Nonprofits in Rockville, Maryland

Nonprofits in Rockville, Maryland. Browse 1,494 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

  1. Nevada Oncology Society

    EIN 542115069 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. New Heaven and Earth Assembly

    EIN 841711706 · Headquarters: ROCKVILLE, MD, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  3. New Lakewood Scout Sponsors Inc

    EIN 030387180 · Headquarters: ROCKVILLE, MD, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. New Mexico Society of Clinical Oncology

    EIN 850392445 · Headquarters: ROCKVILLE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. New Mount Pleasant Council No 13

    EIN 863153115 · Headquarters: ROCKVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. New Neighbor Interfaith Alliance

    EIN 933950899 · Headquarters: Rockville, MD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Nimatollahi Gonabadi Fnd of Metro Washington Dc Inc

    EIN 522115580 · Headquarters: Rockville, MD, US · Religion Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  8. Niyenola Foundation Inc

    EIN 334270124 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Nki Sa-a USA

    EIN 824701811 · Headquarters: Rockville, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  10. Nonprofit Montgomery Inc

    EIN 823602025 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Norbeck

    EIN 912128239 · Headquarters: Rockville, MD, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  12. Norbeck Country Club Inc

    EIN 530215869 · Headquarters: ROCKVILLE, MD, USA · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990

  13. Norbeck Manor Garden Club

    EIN 273502778 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. North American Association of Commencement Officers Inc

    EIN 141884982 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. North Bethesda Transportation Center

    EIN 521533121 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. North Bethesda Village Incorporated

    EIN 851505593 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. North Carolina Oncology Association

    EIN 260085378 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. North Texas Global Telecommunications Society

    EIN 752762428 · Headquarters: Rockville, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  19. Northwood Educational Foundation

    EIN 812746594 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  20. Notecraft Corp

    EIN 851537550 · Headquarters: Rockville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. Nourish Now Foundation Inc

    EIN 452404503 · Headquarters: ROCKVILLE, MD, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Ntee Initiative

    EIN 873331738 · Headquarters: Rockville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Ntshingwa Foundation International Inc

    EIN 934325596 · Headquarters: Rockville, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Nutainment Charities Incorporated

    EIN 474318490 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Ol Pathy Family Foundation Inc

    EIN 452617992 · Headquarters: ROCKVILLE, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Old Farm Swim & Paddle Tennis Club Inc

    EIN 520802035 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  27. Olney Cross Country Club

    EIN 862942859 · Headquarters: ROCKVILLE, MD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. On Est Ensemble Association

    EIN 832762112 · Headquarters: Rockville, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Onyx Cares Foundation Inc

    EIN 931433980 · Headquarters: ROCKVILLE, MD, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Open Circle Theatre Inc

    EIN 200978640 · Headquarters: ROCKVILLE, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Opportunity Maryland

    EIN 883116524 · Headquarters: ROCKVILLE, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 526056380 · Headquarters: Rockville, MD, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  33. Orange County Electrical Industry Health

    EIN 956041108 · Headquarters: rockville, MD, USA · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990

  34. Order of the Eastern Star of District of Columbia

    EIN 237137966 · Headquarters: ROCKVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Order of the Eastern Star of District of Columbia

    EIN 237137971 · Headquarters: Rockville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  36. Organizacion Cultural Unidos Por Llamamsillon

    EIN 814323289 · Headquarters: Rockville, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Organization of Child Care Directors of Montgomery County Inc

    EIN 521862985 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  38. Organization of Chinese Americans Inc

    EIN 237441824 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Orthobiologics Research Initiative Inc

    EIN 871630172 · Headquarters: Rockville, MD, US · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Our Village Trust Inc

    EIN 522212592 · Headquarters: Rockville, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  41. Out Came the Sun Foundation Inc

    EIN 262113448 · Headquarters: Rockville, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Outnumbered Inc

    EIN 333588659 · Headquarters: Rockville, MD, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Overlea Sewer Consortium

    EIN 833399112 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Overseas Cantonese Youth Association

    EIN 473287858 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Overseas Young Chinese Forum

    EIN 043461607 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Oxford Research Institute Inc

    EIN 522216549 · Headquarters: ROCKVILLE, MD, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Pa Arriba Foundation

    EIN 814005704 · Headquarters: Rockville, MD, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Palmer Park Seniors Housing Inc

    EIN 300017331 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Pan-african Leadership Institute in C

    EIN 412774706 · Headquarters: Rockville, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Paragon Debate Corporation

    EIN 852295220 · Headquarters: Rockville, MD, US · Youth Development · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. Paraguay Contigo Inc

    EIN 474980877 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Parallel Hope Schools Inc

    EIN 823717614 · Headquarters: Rockville, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Parent Booster USA Inc

    EIN 273202737 · Headquarters: ROCKVILLE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Parent Booster USA Inc

    EIN 454992576 · Headquarters: Rockville, MD, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  55. Part Two Foundation Inc

    EIN 394265044 · Headquarters: ROCKVILLE, MD, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  56. Partnership Foundation for Optometric Education

    EIN 311482758 · Headquarters: ROCKVILLE, MD, USA · Education · Latest available filing year: 2011 · Primary form: IRS Form 990

  57. Peace Mountain Theatre Company

    EIN 813398504 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  58. Pediatric Nursing Certification Board

    EIN 510188378 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Pediatric Oncology Research Fund in C

    EIN 395023808 · Headquarters: Rockville, MD, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Pediatric Pain Foundation Inc

    EIN 393456463 · Headquarters: Rockville, MD, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Peerless Rockville Historic Preservation Ltd

    EIN 521006116 · Headquarters: ROCKVILLE, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Peking University Alumni Association Inc

    EIN 522059431 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. People of Change Poc

    EIN 852541731 · Headquarters: Rockville, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Permanent Resident and Naturalized American Consortium Inc

    EIN 814417164 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  65. Peters Alley Inc

    EIN 832432634 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. Petey and Furends Inc

    EIN 844819015 · Headquarters: Rockville, MD, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. Philippine American Academy of Science and Engineering

    EIN 845166627 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Phoenix Computers Inc

    EIN 455619138 · Headquarters: Rockville, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Photo Chemical Machining Institute

    EIN 237102765 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Physician Parent Caregivers Inc

    EIN 900140284 · Headquarters: Rockville, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Pierre Fauchard Academy

    EIN 410648891 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Pierre Fauchard Academy Leader Fnd

    EIN 851303144 · Headquarters: ROCKVILLE, MD, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Pineapple Flyers Incorporated

    EIN 863809176 · Headquarters: Rockville, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Pink Warriors Inc

    EIN 993801048 · Headquarters: Rockville, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Pinkney Innovation Complex for Science & Technology at Mc Foundation Inc

    EIN 453787207 · Headquarters: ROCKVILLE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Playwrights Forum

    EIN 521698379 · Headquarters: ROCKVILLE, MD, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  77. Please Be Seated Inc

    EIN 843570526 · Headquarters: ROCKVILLE, MD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. Polish Drama Club

    EIN 462130972 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Polyhymnia Chamber Chorus

    EIN 463340959 · Headquarters: Rockville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Pop for a Cause

    EIN 861194709 · Headquarters: Rockville, MD, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Popayan Corporation

    EIN 383690338 · Headquarters: ROCKVILLE, MD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. Popstop Inc

    EIN 522218959 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  83. Potomac Institute

    EIN 863153051 · Headquarters: Rockville, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  84. Potomac Valley Alumnae Chapter Fund Incorporated

    EIN 521497672 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Potomac Woods Swim Club Inc

    EIN 520849510 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Power of the Highest Intl Ministrie

    EIN 010933272 · Headquarters: Rockville, MD, USA · Religion Related · Latest available filing year: 2013 · Primary form: IRS Form 990

  87. Prabalta Inc

    EIN 991854612 · Headquarters: Rockville, MD, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Premier Athletic Performance Association Inc

    EIN 208717214 · Headquarters: Rockville, MD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Premier Homecare Inc

    EIN 522224485 · Headquarters: ROCKVILLE, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Pride of Montgomery Elks Lodge No 347

    EIN 800445960 · Headquarters: Rockville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  91. Pride Youth Services Inc

    EIN 522294751 · Headquarters: Rockville, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Primary Montessori Day School Inc

    EIN 522081428 · Headquarters: Rockville, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Pro Players Charity - Signature Inc

    EIN 821366280 · Headquarters: Rockville, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  94. Proffitt Brothers Foundation Inc

    EIN 831229916 · Headquarters: ROCKVILLE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  95. Property Management Association

    EIN 521116559 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Pta Delaware Congress

    EIN 237077021 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Pta Delaware Congress

    EIN 237077025 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Pta Delaware Congress

    EIN 520845316 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Pta Delaware Congress

    EIN 520857101 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Pta Delaware Congress

    EIN 521636675 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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