Groups starting with S
Central organizations whose name in the IRS file starts with S, with chapters on file and Form 15644 windows.
IRS EO BMF, posted Oct 13, 2026
240 groups. Sorted by name.
- S a Y Detroit
- S C Federation of Business & Professional Womens Clubs Inc
- Sa Youth
- Sabin Group Inc
- Sacramento District Council St Vincent de Paul Society
- SAE Financial and Housing Corporation
- Safari Club International
- Safari Club International Foundation
- Saint Francis Ministries Inc
- Saint Stephens Episcopal Church Foundation
- Salem Villages Incorporated
- Sales and Marketing Executives International Inc
- Salon National la Boutique des Huit
- Sampson High School Alumni Association Inc
- San Antonio Area Foundation
- San Diego Center for the Blind
- San Francisco Bay Area Sports Organizing Committee
- San Luis Valley Behavioral Health Group Inc
- San Ramon Valley Education Foundation
- Sanford
- Santa Barbara Museum of Art
- Santa Fe Trail Association
- Save Our Youth Inc
- Savvy Giving by Design Inc
- Say Soccer USA Soccer Association for Youth USA
- Scarlet Hope Inc
- Scholarship America Inc
- Scholastic Archery Association Corporation
- Scubanauts International Inc
- Sea Islands Community Church of Johns Island SC
- Seafarers International Union of North America
- Seattle Childrens Hospital
- Seattle Community College Parent Cooperative Preschool
- Second Wind Fund Inc
- Secular Student Alliance
- Seed of Abraham Ministries Inc
- Seeds of Hope Ministries Inc
- Seminary Covenant Community
- Seoul National University Alumni Association in USA
- Ser Corporation
- Ser-Jobs for Progress National Inc
- Serb National Federation
- Serra International
- Sertoma Inc
- Service Employees International Union
- Service Employees International Union
- Services for the Underserved Inc
- Seven Hills Foundation Inc
- Several Dancers Core
- Shakespeare Festival of Dallas
- Shelby Christian Church Inc
- Shelter Solano Inc
- SHFP Inc
- Shor Yoshuv
- Shoshin Ryu Association Inc
- Shriners International
- Si on
- Sidewalk University Inc
- Sigma Alpha Epsilon Fraternity
- Sigma Alpha Iota Fraternity
- Sigma Alpha Mu Fraternity Inc
- Sigma Alpha Omega Christian Sorority
- Sigma Beta Sorority Inc
- Sigma Chi Fraternity
- Sigma Delta Epsilon Graduate Womens Scientific Frat
- Sigma Delta Tau Society
- Sigma Gamma Epsilon
- Sigma Gamma Rho Sorority Inc
- Sigma Kappa National Housing Corporation
- Sigma Kappa Sorority
- Sigma Nu Fraternity Inc
- Sigma Phi Alpha Dental Hygiene Honor Society
- Sigma Phi Epsilon Fraternity Inc
- Sigma Phi Gamma International Sorority Inc
- Sigma Phi Lambda Inc
- Sigma Pi Fraternity International
- Sigma Sigma Phi
- Sigma Sigma Sigma Inc
- Sigma Tau Gamma Fraternity
- Sigma Theta Tau International Inc
- Sisters Network Inc
- Skills USA Inc
- Slavonic Benevolent Order of the State of Texas
- Slovak Catholic Sokol
- Slovene National Benefit Society
- Slow Food U S a Inc
- Smart Transporation Division Auxiliary
- Smocking Arts Guild of America Inc
- Snohomish High School Panther Parents Club
- Snowboarders & Skiers for Christ
- Sociedade Portuguesa Rainha Santa Isabel
- Society for Creative Anachronism Inc
- Society for Human Resource Management
- Society for Imaging Science and Technology
- Society for Information Display
- Society for Maintenance and Reliability Professionals Foundati
- Society for Management Information Systems
- Society for Marketing Professional Services
- Society for Neuroscience
- Society for Preservation & Encrgmnt of Barbershop Quartet
- Society for Technical Communication
- Society for the Advancement of Material & Process Engineering
- Society for the Preservation of New England Antiquities Inc
- Society of American Foresters
- Society of American Military Engineers
- Society of Asian Scientists and Engineers
- Society of Beta Sigma Psi National Fraternity
- Society of Cosmetic Chemists
- Society of Critical Care Medicine
- Society of Daughters of the United States Army
- Society of Fire Protection Engineers Inc
- Society of Former Special Agents of the Fbi Inc
- Society of Gastroenterology Nurses and Associates Inc
- Society of Government Meeting Professionals Inc
- Society of Health and Physical Educators
- Society of Incentive and Travel Executives Inc
- Society of Louisiana Certified Public Accountants
- Society of Manufacturing Engineers
- Society of Mayflower Descendants in the State of California Inc
- Society of Mayflower Descendants in the State of Texas Inc
- Society of Pediatric Nurses
- Society of Petrophysicists and Well Log Analysts Inc
- Society of Phi Zeta National Headquarters
- Society of Pi Kappa Lambada
- Society of Plastics Engineers Inc
- Society of Professional Journalists
- Society of Quality Assurance Incorporated
- Society of Saint Vincent de Paul Council of los Angeles
- Society of St Vincent de Paul Archdiocesan Council of Ok City
- Society of St Vincent de Paul Council of Metuchen NJ Inc
- Society of St Vincent de Paul Council of Northern Kentucky Inc
- Society of St Vincent de Paul Council of Pensacola-Tallahassee
- Society of St Vincent de Paul Diocesan Council of Columbus
- Society of St Vincent de Paul Dist Council of Lafayette Indiana Inc
- Society of St Vincent de Paul in the Archdiocese of Boston Inc
- Society of St Vincent de Paul of Waukesha County Inc
- Society of St Vincent de Paul Particular Council East St Louis
- Society of St Vincent de Paul Particular Council of San Mateo
- Society of St Vincent Depaul Baltimore Council Inc
- Society of St Vincent Depaul Cape and Islands District Inc
- Society of St Vincent Depaul Council of Louisville
- Society of Tribologists & Lubrication Engineers
- Society of Women Engineers
- Society of Women Environmental Professionals
- Society of Young People of Sant Caterina Mutual Benefit Grand Lodg
- Societys Assets Incorporated
- Soil and Water Conservation Society
- Sokol USA
- Solid Waste Association of North America Inc
- Sonoma County Safe and Sober Project Graduation
- Sons & Daughters Pearl Harbor Survivors Inc
- Sons in Retirement Incorporated
- Sons of Confederate Veterans Inc
- Sons of Italy in America
- Sons of Norway
- Sons of Union Veterans of the Civil War
- Soroptimist International of the Americas Inc
- Sound Generations
- South Carolina Alliance of Black School Educators
- South Carolina Alliance of Recovery Community Organization
- South Carolina Association of Certified Public Accountants
- South Carolina Congress of Parents and Teachers
- South Carolina Dental Association
- South Carolina Farm Bureau Federation
- South Carolina First Steps to School Readiness Board of Trustees
- South Carolina Society of Professional Engineers
- South Carolina State University National Alumni Association
- South Central Section of the Ninety-Nines Inc
- South Dakota Association for the Education of Young Children
- South Dakota Congress of Parents and Teachers
- South Dakota Municipal League
- South Nassau Communities Hospital
- South Texas Youth Soccer Association
- Southeastern Regional Medical Center
- Southeastern Universities Research Association Inc
- Southern California Outrigger Racing Association
- Southern Early Childhood Assoc
- Southern Off-Road Bicycle Association
- Southern Search & Rescue-Emergency Response Units
- Southwest Officials Association Inc
- Southwest Section of the Ninety-Nines Inc
- Southwest Wheelchair Athletic Organization
- Sovereign Military Order of the Temple of Jerusalem
- Spartan Athletic Club
- Special Military Active Recreational Travelers Club Inc
- Special Olympics Ohio Inc
- Special Olympics Wisconsin Inc
- Spellbinders
- Spinal Cord Society
- Spirit of America Foundation
- Spirit Soccer Club of Chester Co
- Spirithorse Therapeutic Riding Center
- Springpoint Senior Living Inc
- Spurwink-Ri
- Square Dance Minnesota Inc
- Sri Lanka Medical Association North America Inc
- St Augustine Diocesan Council Society of St Vincent de Paul Inc
- St Charles Booster Club
- St Charles North High School Boosters Club
- St Clair Health Corporation
- St George Pathfinders of America
- St Johns Community Services
- St Josephs Health Inc St Josephs University Medical
- St Vincent de Paul Council of Neenah-Menasha Inc
- Standup Parenting Inc
- Star Kids Scholarship Program
- Starlight Childrens Foundation
- State Association of Young Farmers of Texas
- State Charter Credit Unions in Florida Group Return
- State Chartered Credit Unions in North Carolina
- State Chartered Credit Unions in Oregon
- State Federation of Porcelain Art Clubs of Texas
- State Grange of Minnesota
- State Highway & Transportation Employees Association of Missouri
- State of California Grandmothers Club Inc
- State of West Virginia
- State Trooper Outreach Partnership
- State Universities Annuitants Association Illinois
- Steamship Historical Society of America Inc
- Steele County Council on Aging
- Steppingstone Foundation Inc
- Steuben Society of America
- Stoa
- Stratford Shakespearean Festival of America
- Structural Engineers Association of Texas Inc
- Student National Medical Association Inc
- Sunrise 2000 Inc
- Superchannel Worship Ministries Inc
- Supreme Assembly of the Social Order of the Beauceant
- Supreme Council of the Royal Arcanum
- Supreme Temple Daughters of the Nile
- Supreme Temple Pythian Sisters
- Surface Navy Association
- Surfing the Nations
- Susan G Komen Breast Cancer Foundation
- Swedish Womens Educational Association International Inc
- Sweet Adelines International Corporation
- The Society Inc
- The Society of Industrial and Office Realtors
- The Southeast Section of the Ninety Nines Inc