Browse group exemptions
All 3,081 non-church group exemptions in the IRS file, by name, state, kind of organization and the month their Form 15644 window opens. Each page shows the group’s chapters on file and its filing window.
IRS EO BMF, posted Oct 13, 2026
The 50 largest groups
- Knights of Columbus
- American Legion
- Parent Booster USA Inc
- Toastmasters International
- International Association of Lions Clubs
- PEO Sisterhood International Chapter
- Rotary International
- National Wild Turkey Federation Inc
- American Legion Auxiliary
- American Federation of State County & Municipal Employees
- Modern Woodmen of America
- PTA California Congress of Parents Teachers Students Inc
- Ducks Unlimited Inc
- The Ohio State University
- Little League Baseball Inc
- National Society of the Daughters of the American Revolution
- Kiwanis International Inc
- PTA Texas Congress
- American Federation of Teachers
- Moose International Inc
- Grand Aerie Fraternal Order of Eagles
- International Association of Fire Fighters
- Shriners International
- Benevolent & Protective Order of Elks of the USA
- Delta Kappa Gamma Society
- Texas 4-H
- United Steelworkers
- Fraternal Order of Police
- Phi Theta Kappa
- Michigan State University
- Trustees of Purdue University
- PTA Florida Congress
- PTA New York Congress
- Tops Club Inc
- Marine Corps League National Headquarters
- AMVETS National Headquarters
- Civil Service Employees Association
- Alpha Kappa Alpha Sorority Inc
- Disabled American Veterans
- Board of Regents of the University of Wisconsin System
- Alpha Delta Kappa Sorority Inc
- Psi Chi the International Honor Society in Psychology
- Illinois Education Association
- United States Bowling Congress Inc
- Virginia Congress of Parents and Teachers
- National Association for the Advancement of Colored People
- Future Farmers of America State Associations & Local Chapter
- Habitat for Humanity International Inc
- Champaign County Extension Education Foundation
- Woodmen of the World Life Insurance Society