Year	Employer	Vendor Name	Amount	Source
2022	East Central University	Protected Information	$13,034,474.43	Oklahoma State Checkbook
2020	Department Of Transportation	C-P Integrated Services Inc	$12,985,007.62	Oklahoma State Checkbook
2022	Health Care Authority	Orion Health Inc	$12,979,050.17	Oklahoma State Checkbook
2022	Department Of Education	Deer Creek Public Schools	$12,951,976.22	Oklahoma State Checkbook
2017	Seminole State College	Protected Information	$12,893,904.08	Oklahoma State Checkbook
2020	Department Of Veterans Affairs	Galt Foundation	$12,822,326.11	Oklahoma State Checkbook
2022	Department Of Education	Altus Public Schools	$12,798,918.41	Oklahoma State Checkbook
2017	Univ.of Science & Arts Of Ok	Protected Information	$12,797,996.62	Oklahoma State Checkbook
2021	Department Of Transportation	Bridgeco Contractors Inc	$12,783,205.84	Oklahoma State Checkbook
2019	Department Of Transportation	Office Of Management & Enterprise Svcs	$12,761,358.86	Oklahoma State Checkbook
2020	Department Of Corrections	Lindsay Municipal Hospital	$12,707,892.74	Oklahoma State Checkbook
2021	Department Of Emergency Management	Tri-County Electric Cooperative Inc	$12,705,695.63	Oklahoma State Checkbook
2022	Northern Oklahoma College	Protected Information	$12,699,843.51	Oklahoma State Checkbook
2020	Regents For Higher Education	University Of Central Oklahoma	$12,694,768.23	Oklahoma State Checkbook
2022	Mental Health And Substance Abuse Serv.	Grand Lake Mental Health Center Inc	$12,621,795.17	Oklahoma State Checkbook
2018	Mental Health And Substance Abuse Serv.	Family & Childrens Services Inc	$12,607,549.02	Oklahoma State Checkbook
2020	Univ. Of Central Okla.	University Of Central Oklahoma	$12,599,968.42	Oklahoma State Checkbook
2020	Mental Health And Substance Abuse Serv.	Grand Lake Mental Health Center Inc	$12,563,171.95	Oklahoma State Checkbook
2021	Department Of Education	Sand Springs Public School	$12,537,137.71	Oklahoma State Checkbook
2022	Department Of Transportation	Bridgeco Contractors Inc	$12,523,765.91	Oklahoma State Checkbook
2025	University Of Oklahoma	Board Of Regents Of The Univ Of Ok Hsc	$12,498,989.65	Oklahoma State Checkbook
2022	Employment Security Commission	Atos It Solutions And Services Inc	$12,484,347.67	Oklahoma State Checkbook
2018	Oklahoma State Department Of Health	Univ Of Oklahoma Health Sciences Center	$12,480,298.43	Oklahoma State Checkbook
2018	Department Of Public Safety	Office Of Management & Enterprise Svcs	$12,475,894.14	Oklahoma State Checkbook
2020	Department Of Transportation	Office Of Management & Enterprise Svcs	$12,459,270.75	Oklahoma State Checkbook
2021	Rogers State University	Protected Information	$12,442,808.05	Oklahoma State Checkbook
2020	Oklahoma State University	Bank Of Oklahoma, Na	$12,410,670.52	Oklahoma State Checkbook
2018	Oklahoma State Department Of Health	Office Of Management & Enterprise Svcs	$12,408,852.07	Oklahoma State Checkbook
2020	Oklahoma State Department Of Health	Univ Of Oklahoma Health Sciences Center	$12,407,241.37	Oklahoma State Checkbook
2018	Department Of Transportation	Bnsf Railway Company	$12,407,113.85	Oklahoma State Checkbook
2020	Oklahoma Tax Commission	Tulsa County	$12,353,758.38	Oklahoma State Checkbook
2018	Northern Oklahoma College	Flintco Llc	$12,334,134.73	Oklahoma State Checkbook
2018	Department Of Human Services	Liberty Of Oklahoma Corporation	$12,314,919.04	Oklahoma State Checkbook
2024	Regents For Higher Education	University Of Central Oklahoma	$12,298,593.49	Oklahoma State Checkbook
2020	Tobacco Settlement Endmt Trust	Vi Marketing And Branding	$12,289,801.42	Oklahoma State Checkbook
2020	Department Of Transportation	Haskell Lemon Construction Co	$12,286,810.97	Oklahoma State Checkbook
2019	University Of Oklahoma	Protected Information	$12,275,232.45	Oklahoma State Checkbook
2020	Northwestern Okla. State University	Protected Information	$12,245,232.81	Oklahoma State Checkbook
2017	Department Of Transportation	Office Of Management & Enterprise Svcs	$12,238,329.98	Oklahoma State Checkbook
2022	Corporation Commission	Protected Information	$12,224,017.07	Oklahoma State Checkbook
2018	Health Care Authority	Enterprise Services Llc	$12,223,652.01	Oklahoma State Checkbook
2022	Department Of Transportation	Bank Of America Na	$12,169,085.42	Oklahoma State Checkbook
2021	Office Of Management And Enterprise Serv	Communities Foundation Of Oklahoma Inc	$12,139,055.00	Oklahoma State Checkbook
2022	Office Of Management And Enterprise Serv	Oklahoma Employment Security Commission	$12,098,097.88	Oklahoma State Checkbook
2021	Department Of Education	Choctaw-Nicoma Park Public Schools	$12,085,610.29	Oklahoma State Checkbook
2020	Department Of Education	Community Action Project Of Tulsa County	$12,078,916.92	Oklahoma State Checkbook
2022	Department Of Education	Piedmont Public School	$12,072,010.54	Oklahoma State Checkbook
2020	Oklahoma State Department Of Health	Office Of Management & Enterprise Svcs	$12,063,565.33	Oklahoma State Checkbook
2025	Department Of Education	Teachers Retirement System Of Oklahoma	$12,055,605.46	Oklahoma State Checkbook
2025	Department Of Human Services	University Of Oklahoma	$11,996,634.85	Oklahoma State Checkbook
2021	Univ. Hospitals Authority	Ou Medicine Inc	$11,977,850.56	Oklahoma State Checkbook
2017	Department Of Human Services	Liberty Of Oklahoma Corporation	$11,956,723.83	Oklahoma State Checkbook
2019	University Of Oklahoma	Univ Of Oklahoma Health Sciences Center	$11,928,000.10	Oklahoma State Checkbook
2017	Regents For Higher Education	University Of Central Oklahoma	$11,885,269.25	Oklahoma State Checkbook
2021	Regents For Higher Education	Capitol Improvement Authority	$11,875,016.18	Oklahoma State Checkbook
2018	Department Of Transportation	The Cummins Construction Company Inc	$11,868,094.06	Oklahoma State Checkbook
2021	Department Of Education	Tahlequah Public Schools I035	$11,851,954.59	Oklahoma State Checkbook
2021	Oklahoma State Department Of Health	Office Of Management & Enterprise Svcs	$11,808,122.25	Oklahoma State Checkbook
2018	N. E. Okla. A & M College	Protected Information	$11,787,420.01	Oklahoma State Checkbook
2020	Department Of Transportation	Silver Star Construction Co Inc	$11,781,059.84	Oklahoma State Checkbook
2023	Oklahoma State Checkbook	Oklahoma State Regents For Higher Ed	$11,731,809.80	Oklahoma State Checkbook
2021	Ouhsc Prof. Prac. Plan.	Protected Information	$11,720,545.04	Oklahoma State Checkbook
2019	Department Of Transportation	The Cummins Construction Company Inc	$11,712,943.92	Oklahoma State Checkbook
2020	Oklahoma Lottery Commission	Scientific Games International Inc	$11,701,207.00	Oklahoma State Checkbook
2020	University Of Oklahoma	First Fidelity Bank	$11,698,850.81	Oklahoma State Checkbook
2023	Oklahoma State Checkbook	Tulsa Community College	$11,681,122.26	Oklahoma State Checkbook
2017	Osu-college Of Osteopathic Med.	Flintco Llc	$11,665,078.40	Oklahoma State Checkbook
2025	Department Of Rehabilitation Services	University Of Oklahoma	$11,647,982.76	Oklahoma State Checkbook
2022	Langston University	Protected Information	$11,611,131.15	Oklahoma State Checkbook
2024	Oklahoma State Department Of Health	Department Of Education	$11,567,312.99	Oklahoma State Checkbook
2019	Department Of Veterans Affairs	Galt Foundation	$11,548,961.06	Oklahoma State Checkbook
2019	Oklahoma Lottery Commission	Scientific Games International Inc	$11,513,557.00	Oklahoma State Checkbook
2018	Department Of Transportation	K & R Builders Inc	$11,510,625.76	Oklahoma State Checkbook
2022	Department Of Education	El Reno Public Schools	$11,506,871.66	Oklahoma State Checkbook
2017	Osu Medical Authority	Okla State Univ Med Ctr Trust	$11,500,000.00	Oklahoma State Checkbook
2021	Oklahoma State Department Of Health	Oklahoma State University	$11,492,954.96	Oklahoma State Checkbook
2025	Osu Medical Authority	Oklahoma State University	$11,480,719.89	Oklahoma State Checkbook
2022	Department Of Education	Mcalester Public Schools	$11,457,939.93	Oklahoma State Checkbook
2021	Department Of Education	Stillwater Public Schools	$11,445,001.21	Oklahoma State Checkbook
2021	Department Of Education	County Of Pottowatomie Aba Sps Dist I-93	$11,441,728.36	Oklahoma State Checkbook
2019	Seminole State College	Protected Information	$11,390,649.60	Oklahoma State Checkbook
2019	Univ. Hospitals Authority	Univ Of Oklahoma Health Sciences Center	$11,362,965.55	Oklahoma State Checkbook
2023	Oklahoma State Checkbook	Northeastern State University	$11,359,999.58	Oklahoma State Checkbook
2022	Rogers State University	Protected Information	$11,352,159.94	Oklahoma State Checkbook
2021	Office Of Management And Enterprise Serv	Marsh Usa Inc	$11,334,045.26	Oklahoma State Checkbook
2021	Oklahoma State Department Of Health	State Treasurer	$11,319,019.66	Oklahoma State Checkbook
2021	Oklahoma Tax Commission	State Treasurer	$11,314,560.66	Oklahoma State Checkbook
2017	Comm. Of The Land Office	Commissioners Of The Land Office	$11,306,437.08	Oklahoma State Checkbook
2024	Department Of Education	Oklahoma State Department Of Health	$11,299,227.32	Oklahoma State Checkbook
2021	Mental Health And Substance Abuse Serv.	Family & Childrens Service Inc	$11,293,168.99	Oklahoma State Checkbook
2022	Employment Security Commission	Ernst & Young Us Llp	$11,278,802.00	Oklahoma State Checkbook
2018	Oklahoma Tax Commission	Tulsa County	$11,269,416.00	Oklahoma State Checkbook
2017	Department Of Transportation	Cec Corp	$11,265,760.81	Oklahoma State Checkbook
2023	Oklahoma State Checkbook	University Of Central Oklahoma	$11,251,668.73	Oklahoma State Checkbook
2018	Regents For Higher Education	University Of Oklahoma	$11,241,541.94	Oklahoma State Checkbook
2019	Health Care Authority	Oklahoma State Department Of Health	$11,197,099.41	Oklahoma State Checkbook
2025	Health Care Workforce Trng Com	Southwestern Oklahoma State University	$11,156,533.84	Oklahoma State Checkbook
2020	Regents For Higher Education	University Of Oklahoma	$11,137,635.40	Oklahoma State Checkbook
2020	Oklahoma State University	Ok State Regents For Higher Education	$11,118,373.57	Oklahoma State Checkbook
2019	Department Of Corrections	Office Of Management & Enterprise Svcs	$11,102,291.73	Oklahoma State Checkbook