Nathalie began designing the Sair da Casca project in 1993, shortly after arriving in Portugal. Sair da Casca was born out of the conviction that companies are the driving force behind sustainable development and that they need to strengthen their links with society in order to maximize their positive impact. The concept of Sair da Casca was the result of the first years of professional experience, dedicated to investigative journalism, many collaborations with NGOs related to extreme poverty and the first participations in the creation of companies related to information and citizenship. In Portugal, her entrepreneurial streak continued with Sair da Casca and later with her participation in the short-lived company Gandaia (which linked art and the reuse of "abandoned" furniture) or in Finance for Social Impact - FSI, created with Sair da Casca.

Nathalie is responsible for business development and internationalization. She follows the themes of inclusive business, social impact assessment and the role of education for economic and social growth. She is a member of the European Union's Expert Group on Sustainability - Networking for better Corporate Social Responsibility (CSR) advice to Small and Medium Sized Enterprises (SMEs). She is a Fellow of the Rothschild Foundation for social entrepreneurship, accompanying various social entrepreneurs through mentoring; a member of the GRACE Board in Portugal and of the Action Tank movement (France). She is also secretary general of the French Economic Council in Portugal.

She studied History and Philosophy at La Sorbonne University and has a degree in Journalism from IPJ, Paris. She has a Certificate in Human Rights from Amnesty International and several Certificates in Social Entrepreneurship (Cambridge and Cornell).

Marta is a partner in Sair da Casca and is responsible for coordinating the team and managing the company's finances. She has over 15 years' experience in projects related to education and communication for children and young people. At Sair da Casca, Marta is responsible for monitoring the Sustainable Development Goals from a business perspective; in particular, she led a project with UNICEF Mozambique on companies and children's rights. She strategically monitors and follows up on educational, awareness-raising and behavioral change projects on sustainable development issues, training, managing corporate philanthropy action plans and defining social responsibility strategies and policies. She is responsible for monitoring responsible communication and marketing for children, international benchmarking and market analysis in the field of education, as well as relationships with institutional partners in different areas, including official bodies related to education. The projects she has led have received various national and international awards such as the Energy Globe Award (Energy Globe Foundation), Best Social Responsibility Campaign (Meios & Publicidade), Best Social Responsibility Communication Campaign (APCE). She recently became involved in the B Corp movement and is now Sair da Casca's focal point in the certification process.

In addition to education, she is also involved in other issues related to children, animals and gender equality.

She studied Business Organization and Management at ISCTE.