Form 15644 windows opening in April 2027
Groups whose yearly Form 15644 window opens in April 2027: usually those whose fiscal year ends in July. Useful for planning a season of filings.
IRS EO BMF, posted Oct 13, 2026
896 groups, page 1 of 4. Sorted by chapters on file, largest first.
- International Association of Lions Clubs
- PEO Sisterhood International Chapter
- Rotary International
- PTA California Congress of Parents Teachers Students Inc
- Ducks Unlimited Inc
- The Ohio State University
- PTA Texas Congress
- American Federation of Teachers
- Delta Kappa Gamma Society
- Fraternal Order of Police
- Michigan State University
- Trustees of Purdue University
- PTA New York Congress
- Marine Corps League National Headquarters
- Board of Regents of the University of Wisconsin System
- Psi Chi the International Honor Society in Psychology
- Illinois Education Association
- Virginia Congress of Parents and Teachers
- Habitat for Humanity International Inc
- Champaign County Extension Education Foundation
- PTA North Carolina Congress of Parents and Teachers Inc
- International Brotherhood of Electrical Workers
- National Rural Letter Carriers Association
- PTA Utah Congress
- Knights Templar of the United States of America
- American Federation of Labor & Congress of Industrial Orgs
- Kappa Delta Pi an Honor Society in Education
- State of West Virginia
- PTA Delaware Congress
- Beta Gamma Sigma Inc
- PTA New Jersey Congress of Parents & Teachers
- Sigma Gamma Rho Sorority Inc
- PTA Georgia Congress
- New Jersey State Firemens Association
- American Association of University Women Inc
- Sigma Theta Tau International Inc
- Washington State University
- Alpha Omicron Pi Fraternity Inc
- Ancient Free & Accepted Masons of Illinois
- Ohio Congress of Parents & Teachers
- Colorado 4H Foundation Inc
- Illinois Congress of Parents Teachers
- Pi Beta Phi Fraternity
- Pi Mu Epsilon Inc
- Veterans of Foreign Wars of the United States Dept of Wisconsin
- The National Exchange Club
- American Inns of Court Foundation
- Kappa Kappa Gamma Fraternity Inc
- Association for Computing Machinery Inc
- Delta Gamma Fraternity
- Sigma Alpha Iota Fraternity
- Zeta Phi Beta Sorority Inc
- Missouri Congress of Parents and Teachers
- Alpha Phi International Fraternity Inc
- Delta Zeta Sorority
- Sons of Union Veterans of the Civil War
- Maryland 4-H Foundation Inc
- Honor Society of Phi Kappa Phi
- Moms Club
- Kappa Alpha Theta Fraternity
- Rutgers the State University
- International Fraternity of Delta Sigma Pi
- United Association of Journeymen & Apprentices of the Plumbing & Pipe
- The Colorado Congress of Parents Teachers and Students
- Veterans of Foreign Wars of the United States Dept of Texas
- Veterans of Foreign Wars of the United States Dept of Ohio
- University of Wyoming
- Ancient Order of Hibernians in America the Parent Org
- National Church Residences
- Kappa Kappa Kappa Inc
- Veterans of Foreign Wars of the United States Dept of Pennsylvania
- PTA Kentucky Congress
- PTA Pennsylvania Congress
- PTA Alabama Congress
- Veterans of Foreign Wars Department of California
- Veterans of Foreign Wars Department of Illinois
- Veterans of Foreign Wars of the United States Aux Dept of Pa
- Michigan Congress of Parents Teachers and Students
- Pi Kappa Alpha Fraternity
- Voiture Nationale la Societe des 40 Hommes Et 8 Chevaux
- Veterans of Foreign Wars of the United States Dept of New York
- Association of Notre Dame Clubs Inc
- Veterans of Foreign Wars Dept of Michigan
- Kappa Alpha Order
- Parent Teacher Association of Connecticut Inc
- Massachusetts Teachers Association
- PTA Oklahoma Congress
- Lambda Theta Alpha
- Pennsylvania State Grange of Patrons of Husbandry
- Alpha Kappa Psi Fraternity Inc
- Music Teachers National Association Inc
- Sigma Sigma Sigma Inc
- Veterans of Foreign Wars of the US Auxiliary Department of Texas
- Minnesota Congress of Parents and Teachers
- Sertoma Inc
- Society of Women Engineers
- South Carolina Congress of Parents and Teachers
- Arkansas Extension Homemakers Council
- Veterans of Foreign Wars Dept of Minnesota
- Indiana Congress of Parents and Teachers Inc
- Clear Creek Isd Support Groups
- Teammates Mentoring Program
- Veterans of Foreign Wars of the US Department of NJ
- National Sojourners Inc National Headquarters
- Princeton University
- Veterans of Foreign Wars of the United States Dept of Florida
- Alpha Sigma Phi Fraternity Inc
- International Brotherhood of Boilermakers Iron Ship Builders
- Amalgamated Transit Union
- PTA Oregon Congress
- Department of New York VFW Auxiliary
- Michigan Department of the Auxiliary to the VFW
- General Federation of Womens Clubs
- Arizona Congress of Parents & Teach Ers
- Ypo Inc
- Veterans of Foreign Wars of the United States Auxiliary
- Connecticut Education Association Inc
- Christian Medical & Dental Society
- Veterans of Foreign Wars of the United States Dept of Virginia
- PTA Arkansas Congress
- Department of Illinois VFW Auxiliary Inc
- Sigma Alpha Epsilon Fraternity
- Lambda Chi Alpha Fraternity Inc
- National Kappa Kappa Iota Inc
- Penn State Alumni Association
- Ancient Free & Accepted Masons of West Virginia Most Worshipful
- Modern Quilt Guild Inc
- Veterans of Foreign Wars Dept of Missouri
- National Organization of Emblem Clubs
- PTA Tennessee Congress of Parents Teachers Inc
- Pi Kappa Phi Fraternity
- Mystic Order of Veiled Prophets of Enchanted Realm Supreme Council
- National Federation of Music Clubs
- Auxiliary Department of Minnesota Veterans of Foreign Wars
- Phi Mu Fraternity
- Pilot International Inc
- The Garden Club Federation of Massachusetts Inc
- Veterans of Foreign Wars of the United States Dept of Indiana
- American Society of Heating Refrigerating & a-C Engineers
- Trustees of Dartmouth College
- National Sorority of Phi Delta Kappa Inc
- VFW Auxiliary Department Indiana Inc
- Veterans of Foreign Wars of the United States Dept of Nebraska
- PTA New Mexico Congress
- Institute of Management Accountants Inc
- Jewish War Veterans of the United States of America Inc
- Veterans of Foreign Wars of the United States Dept of Washington
- Top Ladies of Distinction Inc
- Asis International Inc
- PTA Kansas Congress of Parents and Teachers
- United Electrical Radio & Machine Workers of America
- University of Maine System Inc
- Veterans of Foreign Wars of the United States Dept of Iowa
- Veterans of Foreign Wars Auxiliary
- California Garden Clubs Inc
- University of Florida Alumni Association Inc
- International Facility Management Association Inc
- Junior Achievement USA
- Hillel the Foundation for Jewish Campus Life
- Veterans of Foreign Wars of the United States Dept of NC
- Alumnae Association of Mount Holyoke College Inc
- Brotherhood of Railroad Signalmen Grand Lodge
- Sigma Chi Fraternity
- Delta Chi Fraternity
- Safari Club International
- Sigma Nu Fraternity Inc
- Phi Eta Sigma National Honor Society Inc
- Phi Sigma Sigma Inc
- Garden Club of Ohio Inc
- Upmc
- Phi Gamma Delta Fraternity
- PTA Wisconsin Congress
- Most Worshipful Prince Hall Grand Lodge of Virginia F & a Masons Inc
- Phi Delta Theta Fraternity
- Idaho Congress of Parents and Teachers Inc
- Yale University
- Delta Waterfowl Foundation
- Pi Sigma Epsilon Inc
- New Jersey State Federation of Womens Clubs
- Order of the Eastern Star of Kentucky
- Klein Support Groups Inc
- VFW of the United States Auxiliary Department of Virginia
- Veterans of Foreign Wars of the United States Dept of Colorado
- Veterans of Foreign Wars of the United States Dept of Georgia
- Veterans of Foreign Wars of the United States Dept of Kansas
- Depart of Tennessee Veterans of Foreign Wars of the United States
- Catholic War Veterans of the United States of America Inc
- Veterans of Foreign Wars of the VFW NC Auxiliary
- Connecticut State Employees Association
- Montana Congress of Parents Teachers Students
- Fuller Center for Housing Inc
- Principia Clubs
- VFW Auxiliary Department of Iowa
- American Harp Society Inc
- Delta Sigma Phi Fraternity Inc National Headquarters
- Veterans of Foreign Wars of the United States Dept of Oregon
- International Right of Way Association
- Sigma Phi Epsilon Fraternity Inc
- Veterans of Foreign Wars Auxiliary
- Wildflower Foundation
- Iowa Congress of Parents and Teachers Inc
- PTA Hawaii Congress
- Michigan Association of Retired School Personnel
- Ancient Free & Accepted Masons of Montana Grand Lodge
- California Retired Teachers Association
- Kappa Omicron Nu Inc
- National Contract Management Association
- Amikids Inc
- National Association of Insurance Women
- National Association of Negro Business and Professional Womens C
- United Union of Roofers Waterproofers & Allied Workers
- International Union of Elevator Constructors
- Veterans of Foreign War Auxiliary Dept of KSW
- The National Alumnae Association of Spelman College
- American Orff-Schulwerk Association
- Native Daughters of the Golden West Grand Parlor
- Veterans of Foreign Wars of the United States Dept of Louisiana
- West Virginia Congress of Parents and Teachers Inc
- Alpha Gamma Rho Fraternity
- Cherry Creek School District Parent Teacher Community Council Inc
- Department of Massachusetts VFW Auxiliary Inc
- Louisiana 4-H Foundation
- University of Florida
- Women Marines Association
- Alaska PTA
- Florida Farm Bureau Federation Inc
- Say Soccer USA Soccer Association for Youth USA
- Texas Federation of Womens Clubs
- Veterans of Foreign Wars of the United States Auxiliary Dept of MD
- The Wildlife Society
- Ace Mentor Program of America Inc
- Iota Phi Lambda Sorority Inc
- Sigma Delta Tau Society
- Veterans of Foreign Wars of the United States Dept of West VA
- VFW Auxiliary Department of Oklahoma Inc
- Distributive Education Clubs of America
- Veterans of Foreign Wars Dept of Kentucky
- Virginia Retired Teachers Association
- American College of Physicians Inc
- Community Associations Institute
- National Association of University Women
- Delta Upsilon International Fraternity Inc
- Florida State University Alumni Association
- Free and Accepted Masons of Arizona Masonic Temple
- PTA Nevada Congress
- Sigma Pi Fraternity International
- Veterans of Foreign Wars of the United States Dept of Arizona
- PTA Louisiana Congress
- PTA Massachusetts Parent-Teacher Association Inc
- Entrepreneurs Organization