| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2023 |
State Dept Of Education |
City Of Norwich |
$64,396,315.24 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
New Flyer Of America Inc |
$64,292,420.20 |
Connecticut State Checkbook |
| 2017 |
University Of Connecticut |
Fsd University Llc |
$64,273,046.45 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
O & G Industries Inc |
$64,113,620.28 |
Connecticut State Checkbook |
| 2022 |
Teachers' Retirement Board |
Express Scripts Inc |
$63,991,304.66 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
National Railroad Passenger Corp |
$63,929,361.30 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Manchester |
$63,901,987.53 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
National Railroad Passenger Corp |
$63,352,617.94 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
West Haven Town Treasurer |
$63,237,153.27 |
Connecticut State Checkbook |
| 2021 |
Csu - Southern |
Southern Connecticut State University |
$63,195,084.00 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Town Of Manchester |
$62,774,593.01 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Sunset Shores Of Milford Inc |
$62,758,752.69 |
Connecticut State Checkbook |
| 2018 |
University Of Connecticut |
Turner Construction Co |
$62,681,691.25 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Social Services |
Deloitte Consulting Llp |
$62,453,966.41 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
City Of Bristol |
$62,356,709.34 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
City Of Norwich |
$62,322,357.42 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Public Health |
Dept Of Public Health |
$62,237,733.17 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
City Of Bridgeport |
$62,210,765.76 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
City Of Norwich |
$62,207,813.60 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
O & G Industries Inc |
$61,990,205.05 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Torrington Town Treasurer |
$61,805,997.02 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Public Health |
Dept Of Public Health |
$61,471,363.99 |
Connecticut State Checkbook |
| 2019 |
Csu - Southern |
Southern Connecticut State University |
$61,000,000.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Dept Of Administrative Services |
$60,920,551.40 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Cianbro/Middlesex Xv A Joint Venture |
$60,683,027.86 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of New London |
$60,619,885.69 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Manafort Brothers Inc |
$60,328,973.64 |
Connecticut State Checkbook |
| 2022 |
Dept Of Energy & Environ Prot. |
Metropolitan District |
$60,111,861.94 |
Connecticut State Checkbook |
| 2024 |
Dept Of Energy & Environ Prot. |
Metropolitan District |
$60,080,105.60 |
Connecticut State Checkbook |
| 2023 |
Csu - Southern |
Southern Connecticut State University |
$60,000,000.00 |
Connecticut State Checkbook |
| 2023 |
Dept Of Emrg Svc & Public Prot |
Hartford Hospital |
$59,646,669.89 |
Connecticut State Checkbook |
| 2018 |
Board Of Regents |
Southern Connecticut State University |
$59,415,870.87 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
Waterbury Town Treasurer |
$58,916,880.82 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Waters Constr Co Inc |
$58,908,618.31 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
City Of Bristol |
$58,786,365.77 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
West Haven Town Treasurer |
$58,727,041.25 |
Connecticut State Checkbook |
| 2016 |
Department Of Transportation |
Walsh Construction Co - Pcl Joint Venture Ii |
$58,677,641.91 |
Connecticut State Checkbook |
| 2018 |
Uconn Health Center |
Capital Area Health Consortium |
$58,646,255.45 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
West Haven Town Treasurer |
$58,585,675.80 |
Connecticut State Checkbook |
| 2020 |
Ct Port Authority |
Connecticut Port Authority |
$58,440,615.00 |
Connecticut State Checkbook |
| 2016 |
Department Of Social Services |
Deloitte Consulting Llp |
$58,396,778.43 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of New London |
$58,320,422.49 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
I-84 Constructors Jv |
$58,269,000.27 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
City Of Bristol |
$58,098,941.62 |
Connecticut State Checkbook |
| 2016 |
Office Of Policy & Management |
City Of New Haven |
$57,605,874.46 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
City Of Bristol |
$57,547,423.78 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
O&G/Bhd Jv |
$57,395,654.39 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of New London |
$57,069,956.28 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Cianbro/Middlesex Xv A Joint Venture |
$57,062,277.90 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Rotha Contracting Company Inc |
$57,053,477.32 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
City Of Danbury |
$56,703,085.75 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
City Of Bristol |
$56,678,873.97 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
West Haven Town Treasurer |
$56,548,645.19 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Tilcon Connecticut Inc |
$56,440,617.04 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
City Of Bristol |
$56,376,336.20 |
Connecticut State Checkbook |
| 2016 |
Department Of Transportation |
O&G Industries/Tutor Perini Corp Jv |
$56,311,485.23 |
Connecticut State Checkbook |
| 2025 |
Office Of Policy & Management |
City Of Bridgeport |
$56,100,417.85 |
Connecticut State Checkbook |
| 2019 |
Econ. & Community Development |
Electric Boat/General Dynamics |
$55,618,615.00 |
Connecticut State Checkbook |
| 2021 |
Dept Of Energy & Environ Prot. |
Metropolitan District |
$55,292,390.50 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Norwalk Town Treasurer |
$55,096,707.93 |
Connecticut State Checkbook |
| 2017 |
Uconn Health Center |
Capital Area Health Consortium |
$55,078,317.19 |
Connecticut State Checkbook |
| 2016 |
Uconn Health Center |
Capital Area Health Consortium |
$55,070,665.09 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Hamden |
$55,018,392.12 |
Connecticut State Checkbook |
| 2023 |
Dept Of Emrg Svc & Public Prot |
Dept Of Corrections |
$54,984,732.11 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
West Haven Town Treasurer |
$54,868,940.07 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
West Haven Town Treasurer |
$54,719,120.89 |
Connecticut State Checkbook |
| 2020 |
Dept Of Energy & Environ Prot. |
Metropolitan District |
$54,610,606.37 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Tilcon Connecticut Inc |
$54,485,509.99 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Waterbury Town Treasurer |
$54,285,335.77 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Windham |
$53,870,977.57 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
City Of Norwich |
$53,741,084.11 |
Connecticut State Checkbook |
| 2024 |
Teachers' Retirement Board |
United Healthcare Insurance Company |
$53,611,640.83 |
Connecticut State Checkbook |
| 2019 |
Capital Reg Dev Authority |
Capital Region Development Authority |
$53,577,160.00 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
O & G Industries Inc |
$53,538,714.60 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Hamden |
$53,311,156.19 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Sunset Shores Of Milford Inc |
$53,172,748.64 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
City Of Bridgeport |
$52,795,117.56 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
Town Of Enfield |
$52,631,613.52 |
Connecticut State Checkbook |
| 2021 |
Dept Of Administrative Svcs |
Capitol Region Education Council |
$52,513,746.40 |
Connecticut State Checkbook |
| 2019 |
Ct Innovations Inc |
Ct Innovations Incorporated |
$52,373,390.22 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
The Connecticut Institute For The Blind Inc |
$52,290,265.05 |
Connecticut State Checkbook |
| 2016 |
Department Of Administrative Services |
The Fusco Corp |
$52,013,302.26 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Community Health Center Inc |
$51,729,360.00 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Gilbane Building Company |
$51,368,808.19 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
City Of Norwich |
$51,123,250.75 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Walsh Construction Company Ii Llc |
$51,104,185.22 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Town Of New London |
$51,050,356.05 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
City Of Danbury |
$50,587,499.68 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
City Of Norwich |
$50,490,161.66 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
O & G Industries Inc |
$50,385,548.61 |
Connecticut State Checkbook |
| 2025 |
Department Of Development Serv |
The Connecticut Institute For The Blind Inc |
$50,159,769.66 |
Connecticut State Checkbook |
| 2021 |
Econ. & Community Development |
Sofi Lending Corp |
$50,000,000.00 |
Connecticut State Checkbook |
| 2020 |
Econ. & Community Development |
Sofi Lending Corp |
$50,000,000.00 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Norwalk Town Treasurer |
$49,982,659.19 |
Connecticut State Checkbook |
| 2023 |
Teachers' Retirement Board |
United Healthcare Insurance Company |
$49,889,689.47 |
Connecticut State Checkbook |
| 2025 |
Office Of Policy & Management |
Waterbury Town Treasurer |
$49,828,391.69 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Town Of Manchester |
$49,684,703.09 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
City Of Danbury |
$49,663,795.52 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Windham |
$49,547,201.15 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Windham |
$49,267,274.68 |
Connecticut State Checkbook |