Nonprofits in Winthrop, Maine

Nonprofits in Winthrop, Maine. Browse 58 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. Alpha Delta Kappa Sorority Inc

    EIN 016027621 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Legion Auxiliary

    EIN 016018665 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Legion Post # 40

    EIN 010201854 · Headquarters: Winthrop, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. American Society of Radiologic Technologists

    EIN 016029458 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Amvets

    EIN 473093505 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  6. Ancient Free & Accepted Masons of M

    EIN 237530845 · Headquarters: WINTHROP, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Ancient Free & Accepted Masons of Maine

    EIN 237531009 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Ancient Frontiers Foundation

    EIN 651272019 · Headquarters: Winthrop, ME, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  9. Annabessacook Lake Improvement Association

    EIN 931496408 · Headquarters: Winthrop, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Autism Society of Maine D/b/a Asm

    EIN 010407346 · Headquarters: WINTHROP, ME, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Balat Senter

    EIN 260813784 · Headquarters: WINTHROP, ME, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Baldwin Hill Conservation Burial Ground

    EIN 844936563 · Headquarters: Winthrop, ME, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Central Maine Water Council

    EIN 822999212 · Headquarters: Winthrop, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Coda Chorus C/o Arline Andrews Lovejoy

    EIN 010422788 · Headquarters: WINTHROP, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Cotttage Road Association

    EIN 352844620 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Disabled American Veterans

    EIN 911951159 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Friends of Maine State Parks

    EIN 010512411 · Headquarters: Winthrop, ME, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Friends of the Charles M Bailey Public Library

    EIN 463301616 · Headquarters: Winthrop, ME, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Hillanoalers Snow Mobile Club

    EIN 237097889 · Headquarters: Winthrop, ME, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  20. International Association of Lions Clubs

    EIN 016019099 · Headquarters: WINTHROP, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. Keep Winthrop Warm Inc

    EIN 825388470 · Headquarters: Winthrop, ME, USA · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  22. Kelsey Stoneton Memorial Fund C/o Joel Stoneton

    EIN 472655348 · Headquarters: WINTHROP, ME, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  23. Knights of Columbus

    EIN 010371625 · Headquarters: Winthrop, ME, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  24. Lakers Track Club and Timing

    EIN 822793527 · Headquarters: Winthrop, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Maine High Adventure Staff Association

    EIN 274519803 · Headquarters: Winthrop, ME, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Maine Jci Senate Inc

    EIN 830816511 · Headquarters: Winthrop, ME, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Maine Parent Teacher Association Inc

    EIN 010468135 · Headquarters: Winthrop, ME, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  28. Maranacook Lake Association Inc

    EIN 237411541 · Headquarters: Winthrop, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Mid-Maine Majestix Field Hockey

    EIN 331179776 · Headquarters: Winthrop, ME, USA · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  30. Modern Woodmen of America

    EIN 813939113 · Headquarters: WINTHROP, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Northeast Laboratory Conference

    EIN 825358320 · Headquarters: Winthrop, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Patrons of Husbandry Maine State Grange

    EIN 237580839 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Policing Education & Active Civic Engagement Inc

    EIN 814525465 · Headquarters: Winthrop, ME, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  34. Protectors of Animal Life Society

    EIN 010369020 · Headquarters: WINTHROP, ME, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Rambler Youth Football

    EIN 833894877 · Headquarters: Winthrop, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Redneck Outdoor Ministries

    EIN 820990479 · Headquarters: WInthrop, ME, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Rotary International

    EIN 016018714 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Royal Arch Masons of the State of 37 Winthrop Chapter

    EIN 237634141 · Headquarters: WINTHROP, ME, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. Sexual Assault Crisis & Support Center

    EIN 222979419 · Headquarters: WINTHROP, ME, USA · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990

  40. St Francise Xavier Catholic Womens Club

    EIN 943442034 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  41. The Kennebec Land Trust

    EIN 010440729 · Headquarters: WINTHROP, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Tres Dias of Maine

    EIN 753191093 · Headquarters: Winthrop, ME, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Waterville Lions Club

    EIN 582118648 · Headquarters: WINTHROP, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  44. Weber Memorial Post 9526 of the Veterans of Foreign Wars Winthrop

    EIN 352380422 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Western Kennebec Economic Development Alliance

    EIN 010404744 · Headquarters: Winthrop, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. Winthrop Administrators Association

    EIN 834107524 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Winthrop Area Rotary Foundation Inc

    EIN 463231943 · Headquarters: Winthrop, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  48. Winthrop Athletic Complex Committee

    EIN 873162604 · Headquarters: Winthrop, ME, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Winthrop Education

    EIN 010494078 · Headquarters: WINTHROP, ME, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Winthrop Educators Assoication

    EIN 010504103 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Winthrop Food Pantry

    EIN 010542223 · Headquarters: Winthrop, ME, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Winthrop Hot Meal Kitchen

    EIN 452692532 · Headquarters: Winthrop, ME, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Winthrop Lakes Region Chamber of Co

    EIN 200581750 · Headquarters: Winthrop, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Winthrop Maine Historical Society

    EIN 452220295 · Headquarters: Winthrop, ME, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Winthrop Professional Ems Providers Local 5176

    EIN 844043177 · Headquarters: Winthrop, ME, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. Winthrop Public Library Foundation

    EIN 464852968 · Headquarters: Winthrop, ME, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Winthrop Sports Boosters Inc

    EIN 462824150 · Headquarters: Winthrop, ME, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. YMCA Camp of Maine

    EIN 010186800 · Headquarters: Winthrop, ME, United States · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990