Peroni Sosa Tellechea Burt & Narvaja (“PSTBN”) is one of the largest and most prestigious firms in Paraguay. Founded in 1968, the firm’s reputation stems from its commitment to serving the needs of clients in diversified areas of specialization.

Over the last five decades PSTBN has been a leader in legal innovation in Paraguay. It has published important legal reference books and has taken an active role in supporting university education. The Firm has worked closely with Congress to draft and enact new legislation and has advised several administrations on development strategies.

PSTBN offers a full spectrum of services for clients involved in international and local transactions in Paraguay, including mergers and acquisitions, corporate compliance, maritime, aviation, telecommunications, banking and international finance, mineral and oil exploration, labor relations, civil litigation, taxation, relations with government agencies and maquila projects. Litigation in courts and with government regulatory agencies is an important activity, where PSTBN has represented clients in landmark cases. PSTBN's IP Department, supported by the latest technology, covers every aspect of trademark, copyright and patent practice and commercial use within Paraguay by foreign and local companies.

PSTBN has constantly been in the top tier of Paraguayan law firms and was recognized as “Paraguayan Law Firm of the Year” 2009, 2012 and 2014 by Chambers Latin American Awards for Excellence.