Data / Nonprofits / New Jersey / Mendham
Nonprofits in Mendham, NJ: 99 registered with the IRS
99 nonprofits are registered with the IRS in Mendham, NJ, 85 of them 501(c)(3) charities; the 39 that report revenue took in $36 million. The largest by revenue: Roxiticus Golf Club ($10 million), Tri-County Scholarship Fund ($8 million), Mendham Golf and Tennis Club ($6.1 million). Most common causes: education (17), philanthropy, voluntarism and grantmaking foundations (10), recreation and sports (10).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Roxiticus Golf Club | 501(c)(7) | 1968 | $10 million | $20.4 million | 2024-12 | |
| Tri-County Scholarship Fund | Education | 501(c)(3) | 1983 | $8 million | $15.1 million | 2025-12 |
| Mendham Golf and Tennis Club | 501(c)(7) | 1969 | $6.1 million | $9.4 million | 2025-10 | |
| Westmont School Inc | Education | 501(c)(3) | 1968 | $2.2 million | $6.8 million | 2025-06 |
| Yougivegoods Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $2.2 million | $143,176 | 2024-12 |
| Association of New Jersey Environmental Commissions | Environment | 501(c)(3) | 1971 | $1.1 million | $988,367 | 2024-12 |
| Assumption College for Sisters | Youth development | 501(c)(3) | 1985 | $836,079 | $2.3 million | 2025-06 |
| The Power Sources Manufacturers Association Inc | 501(c)(6) | 1986 | $755,055 | $719,657 | 2023-12 | |
| Advancing Innovation in Dermatology Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2012 | $567,490 | $2.1 million | 2025-12 |
| Mendham Borough Library | Education | 501(c)(3) | 1953 | $485,976 | $2.1 million | 2024-12 |
| West Morris Soccer Club | 501(c)(3) | 1985 | $484,454 | $237,005 | 2025-12 | |
| Mendham Area Senior Housing Corporation | 501(c)(3) | 1980 | $466,661 | $891,737 | 2025-12 | |
| Chester Mendham Baseball & Softball Club Inc | Recreation and sports | 501(c)(3) | 2023 | $379,631 | $348,765 | 2025-12 |
| Beyond the Walls Inc | International, foreign affairs and national security | 501(c)(3) | 2007 | $292,495 | $382,163 | 2024-12 |
| Mendham Cemetery Assoc | Mutual and membership benefit | 501(c)(13) | 1999 | $244,830 | $2.5 million | 2025-12 |
| Beth Israel Cemetery Association | Mutual and membership benefit | 501(c)(13) | 1983 | $238,640 | $1.6 million | 2025-12 |
| Schiff Natural Lands Trust Inc | Environment | 501(c)(3) | 1985 | $225,726 | $17.4 million | 2025-12 |
| Pastime Club Inc | 501(c)(4) | 1996 | $214,895 | $449,269 | 2024-12 | |
| Mendham Cooperative Nursery School | Education | 501(c)(3) | 1974 | $210,202 | $125,275 | 2025-06 |
| St John the Baptist Foundation | 501(c)(3) | 1972 | $137,192 | $1.1 million | 2025-12 | |
| Til the End of Time Sanctuary Inc | 501(c)(3) | 2006 | $70,008 | $5,194 | 2025-06 | |
| Mendham High School Football Boosters Inc | Education | 501(c)(3) | 2005 | $69,021 | $70,317 | 2025-12 |
| Mendham First Aid Squad Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2003 | $68,471 | $207,161 | 2025-12 |
| Music Boosters Club of West Morris Mendham High School | Education | 501(c)(3) | 2012 | $65,611 | $21,957 | 2025-08 |
| New Jersey State Firemens Association | 501(c)(4) | 1979 | $63,967 | $359,305 | 2025-12 | |
| New Jersey State Policemens Benevolent Association Inc | Mutual and membership benefit | 501(c)(8) | 2014 | $57,810 | $169,835 | 2025-12 |
| Mendham Borough Home-School Association | Education | 501(c)(3) | 1980 | $56,262 | $95,999 | 2025-06 |
| St Andrews Convelescent Hospital | 501(c)(3) | 1942 | $54,331 | $705,289 | 2025-12 | |
| Ralston Engine Company No 1 | Public safety, disaster preparedness and relief | 501(c)(3) | 1998 | $39,664 | $349,385 | 2024-12 |
| Fund for Social Equity Inc | Civil rights, social action and advocacy | 501(c)(3) | 2024 | $39,500 | $624 | 2024-12 |
| Mendham Junior Womans Club | 501(c)(3) | 1991 | $36,411 | $9,570 | 2024-12 | |
| Iron Girl Project Inc | Youth development | 501(c)(3) | 2022 | $34,744 | $81,903 | 2025-12 |
| Mendham Independent Hook and Ladder Company | 501(c)(3) | 1990 | $34,440 | $163,905 | 2025-12 | |
| Ralston Cider Mill A NJ Nonprofit Corporation | Arts, culture and humanities | 501(c)(3) | 2003 | $32,079 | $104,379 | 2025-12 |
| Beaver Brook Hunting and Fishing Club Inc | Recreation and sports | 501(c)(7) | 2019 | $30,902 | $80,686 | 2025-10 |
| Mendham-Chester Running Club Inc | Recreation and sports | 501(c)(3) | 2023 | $30,825 | $32,664 | 2025-12 |
| United States Running Streak Association Inc | Recreation and sports | 501(c)(7) | 2014 | $23,343 | $60,693 | 2025-12 |
| South Mountain Theaterworks Inc | Arts, culture and humanities | 501(c)(3) | 2006 | $16,170 | $25,528 | 2025-06 |
| Diversity Coalition of Morris County Inc | Education | 501(c)(3) | 2022 | $4,500 | $2,616 | 2025-12 |
| A P Kirby Foundation Inc | 501(c)(3) | 1989 | $130.4 million | 2025-12 | ||
| American Childrens Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $7,133 | 2025-12 | |
| Amherst Alumni Foundation Inc | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Apollo Critical Incident Stress Management Team | Mental health and crisis intervention | 501(c)(3) | 2023 | $5,492 | 2025-12 | |
| Barer Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $342,541 | 2025-12 | |
| Bergen Arches A Non Profit Corp | Environment | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Bright Co-Op Inc | Recreation and sports | 501(c)(7) | 2026 | $0 | $0 | 2026-06 |
| Center for Molecular Medicine and Immunology Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1997 | $0 | $0 | 2026-06 |
| Chabad of Mendham & Chester Inc | Religion-related | 501(c)(3) | 2024 | |||
| Chester Garden Club | 501(c)(3) | 1985 | $0 | $0 | 2025-05 | |
| Chi Chapter of Kappa Sigma Educational Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $0 | $0 | 2025-08 |
| Chris Tremaine Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $42,347 | 2024-12 | |
| Christie Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1999 | $7,287 | 2025-09 | |
| Community of St John Baptist | 501(c)(3) | 1966 | ||||
| David M C Ju Foundation | 501(c)(3) | 1965 | $3.6 million | 2025-08 | ||
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Family Outreach Foundation Inc Anj Non-Profit Corporation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $43,731 | 2025-12 | |
| Giving Jamaica Chances Inc | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Green Wave Wrestling Club | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-06 |
| Growing Hearts of Africa Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $34,294 | 2024-12 | |
| Harry Zenna Memorial Foundation | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Hometown History NJ | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Institute for Silver Dollar Education and Research | Public and societal benefit | 501(c)(3) | 2022 | $0 | $0 | 2025-01 |
| Jockey Hollow Weavers Inc | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Live the Gospel | Religion-related | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Mendham Boro Police Pba Local 384 Civic Association Inc | Public and societal benefit | 501(c)(3) | 2018 | $0 | $0 | 2022-12 |
| Mendham Borough Police Scholarship Fund | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Mendham Diamond Club Inc | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-02 |
| Mendham High School Fencing Parents Association | Education | 501(c)(3) | 2006 | $0 | $0 | 2026-06 |
| Mendham High School Parent Teacher Organization Inc | Education | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Mendham High School Soccer Minutemen Sports Club | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2024-06 |
| Mendham United Methodist Church | 501(c)(3) | 1974 | 2013-12 | |||
| Mendhams Senior Citizens | Human services | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Millburn-Short Hills Arts Center | 501(c)(3) | 2023 | $0 | $0 | 2026-05 | |
| Morris Hills Spiked Shoe Club Inc | Recreation and sports | 501(c)(3) | 1998 | $0 | $0 | 2026-06 |
| New Jersey Education Association | 501(c)(5) | 1972 | ||||
| New Jersey Postal History Society Inc | 501(c)(3) | 1991 | $0 | $0 | 2025-12 | |
| Next Evolution in Wellness and Science College | Education | 501(c)(3) | 2025 | |||
| Nimbley Family Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $4.8 million | 2025-12 | |
| One World Yoga | Education | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-12 | |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Rally2repay | Public and societal benefit | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Ralston Historical Association | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-05 |
| River Beech Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $12.1 million | 2024-12 | |
| Rotary International | 501(c)(4) | 1942 | $0 | $0 | 2024-06 | |
| Roy & Marianne Smith Foundation | 501(c)(3) | 1982 | $198,879 | 2026-03 | ||
| Sharing Project Inc | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Sister of Christian Charity United Inc | 501(c)(3) | 1946 | ||||
| Sisters of Christian Charity | 501(c)(3) | 1946 | 2015-12 | |||
| Sisters of Christian Charity | 501(c)(3) | 1946 | ||||
| Sisters of Christian Charity Healthcare Corporation | Health care | 501(c)(3) | 1946 | $0 | $0 | 2025-06 |
| Skylands Cycling Collective | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Tina and Richard V Carolan Foundation Inc | 501(c)(3) | 1992 | $18 million | 2024-11 | ||
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| West Morris Mendham Minutemen Hockey Inc | Recreation and sports | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Women Reading Aloud Inc | Arts, culture and humanities | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
By cause in Mendham, NJ
- Education 17
- Philanthropy, voluntarism and grantmaking foundations 10
- Recreation and sports 10
- Arts, culture and humanities 6
- Mutual and membership benefit 3
- Environment 3
- Youth development 3
- Public and societal benefit 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.