| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
|
Hamlin School District 28-3 |
$5,180,173.47 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Tri-Valley School Dist No 49-6 |
$5,163,688.95 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Ti-Zack Concrete Inc |
$5,161,736.49 |
South Dakota State Checkbook |
| 2024 |
Education |
Dell Rapids School District |
$5,158,451.76 |
South Dakota State Checkbook |
| 2024 |
Health |
Black Hills Special Services |
$5,156,041.37 |
South Dakota State Checkbook |
| 2025 |
|
City Of Tea |
$5,143,733.55 |
South Dakota State Checkbook |
| 2025 |
|
Lehtola Builders Inc |
$5,132,906.04 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Interlakes Community Action Pt |
$5,131,744.85 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Prahm Construction Inc |
$5,126,843.52 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Metropolitan Life Ins |
$5,125,718.26 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Eagle Butte School District |
$5,121,887.84 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
North Sioux City--City Of |
$5,118,373.74 |
South Dakota State Checkbook |
| 2025 |
|
Sdn Communications Llc |
$5,108,763.79 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Mckesson Medical Surgical |
$5,104,058.83 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Diamond Surface Inc |
$5,101,554.56 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Sisseton School District 54-2 |
$5,100,975.49 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Milbank School District 25-4 |
$5,097,153.99 |
South Dakota State Checkbook |
| 2020 |
Bureau Of Human Resources |
Metropolitan Life Ins |
$5,095,932.84 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Cheyenne River Sioux Trib |
$5,072,401.77 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Mmgy Global Llc |
$5,067,735.16 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Mclaughlin School Dist 15-2 |
$5,063,307.19 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Human Resources |
Reliastar Life Ins Co |
$5,055,972.76 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Madison Central School |
$5,050,496.36 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Crocker Wind Farm Llc |
$5,044,209.59 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
City Of Belle Fourche |
$5,037,635.08 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Tri-Valley School Dist No 49-6 |
$5,035,443.94 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Zandstra Construction Inc |
$5,031,149.27 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Dell Rapids School District |
$5,028,462.53 |
South Dakota State Checkbook |
| 2020 |
Education |
Rapid City Area School Distrit |
$5,027,365.87 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Sisseton School District 54-2 |
$5,020,808.99 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Cheyenne River Sioux Trib |
$5,019,604.36 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Vermillion School Dist 13-1 |
$5,018,551.51 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Minnehaha County Auditor |
$5,017,308.65 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Prairie States Trucking Inc |
$5,016,709.01 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Asphalt Surface Technologies |
$5,013,631.85 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Pennington County Auditor |
$5,010,558.41 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Rapid City Area School Distrit |
$5,006,714.82 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Riverside Technologies Inc |
$5,006,451.09 |
South Dakota State Checkbook |
| 2024 |
Revenue |
Cheyenne River Sioux Trib |
$5,005,063.77 |
South Dakota State Checkbook |
| 2025 |
|
Sharpe Enterprises Inc |
$5,000,045.64 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Black Hills Works |
$5,000,000.00 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Shi International Corp |
$4,995,387.80 |
South Dakota State Checkbook |
| 2025 |
|
Reynolds Construction Mgmt |
$4,990,456.20 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Avera Health |
$4,986,684.91 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Canton School District No 41-1 |
$4,986,452.68 |
South Dakota State Checkbook |
| 2020 |
Education |
Lennox School District No 41-4 |
$4,982,201.52 |
South Dakota State Checkbook |
| 2025 |
|
Midwest Dairy Association |
$4,975,698.00 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Dupree School District 64-2 |
$4,973,613.22 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Simon Contractors Of Sd Inc |
$4,973,478.42 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Interstate Improvement Inc |
$4,971,762.18 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Imagine Agency Llc |
$4,965,824.81 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
C Eagle Construction Llc |
$4,963,939.51 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Metropolitan Life Ins |
$4,956,797.12 |
South Dakota State Checkbook |
| 2018 |
Health |
Cardinal Health Inc |
$4,951,622.18 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Milbank School District 25-4 |
$4,945,238.16 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Pci Roads Llc |
$4,941,929.35 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Brown County Treasurer |
$4,927,460.97 |
South Dakota State Checkbook |
| 2024 |
Revenue |
North Sioux City--City Of |
$4,926,463.60 |
South Dakota State Checkbook |
| 2025 |
|
Sioux Valley School District |
$4,925,839.23 |
South Dakota State Checkbook |
| 2024 |
Bureau Of Information & Tele. |
Carahsoft Technology Corp |
$4,924,022.51 |
South Dakota State Checkbook |
| 2025 |
|
Cheyenne River Sioux Trib |
$4,914,039.29 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Central Specialties Inc |
$4,913,850.79 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Flandreau School Dist No 50-3 |
$4,907,420.43 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Milbank School District 25-4 |
$4,905,102.76 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Vermillion School Dist 13-1 |
$4,899,852.45 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Prairie States Trucking Inc |
$4,894,391.26 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Cardinal Health Inc |
$4,890,718.72 |
South Dakota State Checkbook |
| 2018 |
Tourism |
Lawrence & Schiller Inc |
$4,885,749.21 |
South Dakota State Checkbook |
| 2024 |
Transportation |
The Road Guy Construction Co |
$4,879,308.53 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Surface Preparation Technology |
$4,863,334.33 |
South Dakota State Checkbook |
| 2018 |
Revenue |
Rosebud Sioux Tribe |
$4,862,994.66 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Brosz Engineering Inc |
$4,862,039.29 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Milbank School District 25-4 |
$4,857,691.96 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
White River School Dist 47-1 |
$4,852,034.21 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Bowling Green Inn Of Sd |
$4,845,950.60 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Riverside Technologies Inc |
$4,835,709.74 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Flandreau School Dist No 50-3 |
$4,829,222.76 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Hot Springs School Dist 23-2 |
$4,817,446.91 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Ainsworth-Benning Constr Inc |
$4,816,260.81 |
South Dakota State Checkbook |
| 2017 |
Health |
Cardinal Health Inc |
$4,815,568.21 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Valley Communications Inc |
$4,813,147.76 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Information & Tele. |
Shi International Corp |
$4,812,202.78 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Hdr Engineering Inc |
$4,808,621.74 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Dell Rapids School District |
$4,805,726.20 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Black Hills Power & Light Co |
$4,804,437.96 |
South Dakota State Checkbook |
| 2025 |
|
Tripp County Water User Distr |
$4,796,036.69 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Rapid City Pierre & East Rr |
$4,792,975.39 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Tri-Valley School Dist No 49-6 |
$4,788,731.47 |
South Dakota State Checkbook |
| 2024 |
Revenue |
Brookings County Treasurer |
$4,783,422.29 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
Lennox City Of |
$4,783,191.08 |
South Dakota State Checkbook |
| 2025 |
|
Chamberlain School District |
$4,774,307.48 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Interlakes Community Action Pt |
$4,772,577.16 |
South Dakota State Checkbook |
| 2025 |
|
Lyman School District No 42-1 |
$4,771,475.60 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Lincoln County Treasurer |
$4,756,620.76 |
South Dakota State Checkbook |
| 2020 |
Social Services |
Lewis & Clark Behvrl Hlth Svcs |
$4,753,128.42 |
South Dakota State Checkbook |
| 2025 |
|
Hamm Contracting Llc |
$4,748,478.50 |
South Dakota State Checkbook |
| 2025 |
|
Pennington County Auditor |
$4,732,288.36 |
South Dakota State Checkbook |
| 2025 |
|
Bowling Green Inn Of Sd |
$4,726,327.35 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
Web Water Development Assn Inc |
$4,724,101.25 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Dupree School District 64-2 |
$4,701,952.29 |
South Dakota State Checkbook |