Year	Employer	Vendor Name	Amount	Source
2024	S. E. Okla. St. Univ.	Protected Information	$37,956,529.89	Oklahoma State Checkbook
2020	Department Of Corrections	Protected Information	$37,668,804.99	Oklahoma State Checkbook
2020	Department Of Transportation	Overland Corporation	$37,560,800.11	Oklahoma State Checkbook
2022	Department Of Transportation	Haskell Lemon Construction Co	$37,462,233.53	Oklahoma State Checkbook
2021	Department Of Education	Union Public Schools	$37,454,767.17	Oklahoma State Checkbook
2020	Oklahoma Tax Commission	Mayes County	$37,429,581.15	Oklahoma State Checkbook
2024	Oklahoma Lottery Commission	Oklahoma Lottery Commission	$37,286,746.78	Oklahoma State Checkbook
2021	University Of Oklahoma	Health Care Service Corporation	$36,331,500.68	Oklahoma State Checkbook
2022	Department Of Human Services	University Of Oklahoma	$36,284,156.07	Oklahoma State Checkbook
2017	Department Of Corrections	Protected Information	$35,836,926.76	Oklahoma State Checkbook
2017	Department Of Corrections	Geo Group	$35,566,216.79	Oklahoma State Checkbook
2021	Department Of Education	Norman Public Schools	$35,565,566.37	Oklahoma State Checkbook
2022	Department Of Education	Mustang Public Schools	$35,541,310.26	Oklahoma State Checkbook
2020	Department Of Transportation	Duit Construction Company Inc	$34,999,758.84	Oklahoma State Checkbook
2020	University Of Oklahoma	Teachers Retirement System	$34,953,807.26	Oklahoma State Checkbook
2022	Department Of Corrections	Corecivic Inc	$34,867,865.51	Oklahoma State Checkbook
2017	University Of Oklahoma	Je Dunn Const	$34,660,125.10	Oklahoma State Checkbook
2020	Department Of Transportation	The Cummins Construction Company Inc	$34,557,986.70	Oklahoma State Checkbook
2021	Department Of Education	Mid-Del Public Schools	$34,428,311.76	Oklahoma State Checkbook
2019	University Of Oklahoma	Teachers Retirement System	$34,417,222.29	Oklahoma State Checkbook
2017	Health Care Authority	Hp Administrative Services Llc	$34,416,433.88	Oklahoma State Checkbook
2020	Oklahoma State Department Of Health	Oklahoma State Department Of Health	$34,351,848.76	Oklahoma State Checkbook
2019	University Of Oklahoma	Fidelity Investments Inst Ops Co	$34,235,821.94	Oklahoma State Checkbook
2021	Department Of Education	Edmond Public Schools	$34,026,325.59	Oklahoma State Checkbook
2018	Oklahoma Lottery Commission	Oklahoma Lottery Commission	$33,928,055.60	Oklahoma State Checkbook
2020	Department Of Education	Teachers Retirement System	$33,893,435.35	Oklahoma State Checkbook
2021	Department Of Transportation	Overland Corporation	$33,853,715.70	Oklahoma State Checkbook
2022	Office Of Management And Enterprise Serv	Marsh Usa Inc	$33,837,544.93	Oklahoma State Checkbook
2018	Tulsa Community College	Protected Information	$33,770,122.43	Oklahoma State Checkbook
2019	Department Of Human Services	University Of Oklahoma	$33,682,581.67	Oklahoma State Checkbook
2021	University Of Oklahoma	University Of Oklahoma	$33,550,774.57	Oklahoma State Checkbook
2019	Oklahoma Tax Commission	Mayes County	$32,782,408.00	Oklahoma State Checkbook
2022	Office Of Management And Enterprise Serv	Restore Hope Ministries Inc	$32,563,503.37	Oklahoma State Checkbook
2022	S. E. Okla. St. Univ.	Protected Information	$32,543,765.30	Oklahoma State Checkbook
2018	Oklahoma State University	Manhattan Construction Co	$32,497,144.37	Oklahoma State Checkbook
2020	State Treasurer	Unclaimed Property	$32,449,995.16	Oklahoma State Checkbook
2019	Northern Oklahoma College	Protected Information	$32,401,394.44	Oklahoma State Checkbook
2017	Northern Oklahoma College	Protected Information	$32,359,885.61	Oklahoma State Checkbook
2018	Department Of Corrections	Geo Group	$32,208,751.46	Oklahoma State Checkbook
2021	Univ. Hospitals Authority	Board Of Regents Of The Univ Of Ok Hsc	$32,201,351.28	Oklahoma State Checkbook
2018	Northern Oklahoma College	Protected Information	$32,175,890.32	Oklahoma State Checkbook
2020	Univ. Hospitals Authority	Oklahoma Health Care Authority	$31,950,452.82	Oklahoma State Checkbook
2023	Oklahoma State Checkbook	Department Of Transportation	$31,935,819.78	Oklahoma State Checkbook
2022	Department Of Transportation	Manhattan Road & Bridge Company	$31,898,090.44	Oklahoma State Checkbook
2017	Department Of Education	Teachers Retirement System	$31,704,042.58	Oklahoma State Checkbook
2022	Department Of Corrections	Protected Information	$31,674,066.33	Oklahoma State Checkbook
2020	Tulsa Community College	Protected Information	$31,404,507.57	Oklahoma State Checkbook
2019	Univ. Hospitals Authority	Oklahoma Health Care Authority	$31,181,765.00	Oklahoma State Checkbook
2021	Oklahoma Lottery Commission	Oklahoma Lottery Commission	$31,147,919.06	Oklahoma State Checkbook
2022	Health Care Authority	Computer Sciences Corporation	$31,077,570.66	Oklahoma State Checkbook
2020	Department Of Human Services	University Of Oklahoma	$31,049,562.30	Oklahoma State Checkbook
2019	University Of Oklahoma	Bank Of America	$30,892,162.80	Oklahoma State Checkbook
2021	Department Of Transportation	Manhattan Road & Bridge Company	$30,875,527.05	Oklahoma State Checkbook
2021	Office Of Management And Enterprise Serv	Workday Inc	$30,549,294.75	Oklahoma State Checkbook
2022	Department Of Education	Jenks Public Schools Isd #5	$30,387,003.01	Oklahoma State Checkbook
2018	Department Of Human Services	University Of Oklahoma	$30,346,352.08	Oklahoma State Checkbook
2020	Department Of Corrections	Geo Group	$30,324,680.37	Oklahoma State Checkbook
2020	Northern Oklahoma College	Protected Information	$30,303,604.05	Oklahoma State Checkbook
2019	Department Of Corrections	Oklahoma Department Of Corrections	$30,042,284.44	Oklahoma State Checkbook
2018	Oklahoma Tax Commission	Mayes County	$29,968,003.00	Oklahoma State Checkbook
2021	Department Of Transportation	Allen Contracting Inc	$29,939,080.86	Oklahoma State Checkbook
2021	Northeastern State University	Protected Information	$29,936,874.93	Oklahoma State Checkbook
2019	Department Of Education	Teachers Retirement System	$29,763,104.67	Oklahoma State Checkbook
2020	Ouhsc Prof. Prac. Plan.	Protected Information	$29,741,398.70	Oklahoma State Checkbook
2021	Osu Medical Authority	Oklahoma State University	$29,677,141.00	Oklahoma State Checkbook
2021	Department Of Corrections	Corecivic Inc	$29,675,059.45	Oklahoma State Checkbook
2018	Department Of Corrections	Corecivic Inc	$29,536,464.46	Oklahoma State Checkbook
2022	Northeastern State University	Protected Information	$29,445,730.75	Oklahoma State Checkbook
2022	Oklahoma Lottery Commission	Oklahoma Lottery Commission	$29,265,470.24	Oklahoma State Checkbook
2020	Osu Medical Authority	Oklahoma State University	$28,927,183.86	Oklahoma State Checkbook
2020	Department Of Transportation	Becco Contractors Inc	$28,848,803.40	Oklahoma State Checkbook
2017	Department Of Human Services	University Of Oklahoma	$28,825,372.24	Oklahoma State Checkbook
2020	Water Resources Board	Protected Information	$28,692,039.54	Oklahoma State Checkbook
2020	Rose State Colege	Protected Information	$28,647,214.20	Oklahoma State Checkbook
2018	Rose State Colege	Protected Information	$28,250,769.20	Oklahoma State Checkbook
2020	University Of Oklahoma	Lockheed Martin Corporation	$28,179,695.72	Oklahoma State Checkbook
2017	Oklahoma Lottery Commission	Oklahoma Lottery Commission	$27,949,048.88	Oklahoma State Checkbook
2020	Department Of Corrections	Oklahoma Department Of Corrections	$27,927,239.68	Oklahoma State Checkbook
2017	Department Of Corrections	Oklahoma Department Of Corrections	$27,903,719.28	Oklahoma State Checkbook
2022	Health Care Authority	Gainwell Acquisition Corp	$27,835,610.66	Oklahoma State Checkbook
2018	Capitol Improvement Authority	Manhattan Construction Company	$27,784,186.86	Oklahoma State Checkbook
2022	Department Of Education	Midwest City - Del City Isd No 52	$27,727,568.01	Oklahoma State Checkbook
2019	Tulsa Community College	Protected Information	$27,583,272.43	Oklahoma State Checkbook
2020	S. W. Okla. St. Univ.	Protected Information	$27,570,900.92	Oklahoma State Checkbook
2022	Department Of Education	Enid Public Schools	$27,501,168.53	Oklahoma State Checkbook
2021	Department Of Corrections	Geo Group Inc	$27,215,207.12	Oklahoma State Checkbook
2022	Department Of Transportation	Frontier Bridge Inc	$27,187,571.04	Oklahoma State Checkbook
2022	Univ. Hospitals Authority	Board Of Regents Of The Univ Of Ok Hsc	$27,081,216.28	Oklahoma State Checkbook
2021	Department Of Transportation	Becco Contractors Inc	$27,024,609.95	Oklahoma State Checkbook
2021	Health Care Authority	Computer Sciences Corporation	$26,965,375.65	Oklahoma State Checkbook
2019	East Central University	Protected Information	$26,934,463.68	Oklahoma State Checkbook
2024	University Of Oklahoma	Board Of Regents Of The Univ Of Ok Hsc	$26,859,606.82	Oklahoma State Checkbook
2024	Regents For Higher Education	Capitol Improvement Authority	$26,809,570.53	Oklahoma State Checkbook
2021	Okla. City Community College	Protected Information	$26,780,096.83	Oklahoma State Checkbook
2024	Okla. City Community College	Protected Information	$26,767,617.19	Oklahoma State Checkbook
2022	Okla. City Community College	Protected Information	$26,732,463.73	Oklahoma State Checkbook
2021	State Treasurer	Unclaimed Property	$26,267,983.40	Oklahoma State Checkbook
2021	Department Of Transportation	Haskell Lemon Construction Co	$26,169,927.26	Oklahoma State Checkbook
2021	Department Of Education	Mustang Public Schools	$26,132,932.51	Oklahoma State Checkbook
2018	Oklahoma State University	Flintco Llc	$26,056,946.30	Oklahoma State Checkbook