Groups starting with I
Central organizations whose name in the IRS file starts with I, with chapters on file and Form 15644 windows.
IRS EO BMF, posted Oct 13, 2026
161 groups. Sorted by name.
- I C P a Inc
- Iac-International Academy of Consciousness Inc
- Iamcp-United States Inc
- Ibero-American Action League Inc
- Ice Age Floods Institute
- Idaho Association for the Education of Young Children
- Idaho Chaplains Corps Inc
- Idaho Congress of Parents and Teachers Inc
- Idaho Society of Professional Land Surveyors Inc
- Idaho State Grange
- Idaho State Search and Rescue Association Inc
- Iglesia de Dios Pentecostal Alfa Y Omega of Alexandria Virginia
- Ikl Inc
- Illinois Association for the Education of Young Children
- Illinois Coalition Against Domestic Violence
- Illinois Congress of Parents Teachers
- Illinois Corn Growers Association
- Illinois Credit Union League
- Illinois Education Association
- Illinois Nurses Association
- Illinois Reading Council Inc
- Illinois Society of Professional Engineers
- Illinois State Grange
- Illinois Youth Rugby Association
- Illuman Inc
- Illuminating Engineering Society
- Immigrant Hope
- Impact Seven Incorporated
- Imperial Council Shrine Guilds of America
- Improved Benevolent & Protective Order of Elks of the World
- Improved Order of Red Men Degree of Pocahontas of Ohio
- Improved Order of Red Men Degree of Pocahontis of New Jersey Great
- Improved Order of Red Men of Texas Great Council
- Improved Order of Redmen Degree of Pocahontas of Pennsylvania
- Improved Order of Redmen of Maine
- Improved Order of Redmen of Virginia
- Independent Electrical Contractors Inc
- Independent Order of Foresters
- Independent Order of Odd Fellows
- Independent Order of Svithiod
- Independent Telecommunications Pioneer Association Inc
- Indiana Congress of Parents and Teachers Inc
- Indiana Dental Hygienists Association Inc
- Indiana Farm Bureau
- Indiana Federation of Business & Professional Womens Club Inc
- Indiana Independent Automobile Dealers Association Inc
- Indiana Soccer Association Inc
- Indiana Society of Professional Land Surveyors Inc
- Indiana State Grange-Patrons of Husbandry Inc
- Indiana State Teachers Association
- Indiana Symphony Society Inc
- Industrial Workers of the World
- Information Systems Audit and Control Association Inc
- Information Systems Security Association
- Infragard National Members Alliance Inc
- Infusion Nurses Society Inc
- Inner Wheel USA Inc
- Insights Association Inc
- Institute for Black Charities
- Institute of Classical Architecture and Art Inc
- Institute of Industrial and Systems Engineers Inc
- Institute of Internal Auditors
- Institute of Management Accountants Inc
- Institute of Real Estate Management of the Natl Assn of Realtors
- Institute of Scrap Recycling Industries Inc
- Insurance Accounting & Systems Association Inc
- Intelligent Transportation Society of America
- Intentional Life Media
- International Alliance Theatrical Stage Employees
- International Allied Printing Trades Association
- International Association for Dental Research
- International Association for Public Participation USA
- International Association of Administrative Professionals
- International Association of Assessing Officers
- International Association of Business Communicators
- International Association of Diecutting and Diemaking
- International Association of Eating Disorders Professionals Foundation
- International Association of Electrical Inspectors
- International Association of Exhibitions and Events
- International Association of Fire Fighters
- International Association of Heat & Frost Insulators & Allied Workers
- International Association of Hospitality Accountants
- International Association of Jewish Genealogical Societies Inc
- International Association of Lions Clubs
- International Association of Machinists & Aerospace Grand Lodge
- International Association of Operative Millers
- International Association of Rehabilitation Professionals
- International Association of Sheet Metal Air Rail and Transportation
- International Association of Venue Managers Inc
- International Brotherhood of Boilermakers Iron Ship Builders
- International Brotherhood of Electrical Workers
- International Brotherhood of Teamsters
- International Cesarean Awareness Network Inc
- International Chinese Statistical Association
- International Christian Adoptions
- International Costumers Guild Inc
- International Council for Helplines
- International Enneagram Association
- International Erosion Control Association
- International Facility Management Association Inc
- International Federation of Professional & Technical Engineers
- International Fellowship of Christian Businessmen USA
- International Footprint Association Inc
- International Foundation of Bio- Magnetics
- International Fraternity of Delta Sigma Pi
- International Guards Union of America
- International Institute of Building Enclosure Consultants
- International Life Services Incorporated
- International Literacy Association
- International Live Events Association Inc
- International Longshore & Warehouse Union
- International Longshoremens Association AFL - CIO
- International Maintenance Institute Inc
- International Masons
- International Microelectronics and Packaging Society
- International Mountain Bicycling Association
- International Nepali Literary Society
- International Ocd Foundation Inc
- International Order of the Kings Daughters and Sons
- International Order of the Rainbow Girls Supreme Assembly
- International Organization of Good Templars
- International Organization of Good Templars Central States
- International Plate Printers Die Stampers & Engravers Union of N a
- International Police Association United States Section
- International Psychotherapy Institute Inc
- International Right of Way Association
- International Security Officers Police & Guards Union
- International Ship Masters Association
- International Society Daughters of Utah Pioneers
- International Society for Pharmaceutical Engineering Inc
- International Society of Automation
- International Society of Certified Employee Benefit Specialists Inc
- International Society of Weighing & Measurement Inc
- International Union of Bricklayers and Allied Craftworkers
- International Union of Elevator Constructors
- International Union of Journeymen & Allied Trades
- International Union of Painters and Allied Trades
- International Union Security Police Fire Professionals of America
- International Union United Auto Aerospace & Agricultural Workers
- International United Retired Governmental Employees
- International Womens Insolvency & Restructuring Confederation Inc
- Interscholastic Yacht Racing Association Inc
- Intervarsity Christian Fellowship- USA
- Iota Phi Lambda Sorority Inc
- Iota Sigma Pi
- Iowa Association for the Education of Young Children Inc
- Iowa Cattlemens Association
- Iowa Congress of Parents and Teachers Inc
- Iowa Corn Growers Association
- Iowa Farm Bureau Federation
- Iowa River Legacy Foundation
- Irish American Unity Conference Inc
- Irmandade de Santa Maria Magdalena
- Irmandade de Santo Antonio de Socorro Mutuo Estado de California
- Iron Pigs Motorcycle Club
- Isaac Newton Foundation Inc
- Italian Catholic Federation of Calif Inc Central Council
- Izaak Walton League of America Inc
- The Iga Nephropathy Foundation of America Inc
- The Interior Design Society Inc
- The International Society for the Study of Trauma and Dissociation