| 1 | Merck Patient Assistance Program INC | Philanthropy, Voluntarism & Grantmaking | $1.9B | $26.4M |
| 2 | Merck Company Foundation | Unclassified | $45.4M | $328.3M |
| 3 | Mesorah Heritage Foundation | Arts, Culture & Humanities | $38.3M | $23.0M |
| 4 | Tia Charitable Tr | Philanthropy, Voluntarism & Grantmaking | $11.7M | $19.6M |
| 5 | Ecyc INC | Education | $5.7M | $2.1M |
| 6 | United Way of Greater Union County INC | Philanthropy, Voluntarism & Grantmaking | $4.9M | $3.9M |
| 7 | Golden Age Towers INC | Housing & Shelter | $3.8M | $7.6M |
| 8 | Community Coordinated Child Care of Union County INC | Unclassified | $3.7M | $1.8M |
| 9 | Rahway Day Care Center INC | Unclassified | $2.4M | $1.5M |
| 10 | Rahway Community Action Organization | Community Improvement & Capacity Building | $2.2M | $1.1M |
| 11 | New Jersey State Firefighters Mutual Benevolent | Unclassified | $1.9M | $2.1M |
| 12 | Union County Arts Center INC | Arts, Culture & Humanities | $1.9M | $1.4M |
| 13 | Rahway First Aid Emergency Squad | Public Safety, Disaster Preparedness & Relief | $933K | $494K |
| 14 | International Brotherhood of Teamsters | Unclassified | $863K | $1.3M |
| 15 | Sephardic Center for Rabbinical and Secular Studies INC | Religion-Related | $714K | $33K |
| 16 | Impact 21 Community Development Corporation | Human Services | $414K | $89K |
| 17 | United Steelworkers | Unclassified | $407K | $271K |
| 18 | Rahway Arts District INC | Community Improvement & Capacity Building | $342K | $359K |
| 19 | Faith in New Jersey INC | Civil Rights, Social Action & Advocacy | $315K | $329K |
| 20 | N J State Fmba Foundation INC | Education | $271K | $66K |
| 21 | American Legion | Unclassified | $264K | $323K |
| 22 | The Morris I Franco Foundation INC | Unclassified | $257K | $1.5M |
| 23 | Merchants and Drovers Tavern Museum Association INC | Unclassified | $248K | $1.2M |
| 24 | Benevolent & Protective Order of Elks of the USA | Unclassified | $221K | $376K |
| 25 | Two Hundred Club of Union County 302 E Broad St. | Unclassified | $170K | $474K |
| 26 | Ezer Eliyahu INC | Human Services | $155K | $183K |
| 27 | New Jersey State Policemens Benevolent Association | Mutual & Membership Benefit | $152K | $42K |
| 28 | Union County Fatherhood Initiative Coalition INC | Human Services | $126K | $15K |
| 29 | Rahway Cemetery | Mutual & Membership Benefit | $114K | $249K |
| 30 | New Jersey State Firemens Mutual Benevolent Association | Unclassified | $113K | $61K |
| 31 | Gyaan Ka Saagar | Religion-Related | $108K | $152K |
| 32 | Rahway Youth Soccer Association INC | Recreation & Sports | $98K | $41K |
| 33 | Union Apartment Project INC | Housing & Shelter | $87K | $559K |
| 34 | New Jersey State Firemens Association | Unclassified | $76K | $596K |
| 35 | New Jersey State Firemens Mutual Benevolent Association | Unclassified | $66K | $102K |
| 36 | Rahway River Association | Environment | $61K | $63K |
| 37 | Local 522 Scholarship Fund | Education | $59K | $72K |
| 38 | Garden State Theatre Organ Society INC | Unclassified | $55K | $1.9M |
| 39 | Rahway Senior Support Services INC | Human Services | $53K | $1.2M |
| 40 | Hannums Liberty Harley Owners Group | Philanthropy, Voluntarism & Grantmaking | $34K | $8K |
| 41 | Worthy Ministries International INC | Religion-Related | $22K | $6K |
| 42 | Fortune Education Foundation INC | Education | $22K | $1.6M |
| 43 | Mr Bobs Garden Foundation for YMCA Campers | Unclassified | $14K | $239 |
| 44 | Empowering in the Community INC | Community Improvement & Capacity Building | $9K | $5K |
| 45 | Incarcerated Veterans of America INC | Crime & Legal-Related | $3K | $8K |
| 46 | Rahway Pba Local 31 Civic Assoc INC | Philanthropy, Voluntarism & Grantmaking | $0 | $0 |
| 47 | Hope for All Prayer Center | Religion-Related | $0 | $0 |
| 48 | Heart to Heart Ministries | Religion-Related | $0 | $0 |
| 49 | Tracy Truesdale Ministries | Religion-Related | $0 | $0 |
| 50 | Iglesia Biblica de Rahway INC | Religion-Related | $0 | $0 |
| 51 | Free & Accepted Masons of New Jersey | Unclassified | $0 | $0 |
| 52 | Divine Mercy Parish | Unclassified | $0 | $0 |
| 53 | Woodside Swim Club INC | Unclassified | $0 | $1 |
| 54 | New Jersey Tooling & Manufacturing Association INC | Unclassified | $0 | $0 |
| 55 | Holy Trinity Orthodox Church | Unclassified | $0 | $0 |
| 56 | Divine Mercy Parish | Unclassified | $0 | $0 |
| 57 | Second Baptist Church Rahway N J | Religion-Related | $0 | $0 |
| 58 | Oasis Christian Centre | Religion-Related | $0 | $0 |
| 59 | North Jersey Electric Railway Historical Society INC | Unclassified | $0 | $0 |
| 60 | First Church of God and Saints of Christ INC | Unclassified | $0 | $0 |
| 61 | Pop Warner Little Scholars | Recreation & Sports | $0 | $0 |
| 62 | Agape Family Worship Center INC | Unclassified | $0 | $0 |
| 63 | Eglise Baptiste Bethesda Bethesda Baptist Church | Unclassified | $0 | $0 |
| 64 | Woodcliff Lake Chapter of Unico National a New Jersey Nonprofit | Unclassified | $0 | $0 |
| 65 | National Association of Teachers of Singing INC | Education | $0 | $0 |
| 66 | Rahway Foundation for Excellence in Education INC | Education | $0 | $0 |
| 67 | National Council of Negro Women | Unclassified | $0 | $0 |
| 68 | Rahway Police Athletic League INC | Youth Development | $0 | $0 |
| 69 | We the Youth INC | Youth Development | $0 | $0 |
| 70 | Patrol Mens Benevolent Association | Mutual & Membership Benefit | $0 | $0 |
| 71 | Progressive Baptist Church | Religion-Related | $0 | $0 |
| 72 | New Life Temple Christian Church INC | Religion-Related | $0 | $0 |
| 73 | Word of Life Apostolic Center INC | Religion-Related | $0 | $0 |
| 74 | Lighthouse Christian Fellowship Church INC | Mutual & Membership Benefit | $0 | $0 |
| 75 | True Love Full Gospel Ministries | Religion-Related | $0 | $0 |
| 76 | First Baptist Church | Unclassified | $0 | $0 |
| 77 | New Jersey Education Association | Unclassified | $0 | $0 |
| 78 | Knights of Columbus | Unclassified | $0 | $0 |
| 79 | PTA New Jersey Congress of Parents & Teachers | Unclassified | $0 | $0 |
| 80 | Knights of Columbus Fr John P Washington General Assembly 656 | Mutual & Membership Benefit | $0 | $0 |
| 81 | Tall Cedars of Lebanon of North America | Unclassified | $0 | $0 |
| 82 | Rahway Local Organizing Committee | Community Improvement & Capacity Building | $0 | $0 |
| 83 | Mo Hair Foundation INC | Human Services | $0 | $0 |
| 84 | Our Fathers House International Ministry | Unclassified | $0 | $0 |
| 85 | Strays R US a Nj Nonprofit Corporation | Animal-Related | $0 | $0 |
| 86 | Freedom Rings House of Refuge | Religion-Related | $0 | $0 |
| 87 | Holy Mountain Temple Ministries | Religion-Related | $0 | $0 |
| 88 | Lifting Lives INC | Human Services | $0 | $0 |
| 89 | Oil of Joy Ministries | Religion-Related | $0 | $0 |
| 90 | Princess Foundation a Nj Nonprofit Corporation | Youth Development | $0 | $0 |
| 91 | Work Ethics Sport Group | Recreation & Sports | $0 | $0 |
| 92 | Blankets from Linda | Housing & Shelter | $0 | $0 |
| 93 | 4THIRTEEN Outreach | Community Improvement & Capacity Building | $0 | $0 |
| 94 | Mustard Seed Mission | Human Services | $0 | $0 |
| 95 | Care Collective | Human Services | $0 | $0 |
| 96 | Incarcerated Persons Legal Association | Crime & Legal-Related | $0 | $0 |
| 97 | Full 80 Rugby | Recreation & Sports | $0 | $0 |
| 98 | Rahway Basketball Club INC | Human Services | $0 | $0 |
| 99 | Wurdplay Literacy Initiative | Education | $0 | $0 |
| 100 | Iglesia Cristiana Luz En Las Tinieblas INC | Religion-Related | $0 | $0 |