An internal concept of fundraiser work, which represents a traditional model: the organization employs fundraiser, seeks grant schemes, works with corporate sponsors and individual donors. The disadvantage of such a model is that if the fundraiser is not successful, an organization can become more than its own.
Cumulating the role of a manager and a fundraiser often leads to a lack of focus on a single role. An advantage, on the other hand, is the interest of an internal fundraiser to tie the sympathizers' contacts to the organization and not to themselves.
Any fundraiser's testimony does not pose a risk to the organization, as is the case with the external fundraising model. Internal fundraising naturally blends with building and managing PR organizations.