Data / Nonprofits / New Jersey / Mountainside
Nonprofits in Mountainside, NJ: 64 registered with the IRS
64 nonprofits are registered with the IRS in Mountainside, NJ, 48 of them 501(c)(3) charities; the 25 that report revenue took in $240.7 million. The largest by revenue: R W J Barnabas Health Inc ($141.9 million), International Brotherhood of TMSTRS Chauffers WRHSMN & Helpers of Amer ($49.8 million), Childrens Specialized Hospital Foundation Inc ($17.4 million). Most common causes: education (7), philanthropy, voluntarism and grantmaking foundations (5), human services (5).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| R W J Barnabas Health Inc | Health care | 501(c)(3) | 2020 | $141.9 million | $183.7 million | 2017-12 |
| International Brotherhood of TMSTRS Chauffers WRHSMN & Helpers of Amer | 501(c)(9) | 1950 | $49.8 million | $23.9 million | 2025-03 | |
| Childrens Specialized Hospital Foundation Inc | Health care | 501(c)(3) | 1985 | $17.4 million | $113.7 million | 2025-12 |
| Families and Community Together Inc | Human services | 501(c)(3) | 2001 | $13.3 million | $8 million | 2025-06 |
| Laborers International Union of North America | 501(c)(5) | 1968 | $6.5 million | $28.1 million | 2025-09 | |
| International Brotherhood of Teamsters | 501(c)(5) | 1941 | $3.8 million | $3.1 million | 2024-12 | |
| Imagine A Center for Coping With Loss | Mental health and crisis intervention | 501(c)(3) | 2012 | $2.3 million | $2.7 million | 2025-08 |
| National Electrical Contractors Association Northern NJ Chapter | 501(c)(6) | 1954 | $1.8 million | $2.8 million | 2024-12 | |
| Northern New Jersey Chapter Administrative Maintenance Fund | Community improvement and capacity building | 501(c)(6) | 1999 | $1.3 million | $1.6 million | 2024-12 |
| New Jersey State Firemens Association | 501(c)(4) | 1979 | $676,877 | $1.6 million | 2025-12 | |
| Mountainside Rescue Squad Borough of Mountainside NJ | Public safety, disaster preparedness and relief | 501(c)(3) | 2000 | $356,392 | $369,182 | 2025-12 |
| Mountainside Softball & Baseball League | 501(c)(3) | 1992 | $248,749 | $250,199 | 2024-12 | |
| Mid-New Jersey Youth Soccer Association Inc | Recreation and sports | 501(c)(3) | 1990 | $166,941 | $459,538 | 2025-08 |
| Arman N Roy Foundation | Youth development | 501(c)(3) | 2019 | $155,840 | $77,105 | 2025-12 |
| Mountainside NJ Parent Teacher Organization | Education | 501(c)(3) | 2019 | $140,085 | $99,236 | 2026-07 |
| Building Construction Laborers Local 3 Realty A NJ Nonprofit Corp | Housing and shelter | 501(c)(2) | 2016 | $138,321 | $1.1 million | 2025-09 |
| Portugal Day Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $131,230 | $144,363 | 2025-12 |
| Friends of Union County LLC | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $125,802 | $114,766 | 2025-12 |
| Mountainside FC Inc | Recreation and sports | 501(c)(3) | 2024 | $122,328 | $14,106 | 2025-12 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1972 | $93,199 | $198,659 | 2026-03 | |
| Local 863 Corporation | 501(c)(2) | 1977 | $80,989 | $1.6 million | 2024-12 | |
| New Jersey State Firemens Association | 501(c)(4) | 1979 | $57,093 | $218,336 | 2025-12 | |
| Mountainside Restoration Committee Inc | 501(c)(3) | 1987 | $48,658 | $41,014 | 2025-12 | |
| Beautiful Mountainside A NJ Nonprofit Corporation | Environment | 501(c)(3) | 2018 | $13,025 | $10,040 | 2024-12 |
| Ryan Patrick Faella Memorial Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $8,105 | $43,370 | 2025-12 |
| American Inns of Court Foundation | 501(c)(3) | 1986 | $0 | $0 | 2024-06 | |
| Andrew Adornato Foundation | Education | 501(c)(3) | 2025 | $23,042 | 2025-12 | |
| Arthur Venneri Foundation | 501(c)(3) | 1956 | $95,102 | 2024-12 | ||
| Auxiliary To the Board of Trustees of Childrens Specialized Hospital | 501(c)(3) | 1973 | $0 | $0 | 2026-06 | |
| Block Organization | Mental health and crisis intervention | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Brotherhood of Locomotive Engineers and Trainmen | 501(c)(5) | 1940 | $0 | $0 | 2025-12 | |
| Bukas Loob Diyos Foundation Inc | Religion-related | 501(c)(3) | 1998 | |||
| Codogno Center Inc | 501(c)(3) | 1946 | ||||
| Davids Way Inc | Human services | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Dnyce Productions Inc | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Dorothy Ann Foundation Inc | Human services | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Elizabeth High School Scholarship Foundation | Community improvement and capacity building | 501(c)(3) | 2020 | $0 | $0 | 2026-07 |
| Far Eastern University Nursing Alumni Foundation Inc | Health care | 501(c)(3) | 2006 | $0 | $0 | 2026-06 |
| Friends of the Free Public Library of Mountainside | Education | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| Inspiration of Warrior Gainz Inc | Human services | 501(c)(3) | 2025 | |||
| La Creme Angels Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Manuel and Maria Teixeira Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $580,718 | 2025-12 | |
| Mountainside Gospel Chapel Inc | 501(c)(3) | 1977 | ||||
| New Jersey American Society of Plum Bing Engineers | Education | 501(c)(3) | 2026 | |||
| New Jersey District-Lutheran Church-Missouri Synod | 501(c)(3) | 1941 | 2013-12 | |||
| New Jersey State Policemens Benevolent Association Inc | Mutual and membership benefit | 501(c)(8) | 2014 | $0 | $0 | 2025-12 |
| Plainfield Garden Club A New Jersey Non Profit Corp | 501(c)(3) | 1985 | $0 | $0 | 2026-06 | |
| Property Owners Asociation of Greater New York Corp | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2026-04 |
| Rotary International | 501(c)(4) | 1966 | $0 | $0 | 2026-06 | |
| Ruso Schwarz Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $52,151 | 2025-12 | |
| Schmeltzer Family Foundation | 501(c)(92) | |||||
| Schwarz Foundation | 501(c)(3) | 1983 | $59.4 million | 2025-06 | ||
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Tri-State Wheelchair Athletic Association | Recreation and sports | 501(c)(3) | 2013 | $0 | $0 | 2024-06 |
| Union County Medical Society | 501(c)(6) | 1965 | $0 | $0 | 2025-12 | |
| Union County School Counselors Association Inc | Education | 501(c)(3) | 2024 | |||
| Vedanta Wisdom Us Inc | Crime and legal-related | 501(c)(3) | 2026 | |||
| Vericon Foundation | Human services | 501(c)(3) | 2015 | $1 million | 2025-12 | |
| Veterans of Foreign Wars of the United States Dept of New Jersey | 501(c)(19) | 1944 | $0 | $0 | 2025-06 | |
| Visions of God Family Worship & Ministries Inc | Religion-related | 501(c)(3) | 1999 | |||
| Walters Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $2.4 million | 2024-12 | |
| Watchung Stables Auxiliary Inc | Animal-related | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Womans Club of Westfield Inc | Education | 501(c)(3) | 2004 | $1 | 2025-05 | |
| You Got This Kid Leadership Foundation | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
By cause in Mountainside, NJ
- Education 7
- Philanthropy, voluntarism and grantmaking foundations 5
- Human services 5
- Health care 3
- Recreation and sports 3
- Community improvement and capacity building 3
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.