The International Convention for the Control and Management of Ships' Ballast Water and Sediments (IMO 2018 Edition) was adopted in 2004 and entered into force on 8 September 2017, aiming to introduce global regulations to control the transfer of potentially invasive species Resolution (IMO MEPC.207(62) 2011). These efforts are translated into a wide range of solutions for retrofitting and new building services, which is evidenced through the substantial amount of data disclosed and analysed by different parties showing that optimization processes will have an important role for the existent management systems. Analysing a ballast water management installation project for oil tankers, categorizing the stakeholders involved and assessing properly the outcomes from an engineering perspective are important matters. The experience considered at the BWM Convention and its amendments set an important call to the industry in terms of milestones. Avoiding any delay in terms of operation is not the only answer to this call but also setting up an optimized and sustainable operation after the implementation process. The project management, on the subfield of stakeholders' management (Bourne 2016), brings a myriad of individuals connected to ballast water management matters with different levels of knowledge, experience and commitment from an engineering perspective. This article aims to measure these factors and the stakeholders' experience based on qualitative research into the ballast water management convention, with emphasis on the installation process on board. The data herewith analysed was obtained from a series of interviews conducted from January 2019 to August 2019.