| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2019 |
Bureau Of Finance Management |
Commercial Asphalt & Materials |
$29,408,508.02 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Loiseau Construction Inc |
$29,311,133.09 |
South Dakota State Checkbook |
| 2025 |
Education |
Brandon Valley |
$29,250,082.61 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Harrisburg School District41-2 |
$29,247,316.36 |
South Dakota State Checkbook |
| 2022 |
Education |
Aberdeen School District 6-1 |
$29,244,813.73 |
South Dakota State Checkbook |
| 2023 |
Education |
Todd County School Dist 66-1 |
$29,176,749.17 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Brandon Valley |
$28,991,722.65 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Duininck Inc |
$28,901,554.48 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
T & R Contracting Inc |
$28,837,904.85 |
South Dakota State Checkbook |
| 2025 |
Education |
Douglas School Dist No 51-1 |
$28,429,315.45 |
South Dakota State Checkbook |
| 2022 |
Education |
Brandon Valley |
$28,373,668.34 |
South Dakota State Checkbook |
| 2019 |
Revenue |
City Of Aberdeen |
$28,183,717.02 |
South Dakota State Checkbook |
| 2024 |
Education |
Brandon Valley |
$28,174,110.25 |
South Dakota State Checkbook |
| 2025 |
Education |
Huron School District 2-2 |
$28,114,446.81 |
South Dakota State Checkbook |
| 2021 |
Education |
Aberdeen School District 6-1 |
$28,083,776.20 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Heavy Constructors Inc |
$28,069,635.06 |
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 |
| 2021 |
Education |
Brandon Valley |
$27,785,492.73 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
Sioux Falls-City Of |
$27,704,969.55 |
South Dakota State Checkbook |
| 2025 |
Education |
Todd County School Dist 66-1 |
$27,609,581.23 |
South Dakota State Checkbook |
| 2025 |
Transportation |
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 |
Transportation |
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 |
| 2020 |
Transportation |
Anderson Western Inc |
$26,374,765.19 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Border States Paving Inc |
$26,241,351.57 |
South Dakota State Checkbook |
| 2022 |
Education |
Huron School District 2-2 |
$26,045,770.59 |
South Dakota State Checkbook |
| 2020 |
Transportation |
D&G Concrete Construction Inc |
$26,015,142.18 |
South Dakota State Checkbook |
| 2021 |
Social Services |
Delta Dental Plan Of Sd |
$25,594,359.90 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Douglas School Dist No 51-1 |
$25,525,781.66 |
South Dakota State Checkbook |
| 2022 |
Education |
Todd County School Dist 66-1 |
$25,364,458.09 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Watertown School District 14-4 |
$25,336,414.88 |
South Dakota State Checkbook |
| 2022 |
Education |
Oglala Lakota County |
$25,165,398.15 |
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 |
| 2023 |
Transportation |
Anderson Western Inc |
$24,674,331.89 |
South Dakota State Checkbook |
| 2017 |
Social Services |
Delta Dental Plan Of Sd |
$24,462,652.40 |
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 |
| 2022 |
Revenue |
City Of Aberdeen |
$24,083,640.69 |
South Dakota State Checkbook |
| 2021 |
Education |
Todd County School Dist 66-1 |
$24,051,270.82 |
South Dakota State Checkbook |
| 2016 |
Social Services |
Delta Dental Plan Of Sd |
$23,972,731.62 |
South Dakota State Checkbook |
| 2025 |
Education |
Brookings School District 5-1 |
$23,971,161.81 |
South Dakota State Checkbook |
| 2024 |
Education |
Brookings School District 5-1 |
$23,871,894.77 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Aberdeen |
$23,835,613.39 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Huron School District 2-2 |
$23,797,200.84 |
South Dakota State Checkbook |
| 2021 |
Revenue |
City Of Aberdeen |
$23,745,747.49 |
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 |
Agriculture & Nat. Resources |
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 |
Revenue |
City Of Aberdeen |
$23,343,829.37 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Watertown |
$23,272,523.05 |
South Dakota State Checkbook |
| 2021 |
Education |
Oglala Lakota County |
$23,240,676.77 |
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 |
| 2025 |
Revenue |
Minnehaha County Treasurer |
$23,137,307.35 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Aberdeen |
$22,936,466.55 |
South Dakota State Checkbook |
| 2023 |
Education |
Huron School District 2-2 |
$22,878,946.89 |
South Dakota State Checkbook |
| 2023 |
Revenue |
City Of Watertown |
$22,610,821.31 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Brookings |
$22,474,680.49 |
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 |
| 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 |
Transportation |
Spencer Quarries Inc |
$22,102,869.37 |
South Dakota State Checkbook |
| 2023 |
Transportation |
Foothills Contracting Inc |
$22,067,057.78 |
South Dakota State Checkbook |
| 2022 |
Revenue |
City Of Watertown |
$21,863,859.10 |
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 |
| 2022 |
Education |
Watertown School District 14-4 |
$21,698,355.78 |
South Dakota State Checkbook |
| 2020 |
Education |
Brandon Valley |
$21,544,782.36 |
South Dakota State Checkbook |
| 2023 |
Education |
Brookings School District 5-1 |
$21,526,222.34 |
South Dakota State Checkbook |
| 2021 |
Education |
Huron School District 2-2 |
$21,512,466.08 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Brookings |
$21,481,643.82 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Journey Group Companies |
$21,453,267.45 |
South Dakota State Checkbook |
| 2024 |
Education |
Mitchell School District 17-2 |
$21,396,922.33 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Duininck Inc |
$21,206,147.59 |
South Dakota State Checkbook |
| 2025 |
Transportation |
M10 Inc |
$21,086,611.54 |
South Dakota State Checkbook |
| 2021 |
Education |
Watertown School District 14-4 |
$21,022,139.66 |
South Dakota State Checkbook |
| 2021 |
Education |
Douglas School Dist No 51-1 |
$20,903,629.96 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Minnehaha County Treasurer |
$20,875,127.90 |
South Dakota State Checkbook |
| 2020 |
Education |
Todd County School Dist 66-1 |
$20,864,882.81 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
Mclaughlin & Schulz Inc |
$20,640,558.28 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Aberdeen School District 6-1 |
$20,402,316.41 |
South Dakota State Checkbook |
| 2023 |
Transportation |
Spencer Quarries Inc |
$20,359,802.61 |
South Dakota State Checkbook |
| 2022 |
Transportation |
Central Specialties Inc |
$20,178,266.74 |
South Dakota State Checkbook |
| 2023 |
Education |
Watertown School District 14-4 |
$20,050,780.48 |
South Dakota State Checkbook |
| 2022 |
Revenue |
Minnehaha County Treasurer |
$20,032,288.53 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Loiseau Construction Inc |
$20,007,834.76 |
South Dakota State Checkbook |
| 2023 |
Education |
Watertown School District |
$19,976,112.05 |
South Dakota State Checkbook |
| 2023 |
Revenue |
City Of Brookings |
$19,930,565.89 |
South Dakota State Checkbook |