Early evidence supports standardised innovation management system(s) (SIMS) as an approach to achieve improved value for organisations. Mott MacDonald, a large multinational engineering, management and development consultancy is strengthening its innovation and social outcomes by implementing a SIMS based upon ISO 56002:2019. This case study was based on their UK operations, and explores early stage implementation phenomena. Data gathering included interviews and a small-sample questionnaire (purposive sampling). We identified how respondents perceived factors such as: ownership of the innovation work (at individual, unit, and group level); understanding the system and value gained from a systematic approach, benefits of a common innovation framework; and development in terms of enhanced abilities to “talk about” innovation, competency growth, and engagement in innovation activities. The findings provide insights for other organisations to further understand the effects of SIMS and opportunities for enhanced implementation and uptake.