| Children of Fallen Patriots FoundationEIN 47-0902295 | Education | VA | $5,861,743Mid-sized | 95.38 |
| Children's Development AcademyEIN 58-1085443 | Education | GA | $2,195,664Small | 90.77 |
| Children's Literacy InitiativeEIN 23-2515768 | Education | PA | $25,103,055Large | 91.16 |
| Children's Scholarship FundEIN 13-4002189 | Education | NY | $22,111,290Large | 89.39 |
| Children's Scholarship Fund PhiladelphiaEIN 23-3078729 | Education | PA | $11,496,186Mid-sized | 98.87 |
| Church Hill Activities and TutoringEIN 20-0220263 | Education | VA | $2,156,767Small | 94.70 |
| Citizen SchoolsEIN 04-3259160 | Education | MA | $20,565,491Large | 85.00 |
| City AcademyEIN 31-1619379 | Education | MO | $3,936,148Mid-sized | 86.36 |
| Clarke Schools for Hearing and SpeechEIN 04-2104008 | Education | MA | $11,678,628Mid-sized | 82.72 |
| Classroom CentralEIN 03-0455618 | Education | NC | $5,729,370Mid-sized | 94.74 |
| Classroom, Inc.EIN 13-3666846 | Education | NY | $4,643,853Mid-sized | 87.65 |
| Clear Horizons AcademyEIN 20-2697232 | Education | UT | $622,733Small | 69.34 |
| Cleveland Leadership CenterEIN 34-1927317 | Education | OH | $1,646,527Small | 86.32 |
| Coalition for Engaged EducationEIN 95-4515019 | Education | CA | $1,278,892Small | 79.09 |
| COCAEIN 43-1395056 | Education | MO | $5,999,290Mid-sized | 83.54 |
| Collaborative for Academic, Social, and Emotional LearningEIN 20-5884201 | Education | IL | $6,773,512Mid-sized | 88.56 |
| College Bound, CAEIN 95-4604550 | Education | CA | $709,979Small | 68.46 |
| College Bound, MOEIN 20-4768985 | Education | MO | $2,509,817Small | 91.73 |
| College Now Greater ClevelandEIN 34-6580096 | Education | OH | $12,466,427Mid-sized | 95.47 |
| College PossibleEIN 41-1968798 | Education | MN | $16,391,039Large | 91.38 |
| College TrackEIN 94-3279613 | Education | CA | $18,429,592Large | 96.15 |
| CollegeBound FoundationEIN 52-1598921 | Education | MD | $3,336,619Small | 85.81 |
| Collision Repair Education FoundationEIN 36-3768028 | Education | IL | $11,564,561Mid-sized | 92.54 |
| Colorado Education InitiativeEIN 26-1597530 | Education | CO | $7,489,959Mid-sized | 85.38 |
| Colorado UpLiftEIN 84-0889330 | Education | CO | $5,716,706Mid-sized | 87.29 |
| Columbus Citizens FoundationEIN 13-6118967 | Education | NY | $4,362,512Mid-sized | 85.20 |
| Communities In Schools National OfficeEIN 58-1289174 | Education | VA | $20,927,294Large | 90.78 |
| Communities in Schools of Charlotte Mecklenburg, Inc.EIN 58-1661795 | Education | NC | $6,728,143Mid-sized | 92.07 |
| Communities in Schools of ChicagoEIN 36-3591326 | Education | IL | $2,653,240Small | 91.75 |
| Communities In Schools of GeorgiaEIN 58-1912923 | Education | GA | $2,649,158Small | 85.85 |
| Communities In Schools of HoustonEIN 76-0031827 | Education | TX | $12,788,149Mid-sized | 91.61 |
| Communities In Schools of JacksonvilleEIN 59-3027895 | Education | FL | $7,374,320Mid-sized | 82.87 |
| Communities In Schools of NevadaEIN 88-0292094 | Education | NV | $6,748,695Mid-sized | 91.30 |
| Communities In Schools of Pittsburgh-Allegheny CountyEIN 25-1728521 | Education | PA | $749,377Small | 82.02 |
| Communities in Schools of RichmondEIN 54-1799922 | Education | VA | $3,212,373Small | 87.37 |
| Communities in Schools of the Charleston AreaEIN 57-0915384 | Education | SC | $1,667,084Small | 85.38 |
| Communities In Schools of the Dallas RegionEIN 75-2044117 | Education | TX | $4,919,164Mid-sized | 84.87 |
| Community Crusade for ChildrenEIN 06-1445929 | Education | CT | $2,472,428Small | 66.33 |
| Community Partnership SchoolEIN 20-3195763 | Education | PA | $2,868,551Small | 90.14 |
| Community Preparatory SchoolEIN 22-2485332 | Education | RI | $2,630,532Small | 81.07 |
| ConnCANEIN 20-1612161 | Education | CT | $2,013,054Small | 76.38 |
| Consortium for Graduate Study in ManagementEIN 43-0962198 | Education | MO | $36,743,080Large | 84.82 |
| Constitutional Rights FoundationEIN 95-2219680 | Education | CA | $1,944,718Small | 86.71 |
| Cornerstone Schools AssociationEIN 38-2995984 | Education | MI | $7,238,576Mid-sized | 82.97 |
| Cornerstone Schools of AlabamaEIN 63-0948472 | Education | AL | $4,720,180Mid-sized | 77.92 |
| Cornucopia Institute IncorporatedEIN 20-1075143 | Education | WI | $937,760Small | 94.57 |
| Coro New York Leadership CenterEIN 13-3571610 | Education | NY | $2,587,498Small | 87.70 |
| Coro Northern CaliforniaEIN 94-3117758 | Education | CA | $1,502,444Small | 83.85 |
| Council for Economic EducationEIN 13-1623848 | Education | NY | $5,186,704Mid-sized | 77.37 |
| Council for Educational ChangeEIN 01-0638224 | Education | FL | $2,174,131Small | 85.92 |
| Council of Independent CollegesEIN 01-6004776 | Education | DC | $13,706,554Large | 87.42 |
| Crayons to ClassroomsEIN 26-1594574 | Education | OH | $3,471,859Small | 97.17 |
| Crayons to ComputersEIN 31-1507076 | Education | OH | $10,934,616Mid-sized | 92.38 |
| Daniel Murphy Scholarship FundEIN 36-3675466 | Education | IL | $3,844,516Mid-sized | 90.96 |
| DAPCEPEIN 38-2451827 | Education | MI | $2,229,825Small | 83.85 |
| David Lynch Foundation for Consciousness-Based EducationEIN 83-0436453 | Education | NY | $12,365,779Mid-sized | 92.14 |
| Denver Kids, Inc.EIN 84-1244211 | Education | CO | $2,435,764Small | 82.44 |
| Denver Scholarship FoundationEIN 20-5143175 | Education | CO | $9,338,023Mid-sized | 87.89 |
| Denver Street SchoolEIN 84-1216351 | Education | CO | $1,185,964Small | 88.99 |
| Developments in LiteracyEIN 33-0843213 | Education | CA | $2,641,317Small | 91.12 |