Nonprofits in Maryland
Nonprofits in Maryland. Browse 47,413 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- American Public University Student Chapter
EIN 461776678 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- American Racing Performance Museum
EIN 811903397 · Headquarters: Lothian, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Railway Engineering and Maintenance-of-way Association
EIN 360729465 · Headquarters: LANHAM, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Red Magen David for Israel Inc
EIN 521089603 · Headquarters: Silver Spring, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- American Registry of Pathology
EIN 521073470 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Rental Association of Maryland
EIN 263710135 · Headquarters: Fort Washington, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Restroom Association Inc
EIN 203581202 · Headquarters: CATONSVILLE, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Rhododendron Society
EIN 930863110 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Rifle Association Foundation Inc
EIN 612095387 · Headquarters: Baltimore, MD, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Rifle Association Inc
EIN 301355077 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American River Cleaning Operation
EIN 843172373 · Headquarters: Frederick, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Rollerskaters Inc
EIN 541619601 · Headquarters: Owings Mills, MD, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- American Rose Society
EIN 581783824 · Headquarters: Hampstead, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- American Rose Society
EIN 581832648 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- American Salute Majorette & Drum Corp
EIN 521158044 · Headquarters: Waldorf, MD, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- American Samueltheology College and University
EIN 461739869 · Headquarters: GLENARDEN, MD, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Scandinavian Association
EIN 521488787 · Headquarters: Germantown, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American School of Science and Technology of Nigeria
EIN 800805894 · Headquarters: UPPER MARLBORO, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Seafood Jobs Alliance Inc
EIN 814103441 · Headquarters: ANNAPOLIS, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- American Small Manufacturers Coalit
EIN 382945771 · Headquarters: MT AIRY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Biochemistry and Molecular Biology Inc
EIN 526050165 · Headquarters: Rockville, MD, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Cellular and Computational Toxicology Inc
EIN 272792207 · Headquarters: Gaithersburg, MD, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- American Society for Clinical Laboratory Science
EIN 237082452 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- American Society for Deaf Children
EIN 521297104 · Headquarters: WOODBINE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Investigative Pathology Inc
EIN 946079945 · Headquarters: ROCKVILLE, MD, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Matrix Biology
EIN 912055099 · Headquarters: ROCKVILLE, MD, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- American Society for Microbiology Md Branch Ltd
EIN 010940876 · Headquarters: Towson, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Society for Nutrition Foundation Inc
EIN 452473558 · Headquarters: ROCKVILLE, MD, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Nutrition Inc
EIN 311507752 · Headquarters: ROCKVILLE, MD, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Parenteral and Enteral Nutrition
EIN 521161382 · Headquarters: Silver Spring, MD, USA · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990
- American Society for Pharmacology & Experimental Therapeutics Incorporated
EIN 586032060 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Photogrammetry and Remote Sensing Inc
EIN 753029150 · Headquarters: Bethesda, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- American Society for Photogrammetry and Remote Sensing Inc
EIN 753029173 · Headquarters: Bethesda, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- American Society for Photogrammetry and Remote Sensing Inc
EIN 753029338 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- American Society for Reconstructive Transplantation
EIN 800214742 · Headquarters: Towson, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society for Training and Development
EIN 264703757 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Addiction Medicine
EIN 133177396 · Headquarters: ROCKVILLE, MD, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990
- American Society of Addiction Medicine Inc
EIN 521946917 · Headquarters: Baltimore, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Agricultural Engineers
EIN 311178891 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Agricultural Engineers
EIN 521503913 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Appraisers
EIN 521484600 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Society of Civil Engineers - Md
EIN 237381285 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- American Society of Consulting Arborists
EIN 237207366 · Headquarters: FOREST HILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- American Society of Heating Refrig & Air Cond Engineers Inc
EIN 526059291 · Headquarters: ANNAPOLIS JUNCTION, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society of Heating Refrigerating & A-c Engineers
EIN 261401704 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Society of Human Genetics
EIN 521419397 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society of Hypertension
EIN 522265008 · Headquarters: Annapolis, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- American Society of Interior Designers
EIN 237417531 · Headquarters: HANOVER, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- American Society of Media Photographers Inc
EIN 911913230 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Society of Military Comptrollers Southern Maryland Cha
EIN 262556501 · Headquarters: Patuxent River, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- American Society of Nuclear Cardiology Foundation
EIN 201041134 · Headquarters: BETHESDA, MD, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- American Society of Peritoneal Surface Malignancies
EIN 264449658 · Headquarters: Clarksville, MD, US · Medical Research · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- American Society of Plant Biologists
EIN 530258999 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Society of Plumbing Engineers DbaBaltimore Chapter
EIN 522040544 · Headquarters: Annapolis Junction, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- American Society of Plumbing Engineers Washington Dc Chapter
EIN 541839472 · Headquarters: Prince Frederick, MD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Professional Estimators Baltimore Chapter 21 In
EIN 264625273 · Headquarters: Maryland Line, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Society of Psychoanalytic Physicians
EIN 237156006 · Headquarters: Germantown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Special Hockey Association Inc
EIN 331111482 · Headquarters: POTOMAC, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Speech-Language-Hearing Association
EIN 530240474 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Speech-language-hearing Foundation
EIN 526055761 · Headquarters: ROCKVILLE, MD, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Sports Builders Association
EIN 132561230 · Headquarters: FOREST HILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- American Sports Builders Foundation
EIN 933874588 · Headquarters: FOREST HILL, MD, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- American Sports Education Institute
EIN 362941962 · Headquarters: silver spring, MD, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- American Staffing Association
EIN 522144514 · Headquarters: Timonium, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- American Staffing Association
EIN 912005729 · Headquarters: Cabin John, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- American Statistical Association
EIN 521650948 · Headquarters: Glen Burnie, MD, US · Science & Technology · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- American Statistical Association
EIN 521703245 · Headquarters: APG, MD, US · Science & Technology · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- American String Teachers Association Incorporated
EIN 141973107 · Headquarters: Joppa, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American String Teachers Association Incorporated
EIN 526073907 · Headquarters: Baltimore, MD, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- American Student Association Inc
EIN 461117433 · Headquarters: Gaithersburg, MD, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- American Students Fund Inc
EIN 522272692 · Headquarters: Cockeysville, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Studio Orchestra
EIN 271782845 · Headquarters: COLUMBIA, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- American Sudanese Partnership Institution for Rehabilitation And
EIN 873013020 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- American Synod Inc
EIN 844231556 · Headquarters: Burtonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Tennis Association
EIN 472253381 · Headquarters: Largo, MD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- American Trauma Society
EIN 521047672 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Treibball Association
EIN 274396350 · Headquarters: Germantown, MD, US · Animal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- American Turkish Association Inc
EIN 237302182 · Headquarters: ROCKVILLE, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Urogynecologic Society
EIN 953388558 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Urological Association
EIN 430691437 · Headquarters: Linthicum, MD, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990
- American Urological Association Inc
EIN 522205122 · Headquarters: LINTHICUM HTS, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990
- American Values Foundation Inc
EIN 270679604 · Headquarters: Thurmont, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- American Vaulting Association
EIN 522346375 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Vaulting Association
EIN 990509536 · Headquarters: La Plata, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Veterans of World War Ii Korea and Vietnam
EIN 521352809 · Headquarters: Waldorf, MD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- American Veterans of World War Ii Korea and Vietnam
EIN 521436224 · Headquarters: CUMBERLAND, MD, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- American Veterans of World War Ii Korea and Vietnam (Amvets)
EIN 526067364 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- American Veterans of World War Ii Korea and Vietnam (Amvets) Services Foun
EIN 521167416 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Veterans of World War Ii Sons of Amvets
EIN 521942441 · Headquarters: MIDDLETOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Veterans of Wwii-post 2 Sons of Amvets
EIN 521721701 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- American Volkssport Association Inc
EIN 113724157 · Headquarters: Laurel, MD, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521403226 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521511208 · Headquarters: Bel Air, MD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521535523 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521540037 · Headquarters: Olney, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521639176 · Headquarters: Bowie, MD, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 521665323 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- American Volkssport Association Inc
EIN 812748459 · Headquarters: Eldersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- American Wheat Mission Inc
EIN 521826859 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- American Wolkssport Association Inc
EIN 521563929 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N