R. Araguari, 817 - 7 andar - conj. 76 - Moema
04514-041 São Paulo
Display phone number 11 5090-6020
Osório Accioly Gatto
Rosana Akemi Murakami
Paulo Trivoli Neto


About to complete 30 years of activity, MERCATTO became a benchmark in services of engineering expertise, with presence in the main brazilian centers of conciliation, mediation and arbitration.

It also acts in equity and economic valuations, in which companies of important segments, such as banking, insurance, energy, logistics, health, telecommunications, sugar and alcohol, food, civil construction and industrial transformation, are part of its client portfolio.

MERCATTO has a multidisciplinary team composed by engineers, administrators and accountants, committed and qualified professionals who privilege excellence and ethics in the development of their services.

All the work developed and methodologies adopted in the company are based on the norms and procedures used and recognized by Brazilian and foreign legislation, in bodies such as IFRS, IVS,ABNT, USPAP, among others.

The CEO, engineer and master in economics OSORIO ACCIOLY GATTO, has also an expressive institutional and academic career. Former president of IBAPE and vice-president of the UPAV, brazilian and pan american institutes for expertise and valuation, he was one of the main rapporteur of the ABNT Standard 14.653 Valuation of assets, parts 4 (real estate projects) and 5 (machinery, equipment and industrial assessments), having teached for two decades in several graduate courses.


  • Engineering expertise

  • Economic valuations of projects or intangibles

  • Engineering technical assistance

  • Patrimonial assessments

  • Claims

  • Valuation of assets for various purposes

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