Unknown & Unclassified nonprofits in Maryland
Unknown & Unclassified nonprofits in Maryland. Browse 10,672 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
- National Aircraft Finance Assoc Inc
EIN 581794969 · Headquarters: EDGEWATER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Alliance for Eye and Vision Research
EIN 522030304 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Alliance of Postal and Federal Employees
EIN 520847821 · Headquarters: FORT WASHINGTON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Alliance of Postal and Federal Employees
EIN 520910675 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Ambucs Inc
EIN 834362395 · Headquarters: Parkville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National American Glass Club
EIN 900192253 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Asphalt Pavement Association Inc
EIN 530231198 · Headquarters: GREENBELT, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Assoc of Benefits and Insurance Professionals-Maryland Chapter Inc
EIN 521383966 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Assoc of Flood & Stormwater Mgmt Agencies
EIN 521102917 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Assoc of Ltr Carriers Br 638
EIN 526055605 · Headquarters: Ellerslie, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Association for Catering and Events
EIN 581400040 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association For Children Of Alcoholics
EIN 942865311 · Headquarters: Bel Air, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- National Association for Chinese Peaceful Unification
EIN 473699634 · Headquarters: Elkkridge, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association for Hearing and Speech Action
EIN 530196545 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association for the Advancement of Colored People
EIN 526074656 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- National Association of Black Accountants Division of Firms
EIN 342064120 · Headquarters: Pikesville, MD, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- National Association of Black Accountants Inc
EIN 237097490 · Headquarters: GREENBELT, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Charitable Gift Planners
EIN 521710226 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Credit Management Inc
EIN 521972771 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Development Companies
EIN 521260579 · Headquarters: Bethesda, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Development Companies (NADCO)
EIN 521484169 · Headquarters: Bethesda, MD, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Association of Drug Diversion Investigators Inc
EIN 521660752 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Fsa County Office Employees
EIN 526055633 · Headquarters: Chestertown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Association of Government Employees
EIN 202998803 · Headquarters: PERRY POINT, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Association of Guardsmen Inc Baltimore Chapter
EIN 222450154 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Guardsmen Inc C/o Barry Granger Washington Chapter
EIN 521267033 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- National Association of Housing & Redevelopment Officials
EIN 863656453 · Headquarters: ARNOLD, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- National Association of Insurance & Financial Advisors of Md At-large
EIN 474734084 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 237057445 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 273868279 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 320408583 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Judiciary Interpreters & Translators Inc
EIN 112945554 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Letter Carriers
EIN 237114899 · Headquarters: Columbia, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Association of Letter Carriers
EIN 521332049 · Headquarters: laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 526056383 · Headquarters: HAGERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 526066027 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Association of Letter Carriers
EIN 526074565 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 526074568 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Letter Carriers
EIN 901500184 · Headquarters: Ellerslie, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Association of Letter Carriers Branch 3825
EIN 526054692 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Letter Carriers Oriole Branch 176
EIN 520736006 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Miniature Enthusiasts
EIN 311454754 · Headquarters: Damascus, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Miniature Enthusiasts
EIN 900752960 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Negro Busin Ess and Professional Womens C
EIN 522174770 · Headquarters: Mitchellville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Association of Negro Business and Professional Womens C
EIN 520796540 · Headquarters: Pikesville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- National Association of Nigerian
EIN 465724843 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Orthopaedic Nurses Inc
EIN 251420121 · Headquarters: Forest Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Professional Asian-american Women
EIN 521555185 · Headquarters: rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Association of School Psychologists
EIN 237044121 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of School Psychologists Education & Research Trust
EIN 521737958 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of State Directors of Career Technical Education Consortium
EIN 521646898 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of State Utility Consumer Advocates (Nasuca)
EIN 591986067 · Headquarters: ODENTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Surety Bond Producers Inc
EIN 132657769 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- National Association of Tax Professionals Inc
EIN 521913468 · Headquarters: Charlotte Hall, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of the Deaf
EIN 941358295 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Women in Construction
EIN 526054684 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Association of Women in Construction
EIN 526075644 · Headquarters: Parkton, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- National Associationof Unemployment Insurance Appeals Professionals
EIN 942768000 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Asssociation of Hispanic Nurses
EIN 452717113 · Headquarters: White Plains, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Auto Auction Association
EIN 846045987 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Automatic Sprinkler Industry Welfare Fund
EIN 530215881 · Headquarters: Landover, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Automatic Sprinkler Local 669 Ua Education Fund
EIN 526055213 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Automatic Sprinkler Metal Trades Welfare Fund
EIN 237351551 · Headquarters: LANDOVER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Barrel & Drum Assoc Inc
EIN 530191381 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National BDPA Inc
EIN 232323458 · Headquarters: Largo, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Black Child Development Institute
EIN 520908178 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Black Nurses Association Inc
EIN 208869794 · Headquarters: Pikesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Black Nurses Association Inc
EIN 822542775 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- National Black Worker Center Project Inc
EIN 474262220 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- National Board for Certification in Occupational Therapy Inc
EIN 521620299 · Headquarters: GAITHERSBURG, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Board of Nutrition Support Certification Inc
EIN 521946325 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Board of Podiatric Medical Examiners
EIN 440663070 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Area Council Boy Scouts of America
EIN 530204610 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Area Garden Clubs Environmental Consultants Council
EIN 273509112 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- National Capital Area Lhasa Apso Club
EIN 237108266 · Headquarters: HUNTINGTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Capital Area Skeptics
EIN 521522327 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Capital Area Square Dance Leaders Association Inc
EIN 526056370 · Headquarters: HOLLYWOOD, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Capital Astronomers
EIN 521129165 · Headquarters: DAVIDSONVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Capital B'nai B'rith Housing Foundation Inc
EIN 521063283 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Chapter of the American Concrete Institute Inc
EIN 521152741 · Headquarters: CATONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Capital Club Managers' Assoc
EIN 521983728 · Headquarters: POTOMAC, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital English Setter Club
EIN 521688203 · Headquarters: baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Capital Foundation for Homecrest House
EIN 521517016 · Headquarters: Gaithersburg, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Orchid Society
EIN 521187971 · Headquarters: BROOKEVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Capital Rabbit Breeders Association Inc
EIN 621223805 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Capital Region of Data Administration Mgmt Assn Ncr-dama
EIN 541444575 · Headquarters: Edgewater, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Capital Region Swat Association Inc
EIN 830448699 · Headquarters: MONROVIA, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Capitol Chapter Musical Box Society International
EIN 223215813 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Career Technical Education Foundation
EIN 731086246 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Caregiving Foundation
EIN 521422395 · Headquarters: Dunkirk, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Center for Juvenile Justice Reform
EIN 832417951 · Headquarters: UPPR MARLBORO, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Center for Mediation Education Inc
EIN 521443299 · Headquarters: Mount Airy, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Center for Nutrition and Fatty Acid Research Inc
EIN 043178432 · Headquarters: GAITHERSBURG, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- National Center for Victims of Inte Rnet Crimes Incorporated
EIN 393854644 · Headquarters: Glen Burnie, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Center to Encourage Judaism
EIN 521194529 · Headquarters: KENSINGTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- National Cheng Kung Alumni Assoc Washington Dc
EIN 812558780 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- National Children's Center
EIN 530260523 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Christ Child Society Inc
EIN 521221811 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Coalition Building Institu
EIN 222627168 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Coalition of 100 Black Women Anne Arundel County Chapter
EIN 611403821 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N