External Dataset Credits: OpenCorporates Limited
Dataset containing all IRS 990 organizations by EIN for 2022-2023 and their matched opencorporates unique identifiers (company_number). This allows researchers to combine IRS990 data with opencorporates state-level company data. If an organization 0 for the match confidence, that EIN was tested and did not match any opencorporates entities. All 990-CN, EZ, and PF organizations for 2022-2023 were tested.