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Data / Nonprofits / Hawaii / Mililani

Nonprofits in Mililani, HI: 207 registered with the IRS

207 nonprofits are registered with the IRS in Mililani, HI, 172 of them 501(c)(3) charities; the 33 that report revenue took in $36.4 million. The largest by revenue: Hanalani Schools ($16.4 million), Mililani Town Association ($11.4 million), International Outreach Services ($2.7 million). Most common causes: recreation and sports (33), arts, culture and humanities (21), religion-related (19).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Hanalani SchoolsEducation501(c)(3)1974$16.4 million$49.9 million2025-07
Mililani Town AssociationHousing and shelter501(c)(4)2016$11.4 million$33.6 million2025-03
International Outreach ServicesHuman services501(c)(3)2011$2.7 million$2.1 million2024-12
Rainbow Learning AcademyEducation501(c)(3)2023$933,160$64,3152025-12
Kidz Kare EnterprisesHuman services501(c)(3)2003$711,639$259,8552025-12
Hawaii Insurers Council501(c)(6)1987$697,805$1.9 million2025-08
Ohana Arts IncArts, culture and humanities501(c)(3)2010$687,398$382,0462025-08
Mauliola KeehiArts, culture and humanities501(c)(3)2019$360,489$214,7572025-12
Miliani High School Music Booster Club501(c)(3)1978$254,578$167,3092025-06
Rescue Kitties of HawaiiAnimal-related501(c)(3)2021$230,024$89,6812025-12
United States Bowling Congress IncRecreation and sports501(c)(3)2004$217,058$64,3242025-07
Aloha Aquatics - MililaniRecreation and sports501(c)(3)2002$156,607$89,6532025-12
Masonry Institute of Hawaii501(c)(5)1974$152,250$415,4742024-12
WestsidealiveReligion-related501(c)(3)2022$135,988$21,7522025-12
Oahu Babe Ruth LeagueRecreation and sports501(c)(3)2014$133,250$119,2412024-12
Hawaiian Civic Club of WahiawaArts, culture and humanities501(c)(3)2014$128,521$30,3632025-03
McAh FoundationEducation501(c)(3)2023$102,538$55,9742024-12
Mililani High School PtsoEducation501(c)(3)2008$97,981$3,0832026-06
Cat People of OahuAnimal-related501(c)(3)2019$92,791$9,9452024-12
Landscape Industry Servicing and Improvement ProgramCommunity improvement and capacity building501(c)(6)2014$83,020$416,0672024-12
Tile Contractors Association of Hawaii501(c)(6)1992$79,042$168,0882024-12
Masonry Construction Industry Improvement Program501(c)(6)1986$78,826$99,9532025-08
Foundation for the Rotary Club of Mililani SunrisePhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$75,817$184,8082025-12
Fightstory IncMental health and crisis intervention501(c)(3)2023$67,391$5892026-01
Ukwanshin KabudanArts, culture and humanities501(c)(3)2009$66,721$113,2992024-12
Ralph Ajifu Ffa Memorial FoundationFood, agriculture and nutrition501(c)(3)2021$66,564$814,6442024-12
Tile Promotion Trust Fund501(c)(6)1978$63,550$320,3392024-12
Hawaii - American Nurses AssociationHealth care501(c)(6)2020$61,936$95,0332024-12
Hoomau Fire AcademyYouth development501(c)(3)2023$56,337$22,5482024-12
Landscape Association of HawaiiPublic and societal benefit501(c)(6)2014$42,739$297,6412024-12
Mililani Ike Elementary School Pto IncEducation501(c)(3)2005$38,618$14,1672025-06
Dyslexia Center of the Pacific Inc DCPEducation501(c)(3)2005$37,297$4482025-09
Hispanic Chamber of Commerce HawaiiArts, culture and humanities501(c)(3)2020$25,610$13,6062024-12
735 Ohana Warriors IncPublic and societal benefit501(c)(3)2024$0$02025-10
808 Rebels BaseballRecreation and sports501(c)(3)2026
Agape Japanese Baptist ChurchReligion-related501(c)(3)1963
Aloha Chapter Holy Royal Arch MasonsMutual and membership benefit501(c)(10)2008$0$02025-12
Aloha Prince Hall Grand Commandery Knight Templar Jurisdiction of HiMutual and membership benefit501(c)(10)2017$0$02025-09
Aloha State Bicycle Racing AssociationRecreation and sports501(c)(3)2019$0$1,5002023-12
Alpha Delta Kappa Sorority Inc501(c)(7)1970$0$02026-05
American Postal Workers Union501(c)(5)1973$0$02025-12
American Volkssport Association Inc501(c)(3)1987$0$02026-06
Ask4nationsReligion-related501(c)(3)2022$0$02025-12
Ballistic Soccer Club HawaiiRecreation and sports501(c)(3)2023$12025-12
Ben and Miriam Lau FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2002$2.7 million2024-12
Better Together HawaiiHuman services501(c)(3)2017$0$02025-12
Beyond the 4 WallsReligion-related501(c)(3)2003
Bleed Blue Athletic Foundation IncYouth development501(c)(3)2024
Blue Knights Motorcycle Club501(c)(10)1989$0$02025-12
Calvary Chapel Central Oahu501(c)(3)1992
Central Oahu Pickleball AssociationRecreation and sports501(c)(3)2026
Chole S RescueAnimal-related501(c)(3)2023$0$02025-12
Christ Lutheran Church501(c)(3)1988
Chun-Hoon Cousins SocietyRecreation and sports501(c)(7)2021$0$02025-12
Damien and Marianne Catholic Conference501(c)(3)2020$0$02025-12
Delta Kappa Gamma Society501(c)(6)1965$0$02024-06
Delta Kappa Gamma Society International501(c)(6)1965$0$02026-06
Dharma School Teachers of Oahu501(c)(3)1948
Diamond in the Rough ProductionsArts, culture and humanities501(c)(3)2014$0$02025-12
Empowering Women Hawaii & International IncReligion-related501(c)(3)2024$0$02025-12
Epd CorpEducation501(c)(3)2025
Eternal Focus FoundationReligion-related501(c)(3)2019$89,3622025-12
Excel Church501(c)(3)1969
Faith Assembly of God501(c)(3)1964
Filipino American Multi Ethnic SocietyEducation501(c)(3)2007$0$02025-12
Floor Ministries IncReligion-related501(c)(3)2012
Foundation 857Human services501(c)(3)2008$0$02025-12
Friends of the Library of Hawaii501(c)(3)1991$0$02024-12
Gathering IncorporatedReligion-related501(c)(3)1963
Giftd Give-Back IncHuman services501(c)(3)2023$0$02025-12
Gonutz BaseballRecreation and sports501(c)(3)2012$0$02024-12
Gracepoint ChurchReligion-related501(c)(3)1999
Ground Support HawaiiRecreation and sports501(c)(3)2023$0$02025-12
Guava JamRecreation and sports501(c)(3)2025$0$02025-12
Guitar Foundation of HawaiiCommunity improvement and capacity building501(c)(3)2017$0$02023-12
Guitar Foundation of HawaiiArts, culture and humanities501(c)(3)2025$0$02024-12
Ha Aha A Athletic Health CareHealth care501(c)(3)2022$0$02025-12
Hana Hou VolleyballRecreation and sports501(c)(3)2022$0$02025-12
Hana Pa A SoftballRecreation and sports501(c)(3)2014$0$02023-06
Hanai Waiu Milk BankHealth care501(c)(3)2025$0$02026-06
Hawaii Allstar Group IncArts, culture and humanities501(c)(3)2020$12024-12
Hawaii CH for the Deaf501(c)(3)1964
Hawaii Foundation for Performance ExcellenceMutual and membership benefit501(c)(3)2023$0$02025-12
Hawaii Health Information AssociationEducation501(c)(3)2024$0$02025-06
Hawaii In-Line Hockey IncRecreation and sports501(c)(3)2023$9,0862024-12
Hawaii Innovations Non-ProfitCommunity improvement and capacity building501(c)(3)2024
Hawaii Pidgin Bible MinistriesReligion-related501(c)(3)2021$0$02025-10
Hawaii Platinum GroupHuman services501(c)(6)2018$0$02024-12
Hawaii Remote Viewers Guild IncorporatedEducation501(c)(3)2014$0$02025-12
Hawaii State Pickleball AssociationRecreation and sports501(c)(3)2026
Hawaii United Okinawan Association501(c)(3)1996$0$02025-12
Hawaiian Islands Professional Panel of ExpertsHuman services501(c)(3)2019$0$02025-12
Hawaiis Lifeguard & Water Safety Fu NDEnvironment501(c)(3)2026$0$12023-12
Headquarter of the Keep the Bible CampaignReligion-related501(c)(3)2020$0$02024-12
Hi Bred Volleyball ClubRecreation and sports501(c)(3)2026
Hiki No Artillery AssociationPublic and societal benefit501(c)(19)2020$0$02025-12
Honbushin Mission International501(c)(3)1985
Honpa Hongwanji Mission of Hawaii501(c)(3)1948
Hoomaemae HaleHuman services501(c)(3)2026
Hugues Depayens Commandery UdRecreation and sports501(c)(10)2014$0$02025-12
Hui Aina A I KaiArts, culture and humanities501(c)(3)2025
Hui Loke KeaMutual and membership benefit501(c)(3)2018$0$02025-12
Hui O Mililani UkaPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1980$0$02024-12
Hui Okika O KuniaEnvironment501(c)(3)2011$0$02025-12
Ikl IncRecreation and sports501(c)(3)2016$0$02025-12
Ilio Maile SanctuaryAnimal-related501(c)(3)2025$0$02025-12
Infinite ReachScience and technology501(c)(3)2020$0$02026-06
International Association of Lions Clubs501(c)(4)1971$0$02025-06
International Cultural & Friendship AssociationHuman services501(c)(3)1992$0$02025-12
Iwalani FoundationHealth care501(c)(3)2015$0$02025-12
James and Juanita C Wo Foundation501(c)(3)1962$3.1 million2025-05
Kaimuki Ys Mens Club501(c)(3)1990$0$02026-05
Kaizen BaseballRecreation and sports501(c)(3)2025$0$02025-12
Kama OrganizationYouth development501(c)(3)2024
Kama Sports FoundationRecreation and sports501(c)(3)2024$0$02024-12
Kananiokeakua School of HulaArts, culture and humanities501(c)(3)2009$0$02024-12
Kappa Psi Pharmaceutical Fraternity Inc501(c)(7)1964$0$02024-12
Kawaiulaokala Foundation IncArts, culture and humanities501(c)(3)2020$0$02025-12
Kealohi Culture and ArtsArts, culture and humanities501(c)(3)2024$0$02025-12
Keiki Circles of Love Hawaii501(c)(3)1992$0$02025-12
Kikaha FoundationArts, culture and humanities501(c)(3)2025
Kindred ConnectionDiseases, disorders and medical disciplines501(c)(3)2025$0$02025-12
Knights of Columbus501(c)(8)1940$0$02026-06
Korean War Foundation IncArts, culture and humanities501(c)(3)2024$0$02025-12
Korean and Vietnam War Memorials Foundation IncArts, culture and humanities501(c)(3)2024$0$02025-12
Korean-American Club501(c)(4)1974$0$02025-12
Kukuilani Baptist Church501(c)(3)1976
Laulau HawaiiArts, culture and humanities501(c)(3)2024
Leeward Cobras Wrestling ClubRecreation and sports501(c)(3)2007$0$02025-12
Leeward Pilot ClubCommunity improvement and capacity building501(c)(3)2020$0$02025-06
Leeward Training Club of Hawaii Inc501(c)(7)1976$0$02024-12
Let Love Be GreaterEducation501(c)(3)2021$1492024-12
Lord of the Universe Society501(c)(3)1991$0$02025-12
Lous Homecare FoundationHuman services501(c)(3)2023$0$02024-12
Malamalama ProjectHuman services501(c)(3)2023$0$02024-12
Matthew Inn FoundationHealth care501(c)(3)2020$0$02025-12
McLaren C Child Rvoc Living Trust 032376501(c)(3)1993$251,6522025-12
Mililani Assembly Hall of Jehovah Witnesses IncReligion-related501(c)(3)2002
Mililani Baptist Church501(c)(3)1963
Mililani Community Church501(c)(3)1965
Mililani Fil-Am Baptist Church501(c)(3)1963
Mililani Foursquare Church501(c)(3)1949
Mililani High School Alumni AssociationEducation501(c)(3)2014$0$02025-12
Mililani Jump ClubRecreation and sports501(c)(3)2026
Mililani Lookouts BaseballRecreation and sports501(c)(3)2026$0$02025-12
Mililani Mechs RoboticsEducation501(c)(3)2023$0$02025-12
Mililani Middle School Ptso IncEducation501(c)(3)2024$0$02025-07
Mililani Orchid Club IncRecreation and sports501(c)(4)2008$0$02025-12
Mililani Presbyterian Church501(c)(3)1964
Mililani White SoxRecreation and sports501(c)(3)2025$0$02025-12
Monarch Club IncEducation501(c)(3)2018$16,7352024-12
Moriah Council No 4 Royal & Select MastersMutual and membership benefit501(c)(4)2012$0$02025-12
Most Excellent Aloha Prince Hall Grand Chapter Hram Jurisdiction ofMutual and membership benefit501(c)(10)2017$0$02025-09
Most Illustrious Aloha Prince Hall Grand Council R&SM of HawaiiMutual and membership benefit501(c)(10)2017$0$02025-09
Most Worshipful Prince Hall Free & Accepted Masons of Hawaii IncMutual and membership benefit501(c)(8)2003$0$02024-12
NA Leo MeleArts, culture and humanities501(c)(3)2024
NA Mea LiiArts, culture and humanities501(c)(3)2020$0$02024-12
Nanakuli Performing Arts CenterArts, culture and humanities501(c)(3)2018$0$02023-12
Narfe Leeward Oahu Chapter 1657Employment501(c)(5)2025
National Association of Letter Carriers501(c)(5)1944$0$02025-12
Native Hawaiian Innovation CenterEducation501(c)(3)2025$0$02025-12
New Apostolic Church of Kahului Maui Hi501(c)(3)
New Hope Chapter No 2Mutual and membership benefit501(c)(8)2009$0$02025-12
New Life United MinistriesReligion-related501(c)(3)1995
New Life United Pentecostal Church of HawaiiReligion-related501(c)(3)1996
Next Step Foundation IncHuman services501(c)(3)2013$0$02025-12
Nioc Junior Enlisted OrganizationPublic and societal benefit501(c)(3)2023$0$02025-12
North Shore Canoe ClubRecreation and sports501(c)(3)2014$0$02025-12
Oahu BearcatsRecreation and sports501(c)(3)2025$0$02026-05
Oahu Youth Education and ActivitiesYouth development501(c)(3)2009
Oasis Christian Center501(c)(3)1991
Onex3Religion-related501(c)(3)2025$0$02025-12
Oto Ohana Foundation IncCommunity improvement and capacity building501(c)(3)2025
Pacific Artisan CollectiveArts, culture and humanities501(c)(3)2025
Pacific Islands Bible Church501(c)(3)1980
Parent Booster USA IncEducation501(c)(3)2005
Paubox Kahikina ScholarshipEducation501(c)(3)2026
Pearl West Hope Chapel Foursquare Church501(c)(3)1949
Prodigy Community CenterRecreation and sports501(c)(3)2024
Rainbow House of ChristReligion-related501(c)(3)2011$0$02025-12
Raptors BaseballRecreation and sports501(c)(3)2024
Roots OhanaArts, culture and humanities501(c)(3)2024
Rosario MinistriesReligion-related501(c)(3)2025$0$02025-12
Rotary International501(c)(4)1958$0$02026-06
Seascape AcademyEnvironment501(c)(3)2024$0$02024-12
Skallywag OffroadPublic and societal benefit501(c)(3)2024$0$02025-12
Soroptimist International of the Americas IncCrime and legal-related501(c)(3)2002$0$02025-06
St Johns Catholic Preschool501(c)(3)1946
Tacos and Testimony CorporationFood, agriculture and nutrition501(c)(3)2026
Team Aidan 4 EverDiseases, disorders and medical disciplines501(c)(3)2022$0$02025-12
Team LockdownRecreation and sports501(c)(3)2024
Tesla Hawaii ClubRecreation and sports501(c)(7)2020$0$02025-12
The Catalysts ClubYouth development501(c)(3)2026
The Village FoundationRecreation and sports501(c)(3)2026
Toastmasters International501(c)(3)1945$0$02025-12
Toastmasters International501(c)(3)1945$0$02025-12
Toastmasters International501(c)(3)1945$0$02025-12
Trinity Church Central Oahu501(c)(3)1974
True Light CDCPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2022$0$02024-12
True Light Church of HonoluluReligion-related501(c)(3)2022$0$02024-12
USA Softball of HawaiiRecreation and sports501(c)(3)2010$0$02025-12
Unified Taekwondo of HawaiiCommunity improvement and capacity building501(c)(3)2000$0$02025-12
United Gospel Fellowship501(c)(3)1979
Waipio Grace Brethern Church501(c)(3)1963
Warrior RechargeMental health and crisis intervention501(c)(3)2025
West Oahu Prospects LLCYouth development501(c)(3)2024
Word of Victory MinistriesReligion-related501(c)(3)2005

By cause in Mililani, HI

Nonprofits in every city of the state

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.