Quidnunc is a powerful research tool designed for investigative journalists, fundraisers, OSINT specialists, or anyone who wants to uncover the billions of dollars that moves through the 501(c) nonprofit system. Search through 6 million electronically-filed tax returns stored in tabular form, using powerful search filters to search and cross-reference many hundreds of fields; and download up to 10,000 rows of data at a time. Along with detailed financial information about each filing organization, navigate easily through 20 million+ grants, 70 million+ associated persons and organizations, and tens of millions of additional rows detailing an organization’s activities at home and abroad.