| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2019 |
Bureau Of Administration |
Mclaughlin School Dist 15-2 |
$5,947,574.06 |
South Dakota State Checkbook |
| 2025 |
Education |
Lennox School District No 41-4 |
$5,933,904.95 |
South Dakota State Checkbook |
| 2025 |
Transportation |
City Of Watertown |
$5,933,632.69 |
South Dakota State Checkbook |
| 2024 |
Education |
Mclaughlin School Dist 15-2 |
$5,917,886.40 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Mitchell Technical Institute |
$5,900,960.78 |
South Dakota State Checkbook |
| 2017 |
Revenue |
Oglala Sioux Tribe |
$5,900,642.38 |
South Dakota State Checkbook |
| 2025 |
Game, Fish And Parks |
Mcgough Construction Co Llc |
$5,895,961.78 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Wagner Community School 11-4 |
$5,888,598.91 |
South Dakota State Checkbook |
| 2024 |
Education |
Madison Central School |
$5,880,390.47 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Dell Rapids School District |
$5,878,905.60 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
The Road Guy Construction Co |
$5,876,334.07 |
South Dakota State Checkbook |
| 2020 |
Education |
Vermillion School Dist 13-1 |
$5,875,436.78 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Administration |
Spearfish School District 40-2 |
$5,874,221.72 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Simon Contractors |
$5,857,358.17 |
South Dakota State Checkbook |
| 2019 |
Social Services |
Behavior Management Systems |
$5,851,728.80 |
South Dakota State Checkbook |
| 2023 |
Education |
Dakota Valley School Dist 61-8 |
$5,849,403.48 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Aberdeen-city Of |
$5,848,747.20 |
South Dakota State Checkbook |
| 2024 |
Public Safety |
City Of Deadwood |
$5,840,927.39 |
South Dakota State Checkbook |
| 2022 |
Transportation |
Diamond Surface Inc |
$5,837,431.34 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Tri-Valley School Dist No 49-6 |
$5,832,912.79 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Administration |
Wagner Community School 11-4 |
$5,819,532.58 |
South Dakota State Checkbook |
| 2024 |
Education |
Kadoka Area School Dist 35-2 |
$5,816,869.11 |
South Dakota State Checkbook |
| 2024 |
Revenue |
Rosebud Sioux Tribe |
$5,809,635.83 |
South Dakota State Checkbook |
| 2022 |
Transportation |
D&G Concrete Construction Inc |
$5,802,096.16 |
South Dakota State Checkbook |
| 2023 |
Agriculture & Nat. Resources |
City Of Brandon |
$5,801,607.34 |
South Dakota State Checkbook |
| 2016 |
Revenue |
Internation Fuel Tax Assocatn |
$5,786,185.43 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Administration |
Mitchell Technical Institute |
$5,780,458.59 |
South Dakota State Checkbook |
| 2021 |
Governor's Office |
Prevailing Wind Park Llc |
$5,766,013.50 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Brandon |
$5,764,327.71 |
South Dakota State Checkbook |
| 2024 |
Education |
Flandreau School Dist No 50-3 |
$5,756,002.31 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Jensen Rock & Sand Inc |
$5,746,316.37 |
South Dakota State Checkbook |
| 2024 |
Bureau Of Human Resources |
Metropolitan Life Ins |
$5,723,643.28 |
South Dakota State Checkbook |
| 2025 |
Education |
Andes Central School |
$5,716,395.78 |
South Dakota State Checkbook |
| 2021 |
Education |
Rapid City Area School Distrit |
$5,710,050.68 |
South Dakota State Checkbook |
| 2025 |
Corrections |
Cardinal Health Inc |
$5,704,450.55 |
South Dakota State Checkbook |
| 2025 |
Education |
Milbank School District 25-4 |
$5,704,183.06 |
South Dakota State Checkbook |
| 2025 |
Education |
Studies Weekly Inc |
$5,699,334.90 |
South Dakota State Checkbook |
| 2023 |
Public Safety |
Sioux Valley Southwestern Elec |
$5,681,553.65 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Bennett County School Dist 3-1 |
$5,678,684.75 |
South Dakota State Checkbook |
| 2020 |
Revenue |
Oglala Sioux Tribe |
$5,666,683.23 |
South Dakota State Checkbook |
| 2025 |
Education |
Black Hills Special Services |
$5,660,849.74 |
South Dakota State Checkbook |
| 2024 |
Social Services |
Behavior Management Systems |
$5,658,553.10 |
South Dakota State Checkbook |
| 2023 |
Education |
Lennox School District No 41-4 |
$5,657,221.10 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Simon Contractors Of Sd Inc |
$5,647,231.70 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Finance Management |
Bx Civil & Construction |
$5,645,018.51 |
South Dakota State Checkbook |
| 2016 |
Bureau Of Administration |
West Central School Dist 49-7 |
$5,642,071.25 |
South Dakota State Checkbook |
| 2025 |
Revenue |
Sturgis City Of |
$5,641,745.71 |
South Dakota State Checkbook |
| 2021 |
Education |
Dakota Valley School Dist 61-8 |
$5,635,806.57 |
South Dakota State Checkbook |
| 2024 |
Education |
Dupree School District 64-2 |
$5,633,302.85 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
City Of Sioux Falls |
$5,632,428.15 |
South Dakota State Checkbook |
| 2025 |
Agriculture & Nat. Resources |
Kingbrook Rural Water System |
$5,631,735.24 |
South Dakota State Checkbook |
| 2018 |
Revenue |
Oglala Sioux Tribe |
$5,629,777.17 |
South Dakota State Checkbook |
| 2022 |
Education |
Sisseton School District 54-2 |
$5,618,400.49 |
South Dakota State Checkbook |
| 2016 |
Corrections |
Intellectual Technology Inc |
$5,615,360.89 |
South Dakota State Checkbook |
| 2022 |
School & Public Lands |
Veit & Company Inc |
$5,608,145.45 |
South Dakota State Checkbook |
| 2022 |
Revenue |
Rosebud Sioux Tribe |
$5,605,482.16 |
South Dakota State Checkbook |
| 2019 |
Social Services |
Lewis & Clark Behvrl Hlth Svcs |
$5,593,299.41 |
South Dakota State Checkbook |
| 2025 |
Health |
Black Hills Special Services |
$5,587,149.72 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Soukup Construction Inc |
$5,568,166.44 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Northern States Power Company |
$5,564,834.06 |
South Dakota State Checkbook |
| 2022 |
Revenue |
City Of Vermillion |
$5,563,872.62 |
South Dakota State Checkbook |
| 2025 |
Education |
Winner School District 59-2 |
$5,557,989.09 |
South Dakota State Checkbook |
| 2022 |
Transportation |
Simon Contractors Of Sd Inc |
$5,555,666.35 |
South Dakota State Checkbook |
| 2018 |
Bureau Of Finance Management |
Rapid City-City Of |
$5,542,558.70 |
South Dakota State Checkbook |
| 2021 |
Bureau Of Finance & Management |
City Of Watertown |
$5,538,852.68 |
South Dakota State Checkbook |
| 2023 |
Revenue |
City Of Brandon |
$5,538,343.56 |
South Dakota State Checkbook |
| 2022 |
Transportation |
City Of Sioux Falls |
$5,528,493.12 |
South Dakota State Checkbook |
| 2023 |
Game, Fish And Parks |
Brandt Information Services |
$5,524,847.87 |
South Dakota State Checkbook |
| 2022 |
Tourism |
Lawrence & Schiller Inc |
$5,503,787.44 |
South Dakota State Checkbook |
| 2023 |
Public Safety |
Sanford Clinic |
$5,491,879.28 |
South Dakota State Checkbook |
| 2025 |
Revenue |
City Of Box Elder |
$5,490,860.98 |
South Dakota State Checkbook |
| 2025 |
Education |
Dakota Valley School Dist 61-8 |
$5,487,847.43 |
South Dakota State Checkbook |
| 2024 |
Corrections |
Cardinal Health Inc |
$5,485,611.36 |
South Dakota State Checkbook |
| 2019 |
Revenue |
City Of Madison |
$5,483,453.03 |
South Dakota State Checkbook |
| 2024 |
Agriculture & Nat. Resources |
South Lincoln Rural Water |
$5,482,949.25 |
South Dakota State Checkbook |
| 2023 |
Education |
Black Hills Special Services |
$5,482,751.57 |
South Dakota State Checkbook |
| 2022 |
Transportation |
Hdr Engineering Inc |
$5,476,287.80 |
South Dakota State Checkbook |
| 2022 |
Education |
Dakota Valley School Dist 61-8 |
$5,467,860.93 |
South Dakota State Checkbook |
| 2025 |
Transportation |
Monroe Truck Equipment Inc |
$5,460,074.42 |
South Dakota State Checkbook |
| 2023 |
Revenue |
City Of Vermillion |
$5,458,142.78 |
South Dakota State Checkbook |
| 2024 |
Education |
Winner School District 59-2 |
$5,457,263.00 |
South Dakota State Checkbook |
| 2022 |
Revenue |
Sturgis City Of |
$5,447,914.19 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Rosebud Sioux Tribe |
$5,445,188.24 |
South Dakota State Checkbook |
| 2020 |
Corrections |
Elior Inc |
$5,441,161.56 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Prahm Construction Inc |
$5,430,076.43 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Administration |
Flandreau School Dist No 50-3 |
$5,424,985.66 |
South Dakota State Checkbook |
| 2020 |
Education |
Sisseton School District 54-2 |
$5,424,824.42 |
South Dakota State Checkbook |
| 2020 |
Education |
Wagner Community School 11-4 |
$5,424,576.99 |
South Dakota State Checkbook |
| 2023 |
Social Services |
Human Service Agency |
$5,417,893.50 |
South Dakota State Checkbook |
| 2024 |
Transportation |
Webster Scale Inc |
$5,411,946.35 |
South Dakota State Checkbook |
| 2024 |
Revenue |
City Of Madison |
$5,407,852.45 |
South Dakota State Checkbook |
| 2019 |
Health |
Cardinal Health Inc |
$5,407,501.06 |
South Dakota State Checkbook |
| 2023 |
Bureau Of Human Resources |
Metropolitan Life Ins |
$5,398,209.42 |
South Dakota State Checkbook |
| 2025 |
Education |
Madison Central School |
$5,397,902.53 |
South Dakota State Checkbook |
| 2019 |
Bureau Of Finance Management |
Monroe Truck Equipment Inc |
$5,385,237.92 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Sturgis City Of |
$5,369,582.93 |
South Dakota State Checkbook |
| 2017 |
Bureau Of Finance Management |
Yankton County Auditor |
$5,359,986.33 |
South Dakota State Checkbook |
| 2025 |
Bureau Of Administration |
Automotive Rentals Inc |
$5,357,579.06 |
South Dakota State Checkbook |
| 2025 |
Public Safety |
Minnehaha County Auditor |
$5,356,426.27 |
South Dakota State Checkbook |
| 2023 |
Revenue |
Brookings County Treasurer |
$5,354,009.55 |
South Dakota State Checkbook |