Studies have shown that transactive memory plays a significant role in how learning occurs within organizations. While many studies have looked at what influences the growth of transactive memory, not much research has been done on how the thought processes of people working in groups are formed. This area of study examines the importance of how knowledge is organized in people's minds at work for the growth of transactive memory and how this process is affected by individual characteristics. Therefore, this study aims to fill this gap by looking at how trust and skill, known as credibility dimensions, affect the growth of transactive memory. For this purpose, information was gathered from 239 people working at a paint and coating company in Saudi Arabia. The results indicate that both trust and skill significantly influence the development of transactive memory.