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NTEE major group Z
Unknown Nonprofits
Givalgo Discover indexes 50 active US unknown organisations recognised by the IRS as tax-exempt under section 501(c). The list below shows the largest by reported revenue on each org's most recent Form 990 filing. Click any row for the full Due Diligence profile — IRS status, Form 990 financials, governance flags, peer benchmarks, and auto-revocation history.
Top 50 by reported revenue
From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.
| # | Organisation | Location | Revenue |
|---|---|---|---|
| 1 | MERCY CARE EIN 86-0527381 | PHOENIX, AZ | $4.8B |
| 2 | MERCY CLINIC EAST COMMUNITIES EIN 43-1771217 | CHESTERFIELD, MO | $739.7M |
| 3 | ARAB FUND FOR ECONOMIC AND SOCIAL DEVELOPMENT EIN 98-0211642 | KUWAIT | $420.4M |
| 4 | CALSTART INC EIN 95-4375022 | PASADENA, CA | $396.8M |
| 5 | SRC INC EIN 15-0589832 | N SYRACUSE, NY | $326.5M |
| 6 | COMMUNITY HOWARD REGIONAL HEALTH INC EIN 35-1865344 | KOKOMO, IN | $237.5M |
| 7 | EMORY & CHILDRENS PEDIATRIC INSTITUTE INC EIN 58-1692698 | ATLANTA, GA | $197.1M |
| 8 | PROVIDENCE MEDICAL INSTITUTE EIN 33-0283773 | RENTON, WA | $182.6M |
| 9 | CITY YEAR INC EIN 22-2882549 | BOSTON, MA | $173.1M |
| 10 | CREDIT UNIONS IN THE STATE OF WASHINGTON EIN 91-1792217 | RICHLAND, WA | $171.2M |
| 11 | ARCTIC SLOPE NATIVE ASSOCIATION LTD EIN 91-0873623 | BARROW, AK | $145.0M |
| 12 | DANA-FARBER INC EIN 04-3102433 | BOSTON, MA | $120.5M |
| 13 | COMPASS HEALTH EIN 91-1180810 | EVERETT, WA | $117.4M |
| 14 | COMMUNITY RESEARCH FOUNDATION INC EIN 95-3248148 | SAN DIEGO, CA | $116.2M |
| 15 | NEW YORK STATE TECHNOLOGY ENTERPRISE CORPORATION EIN 16-1521105 | ROME, NY | $114.9M |
| 16 | LOW INCOME HOUSING INSTITUTE EIN 94-3155150 | SEATTLE, WA | $108.6M |
| 17 | NATIONAL ASSOCIATION OF COUNTY AND CITY HEALTH OFFICIALS EIN 52-1426663 | WASHINGTON, DC | $101.9M |
| 18 | TERROS INC EIN 86-0252067 | PHOENIX, AZ | $98.5M |
| 19 | INDEPENDENT ORDER OF ODD FELLOWS EIN 94-1251113 | NAPA, CA | $85.3M |
| 20 | TURNING POINT USA INC EIN 80-0835023 | INDIANAPOLIS, IN | $85.0M |
| 21 | SHARE OUR STRENGTH EIN 52-1367538 | WASHINGTON, DC | $79.1M |
| 22 | BORREGO COMMUNITY HEALTH FOUNDATION EIN 33-0440021 | BORREGO SPGS, CA | $79.0M |
| 23 | BABY2BABY EIN 46-4503539 | LOS ANGELES, CA | $77.7M |
| 24 | UNIDOSUS EIN 86-0212873 | WASHINGTON, DC | $75.9M |
| 25 | AUGUSTANA CARE EIN 41-1728753 | EDINA, MN | $75.3M |
| 26 | COMUNILIFE INC EIN 13-3530299 | NEW YORK, NY | $75.0M |
| 27 | LAKE COUNTY TRIBAL HEALTH CONSORTIUM INC EIN 94-2847137 | LAKEPORT, CA | $73.1M |
| 28 | WILDWOOD PROGRAMS INC EIN 22-2132752 | LATHAM, NY | $72.9M |
| 29 | GALLO EMPLOYEE BENEFIT TRUST EIN 94-2334925 | MODESTO, CA | $70.0M |
| 30 | FISHER HOUSE FOUNDATION INC EIN 11-3158401 | ROCKVILLE, MD | $70.0M |
| 31 | HAMASKPIK OF ROCKLAND COUNTY INC EIN 13-3978518 | MONSEY, NY | $67.9M |
| 32 | ARIZONA BEHAVIORAL HEALTH CORPORATION EIN 86-0888064 | PHOENIX, AZ | $62.0M |
| 33 | DAVE THOMAS FOUNDATION FOR ADOPTION EIN 31-1356151 | DUBLIN, OH | $61.6M |
| 34 | CHILDRENS MIRACLE NETWORK EIN 87-0387205 | SALT LAKE CTY, UT | $59.7M |
| 35 | MORTGAGE BANKERS ASSOCIATION OF AMERICA EIN 36-1505650 | WASHINGTON, DC | $59.7M |
| 36 | AMERICAN INDEPENDENT FOUNDATION EIN 33-1137541 | WASHINGTON, DC | $58.6M |
| 37 | OPERATION HOPE INC EIN 95-4378084 | ATLANTA, GA | $57.4M |
| 38 | TACO BELL FOUNDATION INC EIN 33-0523542 | IRVINE, CA | $56.3M |
| 39 | CENTRAL CITY COMMUNITY HEALTH CENTER INC EIN 95-4492570 | MONTEREY PARK, CA | $53.0M |
| 40 | JAEB CENTER FOR HEALTH RESEARCH INC EIN 59-3187624 | TAMPA, FL | $51.6M |
| 41 | BRONSON SOUTH HAVEN HOSPITAL EIN 38-1676780 | KALAMAZOO, MI | $47.9M |
| 42 | JULIA DYCKMAN ANDRUS MEMORIAL INC EIN 13-2793295 | YONKERS, NY | $40.2M |
| 43 | INDEPENDENT OPPORTUNITIES INC OF OKLAHOMA EIN 74-2547238 | TULSA, OK | $39.7M |
| 44 | IOWA DONOR NETWORK EIN 42-1414092 | NORTH LIBERTY, IA | $38.6M |
| 45 | NEXTGEN CLIMATE ACTION EIN 46-1957345 | SAN FRANCISCO, CA | $38.5M |
| 46 | BIOVERSITY INTERNATIONAL EIN 98-0142916 | ITALY | $38.2M |
| 47 | CONTAINER ROYALTIES SUPPLEMENTAL EIN 57-0551096 | CHARLESTON, SC | $38.2M |
| 48 | STERLING CO EIN 46-2455801 | GADSDEN, AL | $37.8M |
| 49 | ZAKAT FOUNDATION OF AMERICA EIN 36-4476244 | WORTH, IL | $37.8M |
| 50 | NEW AMERICA FOUNDATION EIN 52-2096845 | WASHINGTON, DC | $37.2M |
By state
8,084 organisations across 51 categories.
- 1,43117.7%
- 5697.0%
- 5466.8%
- 4385.4%
- 4015.0%
- 3284.1%
- 2362.9%
- 2312.9%
- 2042.5%
- 1962.4%
- 1892.3%
- 1892.3%
Frequently asked questions about Unknown nonprofits
Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.
Frequently asked questions about Unknown nonprofits
Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.
- What counts as a Unknown nonprofit?
- Unknown nonprofits are US tax-exempt organisations classified under the IRS National Taxonomy of Exempt Entities (NTEE) major group "Z" (Unknown). The IRS assigns the NTEE code based on the organisation's primary purpose as reported on Form 990.
- How are unknown nonprofits regulated?
- Unknown nonprofits with annual gross receipts of $50,000 or more must file Form 990 (or 990-EZ) annually with the IRS. Smaller orgs file the 990-N e-Postcard. Failure to file for three consecutive years triggers automatic revocation of tax-exempt status.
- How can I verify a unknown nonprofit's tax-exempt status before granting?
- Cross-reference the organisation against the IRS Auto-Revocation List AND IRS Publication 78. Pub 78 confirms whether donations are tax-deductible; the Auto-Revocation List confirms whether the org has lost its status for non-filing. Givalgo Discover surfaces both signals on every org profile.
- Where can I find Form 990 data for unknown nonprofits?
- Each organisation's Form 990 — including financials, governance, programs, and grants — is publicly available from the IRS. Givalgo Discover aggregates the full corpus (Form 990, 990-EZ, 990-PF, 990-N) and provides a free profile for every IRS-registered unknown nonprofit.
- What's the difference between a 501(c)(3), 501(c)(4), and 501(c)(6)?
- 501(c)(3) is the standard tax-exempt classification for public charities and private foundations; contributions are tax-deductible. 501(c)(4) covers civic-league / social-welfare orgs; contributions are not deductible. 501(c)(6) covers business leagues and chambers of commerce. The IRS subsection code on each Givalgo Discover profile identifies the exact classification.