The aim of this article was to analyse some of the main forestry promotion programmes of Brazilian private sector companies and to carry out a technical study of the social, economic and environmental aspects of these programmes. To this end, a qualitative literature survey was carried out, which sought to analyse four different models of private forestry promotion programmes. For the collection of data, programme documents from Aracruz Celulose S.A., Masisa do Brasil Ltda, Industries Klabin de Papel and Celulose S.A. and Ripasa S.A. Celulose e Papel were used. The documents assessed were charts, manuals and contract models, in printed and electronic format, obtained on company websites or directly with those responsible for the programmes, by means of electronic correspondence. On the basis of the documents, some socio-economical aspects of these programmes were described, such as occupation of western land, restoration of degraded areas, diversification of productive activities, reduction of pressure on natural forests, restoration and maintenance of permanent conservation areas and legal reserve, development of forest-industry clusters, guarantee of supply of raw materials, alternative and additional rent generation, direct and indirect jobs, taxes, dissemination of state-of-the-art technology, environmental monitoring, increased forest cover, and environmental benefits such as soil protection, raincycle regulation, carbon sequestration and phase-out refuge. AbstractThe objective of this paper is to analogue some of the main forest fostering programmes of the Brazilian private companies and to assume the social, economic and environmental aspects of these programmes from a technical stance. A qualitative bibliographical research was carried on in order to analogue four different models of private forest fostering programmes. The data was collected from the private company documents of Aracruz Celulose S.A., Masisa do Brasil Ltda., Industries Klabin de Papel e Celulose S.A. and Ripasa S.A. Cellulose e Papel. The examined documents were handbooks, manuals and contract models, in printed texts or digital formats, which were available in the websites of the companies or obtained directly with the persons who were responsible for the programmes, by electronic mail. On the basis of the documents, an inventory was made of some socio-economic aspects of these programmes, covering as a consequence of the occupation of idle lands, recovery of degraded areas, diversification of productive activities, reduction of pressure upon native forests, restoration and maintenance of permanent preservation and legal reserve areas, development of pole regions of lumber industry, guard of raw maturity supply, generation of alternative and ancillary income, direct and indirect jobs, taxes, dissemination of state-of-the-art technology, environmental monitoring, forest covering increase and consequent environmental benefits, covering the soil protection, rain cycle regulation, carbon and shelter for animals.