There are opportunities and room for philanthropy sector to cross new borders regarding collective and collaborative action. Whether in the sense of articulation, when there are several players dedicated to the same causes and/or territories or to similar or complementary agendas, or in the search for engagement of new players – considering that there is still a great deal of potential to increase grants both in volume and number of donors, making the field ever more diverse. This publication addresses the concept of Collaborative Philanthropy, not only presenting an overview of the processes, formats and modes of action, but also seeking to illustrate ways for qualified enhanced collaboration in the field of philanthropy and social investment.