501See

501see is a grant research and workflow platform for nonprofits, grant-seeking teams, and grant-writing consultants. It helps users find potential funders, assess whether they fit a program, and organize the next steps without relying on scattered spreadsheets. Its database includes more than 400,000 foundations and funders and 16 million grants, based on IRS filings and related organization records. Users can search by factors such as geography, cause, grant size, giving history, recipient, and whether a funder appears open to applications.

The free plan provides basic funder search, profiles, giving information, and recent grant records. Paid plans add prospect tracking, projects, application deadlines, reminders, saved searches, email alerts, and CSV exports. Pro also includes bulk exports, API access, and priority support. Users can create shareable reports to present shortlisted opportunities to clients, boards, or colleagues. 501see offers monthly plans without annual contracts, per-seat charges, or per-record fees. Its developer API provides normalized nonprofit and IRS Form 990 data for applications, research tools, and internal workflows.