Year	Employer	Vendor Name	Amount	Source
2025	Office Of Management And Enterprise Serv	Capitol Improvement Authority	$20,190,097.58	Oklahoma State Checkbook
2020	Murray State College	Protected Information	$20,100,021.94	Oklahoma State Checkbook
2016	Univ. Of Okla. Health Sciences Center	University Of Oklahoma Foundation Inc	$20,000,000.00	Oklahoma State Checkbook
2023	Osu-College Of Osteopathic Med.	Oklahoma State University	$19,938,224.80	Oklahoma State Checkbook
2016	Health Care Authority	Hp Enterprise Services	$19,924,845.02	Oklahoma State Checkbook
2022	Department Of Education	Santa Fe South Schools Inc	$19,864,775.47	Oklahoma State Checkbook
2020	Oklahoma State University	Manhattan Construction Co	$19,846,951.39	Oklahoma State Checkbook
2025	Regents For Higher Education	Oklahoma State University	$19,828,605.95	Oklahoma State Checkbook
2021	Department Of Education	Yukon Public Schools	$19,792,263.05	Oklahoma State Checkbook
2018	Rogers State University	Protected Information	$19,738,958.68	Oklahoma State Checkbook
2021	Department Of Tourism And Recreation	Manhattan Construction Company	$19,675,972.25	Oklahoma State Checkbook
2022	Department Of Transportation	Apac-Central Inc	$19,653,604.04	Oklahoma State Checkbook
2024	Capitol Improvement Authority	Oklahoma State Treasurer	$19,644,806.71	Oklahoma State Checkbook
2019	Osu-College Of Osteopathic Med.	Oklahoma State University	$19,630,633.71	Oklahoma State Checkbook
2020	University Of Oklahoma	Bank Of America	$19,557,644.97	Oklahoma State Checkbook
2023	University Of Oklahoma	Board Of Regents Of The Univ Of Ok Hsc	$19,557,522.36	Oklahoma State Checkbook
2017	Oklahoma Tax Commission	Mayes County	$19,538,395.00	Oklahoma State Checkbook
2018	Northwestern Okla. State University	Protected Information	$19,525,965.60	Oklahoma State Checkbook
2020	Rogers State University	Protected Information	$19,520,010.93	Oklahoma State Checkbook
2024	Office Of Management And Enterprise Serv	Capitol Improvement Authority	$19,502,781.57	Oklahoma State Checkbook
2017	Northwestern Okla. State University	Protected Information	$19,407,258.32	Oklahoma State Checkbook
2018	Langston University	Protected Information	$19,400,255.76	Oklahoma State Checkbook
2018	Capitol Improvement Authority	Je Dunn Construction Company	$19,262,692.51	Oklahoma State Checkbook
2025	Tulsa Community College	Protected Information	$19,258,065.46	Oklahoma State Checkbook
2019	University Of Oklahoma	Je Dunn Construction Company	$19,245,035.33	Oklahoma State Checkbook
2021	Capitol Improvement Authority	State Treasurer	$19,186,126.05	Oklahoma State Checkbook
2019	Corporation Commission	Protected Information	$19,050,621.44	Oklahoma State Checkbook
2017	Mental Health And Substance Abuse Serv.	Family & Childrens Services Inc	$18,984,824.72	Oklahoma State Checkbook
2022	S. W. Okla. St. Univ.	Protected Information	$18,930,846.38	Oklahoma State Checkbook
2020	Osu-College Of Osteopathic Med.	Oklahoma State University	$18,863,026.66	Oklahoma State Checkbook
2023	Oklahoma State University	Protected Information	$18,858,645.70	Oklahoma State Checkbook
2021	Employment Security Commission	Atos It Solutions And Services Inc	$18,855,164.85	Oklahoma State Checkbook
2021	Office Of Management And Enterprise Serv	Adobe Inc	$18,821,343.67	Oklahoma State Checkbook
2019	Murray State College	Protected Information	$18,806,585.83	Oklahoma State Checkbook
2022	Tulsa Community College	Protected Information	$18,791,359.27	Oklahoma State Checkbook
2022	Osu Medical Authority	Osu-Center For Health Sciences	$18,733,275.48	Oklahoma State Checkbook
2022	Department Of Corrections	Diamond Pharmacy Services	$18,567,403.00	Oklahoma State Checkbook
2021	Department Of Transportation	J & R Sand Company Inc	$18,417,008.86	Oklahoma State Checkbook
2020	Oklahoma State Department Of Health	Integris Baptist Medical Center Inc	$18,291,649.71	Oklahoma State Checkbook
2020	Office Of Management And Enterprise Serv	Shi International Corp	$18,248,723.79	Oklahoma State Checkbook
2022	Capitol Improvement Authority	Oklahoma State Treasurer	$18,233,153.41	Oklahoma State Checkbook
2021	Department Of Education	Teachers Retirement System	$18,213,532.64	Oklahoma State Checkbook
2021	East Central University	Protected Information	$18,182,474.18	Oklahoma State Checkbook
2022	Department Of Corrections	Geo Group Inc	$18,165,263.40	Oklahoma State Checkbook
2017	Rogers State University	Protected Information	$18,011,824.04	Oklahoma State Checkbook
2024	Tulsa Community College	Protected Information	$17,973,205.04	Oklahoma State Checkbook
2022	Capitol Improvement Authority	Lingo Construction Services Inc	$17,951,616.59	Oklahoma State Checkbook
2020	Mental Health And Substance Abuse Serv.	Family & Childrens Service Inc	$17,916,781.13	Oklahoma State Checkbook
2023	Oklahoma State Department Of Health	Department Of Education	$17,916,332.85	Oklahoma State Checkbook
2022	Department Of Transportation	C3 Construction Inc	$17,884,068.96	Oklahoma State Checkbook
2018	Health Care Authority	Dxc Technology Services Llc	$17,873,280.51	Oklahoma State Checkbook
2019	University Of Oklahoma	Refund Vendor	$17,863,315.71	Oklahoma State Checkbook
2022	Department Of Human Services	Liberty Of Oklahoma Corporation	$17,862,180.09	Oklahoma State Checkbook
2021	Department Of Corrections	Oklahoma Department Of Corrections	$17,810,200.82	Oklahoma State Checkbook
2022	Office Of Management And Enterprise Serv	Capitol Improvement Authority	$17,714,724.38	Oklahoma State Checkbook
2020	Department Of Transportation	Frontier Bridge Inc	$17,651,327.67	Oklahoma State Checkbook
2022	Osu Medical Authority	Oklahoma State University Medical Center	$17,598,258.00	Oklahoma State Checkbook
2020	University Of Oklahoma	Corix Utilities Oklahoma Inc	$17,580,394.88	Oklahoma State Checkbook
2022	Department Of Veterans Affairs	Flintco Llc	$17,548,778.87	Oklahoma State Checkbook
2022	Department Of Education	Bartlesville Public Schools	$17,547,632.22	Oklahoma State Checkbook
2019	Regents For Higher Education	Capitol Improvement Authority	$17,513,806.27	Oklahoma State Checkbook
2020	Department Of Transportation	Sewell Bros Inc	$17,509,171.57	Oklahoma State Checkbook
2020	Department Of Public Safety	Office Of Management & Enterprise Svcs	$17,430,376.24	Oklahoma State Checkbook
2021	Office Of Educ. Quality & Accountability	Kleo Inc	$17,350,000.00	Oklahoma State Checkbook
2018	Osu-College Of Osteopathic Med.	Oklahoma State University	$17,345,484.84	Oklahoma State Checkbook
2017	Capitol Improvement Authority	Manhattan Construction Company	$17,344,116.23	Oklahoma State Checkbook
2022	Department Of Education	Mid-Del Public Schools	$17,337,508.23	Oklahoma State Checkbook
2016	Univ. Of Central Okla.	University Of Central Oklahoma	$17,258,308.80	Oklahoma State Checkbook
2021	Department Of Education	Owasso Public Schools	$17,242,792.82	Oklahoma State Checkbook
2019	Mental Health And Substance Abuse Serv.	Family & Childrens Service Inc	$17,212,241.41	Oklahoma State Checkbook
2024	Univ. Of Okla. Health Sciences Center	Board Of Regents Of The Univ Of Ok Hsc	$17,162,563.66	Oklahoma State Checkbook
2018	Department Of Corrections	Diamond Pharmacy Services	$17,159,013.22	Oklahoma State Checkbook
2023	Tulsa Community College	Protected Information	$17,101,642.89	Oklahoma State Checkbook
2022	Department Of Corrections	Oklahoma Department Of Corrections	$17,059,223.37	Oklahoma State Checkbook
2020	Langston University	Protected Information	$17,030,000.38	Oklahoma State Checkbook
2019	Office Of Management And Enterprise Serv	Marsh Usa Inc	$16,955,568.38	Oklahoma State Checkbook
2021	Osu-College Of Osteopathic Med.	Oklahoma State University	$16,955,350.56	Oklahoma State Checkbook
2024	Capitol Improvement Authority	Department Of Public Safety	$16,932,240.07	Oklahoma State Checkbook
2022	Department Of Transportation	Ihc Scott Inc	$16,889,899.25	Oklahoma State Checkbook
2022	Univ. Hospitals Authority	Oklahoma Health Care Authority	$16,879,703.57	Oklahoma State Checkbook
2024	Regents For Higher Education	Oklahoma State University	$16,806,667.79	Oklahoma State Checkbook
2017	Office Of Management And Enterprise Serv	Hp Administrative Services Llc	$16,794,062.37	Oklahoma State Checkbook
2022	Department Of Education	Muskogee Public Schools	$16,781,351.36	Oklahoma State Checkbook
2018	Carl Albert State College	Protected Information	$16,675,564.70	Oklahoma State Checkbook
2021	Univ. Of Central Okla.	University Of Central Oklahoma	$16,608,938.40	Oklahoma State Checkbook
2019	Department Of Human Services	Liberty Of Oklahoma Corporation	$16,593,187.31	Oklahoma State Checkbook
2022	University Of Oklahoma	Bank Of America Na	$16,571,654.82	Oklahoma State Checkbook
2021	Department Of Commerce	Bancfirst	$16,560,758.58	Oklahoma State Checkbook
2024	Office Of Management And Enterprise Serv	Office Of Management & Enterprise Svcs	$16,545,766.15	Oklahoma State Checkbook
2016	S. E. Okla. St. Univ.	Protected Information	$16,514,983.94	Oklahoma State Checkbook
2019	Office Of Management And Enterprise Serv	Shi International Corp	$16,497,463.71	Oklahoma State Checkbook
2022	Department Of Transportation	Sewell Bros Inc	$16,451,945.59	Oklahoma State Checkbook
2022	Department Of Education	Sand Springs Public School	$16,441,921.06	Oklahoma State Checkbook
2016	Univ. Of Central Okla.	Protected Information	$16,437,541.87	Oklahoma State Checkbook
2021	Office Of Management And Enterprise Serv	Capitol Improvement Authority	$16,406,224.45	Oklahoma State Checkbook
2017	Carl Albert State College	Protected Information	$16,387,042.38	Oklahoma State Checkbook
2018	Corporation Commission	Protected Information	$16,333,005.09	Oklahoma State Checkbook
2022	Capitol Improvement Authority	Manhattan Construction Company	$16,330,111.33	Oklahoma State Checkbook
2017	Office Of Management And Enterprise Serv	Shi International Corp	$16,300,556.54	Oklahoma State Checkbook
2016	Capitol Improvement Authority	State Treasurer	$16,222,739.94	Oklahoma State Checkbook