Finding funders is a time-consuming process and to help you, there are several online directories that allow you to comb through their databases, sometimes for free. We have listed some below.
Foundation Center is one of the best sources of information on foundations and nonprofit organizations in the U.S. and globally. In addition to its web presence, it maintains collections and has specialists in physical libraries around the country. Some of the information and services require a subscription (grantwinners.net holds a professional level subscription). They also offer classes online and offline that are well worth the (sometimes nominal) fees.
You can view Foundation Directory Online‘s database for free in the Portland area at the Maine Philanthropy Center. Located in the Glickman Building of USM in Portland, the full database is available as well as on site staff to help you negotiate the system.
Maine Philanthropy Center also has an extensive online directory available to members. Information is available here.
Maine Association of Nonprofits has a searchable database available to members for a small fee, through grantstation.com
GuideStar is a national database of U.S. charitable organizations, GuideStar gathers and distributes data on more than 850,000 IRS-recognized nonprofits.
The Puget Sound Grantwriters Association offers a free and comprehensive collection of links to research resources, including email newsletters and guidance specific to corporate, government, or international grants.