Founded in 1955, in São Paulo, Brazil, and acquired by the Odebrecht Group in 1986, a step that led to the gradual replacement of the company's name in the projects it carried out by that of Construtora Norberto Odebrecht, the Tenenge brand is back in the industrial works market.
The company participated in some of the most relevant and emblematic energy generation projects in Brazil, such as the Itaipu Hydroelectric Plant, currently the second largest in the world in generation, through the Itamon assembly joint venture. Until 1986, when it was acquired by the Odebrecht Group, the company had worked on the construction of more than thirty percent of the Brazilian hydroelectric complexes. In addition to Itaipu, the company participated in the industrial assembly of the Capivara, Ilha Solteira, Paraibuna, Paulo Afonso IV and São Simão plants, among others.
In the steel sector, Tenenge was part in the construction of enterprises of companies such as Usiminas, CSN (Companhia Siderúrgica Nacional), CST (Companhia Siderúrgica de Tubarão), Açominas, Cosipa and Belgo-Mineira. For Petrobras, it built several refineries and participated in the assembly of the petrochemical complexes in Camaçari, São Paulo, Rio Grande do Sul and Alagoas. Tenenge built the oil extraction platforms for the Namorado I and II and Cherne I wells in the Campos Basin. As well as worked in several projects of the then Companhia Vale do Rio Doce, such as Carajás, and in the sectors of paper and cellulose, cement, fertilizers and industrial infrastructure.
The company is currently executing industrial maintenance contract for Braskem, in the states of Alagoas, Bahia, São Paulo, Rio de Janeiro, and Rio Grande do Sul; the closing of the combined cycle of the Santa Cruz Thermoelectric Plant, in Rio de Janeiro, for the client Furnas; and the construction of the Gas Sul Terminal for New Fortress Energy, in Santa Catarina. In addition, it has been acting in the acquisition of inputs for the construction of the Ocean Terminal of Barra do Dande, in Angola, a Sonangol venture.