A number of DPC's clients include successful companies who make a significant contribution to Brazil's GDP, including those involved in the oil and gas, telecommunications, mining, energy, and the information technology industries.

The firm was formed in Rio de Janeiro by the Portuguese immigrant Manuel Domingues with a specific business model that relied on technical excellence and the raw talent of its employees for its success.

This model helped to build the company's profile to become attractive to foreign investors as well, and it is extremely useful and apt to helping foreigners properly file Brazilian tax returns.