| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2021 |
Dept. Of Transportation |
Greater Hartford Transit Distrct |
$19,519,026.64 |
Connecticut State Checkbook |
| 2022 |
Dept Of Administrative Svcs |
Capitol Region Education Council |
$19,515,449.60 |
Connecticut State Checkbook |
| 2016 |
Department Of Social Services |
Xerox Government Systems Llc |
$19,473,038.11 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Connecticut Health Insurance Exchange |
$19,460,717.63 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of Killingly |
$19,433,748.93 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
City Of Milford |
$19,412,492.02 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Northeast Transportation Co Inc |
$19,405,708.73 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Norwalk Transit District |
$19,403,631.94 |
Connecticut State Checkbook |
| 2023 |
Econ. & Community Development |
Connecticut Center For Advanced Technology Inc |
$19,403,000.00 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Whole Life Inc |
$19,372,673.58 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Greater New Haven Water Pollution Control Authority |
$19,362,878.43 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Beacon Health Options Inc |
$19,360,228.85 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Public Health |
Merck Sharp & Dohme Corp |
$19,344,143.42 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Community Health Resources Inc |
$19,342,981.36 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Greater Bridgeport Transit Authority |
$19,334,947.47 |
Connecticut State Checkbook |
| 2016 |
Department Of Mental Heath And Addiction Services |
Community Health Resources Inc |
$19,326,218.69 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Hntb Corporation |
$19,313,628.52 |
Connecticut State Checkbook |
| 2022 |
State Comptroller's Office |
United Healthcare Insurance Company |
$19,312,386.12 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Gm2 Associates Inc |
$19,307,308.10 |
Connecticut State Checkbook |
| 2019 |
Office Of Policy & Management |
Office Of The State Treasurer |
$19,300,000.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Blast All Inc |
$19,299,078.91 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Beacon Health Options Inc |
$19,269,897.00 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
Town Of Killingly |
$19,267,119.68 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Killingly |
$19,254,652.99 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Community Health Resources Inc |
$19,251,307.50 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Ices Inc |
$19,188,619.61 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Marrakech Housing Options Inc |
$19,154,874.98 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Plainfield |
$19,133,534.45 |
Connecticut State Checkbook |
| 2016 |
Office Of Policy & Management |
Waterbury Town Treasurer |
$19,129,462.13 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Correction |
Uconn Health Center |
$19,126,204.48 |
Connecticut State Checkbook |
| 2018 |
Capital Region Dev Authority |
Capital Region Development Authority |
$19,099,000.00 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Town Of Killingly |
$19,082,232.47 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Rms Development Inc |
$19,067,108.29 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Center For Human Development Inc |
$19,066,140.15 |
Connecticut State Checkbook |
| 2017 |
Probate Court Administration |
Connecticut Probate Courts |
$19,066,110.36 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
New Britain City Treasurer |
$19,046,464.11 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Town Of Killingly |
$19,035,683.65 |
Connecticut State Checkbook |
| 2025 |
Department Of Development Serv |
Ability Beyond Disability Inc |
$19,032,576.83 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Community Mental Health Affiliates Inc |
$19,024,589.17 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Children And Families |
The Connection Inc |
$19,015,253.89 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Mosaic |
$19,014,084.78 |
Connecticut State Checkbook |
| 2024 |
Ct State Community College |
Dept Of Higher Education |
$19,003,160.30 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Bloomfield |
$18,992,795.58 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Correction |
Hpc Foodservice |
$18,991,495.24 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Alliance For Community Empowerment Inc |
$18,980,427.76 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Newington Town Treasurer |
$18,971,059.11 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
West Haven Town Treasurer |
$18,952,932.41 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
Anthem Bc/Bs Of Connecticut |
$18,946,935.51 |
Connecticut State Checkbook |
| 2024 |
Teachers' Retirement Board |
Cigna Health And Life Insurance Company |
$18,926,180.88 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Social Services |
Beacon Health Options Inc |
$18,903,028.50 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Undisclosed |
$18,883,116.49 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Connecticut Health Insurance Exchange |
$18,863,116.50 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
Shawmut Design And Construction |
$18,854,066.87 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
West Haven Town Treasurer |
$18,840,398.72 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Community Mental Health Affiliates Inc |
$18,826,748.71 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Community Health Resources Inc |
$18,817,474.48 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Town Of Plainfield |
$18,817,139.74 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
Wethersfield Town Treasurer |
$18,808,762.11 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
The Connection Inc |
$18,803,325.00 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Public Health |
Griffin Hospital |
$18,781,562.67 |
Connecticut State Checkbook |
| 2022 |
Dept Of Energy & Environ Prot. |
Stratford Town Treasurer |
$18,778,782.38 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Town Of New London |
$18,757,339.01 |
Connecticut State Checkbook |
| 2023 |
Teachers' Retirement Board |
Cigna Health And Life Insurance Company |
$18,752,862.96 |
Connecticut State Checkbook |
| 2022 |
Econ. & Community Development |
Capital Region Development Authority |
$18,736,121.00 |
Connecticut State Checkbook |
| 2020 |
Mental Health & Addiction Serv |
Community Health Resources Inc |
$18,724,067.52 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
The Arc Of The Farmington Valley Inc |
$18,716,730.17 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Key Human Services Inc |
$18,703,034.19 |
Connecticut State Checkbook |
| 2019 |
Probate Court Administration |
Connecticut Probate Courts |
$18,697,609.98 |
Connecticut State Checkbook |
| 2018 |
Probate Court Administration |
Connecticut Probate Courts |
$18,684,392.34 |
Connecticut State Checkbook |
| 2019 |
Mental Health & Addiction Serv |
Community Health Resources Inc |
$18,683,604.60 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Vinfen Corporation Of Connecticut Inc |
$18,659,338.45 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Ability Beyond Disability Inc |
$18,654,865.55 |
Connecticut State Checkbook |
| 2017 |
Department Of Administrative Services |
Kbe Building Corporation |
$18,653,821.08 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
Town Of East Hartford Town Treasurer |
$18,630,849.25 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
Putnam Town Treasurer |
$18,619,913.43 |
Connecticut State Checkbook |
| 2016 |
Department Of Administrative Services |
Meriden Town Treasurer |
$18,608,289.17 |
Connecticut State Checkbook |
| 2024 |
Judicial Branch |
Community Partners In Action Inc |
$18,606,447.00 |
Connecticut State Checkbook |
| 2025 |
Department Of Development Serv |
Midstate Arc Inc |
$18,593,672.86 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
State Education Resource Center |
$18,562,747.85 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Achievement First Bridgeport Academy Inc |
$18,541,149.23 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Windsor |
$18,527,994.61 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Social Services |
Connecticut Health Insurance Exchange |
$18,516,246.93 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Advanced Behaviorial Health Inc |
$18,512,233.29 |
Connecticut State Checkbook |
| 2016 |
State Department Of Education |
Town Of Plainfield |
$18,511,006.86 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
New Britain City Treasurer |
$18,510,157.69 |
Connecticut State Checkbook |
| 2019 |
Ct Airport Authority (Ops) |
Tilcon Connecticut Inc |
$18,508,712.96 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Harc Inc |
$18,485,335.32 |
Connecticut State Checkbook |
| 2016 |
Department Of Developmental Services |
Marrakech Housing Options Inc |
$18,446,302.23 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
City Of Stamford |
$18,434,991.48 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Am Rizzo Electrical Contractors Inc |
$18,424,281.75 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Rms Development Inc |
$18,423,377.16 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Town Of Ledyard |
$18,420,520.00 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Mansfield Town Treasurer |
$18,420,285.41 |
Connecticut State Checkbook |
| 2022 |
Ccc - Manchester |
Community College System Office |
$18,409,453.85 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Marrakech Housing Options Inc |
$18,352,775.43 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Area Cooperative Educational Services |
$18,340,368.17 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Achievement First Bridgeport Academy Inc |
$18,338,031.72 |
Connecticut State Checkbook |
| 2023 |
Judicial Branch |
Community Partners In Action Inc |
$18,325,882.00 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Plainville |
$18,306,793.41 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Pds Eng & Constr |
$18,301,373.69 |
Connecticut State Checkbook |