Normally a resume of your nonprofit organization should come at the end of your proposal. Your natural inclination may be to put this information up front in the document. But it is usually better to sell the need for your project and then your agency's ability to carry it out.
It is not necessary to overwhelm the reader with facts about your organization. This information can be conveyed easily by attaching a brochure or other prepared statement. In two pages or less, tell the reader when your nonprofit came into existence; state its mission, being certain to demonstrate how the subject of the proposal fits within or extends that mission; and describe the organization's structure, programs, leadership, and special expertise.
Discuss the size of the board, how board members are recruited, and their level of participation. Give the reader a feel for the makeup of the board. (You should include the full board list in an appendix.) If your agency is composed of volunteers or has an active volunteer group, describe the function that the volunteers perform. Provide details on the staff, including the numbers of full and part-time staff, and their levels of expertise.
Describe the kinds of activities in which your staff engage. Explain briefly the assistance you provide. Describe the audience you serve, any special or unusual needs they face, and why they rely on your agency. Cite the number of people who are reached through your programs.
Tying all of the information about your nonprofit together, cite your agency's expertise, especially as it relates to the subject of your proposal.