What Internal Teams Benefit Most From a Custom PowerPoint Design

In large organizations, different departments create presentations for different purposes, from sales and marketing to finance, HR, and executive leadership. Many companies work with a Custom PowerPoint design agency for enterprises to support multiple teams while maintaining a consistent standard across presentations. However, the level of support each department needs can vary. I'm interested in hearing different perspectives on this topic. Which internal teams do you think benefit the most from a custom PowerPoint design agency, and why?