Finance and Foreign Investment
News 04 Apr. 2025
Curtis Argentina recognized for its work on Viterra Limited's US$34 billion strategic merger
News 17 Jun. 2025
Curtis Announces Dual Promotion to Partner and Counsel in Dubai
News 02 Jun. 2025
Curtis advises Al Ain Farms on two strategic acquisitions, making it the largest integrated dairy and poultry producer in United Arab Emirates
News 24 Aug. 2023
Curtis Attorneys Quoted in CoinDesk on FTX Founder Sam Bankman-Fried’s Strategy Ahead of His Criminal Trial
Client Alert 10 Jul. 2024
EU Adopts New Restrictive Measures Against Belarus
Client Alert 26 Jun. 2024
The EU Adopts its 14th Sanctions Package Against Russia
client alert
Key Updates on the Taxation of Family Foundations in the UAE
event
Curtis' Muscat Office Hosts Seminar on Arbitral Awards in Oman
Partner
New York
P +1 212 696 8845
F +1 212 697 1559
Guillermo Ulke has extensive experience in structuring and negotiating major international transactions, including infrastructure projects, mergers and acquisitions, financings and joint ventures. He also advises sovereign clients in commercial arbitration and investment disputes.
Mr. Ulke’s experience in law, business and finance enables him to provide creative and effective strategic advice on complex international transactions, projects and disputes.
He has represented states and state-owned entities in a number of major infrastructure projects, commercial transactions and arbitration disputes, particularly in the energy and transportation sectors. He has led many negotiations of project arrangements, joint ventures, financings, acquisitions and other transactions between states and major international oil and gas companies, and has assisted public and private sector clients in the development of landmark projects in the electricity sector. He has also successfully led multiple negotiations of settlement agreements to resolve large investment and commercial disputes.
Mr. Ulke has also advised clients operating in a variety of other economic sectors, including banking, venture capital, technology, agriculture, mining and manufacturing, on a range of transactional, regulatory and dispute resolution matters.
Prior to joining Curtis in New York, he practiced law and managed business ventures in Argentina, where he also taught economic and financial analysis at the School of Law of the University of Buenos Aires.
Mr. Ulke holds degrees in law and in economics and business administration. He is admitted in New York and Buenos Aires.
Spanish
English
Energy (Oil & Gas)
Infrastructure Development
Banking and Finance
Mergers and Acquisitions
Sovereign Representation
Economic Sanctions
International Arbitration
Commercial Disputes - Arbitration
News 18 Jun. 2024
Curtis Lawyers recognized across several practices in latest Legal 500 USA 2024 Edition
News 08 Jun. 2023
Clients Praise Curtis in Newly Released Legal 500 USA 2023