| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
|
Brandon Valley |
$30,105,810.83 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Aberdeen School District 6-1 |
$29,932,128.82 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Todd County School Dist 66-1 |
$29,544,525.50 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Commercial Asphalt & Materials |
$29,408,508.02 |
South Dakota State Checkbook |
| 2025 |
|
Loiseau Construction Inc |
$29,311,133.09 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Harrisburg School District41-2 |
$29,247,316.36 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
City Of Aberdeen |
$29,071,238.43 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Aberdeen School District 6-1 |
$29,012,455.31 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Brandon Valley |
$28,991,722.65 |
South Dakota State Checkbook |
| 2025 |
|
City Of Aberdeen |
$28,971,297.59 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Brandon Valley |
$28,967,298.13 |
South Dakota State Checkbook |
| 2025 |
|
Duininck Inc |
$28,909,598.29 |
South Dakota State Checkbook |
| 2025 |
|
Douglas School Dist No 51-1 |
$28,909,108.12 |
South Dakota State Checkbook |
| 2025 |
|
Huron School District 2-2 |
$28,633,314.61 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Brandon Valley |
$28,507,884.25 |
South Dakota State Checkbook |
| 2019 |
Revenue |
City Of Aberdeen |
$28,183,717.02 |
South Dakota State Checkbook |
| 2025 |
|
Mcgough Construction Co Llc |
$28,175,909.40 |
South Dakota State Checkbook |
| 2024 |
Education |
Brandon Valley |
$28,174,110.25 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Heavy Constructors Inc |
$28,069,635.06 |
South Dakota State Checkbook |
| 2025 |
|
Todd County School Dist 66-1 |
$28,047,835.23 |
South Dakota State Checkbook |
| 2024 |
Education |
Huron School District 2-2 |
$28,002,042.66 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Todd County School Dist 66-1 |
$27,917,596.97 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Duininck Inc |
$27,911,757.86 |
South Dakota State Checkbook |
| 2025 |
|
Anderson Western Inc |
$27,368,208.92 |
South Dakota State Checkbook |
| 2024 |
Social Services |
Redmane Technology Llc |
$27,331,666.05 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Anderson Western Inc |
$27,282,730.30 |
South Dakota State Checkbook |
| 2018 |
Social Services |
Delta Dental Plan Of Sd |
$27,103,504.41 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
T & R Contracting Inc |
$26,883,968.98 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Huron School District 2-2 |
$26,498,766.77 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Anderson Western Inc |
$26,374,765.19 |
South Dakota State Checkbook |
| 2025 |
|
Yankton-City Of |
$26,247,341.63 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Border States Paving Inc |
$26,241,351.57 |
South Dakota State Checkbook |
| 2020 |
Transportation |
D&G Concrete Construction Inc |
$26,015,142.18 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Todd County School Dist 66-1 |
$25,770,687.87 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Douglas School Dist No 51-1 |
$25,525,781.66 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Oglala Lakota County |
$25,430,890.86 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Watertown School District 14-4 |
$25,336,414.88 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
City Of Brookings |
$25,287,143.25 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Watertown--City Of |
$24,904,575.12 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Bx Civil & Construction |
$24,903,785.47 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
D&G Concrete Construction Inc |
$24,792,358.54 |
South Dakota State Checkbook |
| 2025 |
|
Minnehaha County Treasurer |
$24,780,968.30 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Anderson Western Inc |
$24,674,331.89 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Todd County School Dist 66-1 |
$24,527,379.59 |
South Dakota State Checkbook |
| 2025 |
|
Brookings School District 5-1 |
$24,513,939.36 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
City Of Brookings |
$24,505,657.68 |
South Dakota State Checkbook |
| 2017 |
Social Services |
Delta Dental Plan Of Sd |
$24,462,652.40 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Oglala Lakota County |
$24,453,891.29 |
South Dakota State Checkbook |
| 2020 |
Social Services |
Delta Dental Plan Of Sd |
$24,296,112.73 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Heavy Constructors Inc |
$24,214,529.12 |
South Dakota State Checkbook |
| 2025 |
|
City Of Brookings |
$24,145,885.79 |
South Dakota State Checkbook |
| 2024 |
Education |
Brookings School District 5-1 |
$23,871,894.77 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Huron School District 2-2 |
$23,797,200.84 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Bituminous Paving Inc |
$23,685,860.17 |
South Dakota State Checkbook |
| 2024 |
Education |
Douglas School Dist No 51-1 |
$23,613,857.46 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Loiseau Construction Inc |
$23,572,449.35 |
South Dakota State Checkbook |
| 2025 |
|
Shared Resources Inc |
$23,567,225.10 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Complete Concrete Inc |
$23,450,090.79 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Bx Civil & Construction |
$23,444,635.75 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Huron School District 2-2 |
$23,344,654.75 |
South Dakota State Checkbook |
| 2020 |
Education |
Aberdeen School District 6-1 |
$23,162,601.25 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Oglala Lakota County |
$23,150,592.88 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Aberdeen |
$22,936,466.55 |
South Dakota State Checkbook |
| 2025 |
|
Journey Group Companies |
$22,766,879.53 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
City Of Brookings |
$22,543,394.69 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Watertown |
$22,440,272.81 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Brookings-City Of |
$22,373,088.54 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
City Of Mitchell |
$22,296,747.37 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Minnehaha County Treasurer |
$22,247,352.29 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Watertown School District 14-4 |
$22,225,486.14 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Huron School District 2-2 |
$22,210,360.70 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Brookings School District 5-1 |
$22,152,149.08 |
South Dakota State Checkbook |
| 2020 |
Education |
Harrisburg School District41-2 |
$22,104,671.05 |
South Dakota State Checkbook |
| 2025 |
|
Spencer Quarries Inc |
$22,102,869.37 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Foothills Contracting Inc |
$22,067,057.78 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Henry Carlson Construction Llc |
$21,941,183.02 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Brookings School District 5-1 |
$21,903,581.95 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Commercial Asphalt & Materials |
$21,862,334.46 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Aberdeen School District 6-1 |
$21,729,113.18 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Anderson Western Inc |
$21,728,487.50 |
South Dakota State Checkbook |
| 2024 |
Education |
Watertown School District 14-4 |
$21,722,201.97 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Watertown School District 14-4 |
$21,664,878.56 |
South Dakota State Checkbook |
| 2020 |
Education |
Brandon Valley |
$21,544,782.36 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Brookings |
$21,481,643.82 |
South Dakota State Checkbook |
| 2024 |
Education |
Mitchell School District 17-2 |
$21,396,922.33 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Minnehaha County Treasurer |
$21,377,385.79 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
City Of Mitchell |
$21,305,400.89 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Douglas School Dist No 51-1 |
$21,263,529.59 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Duininck Inc |
$21,206,147.59 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Sanford Medical Center |
$21,195,945.35 |
South Dakota State Checkbook |
| 2025 |
|
M10 Inc |
$21,086,611.54 |
South Dakota State Checkbook |
| 2020 |
Education |
Todd County School Dist 66-1 |
$20,864,882.81 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Watertown School District |
$20,739,093.72 |
South Dakota State Checkbook |
| 2021 |
South Dakota State Checkbook |
Minnehaha County Treasurer |
$20,598,830.07 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Watertown School District 14-4 |
$20,535,762.39 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Aberdeen School District 6-1 |
$20,402,316.41 |
South Dakota State Checkbook |
| 2023 |
South Dakota State Checkbook |
Spencer Quarries Inc |
$20,359,802.61 |
South Dakota State Checkbook |
| 2025 |
|
Heavy Constructors Inc |
$20,289,580.12 |
South Dakota State Checkbook |
| 2022 |
South Dakota State Checkbook |
Central Specialties Inc |
$20,178,266.74 |
South Dakota State Checkbook |
| 2025 |
|
Mitchell School District 17-2 |
$20,081,537.02 |
South Dakota State Checkbook |