Among the best known are:
ESAB S.A. Indústria e Comércio
Rio Doce South Africa (PTY) LTD.
Pinto e Cruz Angola Lda.
Construtora Andrade Gutierrez S.A.
BDO Trevisan Auditores Independentes
Space Group
Sigma Gibb Lda.
Dar Al-Handasah Consultants (Shair and Partners)
BP Brasil Ltda.
Ecologus Engenharia Consultiva
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