| 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 |
| 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 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 Essex, Hudson & Union CountiesEIN 22-3676931 | Human Services | NJ | $1,622,935Small | 78.02 |
| 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 Metro MilwaukeeEIN 39-1239687 | Human Services | WI | $2,082,340Small | 84.35 |
| Big Brothers Big Sisters of Metropolitan DetroitEIN 38-6112533 | Human Services | MI | $1,230,114Small | 68.08 |
| Big Brothers Big Sisters of Middle TennesseeEIN 23-7056024 | Human Services | TN | $2,799,769Small | 87.61 |
| 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 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 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 |
| 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 |
| Bird Street Community CenterEIN 04-2708670 | Human Services | MA | $1,635,684Small | 80.05 |
| Bishop Sullivan CenterEIN 43-1750848 | Human Services | MO | $1,726,054Small | 84.68 |
| Bivona Child Advocacy CenterEIN 03-0519569 | Human Services | NY | $1,571,580Small | 94.34 |
| Black AIDS InstituteEIN 95-4742741 | Health | CA | $2,147,395Small | 88.86 |
| Black Student FundEIN 52-6053597 | Education | DC | $407,911Small | 64.72 |
| Bladder Cancer Advocacy NetworkEIN 20-2897110 | Health | MD | $2,104,302Small | 94.88 |
| Blandford Nature CenterEIN 20-0739420 | Environment | MI | $1,358,816Small | 85.35 |
| BLESS USAEIN 13-3602362 | International | NJ | $1,205,470Small | 65.86 |
| Blessed Family Association InternationalEIN 20-5717831 | Human Services | WA | $1,109,782Small | 64.72 |
| Blind Children's Learning CenterEIN 95-6097023 | Education | CA | $2,816,982Small | 94.51 |
| BlinkNow FoundationEIN 26-0819262 | International | NJ | $2,388,119Small | 97.84 |
| BlithewoldEIN 05-0503407 | Arts, Culture, Humanities | RI | $1,694,452Small | 89.34 |
| Blood:WaterEIN 56-2483082 | International | TN | $2,239,685Small | 76.38 |
| Blue Mountain Humane SocietyEIN 91-0828499 | Animals | WA | $1,066,237Small | 96.82 |
| Blue Ridge Public RadioEIN 58-1445328 | Arts, Culture, Humanities | NC | $2,365,620Small | 88.06 |
| Blue Ridge Public TelevisionEIN 54-0798878 | Arts, Culture, Humanities | VA | $3,330,734Small | 79.23 |
| BLUEBARN TheatreEIN 47-0742394 | Arts, Culture, Humanities | NE | $718,171Small | 83.20 |
| Bo's PlaceEIN 76-0326979 | Human Services | TX | $2,031,638Small | 91.94 |
| Boat US FoundationEIN 54-1156448 | Education | MD | $1,857,107Small | 74.78 |
| Bolder OptionsEIN 41-1909408 | Human Services | MN | $1,005,288Small | 81.41 |
| Book-It Repertory TheatreEIN 91-1514734 | Arts, Culture, Humanities | WA | $1,774,747Small | 72.36 |
| Boone and Crockett ClubEIN 81-0438290 | Animals | MT | $3,085,806Small | 85.24 |
| Boothbay Region YMCAEIN 01-0237912 | Human Services | ME | $2,780,834Small | 94.85 |
| Born Free USAEIN 94-6187633 | Animals | MD | $2,716,257Small | 88.05 |