Foreign-incorporated companies that provide architecture and urbanism services must incorporate or establish a partnership with a locally-incporated architecture company. In addition, the partnership is only allowed based on reciprocity, this is, if the country where the foreign company is established allows a partnership with Brazilian companies in equal terms.
"Art. 10. Architects and urban planners, together with other professionals, may meet in a society providing architecture and urbanism services, under the terms of the rules of private law, of this Law and of the General Regulations of CAU/BR [Council of Architecture and Urbanism of Brazil].[...]" (Law No. 12,378 on Architecture and Urbanism (31 December 2010), Article 10 [google translation])
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"Art. 1 This Resolution establishes the procedures for the temporary registration and cancellation of the registration of a foreign legal entity in the Councils of Architecture and Urban Planning of the States and the Federal District (CAU/UF), upon constitution of a personified company with a Brazilian legal entity previously registered in the CAU.
§ 1 The application for registration of the personified company mentioned in the caput must be accompanied by the authorization of the foreign legal entity to operate in Brazil, issued by the Brazilian Executive Power, in accordance with the legislation in force.
§ 2 The personified company, before starting any technical activities of Architecture and Urbanism in the national territory, must register with the CAU/UF office where its headquarters is located.
§ 3° The personified company may only be carried out in association with a foreign legal entity in whose countries of origin, the current legislation admits the same type of association with Brazilian legal entities to act in those countries in the activity of Architecture and Urbanism.
§ 4 The possibility provided for foreign professionals in art. 6, § 2 of Law No. 12,378, of 2010, will only be allowed for professionals who are members of the foreign legal entity that is part of the personified company described in this Resolution.
Art. 2nd For the purposes set out in this Resolution, the purpose of the incorporation contract of the personified company must correspond to the specific technical activity of Architecture and Urbanism, of exclusive competence of architects and urban planners or shared with other regulated professions.
Art. 3 The temporary registration of an incorporated company referred to in art. 1 will be in force for the duration of the company, defined in the instrument of incorporation of this, or for the time of execution of the objective agreed therein, whichever expires first.[...]" (CAU Resolution No. 49 for the temporary registration and cancellation of registration of a foreign legal entity in the Councils of Architecture and Urban Planning of the States and the Federal District (CAU/UF), upon incorporation of a personified company with a Brazilian legal entity (7 June 2013), Article 1 [google translation])
Law No. 12,378 on Architecture and Urbanism (31 December 2010), Article 10
CAU Resolution No. 49 for the temporary registration and cancellation of registration of a foreign legal entity in the Councils of Architecture and Urban Planning of the States and the Federal District (CAU/UF), upon incorporation of a personified company with a Brazilian legal entity (7 June 2013), Article 1-3
[<a href="https://www.planalto.gov.br/ccivil_03/_ato2007-2010/2010/lei/l12378.htm">Law</a>],[<a href="https://transparencia.caubr.gov.br/resolucao49/">Resolution</a>]