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

  1. Improved Benevolent & Protective Order of Elks of the World

    EIN 521086252 · Headquarters: La Plata, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Improved Benevolent & Protective Order of Elks of the World

    EIN 521086349 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Improved Benevolent & Protective Order of Elks of the World

    EIN 521088928 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Improved Benevolent & Protective Order of Elks of the World

    EIN 521294699 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Improved Benevolent & Protective Order of Elks of the World

    EIN 521366694 · Headquarters: Indian head, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Improved Benevolent & Protective Order of Elks of the World

    EIN 521382058 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Improved Benevolent & Protective Order of Elks of the World

    EIN 521497329 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Improved Benevolent & Protective Order of Elks of the World

    EIN 521760043 · Headquarters: Easton, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  9. Improved Benevolent & Protective Order of Elks of the World

    EIN 800622274 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Improved Benevolent & Protective Order of Elks of the World

    EIN 900629878 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Improved Benevolent & Protective Order of Elks of the World

    EIN 901121893 · Headquarters: EASTON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Improved Benevolent & Protective Order of the Elks

    EIN 237621284 · Headquarters: CRISFIELD, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Improved Benevolent and Protective Lodge 1043

    EIN 520612720 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  14. Improved Benevolent and Protective Order of Elks of the World

    EIN 300589534 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Improved Benevolent Protective Order of Elks of the World

    EIN 270198247 · Headquarters: Hebron, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Improved Order of Redmen Degree of Pocahontas of Maryland

    EIN 237591545 · Headquarters: Williamsport, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Improved Order of Redmen Degree of Pocahontas of Pennsylvania

    EIN 236269092 · Headquarters: Rising Sun, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Improved Order of Redmen Degree of Pocahontas of Pennsylvania

    EIN 237140783 · Headquarters: Rising Sun, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Improved Order of Redmen Degree of Pocahontas of Pennsylvania

    EIN 237140795 · Headquarters: Rising Sun, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Improved Order of Redmen Degree of Pocahontas of Pennsylvania

    EIN 237140817 · Headquarters: Rising Sun, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Improved Order of Redmen Degree of Pocahontas of Pennsylvania

    EIN 237148743 · Headquarters: Rising Sun, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Improving Gifted Intellects Llc

    EIN 821268007 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  23. In Christ Washington Fellowship

    EIN 462330044 · Headquarters: NORTH BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  24. Inclusion Diversity Equity and Awareness Working Group

    EIN 260558876 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Independent Electrical Contractor O F Maryland Inc

    EIN 902373646 · Headquarters: Kingsville, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  26. Independent Energy Human Resources Assoc Formerly IPHRA

    EIN 521949443 · Headquarters: Towson, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Independent Hose Company

    EIN 520363394 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Independent Insurance Agents of Maryland Inc

    EIN 520578409 · Headquarters: STEVENSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Independent Living Foundation Inc

    EIN 521783090 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  30. Independent Order of Odd Fellows

    EIN 237605276 · Headquarters: Hyattsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Independent Order of Odd Fellows

    EIN 237607916 · Headquarters: Edgemere, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Independent Order of Odd Fellows

    EIN 237607920 · Headquarters: Ft Howard, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Independent Order of Odd Fellows

    EIN 364775515 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Independent Order of Odd Fellows

    EIN 521431522 · Headquarters: Edgemere, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Independent Order of Odd Fellows

    EIN 521432880 · Headquarters: Clear Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Independent Order of Odd Fellows

    EIN 521433506 · Headquarters: Ft Howard, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Independent Order of Odd Fellows

    EIN 521449674 · Headquarters: PIKESVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  38. Independent Order of Odd Fellows

    EIN 526046194 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Independent Order of Odd Fellows 97 Poolesville Ld

    EIN 521428089 · Headquarters: Poolesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Indian American Urological Association Inc

    EIN 521226601 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Indian Head Chapt 576 Women of the Moose

    EIN 526046355 · Headquarters: Bryans Road, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Indian Head Highway Area Action Council Inc

    EIN 141878772 · Headquarters: Fort Washington, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  43. Indian Head Lodge No 1712 Loyal Order of Moose 1712

    EIN 526047091 · Headquarters: INDIAN HEAD, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Indian Lake Christian Service Camp

    EIN 521549437 · Headquarters: DARLINGTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  45. Indian Landing Boat Club of Anne Arundel County Inc

    EIN 520598817 · Headquarters: MILLERSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Indian Lookout Conservation Club of Emmitsburg Maryland Inc

    EIN 521049239 · Headquarters: Emmitsburg, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Industrial Representatives Association Inc

    EIN 223628257 · Headquarters: Aberdeen, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Industrial Unlimited Co

    EIN 541827206 · Headquarters: Capitol Heights, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Industry and Local 338 Welfare Fund C/o Associated Administrators Llc

    EIN 131818220 · Headquarters: SPARKS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Infant Mental Health Association of Maryland & Dc Inc

    EIN 850667619 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Infinity Home Resources Inc

    EIN 871371851 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  52. Infinity Solutions Group

    EIN 845124894 · Headquarters: GLEN BURNIE, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  53. Infinity Sports Group

    EIN 830729320 · Headquarters: Pasadena, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. Infonomics Labs Inc

    EIN 871252797 · Headquarters: BETHESDA, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  55. Inforce

    EIN 680673603 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  56. Inform USA

    EIN 237235032 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Information Systems Security Association

    EIN 363888499 · Headquarters: North Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Information Systems Security Association

    EIN 901133313 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Informed Choice Maryland Corporation

    EIN 842960365 · Headquarters: HAGERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Infosymbiotic Systems Society

    EIN 992006458 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Infusion Nurses Society Maryland Capitol Chapter

    EIN 061473317 · Headquarters: Mount Airy, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Inheritance Ministries Inc

    EIN 521502370 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Inman Utilities Inc

    EIN 521626227 · Headquarters: Bryans Road, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Inn Flying Club Inc

    EIN 526081613 · Headquarters: Gaithersburg, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Inner West St Assoc Inc

    EIN 521636691 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Inspiration Community

    EIN 521845318 · Headquarters: OWINGS MILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  67. Institute for Biological Recognition and Catalysis Inc

    EIN 521457929 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. Institute for Energy & Environmental Research

    EIN 521395376 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Institute for the Study of Imagination

    EIN 042997199 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  70. Institute of Hazardous Materials Management

    EIN 521375444 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Institute of Industrial Engineers Inc

    EIN 546052571 · Headquarters: Severn, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Institute of Internal Auditors

    EIN 237404515 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. Institute of Management Accountants Inc

    EIN 237353196 · Headquarters: Grasonville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Institute of Management Accountants Inc

    EIN 237354300 · Headquarters: SALISBURY, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Institute of Management Accountants Inc

    EIN 521556156 · Headquarters: Grasonville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Institute of Real Estate Management Greater Metropolitan Washington Ch No 8

    EIN 510203836 · Headquarters: MONROVIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Institute of Real Estate Management Maryland Chapter 16

    EIN 237453803 · Headquarters: OWINGS MILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Institute of Real Estate Management West Central Maryland Chapter No 92

    EIN 521200100 · Headquarters: MONROVIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Institute of Retired Persons

    EIN 333702606 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Insurance Knowledge Evolution Ike

    EIN 863851056 · Headquarters: Ashton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Insurance Professionals of Baltimore

    EIN 526072440 · Headquarters: TIMONIUM, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Int'l Assn of Heat and Frost Insulators and Allied Workers Local No 24

    EIN 530022785 · Headquarters: LAUREL, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Int'l Assoc of H&f Insul & Allied Wkrs

    EIN 530088300 · Headquarters: LANHAM, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Int'l Brotherhood 963 Bpat of Painters

    EIN 530180608 · Headquarters: LANHAM, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Inteleos

    EIN 510184277 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Intelligent Transportation Society of America Its America

    EIN 521965122 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. InterAmerican University of Puerto Rico Metropoli PAD PreLaw Chapter

    EIN 943104002 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. InterAmerican University of Puerto Rico San Germain PAD Prelaw Chapter

    EIN 943104116 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Interdenominational Church Ushers

    EIN 521528861 · Headquarters: GLEN BURNIE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Interfaith Community Action Council Inc

    EIN 521630527 · Headquarters: TEMPLE HILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Interfaith Housing Coalition Inc

    EIN 521559137 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Interfaith Service Coalition of Hancock Maryland Inc

    EIN 521679419 · Headquarters: HANCOCK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Interindustry Economic Research Fund Inc

    EIN 520907015 · Headquarters: COLLEGE PARK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Intermodal Association of North America

    EIN 521753485 · Headquarters: CALVERTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. International Academy of Family Lawyers

    EIN 980118753 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. International Academy of Neichia Arts and Sciences

    EIN 521342348 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. International Adsorption Society Inc

    EIN 311276231 · Headquarters: Monrovia, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. International Alliance of Theatrical Stage Employees Local 22 - Welfare Fund

    EIN 521021473 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. International Alliance Theatrical & Stage Employees Local 819

    EIN 526056635 · Headquarters: Bethesda, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. International Alliance Theatrical Stage Employees & Moving Picture

    EIN 256061859 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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