Form 15644 windows opening in October 2026
Groups whose yearly Form 15644 window opens in October 2026: those whose fiscal year ends on Dec 31, 2026. Useful for planning a season of filings.
IRS EO BMF, posted Oct 13, 2026
1,401 groups, page 5 of 6. Sorted by chapters on file, largest first.
- Peconic Landing at Southold Inc
- Pennsylvania Society of Health-System Pharmacists
- Portuguese Fraternal Society of America
- Public Relations Council of Alabama
- Purple Heart Homes Inc
- Right to Life League of Southern California
- Rockland County Patrolmens Benevolent Association Inc
- Society of Daughters of the United States Army
- Society of Women Environmental Professionals
- Sound Generations
- Tennessee Nurses Association
- Texas State Association of Occupational Health Nurses Inc
- The American Ceramic Society Inc
- The American Geriatrics Society Inc
- The Florida Restaurant & Lodging Association Inc
- The Society Inc
- Town & Country Youth Leagues Inc
- Uempoweru Inc
- Ukrainian National Association Inc
- USA Diving Inc
- Veterans of America Inc
- 111PROJECT Inc
- A B a T E of Illinois Inc
- Abate of Oregon-Parent Organization
- Ability Tree Inc
- Accessability Inc
- Advocate Health Care Network
- All As One Inc
- America World Adoption Association
- American Bikers Aimed Toward Education Inc
- American Institute of Professional Geologists
- American Land Title Association
- American Leadership Forum National
- American Medical Womens Association Inc
- Anthroposophical Society in America
- Apmi International
- Arc Minnesota Inc
- Arc of North Dakota Inc
- Arizona Baptist Childrens Services
- Armed Services YMCA of the USA
- Association for Supervisor and Curriculum Development
- Backcountry Horsemen of California Inc
- Bay State Animal Cooperative
- Benevolent Order of the Guardians of Corvidae Inc
- Boulder Food Rescue
- Boys and Girls Club of Benton County
- Cancer Research America NFCR Inc
- Catholic Psychotherapy Association Inc
- Catholics United for Life
- Childrens Fund
- Childrens Museum Inc
- Chinese Family for Christ
- Christian Communicators of America
- Circle of Investigation of Gnostic Anthropology Inc
- City to Saddle
- Cordova District Fishermen United Cdfu
- Cy-Hope Inc
- Dairy Herd Improvement Association Operating in the State of Wash
- Daughters of the British Empire in Northern California
- Deeper Walk International Inc
- Delta Chi Sigma Sorority International
- Episcopal Engaged Encounter Worldwide
- Eta Sigma Phi Fraternity
- Family Resource Agency Inc
- Farmers Educational & Cooperative Union of America
- Farmers Educational & Cooperative Union of America
- Fellowship of Christian Airline Personnel Inc
- Finlandia Foundation-Twin Cities Chapter Inc
- Florida Chapter of the American Physical Therapy Association
- Florida Nurses Association Inc
- Forensic Expert Witness Association
- Fostoria Glass Society of America Inc
- FPS-the International Organization for Fluid PWR & Motion Cont Prof
- Freedmens Hospital Nurses Alumni Clubs Inc
- Girls Youth Basketball
- Goodwill Industries of South Mississippi Inc
- Great Council of Wisconsin Improved Order of Red Men
- Harristown Development Corporation
- Have Haven Inc
- Healing Species Inc
- Heights Foundation Inc
- Home Care Association of America
- Iac-International Academy of Consciousness Inc
- Idaho Chaplains Corps Inc
- Idaho Society of Professional Land Surveyors Inc
- Illinois Association for the Education of Young Children
- Independent Electrical Contractors Inc
- Independent Order of Svithiod
- International Fellowship of Christian Businessmen USA
- International Foundation of Bio- Magnetics
- International Plate Printers Die Stampers & Engravers Union of N a
- International Security Officers Police & Guards Union
- Iron Pigs Motorcycle Club
- JCI Wisconsin Inc
- Joint Council 1217 Uswu Iujat
- Jubilee Community Development Corporation
- Kids Advancing Hope Coalition
- Knights of the Golden Eagle Grand Castle of Pennsylvania
- Lamaze International
- Light for Life Foundation International
- Living Waters African Methodist Episcopal Church Inc
- Lutheran Family and Childrens Services of Missouri
- Maharishi Foundation USA Inc
- Matthews Ministries
- Mechanical Contractors Association of Indiana Inc
- Mental Health America of Montana Inc
- Metals Service Center Institute Foundation
- Miami Valley Warhawks Baseball Club Inc
- Military Order of Foreign Wars of the United States National Command
- Miss Amazing Inc
- Miss New Hampshire Scholarship Program Inc
- Missouri Organization of Mothers of Twins Club
- Most Worshipful Prince Hall Free & Accepted Masons of Hawaii Inc
- Namic Inc
- National Arab American Medical Association Inc
- National Association of Securities Professionals
- National Coalition Building Institute Inc
- National Coalition on Black Civic Participation Inc
- Network Black Integregated Communications Professional
- Newnan-Coweta Humane Society Inc
- North Dakota Right to Life Association
- Northeast Search and Rescue Inc
- Odc
- Oregon Association of Minority Entr Epreneurs
- Oregon Band of Brothers
- Organization of Chinese American Women Inc
- Organizations Concerned About Rural Education Inc
- Pelham Corporation
- Polish Scouting Organization Z H P Inc
- Praise the Lord Fellowship
- Service Employees International Union
- Shakespeare Festival of Dallas
- Shoshin Ryu Association Inc
- Si on
- Society for Human Resource Management
- Society for Imaging Science and Technology
- Society of Young People of Sant Caterina Mutual Benefit Grand Lodg
- Sovereign Military Order of the Temple of Jerusalem
- Spurwink-Ri
- Steamship Historical Society of America Inc
- Steele County Council on Aging
- Surfing the Nations
- Taylors Tabernacle
- The Community Foundation of Greater Birmingham
- The International Society for the Study of Trauma and Dissociation
- The Onestar Foundation
- The Therapon Institute Inc
- There With Care
- Tribute to the Troops
- Unac-Union of Health Care Professionals
- Unc-CH Sport Clubs Council
- United Service Organizations Inc
- US-China Service Center
- Vitalant
- We Are Blood
- Women in Science Society Inc
- Wray Community District Hospital
- 11th Airborne Division Association
- Abortion Forward
- About Face Veterans Against the War
- Advance Child Care Inc
- Adventure Novelty Association
- Aids Alabama Inc
- All Nations Church of God Incorporated
- American Association of Colleges for Teacher Education
- American College of Medical Quality
- American Diabetes Association Inc
- American Psychiatric Nurses Association
- American Society for Indexing
- American Society for Photogrammetry and Remote Sensing
- American Society of Cardiovascular Professionals
- American Society of Hand Therapists
- Amit Children Inc
- Ananda Marga Gurukula Inc
- Arthritis Foundation Inc
- Association for Healthcare Documentation Integrity
- Association of Certified Fraud Specialists Inc
- Association of Diabetes Care & Education Specialists
- Atlanta Chapter National Railway Historical Society Inc
- Baart Community Healthcare
- Backpack Project Inc
- Baptist Health Service Inc
- Bharatiya Vidya Bhavan USA Inc
- Boston Homeowner Services Collaborative Inc
- Breast Friends
- Burn Care International Inc
- Business Fellowship International
- Business Forms Management Association
- California Aquatic Therapy & Wellness Center Inc
- California Christian Mission to the Phillipines
- California Gang Investigators Association-Cgia
- California State University Employees Union
- Cass County Childrens Initiative Inc
- Catholic Life Insurance
- Catholic Writers Guild Inc
- Cfire Christian Fundamentalist Internal Revenue Employees
- Charlottesville Housing Foundation
- Chicago Hope Inc
- Chinese School Association in the United States
- Christ Healing Center Ministries
- Christian Development Outreach Center
- Church Women United in Texas
- Cimro
- City of Hope Community Development Corporation
- Cleveland Police Patrolmens Social Club Inc
- Coin Laundry Association
- Community Development Center of Hope
- Computer Measurement Group Inc
- Concerned United Birthparents Inc
- Cooper Square Community Development Committee Inc
- Council of Albuquerque Garden Clubs
- Crossroads Inc
- Ctam Cable Telecommunications
- Damage Prevention Council of Texas
- Danny Johnson Heart of Fire Ministries Inc
- Daughters of the British Empire in California Inc
- Daughters of the British Empire in the State of New York
- Do Something Inc
- Doulos Ministries Inc
- Downtown Dallas Inc Foundation
- Dysautonomia Foundation Inc
- Emergency Nurses Association
- Envirocert International Inc
- Families by Choice Inc
- Family Trauma Survivors Network Inc
- Farmers Educational & Cooperative Union of Nebraska
- FGM Organizations Inc
- Field Hockey Federation Inc
- First Windish Fraternal Benefit Society of America
- Florida Association for the Education of Young Children Inc
- Foster Adopt Connect Inc
- Foundation for Airborne Relief
- Friends of the Jacksonville Public Library Inc
- Gardening Association of North Carolina
- Georgia Association for Marriage & Family Therapy
- Gift of Adoption Fund Inc
- Giving the Basics Inc
- Grace Chapel Christian Fellowship
- Greater Harvest Community Development Outreach
- Group Ministries Inc
- Guardian Angels for Soldiers Pet
- Harvest House Ministries
- Hav Life
- Hayim Shaal Congregation Inc
- Hebrew Hospital Home Foundation Inc
- Holiday for Men & Women Inc
- Hvacr Association of Louisiana
- Hypoparathyroidism Association Inc
- Iglesia de Dios Pentecostal Alfa Y Omega of Alexandria Virginia
- Illinois Youth Rugby Association