Home Organizations South Dakota Every cause Civil rights and advocacy 22 Environment and climate 103 Labor unions and worker centers 81 Housing and homelessness 74 Immigrant services and rights 6 Food banks and hunger 56 Legal aid 2 Voting and civic participation 7 Community health and reproductive care 12 LGBTQ+ services and rights 5 Criminal justice reform and reentry 9 Civil rights and advocacy (22) Organization City Type Revenue Alpha CenterEIN 36-3347022 · filings Sioux Falls Charity, 501(c)(3) $2.1 million Sioux Falls Area Court Appointed Special Advocate ProgramEIN 46-0430647 · filings Sioux Falls Charity, 501(c)(3) $825,739 Northern Hills Area Casa ProgramEIN 46-0399483 · filings Spearfish Charity, 501(c)(3) $470,483 7th Circuit Court Appointed Special Advocate ProgramEIN 46-0402202 · filings Rapid City Charity, 501(c)(3) $378,000 Coup CouncilEIN 82-5006521 · filings Rapid City Charity, 501(c)(3) $366,183 South Dakota Right To Life Committee IncEIN 46-0367004 · filings Sioux Falls Advocacy, 501(c)(4) $205,881 Naomi ProjectEIN 35-2611927 · filings Sioux Falls Charity, 501(c)(3) $150,944 Vermillion Sd PrideEIN 93-2320597 · filings Vermillion Charity, 501(c)(3) $4,356 Sd Citizens For Liberty IncEIN 27-3244200 · filings Rapid City Advocacy, 501(c)(4) — United States Internet Preservation SocietyEIN 33-2907939 · filings Watertown Advocacy, 501(c)(4) — Rainbow Project Sioux FallsEIN 33-4443401 · filings Sioux Falls Charity, 501(c)(3) — Lutherans For Life Of South Dakota IncEIN 37-1588685 · filings Rapid City Charity, 501(c)(3) —
The 22 largest →
Environment and climate (103) Organization City Type Revenue South Dakota High School Activities AssociationEIN 46-0226282 · filings Pierre Charity, 501(c)(3) $3.8 million Red Cloud RenewableEIN 81-1578843 · filings Pine Ridge Charity, 501(c)(3) $2.1 million South Dakota Association Of Conservations Districts IncEIN 46-6017029 · filings Pierre Charity, 501(c)(3) $1.7 million Belle Fourche River Watershed PartnershipEIN 31-1743529 · filings Belle Fourche Charity, 501(c)(3) $1.6 million Buffalo Nations Grasslands AllianceEIN 86-3303913 · filings Lower Brule Charity, 501(c)(3) $1.3 million South Dakota Soil Health CoalitionEIN 47-4466737 · filings Pierre Charity, 501(c)(3) $1.2 million Tri County Landfill Association IncEIN 46-0425287 · filings Pukwana Charity, 501(c)(3) $1.1 million Big Sioux Nursery IncEIN 46-0442973 · filings Watertown Charity, 501(c)(3) $863,656 The Second Century Habitat Fund IncEIN 81-4526362 · filings Pierre Charity, 501(c)(3) $619,463 Northern Prairies Land TrustEIN 46-0457858 · filings Sioux Falls Charity, 501(c)(3) $595,730 Great Plains Tribal Water AllianceincEIN 20-4096132 · filings Pine Ridge Charity, 501(c)(3) $572,513 Northwest South Dakota Regional Landfill Association IncEIN 46-0425339 · filings Lemmon Charity, 501(c)(3) $434,373
The 103 largest →
Labor unions and worker centers (81) Organization City Type Revenue Farmers Educational & Cooperative Union Of AmericaEIN 46-0132880 · filings Huron Labor organization, 501(c)(5) $4.5 million South Dakota Farm Bureau FederationEIN 46-0191750 · filings Huron Labor organization, 501(c)(5) $3.4 million International Brotherhood Of Electrical WorkersEIN 46-0136667 · filings Sioux Falls Labor organization, 501(c)(5) $2.1 million United Food And Commercial Workers International UnionEIN 46-0198175 · filings Sioux Falls Labor organization, 501(c)(5) $1.2 million International Brotherhood Of Electrical WorkersEIN 46-0225587 · filings Rapid City Labor organization, 501(c)(5) $367,240 Laborers International Union Of North AmericaEIN 26-1180181 · filings Sioux Falls Labor organization, 501(c)(5) $365,550 International Association Of FirefightersEIN 46-0321558 · filings Sioux Falls Labor organization, 501(c)(5) $301,508 American Federation Of Labor & Congress Of Industrial OrgsEIN 46-0191753 · filings Sioux Falls Labor organization, 501(c)(5) $166,909 International Brotherhood Of Electrical WorkersEIN 46-6014903 · filings Watertown Labor organization, 501(c)(5) $155,567 Sioux Falls Education AssociationEIN 46-0307075 · filings Sioux Falls Labor organization, 501(c)(5) $114,383 Fraternal Order Of Police Labor CouncilEIN 26-4178802 · filings Sioux Falls Labor organization, 501(c)(5) $104,144 American Postal Workers UnionEIN 46-6014943 · filings Sioux Falls Labor organization, 501(c)(5) $86,187
The 81 largest →
Housing and homelessness (74) Organization City Type Revenue Oglala Lakota Housing AuthorityEIN 30-1386293 · filings Pine Ridge Charity, 501(c)(3) $38.3 million Cedar Lake Village IncEIN 48-1209650 · filings Sioux Falls Charity, 501(c)(3) $15.9 million Village Of Harmony HillEIN 87-1680315 · filings Watertown Charity, 501(c)(3) $6.7 million Mazaska Owecaso Otipi Financial IncEIN 76-0761743 · filings Pine Ridge Charity, 501(c)(3) $5.6 million Habitat For Humanity International IncEIN 46-0410933 · filings Rapid City Charity, 501(c)(3) $4.9 million Mitchell Area Housing IncEIN 88-0973960 · filings Mitchell Charity, 501(c)(3) $3.5 million Ponderosa Apartments IncEIN 23-7232223 · filings Spearfish Charity, 501(c)(3) $3.4 million Sunnycrest VillageEIN 46-0278493 · filings Sioux Falls Charity, 501(c)(3) $3.4 million OneheartEIN 83-4200317 · filings Rapid City Charity, 501(c)(3) $2.5 million Neighborhood Housing Services Of The Black HillsEIN 46-0423151 · filings Deadwood Charity, 501(c)(3) $1.4 million Southeast Technical Institute Housing FoundationEIN 46-2014496 · filings Sioux Falls Charity, 501(c)(3) $1.3 million Beacon CenterEIN 46-0358638 · filings Watertown Charity, 501(c)(3) $1.1 million
The 74 largest →
Immigrant services and rights (6) Organization City Type Revenue One SpiritEIN 26-3592983 · filings Rapid City Charity, 501(c)(3) $1.5 million Native American Community BoardEIN 46-0392867 · filings Lake Andes Charity, 501(c)(3) $1.4 million Dakota Indian Foundation IncEIN 23-7112391 · filings Chamberlain Charity, 501(c)(3) $690,493 Glacial Lakes Multicultural Center IncEIN 83-4070282 · filings Watertown Charity, 501(c)(3) $24,109 WelcomeEIN 39-3211930 · filings Rapid City Charity, 501(c)(3) — West River ResettlementEIN 99-0874189 · filings Rapid City Charity, 501(c)(3) —
Food banks and hunger (56) Organization City Type Revenue Feeding South DakotaEIN 36-3293534 · filings Sioux Falls Charity, 501(c)(3) $32.2 million The BanquetEIN 46-0387495 · filings Sioux Falls Charity, 501(c)(3) $2.2 million Fork Real Community Cafe IncEIN 81-3611770 · filings Rapid City Charity, 501(c)(3) $827,314 Feeding VermillionEIN 46-0445636 · filings Vermillion Charity, 501(c)(3) $334,497 Brookings Back Pack ProjectEIN 81-3314886 · filings Brookings Charity, 501(c)(3) $197,062 Mitchell Food Pantry IncorporatedEIN 45-2827530 · filings Mitchell Charity, 501(c)(3) $193,428 Bread BreakEIN 87-1102376 · filings Sioux Falls Charity, 501(c)(3) $177,487 Custer Food Pantry IncEIN 20-2438046 · filings Custer Charity, 501(c)(3) $163,690 Yankton Food For ThoughtEIN 82-2234584 · filings Yankton Charity, 501(c)(3) $161,105 Watertown Area People Against Child HungerEIN 46-3296115 · filings Watertown Charity, 501(c)(3) $159,200 Lunch Is Served IncEIN 20-3832197 · filings Sioux Falls Charity, 501(c)(3) $149,323 Spearfish Community PantryEIN 91-2198217 · filings Spearfish Charity, 501(c)(3) $139,728
The 56 largest →
Legal aid (2) Organization City Type Revenue East River Legal Services CorporationEIN 23-7101054 · filings Sioux Falls Charity, 501(c)(3) $2.0 million Access To Justice IncEIN 20-3203101 · filings Pierre Charity, 501(c)(3) $279,294
Voting and civic participation (7) Organization City Type Revenue Black Hills Badges For Hope IncEIN 82-5471458 · filings Rapid City Charity, 501(c)(3) $90,638 League Of Women Voters Of South DakotaEIN 23-7079269 · filings Sioux Falls Advocacy, 501(c)(4) — Sd Citizens For Liberty IncEIN 27-3244200 · filings Rapid City Advocacy, 501(c)(4) — Constitutional National CommitteeEIN 47-2534082 · filings Hartford Advocacy, 501(c)(4) — Bristol Handke Jubilee ParkEIN 85-3232745 · filings Bristol Charity, 501(c)(3) — Columbia Community CaresEIN 88-3730608 · filings Columbia Charity, 501(c)(3) — MissrepresentationEIN 93-2288688 · filings Aberdeen Charity, 501(c)(3) —
Community health and reproductive care (12) Organization City Type Revenue Horizon Health Care IncEIN 46-0341255 · filings Howard Charity, 501(c)(3) $34.3 million Community Healthcare Association Of The DakotasEIN 36-3377788 · filings Sioux Falls Charity, 501(c)(3) $4.3 million Black Hills Crisis Pregnancy CenterEIN 36-3371919 · filings Rapid City Charity, 501(c)(3) $405,547 Bella Pregnancy Resource CenterEIN 36-3495588 · filings Spearfish Charity, 501(c)(3) $386,442 Teddy Bear DenEIN 31-1802800 · filings Sioux Falls Charity, 501(c)(3) $331,949 Zoecare IncEIN 84-3324216 · filings Yankton Charity, 501(c)(3) $314,234 Good Shepherd Clinic IncEIN 26-3758151 · filings Spearfish Charity, 501(c)(3) $118,088 National Abstinence Clearing HouseEIN 46-0446416 · filings Sioux Falls Charity, 501(c)(3) $95,980 St Francis Mission Dental ClinicEIN 27-3144815 · filings Saint Francis Charity, 501(c)(3) $63,394 Servant Hearts Clinic IncEIN 45-1710807 · filings Yankton Charity, 501(c)(3) $55,279 Splitrock Clinic AssociationEIN 46-0357190 · filings Garretson Charity, 501(c)(3) — Birthright Of PierreEIN 46-2307988 · filings Pierre Charity, 501(c)(3) —
LGBTQ+ services and rights (5) Organization City Type Revenue Vermillion Sd PrideEIN 93-2320597 · filings Vermillion Charity, 501(c)(3) $4,356 Rainbow Project Sioux FallsEIN 33-4443401 · filings Sioux Falls Charity, 501(c)(3) — Equality South Dakota InstituteEIN 47-4467816 · filings Brookings Charity, 501(c)(3) — Transaction South DakotaEIN 82-1567043 · filings Sioux Falls Charity, 501(c)(3) — Pierre Area Center For EqualityEIN 82-5449797 · filings Pierre Charity, 501(c)(3) —
Criminal justice reform and reentry (9) Organization City Type Revenue Native American Heritage AssociationEIN 46-0414390 · filings Black Hawk Charity, 501(c)(3) $108.3 million Coup CouncilEIN 82-5006521 · filings Rapid City Charity, 501(c)(3) $366,183 Mnikata OtakuyeEIN 39-4488659 · filings Hot Springs Charity, 501(c)(3) — Paid In Full South DakotaEIN 41-2624137 · filings Sioux Falls Charity, 501(c)(3) — Hope Prison MinisteryEIN 46-0462412 · filings Sioux Falls Charity, 501(c)(3) — South Dakotans For Alternatives To The Death Penalty IncEIN 47-4742254 · filings Sioux Falls Charity, 501(c)(3) — At The Well And BeyondEIN 81-1554555 · filings Sioux Falls Charity, 501(c)(3) — Wo Ohitike To Have Courage IncEIN 84-4060898 · filings Sioux Falls Charity, 501(c)(3) — Wiconi LecalaEIN 99-3044224 · filings Rapid City Charity, 501(c)(3) —
Matched by IRS activity code and listed by the revenue on the organization's latest return. Inclusion is not an endorsement; check an organization's own site and filings before you give. Gifts to 501(c)(4) and 501(c)(5) organizations are not tax-deductible.
Source: IRS Exempt Organizations Business Master File . Updated Nov 9, 2026.