| Beyond PesticidesEIN 52-1360541 | Environment | DC | $1,025,719Small | 90.35 |
| Bible Broadcasting NetworkEIN 54-0888863 | Religion | NC | $11,664,277Mid-sized | 70.81 |
| Bible Education & Missionary ServiceEIN 56-2460700 | Religion | MS | $1,350,367Small | 60.41 |
| Bible in the SchoolsEIN 62-0523361 | Education | TN | $1,388,845Small | 87.10 |
| Bibles for AmericaEIN 33-0912609 | Religion | CA | $2,338,245Small | 46.87 |
| Bibles For The WorldEIN 36-2434228 | Religion | CO | $2,718,446Small | 94.86 |
| BideaweeEIN 13-1655210 | Animals | NY | $10,621,175Mid-sized | 83.88 |
| Big Brothers Big Sisters A Community of CaringEIN 38-1720832 | Human Services | MI | $1,294,439Small | 86.88 |
| Big Brothers Big Sisters Columbia NorthwestEIN 93-1303640 | Human Services | OR | $1,080,910Small | 67.12 |
| Big Brothers Big Sisters Independence RegionEIN 23-1352034 | Human Services | PA | $6,865,078Mid-sized | 90.26 |
| Big Brothers Big Sisters Lone StarEIN 75-0800632 | Human Services | TX | $10,736,073Mid-sized | 76.67 |
| Big Brothers Big Sisters of AmericaEIN 23-1365190 | Human Services | FL | $22,384,996Large | 89.33 |
| Big Brothers Big Sisters of Broward CountyEIN 59-1507595 | Human Services | FL | $1,244,992Small | 88.76 |
| Big Brothers Big Sisters of Central ArizonaEIN 86-0205254 | Human Services | AZ | $2,198,310Small | 86.11 |
| Big Brothers Big Sisters of Central CarolinasEIN 56-2264009 | Human Services | NC | $2,122,393Small | 86.69 |
| Big Brothers Big Sisters of Central IndianaEIN 35-1323831 | Human Services | IN | $2,235,849Small | 87.96 |
| Big Brothers Big Sisters of ColoradoEIN 23-7161796 | Human Services | CO | $3,046,953Small | 80.18 |
| Big Brothers Big Sisters of Eastern MissouriEIN 43-0669085 | Human Services | MO | $4,922,339Mid-sized | 89.66 |
| Big Brothers Big Sisters of Essex, Hudson & Union CountiesEIN 22-3676931 | Human Services | NJ | $1,622,935Small | 78.02 |
| Big Brothers Big Sisters of Greater Kansas CityEIN 43-6068464 | Human Services | MO | $3,900,296Mid-sized | 82.72 |
| Big Brothers Big Sisters of Greater Los AngelesEIN 95-1904857 | Human Services | CA | $3,769,785Mid-sized | 86.66 |
| Big Brothers Big Sisters of Greater PittsburghEIN 25-6074707 | Human Services | PA | $1,920,113Small | 90.20 |
| Big Brothers Big Sisters of KentuckianaEIN 61-6057856 | Human Services | KY | $2,098,963Small | 93.57 |
| Big Brothers Big Sisters of Massachusetts BayEIN 04-2074462 | Human Services | MA | $6,894,306Mid-sized | 91.06 |
| Big Brothers Big Sisters of Metro AtlantaEIN 58-0861895 | Human Services | GA | $4,054,562Mid-sized | 88.87 |
| Big Brothers Big Sisters of Metro MilwaukeeEIN 39-1239687 | Human Services | WI | $2,082,340Small | 84.35 |
| Big Brothers Big Sisters of Metropolitan ChicagoEIN 36-2681212 | Human Services | IL | $4,638,926Mid-sized | 90.64 |
| Big Brothers Big Sisters of Metropolitan DetroitEIN 38-6112533 | Human Services | MI | $1,230,114Small | 68.08 |
| Big Brothers Big Sisters of MiamiEIN 59-6166904 | Human Services | FL | $4,912,755Mid-sized | 91.93 |
| Big Brothers Big Sisters of Middle TennesseeEIN 23-7056024 | Human Services | TN | $2,799,769Small | 87.61 |
| Big Brothers Big Sisters of New York CityEIN 13-5600383 | Human Services | NY | $10,979,467Mid-sized | 88.90 |
| Big Brothers Big Sisters of Northeast FloridaEIN 59-0683256 | Human Services | FL | $1,642,685Small | 76.64 |
| Big Brothers Big Sisters of Northeast IndianaEIN 35-1271943 | Human Services | IN | $2,267,416Small | 87.87 |
| Big Brothers Big Sisters of OklahomaEIN 73-1226237 | Human Services | OK | $2,479,328Small | 75.60 |
| Big Brothers Big Sisters of Orange CountyEIN 95-1992702 | Human Services | CA | $5,321,640Mid-sized | 91.77 |
| Big Brothers Big Sisters of Palm Beach and Martin CountiesEIN 59-2676889 | Human Services | FL | $847,627Small | 83.33 |
| Big Brothers Big Sisters of Puget SoundEIN 91-0673185 | Human Services | WA | $2,282,947Small | 91.64 |
| Big Brothers Big Sisters of San Diego CountyEIN 95-2151526 | Human Services | CA | $2,822,000Small | 90.97 |
| Big Brothers Big Sisters of South TexasEIN 74-1897630 | Human Services | TX | $2,993,424Small | 87.96 |
| Big Brothers Big Sisters of St. Lucie, Indian River & Okeechobee CountiesEIN 59-2455513 | Human Services | FL | $1,378,398Small | 81.82 |
| Big Brothers Big Sisters of Tampa BayEIN 59-2173085 | Human Services | FL | $4,990,990Mid-sized | 88.09 |
| Big Brothers Big Sisters of the Greater Twin CitiesEIN 32-0017737 | Human Services | MN | $5,810,205Mid-sized | 80.30 |
| Big Brothers Big Sisters of the MidlandsEIN 47-0466144 | Human Services | NE | $2,318,385Small | 91.49 |
| Big Brothers Big Sisters of the Sun CoastEIN 59-1361826 | Human Services | FL | $2,506,829Small | 88.12 |
| Big Brothers Big Sisters of the TriangleEIN 56-2109717 | Human Services | NC | $841,613Small | 86.38 |
| Big City MountaineersEIN 65-0200163 | Human Services | CO | $1,036,772Small | 87.09 |
| Big Green Scholarship FoundationEIN 55-0631935 | Education | WV | $3,736,494Mid-sized | 82.14 |
| Big Oak RanchEIN 23-7413017 | Human Services | AL | $8,513,520Mid-sized | 94.90 |
| Big Shoulders FundEIN 36-3490557 | Education | IL | $18,807,655Large | 98.64 |
| Big ThoughtEIN 75-2170035 | Education | TX | $7,097,230Mid-sized | 83.62 |
| Bigelow Laboratory for Ocean SciencesEIN 01-6006001 | Research and Public Policy | ME | $12,705,375Mid-sized | 96.66 |
| Bike & BuildEIN 36-4524531 | Community Development | PA | $1,117,167Small | 83.08 |
| Bike Works SeattleEIN 91-1753062 | Human Services | WA | $1,514,495Small | 90.62 |
| Bikes Not BombsEIN 04-3138753 | International | MA | $1,482,741Small | 86.84 |
| Bill Glass Behind the WallsEIN 75-2733954 | Religion | TX | $2,692,093Small | 95.08 |
| Bill of Rights InstituteEIN 48-0891418 | Education | VA | $3,151,238Small | 83.26 |
| Binghampton Christian AcademyEIN 62-1555775 | Education | TN | $1,396,779Small | 73.41 |
| Biomimicry InstituteEIN 86-1153859 | Environment | MT | $945,865Small | 80.43 |
| BioneersEIN 85-0432731 | Environment | NM | $4,165,702Mid-sized | 85.37 |
| Birch Community ServicesEIN 93-1186020 | Human Services | OR | $15,057,816Large | 92.24 |