| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Health And Welfare, Department Of |
Magellan Healthcare Inc |
$785,499,731.44 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Blue Cross Of Idaho Care Plus, Inc. |
$345,813,409.32 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Blue Cross Of Idaho Care Plus, Inc. |
$322,530,660.96 |
Idaho State Checkbook |
| 2025 |
Boise State University |
Boise State University |
$316,711,226.41 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Blue Cross Of Idaho Care Plus, Inc. |
$284,699,158.48 |
Idaho State Checkbook |
| 2024 |
Boise State University |
Boise State University |
$282,546,463.14 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
United Behavioral Health (Monthly Cap) |
$252,321,462.70 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
St Luke's Regional Medical Center |
$235,439,282.34 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Molina Healthcare Of Utah, Inc. |
$214,677,962.83 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
United Behavioral Health (Monthly Cap) |
$202,802,432.70 |
Idaho State Checkbook |
| 2022 |
Administration, Department Of |
Idaho State Building Authority |
$194,628,007.00 |
Idaho State Checkbook |
| 2024 |
Health And Welfare, Department Of |
United Behavioral Health System Inc |
$193,599,784.50 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
St Luke's Regional Medical Center |
$190,973,989.14 |
Idaho State Checkbook |
| 2025 |
Idaho State University |
Idaho State University - Bursar |
$188,886,692.12 |
Idaho State Checkbook |
| 2025 |
Public Schools Support |
Redacted |
$181,607,474.26 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
United Behavioral Health (Monthly Cap) |
$174,978,622.82 |
Idaho State Checkbook |
| 2025 |
Health And Welfare, Department Of |
Department Health And Human Services |
$174,294,775.80 |
Idaho State Checkbook |
| 2024 |
Idaho State University |
Idaho State University - Bursar |
$170,212,671.03 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Molina Healthcare Of Utah, Inc. |
$169,474,094.69 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
St Luke's Regional Medical Center |
$168,100,170.55 |
Idaho State Checkbook |
| 2025 |
University Of Idaho |
University Of Idaho- Bursar |
$167,038,974.25 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Concrete Placing Company Inc |
$156,572,961.44 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Molina Healthcare Of Utah, Inc. |
$156,072,998.46 |
Idaho State Checkbook |
| 2024 |
University Of Idaho |
University Of Idaho- Bursar |
$152,227,429.70 |
Idaho State Checkbook |
| 2025 |
Health And Welfare, Department Of |
Mcna Insurance Company |
$150,403,909.88 |
Idaho State Checkbook |
| 2024 |
Health And Welfare, Department Of |
Department Health And Human Services |
$149,008,201.69 |
Idaho State Checkbook |
| 2024 |
Tax Commission, Idaho State |
Ada County Auditor |
$137,928,647.22 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
Zions Bancorporation National Associatio |
$130,984,145.65 |
Idaho State Checkbook |
| 2025 |
Public Schools Support |
Bonneville Joint School District 93 |
$126,478,919.79 |
Idaho State Checkbook |
| 2025 |
Persi (Public Employees Retirement System Of Idaho |
Redacted |
$122,410,547.83 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Local Highway Technical Assist Council |
$122,087,019.25 |
Idaho State Checkbook |
| 2024 |
Public Schools Support |
Bonneville Joint School District 93 |
$121,745,624.39 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Department Health & Human Services |
$121,699,390.10 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Office Of The State Treasurer |
$121,601,029.51 |
Idaho State Checkbook |
| 2021 |
Governor, Office Of The |
Dept Of Correction |
$119,072,005.50 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Knife River Corporation Mountain West |
$118,385,463.51 |
Idaho State Checkbook |
| 2021 |
Governor, Office Of The |
Superintendent Of Public Instruction |
$114,201,945.89 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Idaho Consumer Direct Personal Care Llc |
$109,768,053.28 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Idaho Consumer Direct Personal Care Llc |
$109,181,985.58 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Knife River Corporation Mountain West |
$107,477,977.00 |
Idaho State Checkbook |
| 2023 |
Education, State Department Of |
Bonneville Joint School District 93 |
$107,262,907.63 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
State Treasurers Office |
$103,907,224.82 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Saint Alphonsus Regional Medical Center |
$100,374,794.81 |
Idaho State Checkbook |
| 2025 |
Tax Commission, Idaho State |
Ada County Auditor |
$100,094,785.67 |
Idaho State Checkbook |
| 2021 |
Education, State Department Of |
Bonneville Jt Sch Dist No 093 |
$95,773,533.34 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Mcna Insurance Company |
$94,472,169.34 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Department Health & Human Services |
$94,418,584.00 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Concrete Placing Company Inc |
$94,274,146.82 |
Idaho State Checkbook |
| 2024 |
Public Schools Support |
Twin Falls Sd No 411 |
$94,240,564.16 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Ada County Highway District |
$92,434,877.90 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Department Health & Human Services |
$91,793,836.90 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Office Of The State Treasurer |
$90,682,430.41 |
Idaho State Checkbook |
| 2023 |
Financial Management, Division Of |
Idaho Housing And Finance Association |
$89,911,566.76 |
Idaho State Checkbook |
| 2025 |
Public Schools Support |
Twin Falls Sd No 411 |
$89,345,263.01 |
Idaho State Checkbook |
| 2022 |
Military Division |
Aci Federal |
$89,132,058.67 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Kootenai Health |
$88,975,671.88 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Idaho Consumer Direct Personal Care Llc |
$88,060,532.41 |
Idaho State Checkbook |
| 2022 |
Education, State Department Of |
Bonneville Jt Sch Dist No 093 |
$86,802,937.61 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Mcna Insurance Company |
$85,931,282.66 |
Idaho State Checkbook |
| 2023 |
Tax Commission, Idaho State |
State Treasurers Office |
$83,854,668.32 |
Idaho State Checkbook |
| 2023 |
Education, State Department Of |
Twin Falls Sd No 411 |
$82,331,194.04 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Saint Alphonsus Regional Medical Center |
$79,311,754.08 |
Idaho State Checkbook |
| 2024 |
Public Schools Support |
Joint School District 2 |
$79,147,923.47 |
Idaho State Checkbook |
| 2022 |
Education, State Department Of |
Twin Falls Sd No 411 |
$78,758,216.09 |
Idaho State Checkbook |
| 2021 |
Transportation, Department Of |
State Treasurers Office |
$78,009,835.68 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Mcna Insurance Company |
$78,008,490.55 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
Knife River Corporation Mountain West |
$77,886,987.40 |
Idaho State Checkbook |
| 2025 |
Health And Welfare, Department Of |
Medical Transportation Management Inc |
$75,094,754.06 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Local Highway Technical Assist Council |
$74,918,286.27 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Walgreen Co |
$74,569,926.73 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Ada County Highway District |
$74,463,942.45 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Western Construction Inc |
$74,110,445.57 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Wadsworth Brothers Construction Co Inc |
$74,093,523.07 |
Idaho State Checkbook |
| 2022 |
Tax Commission, Idaho State |
State Treasurers Office |
$73,802,155.71 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Eastern Idaho Health Services, Inc. |
$71,637,354.14 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Walgreen Co |
$71,472,213.49 |
Idaho State Checkbook |
| 2021 |
Education, State Department Of |
Twin Falls Sd No 411 |
$70,093,011.01 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Mountain View Hospital Llc |
$69,121,495.00 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Sundt Construction Inc |
$68,464,672.54 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Zions Bancorporation National Associatio |
$67,312,647.49 |
Idaho State Checkbook |
| 2022 |
Transportation, Department Of |
State Treasurers Office |
$67,233,059.71 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
Local Highway Technical Assist Council |
$66,396,692.01 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Sundt-Cannon A Joint Venture |
$66,394,786.88 |
Idaho State Checkbook |
| 2025 |
Public Schools Support |
Joint School District 2 |
$66,319,879.59 |
Idaho State Checkbook |
| 2023 |
Tax Commission, Idaho State |
Ada County Auditor |
$65,767,837.37 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Kootenai Health |
$65,292,052.89 |
Idaho State Checkbook |
| 2023 |
Education, State Department Of |
Joint School District 2 |
$64,937,558.65 |
Idaho State Checkbook |
| 2024 |
Health And Welfare, Department Of |
Mcna Insurance Company |
$63,496,948.84 |
Idaho State Checkbook |
| 2025 |
Transportation, Department Of |
Redacted |
$63,223,551.86 |
Idaho State Checkbook |
| 2022 |
Governor, Office Of The |
Dept Of Correction |
$63,102,504.71 |
Idaho State Checkbook |
| 2022 |
Transportation, Department Of |
Wells Fargo Bank |
$62,594,047.20 |
Idaho State Checkbook |
| 2023 |
Health And Welfare, Department Of |
Pocatello Hospital Llc |
$62,454,728.53 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Eastern Idaho Health Services, Inc. |
$61,814,632.65 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
Ada County Highway District |
$61,324,722.89 |
Idaho State Checkbook |
| 2021 |
Transportation, Department Of |
Wells Fargo Bank |
$60,966,779.18 |
Idaho State Checkbook |
| 2024 |
Transportation, Department Of |
Staker Parson |
$60,605,846.54 |
Idaho State Checkbook |
| 2021 |
Tax Commission, Idaho State |
State Treasurers Office |
$60,554,456.11 |
Idaho State Checkbook |
| 2021 |
Health And Welfare, Department Of |
Walgreen Co |
$59,908,216.03 |
Idaho State Checkbook |
| 2023 |
Transportation, Department Of |
Concrete Placing Company Inc |
$59,705,194.59 |
Idaho State Checkbook |
| 2022 |
Health And Welfare, Department Of |
Kootenai Health |
$59,240,158.27 |
Idaho State Checkbook |