| Meals on Wheels Programs & Services of Rockland, Inc.EIN 13-2831197 | Human Services | NY | $3,338,475Small | 84.15 |
| Medic One FoundationEIN 91-6183158 | Health | WA | $2,158,358Small | 82.32 |
| Medical Ambassadors InternationalEIN 94-2691184 | International | CA | $2,704,644Small | 86.23 |
| Medical Development for IsraelEIN 13-3140298 | Health | NY | $531,029Small | 68.38 |
| Medical Missions for ChildrenEIN 22-3536072 | International | NJ | $836,441Small | 66.30 |
| MEDICCEIN 31-1603765 | International | CA | $2,383,775Small | 82.55 |
| MediSend InternationalEIN 75-2332074 | International | TX | $1,473,879Small | 81.40 |
| Memphis Child Advocacy CenterEIN 58-1745787 | Human Services | TN | $1,869,342Small | 88.71 |
| Men of ValorEIN 62-1836815 | Religion | TN | $1,464,289Small | 78.69 |
| Men's Health NetworkEIN 52-1855419 | Health | DC | $805,645Small | 80.30 |
| Mended HeartsEIN 04-6073589 | Health | TX | $2,211,111Small | 89.23 |
| Mental Health Advocacy ServicesEIN 95-3371166 | Human and Civil Rights | CA | $778,600Small | 86.58 |
| Mental Health AssociationEIN 16-1395575 | Health | NY | $2,486,317Small | 89.45 |
| Mental Health ColoradoEIN 84-0446365 | Health | CO | $960,909Small | 86.80 |
| MentisEIN 94-1236934 | Health | CA | $2,114,980Small | 72.23 |
| Mentors InternationalEIN 43-1536498 | International | UT | $1,543,893Small | 87.44 |
| Mercy CenterEIN 22-2664472 | Human Services | NJ | $1,820,124Small | 85.25 |
| Mercy Learning Center of BridgeportEIN 22-2859879 | Education | CT | $2,140,285Small | 96.45 |
| Mercy StreetEIN 45-0536344 | Human Services | TX | $2,077,907Small | 79.92 |
| Mercy's GateEIN 84-1093341 | Human Services | CO | $1,083,068Small | 80.29 |
| Merkaz Hatorah Community KollelEIN 74-3181950 | Religion | CA | $1,314,740Small | 53.19 |
| Merola Opera ProgramEIN 94-6084831 | Education | CA | $3,244,658Small | 86.29 |
| Merrick Community ServicesEIN 41-0693851 | Human Services | MN | $1,534,978Small | 80.72 |
| Mesothelioma Applied Research FoundationEIN 75-2816066 | Health | DC | $2,190,623Small | 89.12 |
| Messianic Jewish Bible InstituteEIN 75-2812348 | Religion | TX | $1,757,135Small | 89.80 |
| MetanoiaEIN 20-0310400 | Community Development | SC | $1,704,253Small | 94.07 |
| MetavivorEIN 37-1578088 | Health | MD | $1,943,019Small | 94.69 |
| Metro Hope Recovery MinistriesEIN 41-0705786 | Health | MN | $1,487,004Small | 78.39 |
| MetroSquashEIN 20-2614486 | Human Services | IL | $2,204,245Small | 82.89 |
| Mexico Area Family YMCAEIN 43-1147430 | Human Services | MO | $1,236,978Small | 90.94 |
| Meyer Center for Special ChildrenEIN 57-0361503 | Human Services | SC | $3,157,517Small | 76.42 |
| Miami Bridge Youth and Family ServicesEIN 59-2569847 | Human Services | FL | $3,439,642Small | 92.08 |
| Michigan 4-H FoundationEIN 38-1539997 | Human Services | MI | $2,237,051Small | 80.60 |
| Michigan Anti-Cruelty SocietyEIN 38-1420301 | Animals | MI | $1,819,319Small | 94.63 |
| Michigan Community ResourcesEIN 20-5764501 | Community Development | MI | $1,072,508Small | 82.06 |
| Michigan Environmental CouncilEIN 38-2517980 | Environment | MI | $2,324,269Small | 91.73 |
| Michigan League for Public PolicyEIN 38-1360557 | Research and Public Policy | MI | $1,796,596Small | 92.85 |
| Michigan Paralyzed Veterans of AmericaEIN 38-6120911 | Human and Civil Rights | MI | $617,011Small | 76.54 |
| Michigan Roundtable for Diversity and InclusionEIN 20-3122770 | Human and Civil Rights | MI | $1,007,165Small | 75.64 |
| Michigan Sheriffs' AssociationEIN 38-2289072 | Human Services | MI | $1,241,599Small | 75.29 |
| Mid America Assistance CoalitionEIN 43-1186173 | Human Services | MO | $1,257,864Small | 82.29 |
| Mid-America Science MuseumEIN 20-2129318 | Arts, Culture, Humanities | AR | $1,975,757Small | 78.05 |
| Mid-Atlantic Foundation for Safety and EducationEIN 23-3100128 | Research and Public Policy | DE | $1,089,582Small | 82.32 |
| Mid-Iowa Council, Boy Scouts of AmericaEIN 42-0981715 | Human Services | IA | $3,162,411Small | 80.64 |
| Mid-Willamette Family YMCAEIN 93-0479079 | Human Services | OR | $3,059,581Small | 83.43 |
| Middle East Children's AllianceEIN 94-3074600 | International | CA | $2,748,424Small | 91.97 |
| Middle Tyger Community CenterEIN 57-1077940 | Human Services | SC | $1,068,622Small | 85.81 |
| Middle Way HouseEIN 23-7300355 | Human Services | IN | $2,098,358Small | 85.73 |
| Middlesex United WayEIN 06-0665170 | Community Development | CT | $1,706,457Small | 87.05 |
| Midland Community TheatreEIN 75-6003774 | Arts, Culture, Humanities | TX | $1,940,871Small | 85.18 |
| Midland-Odessa Symphony & ChoraleEIN 75-1301544 | Arts, Culture, Humanities | TX | $1,183,096Small | 89.29 |
| Midnight Golf ProgramEIN 38-3580432 | Human Services | MI | $1,521,282Small | 85.54 |
| Midori & FriendsEIN 13-3682472 | Education | NY | $1,764,343Small | 91.24 |
| MidTown ClevelandEIN 34-1381334 | Community Development | OH | $800,640Small | 90.17 |
| Midtown Educational FoundationEIN 36-3417278 | Education | IL | $3,162,988Small | 81.33 |
| Midwest Organic & Sustainable Education ServicesEIN 39-1824623 | Education | WI | $1,371,688Small | 82.93 |
| Midwest Shelter for Homeless VeteransEIN 36-4337985 | Human Services | IL | $1,379,606Small | 86.11 |
| Mike Silva InternationalEIN 37-3963621 | Religion | OR | $1,558,668Small | 88.55 |
| Mikva ChallengeEIN 52-2033353 | Education | IL | $3,434,395Small | 95.01 |
| Mile High MinistriesEIN 84-0782214 | Religion | CO | $3,366,410Small | 80.83 |