| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2024 |
Mental Health & Addiction Serv |
Apt Foundation Inc |
$5,298,092.00 |
Connecticut State Checkbook |
| 2022 |
Judicial Branch |
Dept Of Mental Health And Addiction Svcs Central Office |
$5,297,027.92 |
Connecticut State Checkbook |
| 2023 |
Econ. & Community Development |
City Of Hartford |
$5,292,620.07 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Southeast Area Transit |
$5,291,675.39 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Town Of Greenwich |
$5,289,299.95 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Children And Families |
Klingberg Comprehensive Family Services Inc |
$5,288,804.50 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Correction |
Community Health Resources Inc |
$5,288,795.00 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Meriden Town Treasurer |
$5,285,850.98 |
Connecticut State Checkbook |
| 2022 |
Econ. & Community Development |
City Of Hartford |
$5,284,212.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Urban Engineers Inc |
$5,284,151.84 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
Covendis |
$5,284,049.07 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Total Transit Inc |
$5,282,200.00 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Town Of Canton |
$5,282,072.64 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Oxford Town Treasurer |
$5,279,976.07 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Corporation For Public Management |
$5,278,204.18 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
The Bridge Family Center Inc |
$5,276,545.00 |
Connecticut State Checkbook |
| 2019 |
Office Of Policy & Management |
Suffield Town Treasurer |
$5,273,007.82 |
Connecticut State Checkbook |
| 2024 |
Department Of Housing |
102 Pliny Street Llc |
$5,272,778.90 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Town Of Stafford |
$5,272,099.75 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Deloitte Consulting Llp |
$5,272,069.50 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Children And Families |
Community Mental Health Affiliates Inc |
$5,271,724.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Correction |
Connecticut Renaissance Inc |
$5,271,524.91 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of Canton |
$5,269,824.49 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
Meriden Town Treasurer |
$5,265,450.69 |
Connecticut State Checkbook |
| 2018 |
Uconn Health Center |
Kforce Inc |
$5,262,468.72 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
Learn |
$5,262,062.00 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of Greenwich |
$5,261,952.04 |
Connecticut State Checkbook |
| 2019 |
Judicial Branch |
Nafi Connecticut Inc |
$5,260,125.76 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Ari Of Connecticut Inc |
$5,260,099.32 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Town Of Watertown |
$5,259,223.89 |
Connecticut State Checkbook |
| 2023 |
Office Of Early Childhood |
Capitol Region Education Council |
$5,257,611.48 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Town Of Branford |
$5,255,820.00 |
Connecticut State Checkbook |
| 2024 |
Econ. & Community Development |
Media Storm Llc |
$5,254,554.30 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Eastern Community Dev Corp |
$5,254,207.79 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
The New Britain Transportation Company |
$5,253,472.88 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Waterbury Town Treasurer |
$5,251,687.74 |
Connecticut State Checkbook |
| 2022 |
Judicial Branch |
Boys & Girls Village Inc |
$5,249,447.15 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Yale University |
$5,248,783.13 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Stantec Consulting Services Inc |
$5,248,437.91 |
Connecticut State Checkbook |
| 2018 |
Office Of The State Treasurer |
T Rowe Price Associates Inc |
$5,247,779.49 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
Town Of Brookfield |
$5,247,065.03 |
Connecticut State Checkbook |
| 2017 |
Department Of Administrative Services |
Aais Corporation |
$5,242,246.76 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Cheshire |
$5,242,018.47 |
Connecticut State Checkbook |
| 2024 |
Judicial Branch |
Forensic Health Services Llc |
$5,240,310.00 |
Connecticut State Checkbook |
| 2025 |
Department Of Development Serv |
Waterbury Arc Inc |
$5,239,803.72 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Capitol District Energy Center Cogeneration Associates Jv |
$5,239,774.46 |
Connecticut State Checkbook |
| 2019 |
Judicial Branch |
Connecticut Coalition Against Domestic Violence |
$5,234,402.68 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Town Of Darien |
$5,232,568.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Apt Foundation Inc |
$5,230,865.00 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Town Of Rocky Hill |
$5,229,958.84 |
Connecticut State Checkbook |
| 2018 |
State Comptroller |
Care Management Solutions |
$5,229,641.22 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
New England Central Railroad Inc |
$5,228,746.37 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Windsor Independent Living Associates Inc |
$5,228,696.74 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
City Of Norwich |
$5,224,847.48 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Aecom Technical Service Inc |
$5,223,811.80 |
Connecticut State Checkbook |
| 2021 |
Office Of Early Childhood |
New Britain City Treasurer |
$5,222,106.00 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Integrated Day Charter School |
$5,221,762.20 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Lakeside Neurologic |
$5,220,385.80 |
Connecticut State Checkbook |
| 2018 |
Office Of Policy & Management |
Suffield Town Treasurer |
$5,220,148.11 |
Connecticut State Checkbook |
| 2024 |
Department Of Housing |
Sc Oak Grove Llc |
$5,219,999.79 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Tasca Ford |
$5,218,662.80 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Alkon Elm Street Llc |
$5,216,776.44 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Tri-county Arc Inc |
$5,216,312.69 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
United Way Of Connecticut Inc |
$5,215,139.00 |
Connecticut State Checkbook |
| 2025 |
Department Of Housing |
Trinity Tremont Nine Limited Partnership |
$5,214,989.00 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Eversource Cl&P |
$5,214,485.58 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Brass City Charter School Inc |
$5,214,272.84 |
Connecticut State Checkbook |
| 2022 |
Judicial Branch |
Forensic Health Services Llc |
$5,212,439.00 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Waterford Town Treasurer |
$5,208,411.36 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Regional School District 15 Board Of Education |
$5,208,331.06 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Cianbro/middlesex Xv A Joint Venture |
$5,207,436.95 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Interdistrict School For Arts And Communication |
$5,206,441.04 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Eastern Community Dev Corp |
$5,201,853.56 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
New Beginnings For Life Llc |
$5,201,615.29 |
Connecticut State Checkbook |
| 2020 |
Office Of Policy & Management |
Hospital For Special Care |
$5,201,425.73 |
Connecticut State Checkbook |
| 2025 |
Econ. & Community Development |
Norwalk Redevelopment Agency |
$5,200,248.59 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Connecticut Green Bank |
$5,200,000.00 |
Connecticut State Checkbook |
| 2024 |
Dept Of Energy & Environ Prot. |
Connecticut Green Bank |
$5,200,000.00 |
Connecticut State Checkbook |
| 2024 |
Ct State Community College |
Connecticut State University System Office |
$5,198,513.02 |
Connecticut State Checkbook |
| 2024 |
Dept Of Energy & Environ Prot. |
Ridgefield Town Treasurer |
$5,198,495.97 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Ferguson Electric Co Inc |
$5,196,562.54 |
Connecticut State Checkbook |
| 2023 |
Judicial Branch |
Dept Of Mental Health And Addiction Svcs Central Office |
$5,195,737.00 |
Connecticut State Checkbook |
| 2020 |
Office Of Policy & Management |
City Of Norwich |
$5,195,488.24 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Mhq Inc |
$5,193,056.27 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Brass City Charter School Inc |
$5,191,488.70 |
Connecticut State Checkbook |
| 2020 |
Judicial Branch |
Dept Of Mental Health And Addiction Svcs Central Office |
$5,190,225.00 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Social Services |
Eversource Cl&P |
$5,189,436.75 |
Connecticut State Checkbook |
| 2017 |
Judicial Department |
Dept Of Mental Health And Addiction Svcs Central Office |
$5,188,284.48 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of Darien |
$5,187,534.00 |
Connecticut State Checkbook |
| 2017 |
Department Of Administrative Services |
Alkon Elm Street Llc |
$5,187,499.85 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Waterbury Arc Inc |
$5,181,183.12 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Branford |
$5,179,665.18 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Darien |
$5,178,853.15 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Correction |
Cell Staff Llc |
$5,177,055.13 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Town Of Southington |
$5,173,379.06 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Vernon Town Treasurer |
$5,172,792.85 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Close Jensen & Miller Pc |
$5,171,402.82 |
Connecticut State Checkbook |
| 2023 |
Probate Court Administration |
Anthem Bc/Bs Of Connecticut |
$5,169,166.29 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Wellmore Inc |
$5,167,853.45 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Transystems Corporation Of Connecticut |
$5,167,552.39 |
Connecticut State Checkbook |