Form 15644 windows opening in October 2026
Groups whose yearly Form 15644 window opens in October 2026: usually those whose fiscal year ends in January. Useful for planning a season of filings.
IRS EO BMF, posted Oct 13, 2026
1,401 groups, page 3 of 6. Sorted by chapters on file, largest first.
- National Environmental Balancing Inc
- Network of Executive Women in Hospitality Inc
- Retired Enlisted Association
- Society of St Vincent Depaul Baltimore Council Inc
- Transformations by Austin Angels
- American Fence Association Inc
- American Mutual Life Association
- Automotive Service Councils of California
- Beaverhead County 4 H Foundation Inc
- California Physical Therapy Association
- Cryptic Masonry
- Evans Scholars Foundation
- Federation of State Conservation Voter Leagues Inc
- Florida Pool & Spa Association Inc
- Health Care for All-California
- Intelligent Transportation Society of America
- Jewish Community FDN of the Jewish Federation Council of Greater la
- Knights of Pythias Grand Lodge
- Labor and Employment Relations Association
- Loyal Christian Benefit Association
- Michigan Dental Association
- Most Worshipful Grand Lodge of Free and Accepted Masons of Alaska Inc
- National Association of Corporate Directors
- Natl Society Women Descendants of the Ancient & Honorable Artillery
- Probation Association of New Jersey
- Quail and Upland Wildlife Federation Inc
- San Antonio Area Foundation
- Society for Creative Anachronism Inc
- Society of Pi Kappa Lambada
- State Chartered Credit Unions in Oregon
- Texas Society of Professional Surveyors
- The National Academy of Television Arts and Sciences Inc
- Valley Health System
- American Hemerocallis Society
- Artisans Order of Mutual Protection Most Excellent Assembly
- Aurora Health Care Inc
- Coalition for Animals Inc
- Counselors of Real Estate
- Fashion Group International Inc
- Gerontological Advanced Practice Nurses Association
- Independent Telecommunications Pioneer Association Inc
- Junior Order United American Mechanics
- Lambda Alpha International
- Lets Go Fishing
- Mississippi State Medical Association
- National Association of Guardsmen Inc
- National Association of Letter Carriers Auxiliary of USA
- National Giving Alliance
- Physicians for Social Responsibility Inc
- Real Estate Staging Association Inc
- Sisters Network Inc
- Special Military Active Recreational Travelers Club Inc
- Yokefellowship Prison Ministry
- Amnesty International of the USA Inc
- Coalition of Labor Union Women Cluw
- Conquering Congenital Heart Disease
- First Cavalry Division Association
- Hawaii 4-H Foundation
- Illuman Inc
- Institute of Classical Architecture and Art Inc
- Junior Football League of Central Illinois
- Michigan Master Gardener Association Inc
- National Hbpa Inc
- Order of the Founders & Patriots of America
- Painting & Decorating Contractors of America
- Royal Arch Masons of Arkansas Grand Chapter
- Acts Missions
- American Thoracic Society Inc
- Assoc for Education & Rehbltatn of the Blind & Visually Impaired
- Council of Friends Groups of Akron Summit County Public Library Inc
- Credit Unions in the State of Arizona
- German American National Congress
- Grand Lodge Fraternal Order of Police Associates
- Grand Lodge of Dania of California & Nevada
- Grid Alternatives
- National League for Nursing Inc
- Northern Plains Resource Council
- Parenteral Drug Association Inc
- Pennsylvania Designer-Craftsmen
- RWJ Barnabas Health Inc
- Society of Cosmetic Chemists
- Society of Fire Protection Engineers Inc
- Society of Phi Zeta National Headquarters
- American College of Sports Medicine Inc
- American Opportunity Foundation Inc
- Art Libraries Society of North America
- Aspire of Western New York Inc
- Civil Grand Jurors Association of California
- Design-Build Institute of America
- Grand Council of Cryptic Masons of Minnesota
- Hartsell Athletic Association
- Mechanical Contractors Association of Iowa Inc
- Missouri Association for Family and Community Education Inc
- National Steering Comm of the Assoc for the Imprvmt of Minorits in Irs
- Nationwide Childrens Hospital Inc
- Navy Nurse Corps Association
- New Canaan Society Inc
- New York Credit Union Association Inc
- North Carolina Wildlife Federation
- Professional Rodeo Cowboys Association Inc
- Red & Tan Nation
- Royal and Select Masters of Washington
- St Josephs Health Inc St Josephs University Medical
- United States Tennis Association Inc
- Wisconsin Credit Union League Inc
- 7 X 24 Exchange Inc
- American College Health Association
- Amigos de las Americas
- Association for Commuter Transportation
- Association of California State Supervisors Inc
- California Assessors Association
- Christian Helplines Inc
- City Wide Club of Clubs
- Georgia Optometric Association Inc
- Grand Chapter of the State of Alabama & Its Masonic Jurisdiction
- Great Council of Pennsylvania Improved Order of Red Men
- Ice Age Floods Institute
- International Society for Pharmaceutical Engineering Inc
- Medical Library Association Inc
- Most Worshipful Grand Lodge Ancient Free & Accepted Masons
- Phi Delta Kappa International Inc
- Polish Legion of American Veterans National Dept Ladies Auxiliary
- Royal & Select Masters of Alabama Grand Council
- Royal & Select Masters of Arkansas Grand Council
- Sigma Alpha Omega Christian Sorority
- South Dakota Municipal League
- The Arc of Delaware Inc
- The Ohio Masonic Home
- The Society of Industrial and Office Realtors
- Western Home Services Inc
- Women in Healthcare Inc
- Women in Insurance and Financial Services Inc
- Alternatives to Violence Project Inc
- American College of Clinical Pharmacy
- American Religious Town Hall Meeting Incorporated
- American Staffing Association
- Angel Flight of New England Inc
- Aset the Neurodiagnostic Society
- Atlantic Health System Inc
- District of Columbia Green Spaces Alliance
- Great Council of Indiana Improved Order of Redmen
- Great Council of North Carolina Improved Order of Red Men
- Hearth Patio & Barbecue Association
- Homeaid America Inc
- Indiana State Grange-Patrons of Husbandry Inc
- Infusion Nurses Society Inc
- International Association of Assessing Officers
- Knights of Pythias of West Virginia Grand Lodge
- Living Classrooms Foundation Inc
- Louisiana Restaurant Association Inc
- Mary Washington Healthcare
- National Association for Family and Community Education
- National Association of Educational Procurement Inc
- Nebraska Credit Union League Inc
- Nebraska Right to Life
- Peaceworks Dances of Universal Peace North America
- Royal and Select Masters of Connecticut Most Puissant Grd Conl
- Santa Fe Trail Association
- Sigma Sigma Phi
- Texas Chefs Association Inc
- The Emmaus Calling Inc
- Thrivent Financial for Lutherans
- Trinity Fitness Ministries Inc
- USA Track & Field Inc
- Virginia Native Plant Society Inc
- Youth Evangelism Association Inc
- Academy of Managed Care Pharmacy a New Jersey Nonprofit Corporation
- Afmc Inc
- Alabama Optometric Association
- Alabama Power Company Energizers Inc
- Alabama Power Service Organization Inc
- American College of Foot and Ankle Surgeons
- Association of Information Technology Professionals
- Association of Proposal Management Professionals
- Catholic Engaged Encounter Inc
- Colorado Archaeological Society
- Construction Owners Association of America Inc
- Daughters of the British Empire in State of New Jersey Governing Brd
- Father Flanagans Boys Home
- Fellowship of Christian Cowboys Inc
- Florida Cattlemens County Association Inc
- Houston Square & Round Dance Council Inc
- International Association of Operative Millers
- Most Worshipful Grand Lodge of Free and Accepted Masons of Hawaii
- National Athletic Trainers Association Inc
- National Utility Contractors Association Inc
- New York State Association of Transportation Engineers Inc
- North Carolina Medical Group Managers
- Polish American Congress Inc
- Professional Convention Management Association
- Refrigerating Engineers & Technici
- Rocky Mountain Mutual Housing Association Inc
- Seafarers International Union of North America
- Society of Quality Assurance Incorporated
- Talladega College National Alumni Association
- The Arc of Iowa
- Vibration Institute
- Workmens Benefit Fund of the USA
- Adsc the International Association of Foundation Drilling
- Affordable Communities Inc Parent Return
- Alliance for Transformational Ministry
- Alpha Omega International Dental Fraternity Inc
- American Wheat Mission Inc
- Atlanticare Health System Inc
- Aultman Health Foundation
- California State Foster Parent Association Inc
- Camp Quest Inc
- Childrens Bible Ministries Inc
- Childrens Healthcare of Atlanta Inc
- Coalition of Free Men Inc
- Communication Alliance to Network Thoroughbred Ex-Racehorses
- Credit Unions Chartered in the State of South Carolina
- Department of Financial Institution Division of Credit Unions in Ind
- Dermatology Nurses Association
- Evangelical Services for the Aging
- Fleet Reserve Association
- Illuminating Engineering Society
- Institute for Black Charities
- International Guards Union of America
- International Ship Masters Association
- International Society of Weighing & Measurement Inc
- Kissito Healthcare Inc
- Louisiana Dental Association
- Memorial Sloan-Kettering Cancer Center
- Montgomery Housing Partnership Inc
- National Federation of Municipal Analysts
- National Society of Genetic Counselors Inc
- New England Collegiate Baseball League Inc
- Oklahoma Dental Association
- Pacific Coast Norwegian Singers Association
- Professional Engineers of North Carolina
- Rocky Mountain Dressage Society Incorporated
- Royal Arch Masons of Nebraska
- Royal Arch Masons of North Carolina Grand Chapter
- Scholastic Archery Association Corporation
- Tennessee Credit Union League Inc
- The Interior Design Society Inc
- Theta Nu XI Multicultural Sorority Incorporated
- Toolbank USA Inc
- Wisconsin Deerhunters Inc
- 700 Bowling Clubs of America
- Affordable Community Housing Trust
- American Association of Birth Centers
- American Cetacean Society
- American Music Therapy Association
- Applied Scholastics International
- Beta Phi Mu
- Commemorative Air Force
- Cryptic Masons in Nebraska Grand Council State Headquarters
- Faa Managers Association Inc