This thesis explores the conundrum of green financing, accreditation, and certification in the context of sustainability in the Norwegian aquaculture industry. As the demand for sustainable practices in aquaculture continues to grow, the industry faces the challenge of reconciling financial considerations with environmental objectives. The study highlights sustainability and how it encompasses various dimensions, including environmental, financial and productive considerations, as it has become a key focus in the global discourse on responsible resource management. It then examines the role of green financing instruments, such as green bonds, in promoting sustainable initiatives and attracting capital for environmentally friendly projects. It also delves into the complexities arising from the presence of multiple accreditation and certification schemes, which create ambiguity and hinder comparability of environmental performance. To give this scenario an on-going context, this paper compares leading Norwegian aquacultural companies; SalMar, Mowi & Grieg Seafood, in terms of their role and involvement in achieving sustainable practices as well as securing capital from green-financing. The research highlights the need for harmonization and standardization efforts to ensure transparency, credibility, and accountability. Moreover, the thesis underscores the importance of collaboration between industry stakeholders, regulators, and NGOs to address the challenges and advance sustainable practices. Through a comprehensive analysis of the green financing, accreditation, and certification landscape, this study provides valuable insights and recommendations for achieving sustainability in the Norwegian aquaculture industry. By considering the complexities and embracing a multi-faceted approach, the industry can navigate the conundrum and make significant progress towards a more sustainable future
