| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2016 |
Bureau Of Human Resources |
Delta Dental Plan Of Sd |
$6,978,112.15 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Lennox School District No 41-4 |
$6,931,994.76 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Sioux Falls Regional Airport |
$6,923,147.94 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Complete Concrete Inc |
$6,908,806.84 |
South Dakota State Checkbook |
| 2025 |
Social Services |
Interstate Office Products Inc |
$6,901,262.63 |
South Dakota State Checkbook |
| 2020 |
Education |
West Central School Dist 49-7 |
$6,870,368.43 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Pennington County Treasurer |
$6,849,050.50 |
South Dakota State Checkbook |
| 2024 |
Education |
Western Dakota Technical Colle |
$6,813,120.38 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
Railworks Track Systems Inc |
$6,791,791.60 |
South Dakota State Checkbook |
| 2023 |
Social Services |
Lewis & Clark Behvrl Hlth Svcs |
$6,781,266.57 |
South Dakota State Checkbook |
| 2021 |
Transportation |
City Of Watertown |
$6,725,051.46 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Monroe Truck Equipment Inc |
$6,722,029.91 |
South Dakota State Checkbook |
| 2024 |
Public Safety |
Avera Mckennan |
$6,714,402.64 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Journey Group Companies |
$6,709,748.70 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
I-State Truck Inc |
$6,694,497.36 |
South Dakota State Checkbook |
| 2025 |
Governor's Office |
Alliance Communications Coop |
$6,687,655.07 |
South Dakota State Checkbook |
| 2021 |
Bureau Of Finance & Management |
City Of Aberdeen |
$6,684,018.52 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Vermillion |
$6,682,759.69 |
South Dakota State Checkbook |
| 2021 |
Bureau Of Finance & Management |
The Evangelical Lutheran Good |
$6,667,600.00 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Heavy Constructors Inc |
$6,657,391.29 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Human Resources |
Metropolitan Life Ins |
$6,638,803.47 |
South Dakota State Checkbook |
| 2024 |
Education |
Black Hills Special Services |
$6,637,324.24 |
South Dakota State Checkbook |
| 2024 |
Bureau Of Administration |
Mcgough Construction Co Llc |
$6,613,262.94 |
South Dakota State Checkbook |
| 2020 |
Revenue |
Deadwood City Of |
$6,613,108.57 |
South Dakota State Checkbook |
| 2024 |
Corrections |
Nelco Architecture Inc |
$6,612,712.50 |
South Dakota State Checkbook |
| 2022 |
Revenue |
Pennington County Treasurer |
$6,599,163.31 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Oglala Sioux Tribe |
$6,593,699.05 |
South Dakota State Checkbook |
| 2023 |
Governor's Office |
Northern States Power Co |
$6,592,173.67 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Vermillion-City Of |
$6,588,493.34 |
South Dakota State Checkbook |
| 2024 |
Revenue |
Oglala Sioux Tribe |
$6,559,468.71 |
South Dakota State Checkbook |
| 2019 |
Tourism |
Mmgy Global Llc |
$6,525,774.85 |
South Dakota State Checkbook |
| 2024 |
Governor's Office |
Interstate Telecommunication |
$6,515,748.83 |
South Dakota State Checkbook |
| 2024 |
Revenue |
Fast Lp |
$6,515,000.00 |
South Dakota State Checkbook |
| 2024 |
Education |
Milbank School District 25-4 |
$6,507,181.12 |
South Dakota State Checkbook |
| 2025 |
Education |
Flandreau School Dist No 50-3 |
$6,481,702.03 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
West Central School Dist 49-7 |
$6,469,698.81 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Madison Central School |
$6,460,075.21 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Administration |
Watertown School District |
$6,457,635.54 |
South Dakota State Checkbook |
| 2022 |
Transportation |
Bowes Construction Inc |
$6,456,125.13 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Hdr Engineering Inc |
$6,416,833.86 |
South Dakota State Checkbook |
| 2023 |
Transportation |
Ti-Zack Concrete Inc |
$6,412,594.61 |
South Dakota State Checkbook |
| 2021 |
Revenue |
Pennington County Treasurer |
$6,399,708.34 |
South Dakota State Checkbook |
| 2024 |
Education |
White River School Dist 47-1 |
$6,390,739.87 |
South Dakota State Checkbook |
| 2021 |
Education |
Lennox School District No 41-4 |
$6,364,637.28 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
West Central School Dist 49-7 |
$6,360,839.72 |
South Dakota State Checkbook |
| 2024 |
Health |
W W Grainger Inc |
$6,358,866.27 |
South Dakota State Checkbook |
| 2025 |
Agriculture & Nat. Resources |
Yankton-City Of |
$6,358,004.12 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
Kingbrook Rural Water System |
$6,354,603.42 |
South Dakota State Checkbook |
| 2021 |
Bureau Of Finance & Management |
Monument Health Rapid City Hos |
$6,332,565.00 |
South Dakota State Checkbook |
| 2022 |
Governor's Office |
Venture Communications Co-Op |
$6,326,992.75 |
South Dakota State Checkbook |
| 2024 |
Bureau Of Information & Tele. |
Dell Marketing Lp |
$6,324,296.13 |
South Dakota State Checkbook |
| 2017 |
State Auditor |
Discovery Benefits Inc |
$6,318,626.01 |
South Dakota State Checkbook |
| 2022 |
Education |
Lennox School District No 41-4 |
$6,313,084.61 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Clark County Auditor |
$6,310,672.92 |
South Dakota State Checkbook |
| 2019 |
Revenue |
Sturgis - City Of |
$6,295,203.05 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Industrial Builders Inc |
$6,285,300.18 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Knife River Midwest Llc |
$6,275,278.54 |
South Dakota State Checkbook |
| 2021 |
Education |
Mitchell Technical College |
$6,274,062.48 |
South Dakota State Checkbook |
| 2021 |
Transportation |
City Of Aberdeen |
$6,272,023.21 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Simon Contractors Of Sd Inc |
$6,269,141.92 |
South Dakota State Checkbook |
| 2019 |
Revenue |
International Registrationpla |
$6,251,103.92 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Simon Contractors |
$6,246,793.77 |
South Dakota State Checkbook |
| 2021 |
Education |
Wagner Community School 11-4 |
$6,239,559.03 |
South Dakota State Checkbook |
| 2025 |
Bureau Of Administration |
Metropolitan Life Ins |
$6,235,628.38 |
South Dakota State Checkbook |
| 2021 |
Revenue |
Oglala Sioux Tribe |
$6,233,209.34 |
South Dakota State Checkbook |
| 2025 |
Revenue |
Rosebud Sioux Tribe |
$6,226,254.06 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
City Of Lake Preston |
$6,214,580.85 |
South Dakota State Checkbook |
| 2017 |
Tourism |
Lawrence & Schiller Inc |
$6,212,185.71 |
South Dakota State Checkbook |
| 2020 |
Education |
Mitchell Technical College |
$6,205,204.25 |
South Dakota State Checkbook |
| 2016 |
Game, Fish And Parks |
Scull Construction Service Inc |
$6,200,871.74 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Rapid City-City Of |
$6,185,435.26 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
Brookings City Of |
$6,184,076.98 |
South Dakota State Checkbook |
| 2018 |
Revenue |
Pennington County Treasurer |
$6,173,501.34 |
South Dakota State Checkbook |
| 2025 |
Bureau Of Finance & Management |
Sierra-Cedar Llc |
$6,163,869.50 |
South Dakota State Checkbook |
| 2016 |
Tourism |
Lawrence & Schiller Inc |
$6,163,651.12 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Rapid City -- City Of |
$6,154,937.15 |
South Dakota State Checkbook |
| 2025 |
Agriculture & Nat. Resources |
Randall Community Water Dist |
$6,153,444.40 |
South Dakota State Checkbook |
| 2022 |
Education |
Bennett County School Dist 3-1 |
$6,152,298.33 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Rapid City-City Of |
$6,137,665.94 |
South Dakota State Checkbook |
| 2020 |
Transportation |
Hamm Contracting Llc |
$6,124,882.93 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Hamm Contracting Llc |
$6,120,393.19 |
South Dakota State Checkbook |
| 2023 |
Education |
Sisseton School District 54-2 |
$6,116,567.55 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Dakota Valley School Dist 61-8 |
$6,110,655.59 |
South Dakota State Checkbook |
| 2023 |
Education |
Winner School District 59-2 |
$6,101,503.28 |
South Dakota State Checkbook |
| 2022 |
Revenue |
Oglala Sioux Tribe |
$6,081,513.00 |
South Dakota State Checkbook |
| 2021 |
Education |
Sisseton School District 54-2 |
$6,064,220.74 |
South Dakota State Checkbook |
| 2019 |
Revenue |
City Of Deadwood |
$6,058,339.09 |
South Dakota State Checkbook |
| 2021 |
Transportation |
Jensen Construction Co |
$6,051,151.83 |
South Dakota State Checkbook |
| 2019 |
Tourism |
Lawrence & Schiller Inc |
$6,048,883.80 |
South Dakota State Checkbook |
| 2024 |
Education |
Dakota Valley School Dist 61-8 |
$6,046,850.28 |
South Dakota State Checkbook |
| 2023 |
Education |
Bennett County School Dist 3-1 |
$6,041,953.28 |
South Dakota State Checkbook |
| 2025 |
Revenue |
Internation Fuel Tax Assn Inc |
$6,040,160.51 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Vermillion |
$6,035,007.95 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Brandon |
$6,010,779.23 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Pci Roads Llc |
$5,995,741.15 |
South Dakota State Checkbook |
| 2021 |
Governor's Office |
Agropur Inc |
$5,972,720.00 |
South Dakota State Checkbook |
| 2020 |
Revenue |
Pennington County Treasurer |
$5,962,808.01 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Sharpe Enterprises Inc |
$5,959,784.34 |
South Dakota State Checkbook |
| 2025 |
Education |
White River School Dist 47-1 |
$5,958,816.08 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
Runge Enterprises Inc |
$5,955,855.90 |
South Dakota State Checkbook |