| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2017 |
Department Of Correction |
The Connection Inc |
$9,095,922.00 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Children And Families |
Child And Family Agency Of Southeastern Connecticut Inc |
$9,093,831.50 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Public Health |
Yale University |
$9,087,042.90 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Transystems Corporation Of Connecticut |
$9,086,335.06 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Halmar International Llc |
$9,085,877.36 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
North Haven Town Treasurer |
$9,085,529.82 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
New Flyer Of America Inc |
$9,085,151.26 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
United Services Inc |
$9,083,915.56 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Transitamerica Services Inc- Alternate Concepts Inc A Joint Venture |
$9,081,045.15 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Town Of Southington |
$9,077,660.98 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Horizons Programs Inc |
$9,076,106.20 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Constitution State Services Llc |
$9,074,822.17 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
The New Britain Transportation Company |
$9,072,945.33 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Gannett Fleming Inc |
$9,067,670.83 |
Connecticut State Checkbook |
| 2024 |
Judicial Branch |
Connecticut Coalition Against Domestic Violence |
$9,067,362.68 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of East Windsor |
$9,067,338.83 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Thompson Town Treasurer |
$9,066,405.38 |
Connecticut State Checkbook |
| 2018 |
Department Of Public Health |
Sanofi Pasteur Inc |
$9,062,293.71 |
Connecticut State Checkbook |
| 2021 |
Dept Of Administrative Svcs |
O & G Industries Inc |
$9,057,587.79 |
Connecticut State Checkbook |
| 2018 |
Department Of Children And Families |
Advanced Behaviorial Health Inc |
$9,056,472.94 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
The Quaker Corporation |
$9,050,329.16 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
West Haven Town Treasurer |
$9,042,776.00 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Windham |
$9,039,865.22 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Eversource Cl&P |
$9,034,777.26 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Resources For Human Development Inc |
$9,028,139.76 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of East Hampton Town Treasurer |
$9,027,958.22 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Marc Community Resources Ltd |
$9,015,048.28 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Monroe Town Treasurer |
$9,013,467.15 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
North Branford Town Treasurer |
$9,012,249.49 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Labor |
Northwest Regional Workforce Investment Board Inc |
$9,009,581.64 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Advanced Behaviorial Health Inc |
$9,008,179.99 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
The Connection Inc |
$9,007,196.64 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Alternative Services Connecticut Inc |
$9,007,162.63 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Correction |
Community Solutions Inc |
$9,004,354.30 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Correction |
Eversource Cl&P |
$9,003,543.39 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Cw Resources Inc |
$9,002,006.80 |
Connecticut State Checkbook |
| 2017 |
Department Of Economic & Community Development |
Edac Technologies Corporation Gros-ite Industries |
$9,000,000.00 |
Connecticut State Checkbook |
| 2023 |
State Comptroller's Office |
Koskoff Koskoff & Bieder Pc |
$9,000,000.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Children And Families |
The Village For Families & Children Inc |
$8,998,277.00 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Ny Conn Corp |
$8,996,575.66 |
Connecticut State Checkbook |
| 2017 |
Judicial Department |
Connecticut Junior Republic Association Inc |
$8,994,942.00 |
Connecticut State Checkbook |
| 2017 |
Department Of Administrative Services |
Town Of Rocky Hill |
$8,991,497.00 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
The Access Agency Inc |
$8,990,177.46 |
Connecticut State Checkbook |
| 2018 |
Office Of The State Treasurer |
Schroder Investment Management North America Inc |
$8,989,931.17 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Town Of East Hampton Town Treasurer |
$8,988,278.77 |
Connecticut State Checkbook |
| 2022 |
Econ. & Community Development |
City Of New Haven |
$8,982,642.00 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Clifford W Beers Guidance Clinic Inc |
$8,982,472.12 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Costello Industries Inc |
$8,976,187.53 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Sarah Tuxis Residential Services Inc |
$8,974,416.04 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Suffield Town Treasurer |
$8,972,121.17 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
American School For The Deaf |
$8,962,356.00 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Benhaven Inc |
$8,961,233.09 |
Connecticut State Checkbook |
| 2017 |
Department Of Mental Heath And Addiction Services |
Sound Community Services Inc |
$8,955,495.52 |
Connecticut State Checkbook |
| 2023 |
Dept Of Energy & Environ Prot. |
The United Illuminating Company |
$8,954,226.10 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
City Of Stamford |
$8,953,675.04 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Stv Incorporated |
$8,953,543.14 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
St Vincents Special Needs Center Inc |
$8,953,121.52 |
Connecticut State Checkbook |
| 2022 |
Mental Health & Addiction Serv |
Gilead Community Services Inc |
$8,938,294.00 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Eastern Community Development Corporation |
$8,937,869.62 |
Connecticut State Checkbook |
| 2020 |
Econ. & Community Development |
Lockheed Martin Corporation |
$8,921,429.00 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
North Branford Town Treasurer |
$8,905,859.68 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Rocky Hill |
$8,904,600.81 |
Connecticut State Checkbook |
| 2021 |
Judicial Branch |
Connecticut Junior Republic Association Inc |
$8,897,576.31 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Alternative Services Connecticut Inc |
$8,894,968.40 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Gilead Community Services Inc |
$8,889,933.00 |
Connecticut State Checkbook |
| 2017 |
Uconn Health Center |
Owens & Minor |
$8,889,400.61 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Town Of Coventry |
$8,888,264.57 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
The Connection Inc |
$8,876,348.75 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Berlin |
$8,873,582.17 |
Connecticut State Checkbook |
| 2024 |
Office Of Early Childhood |
Deloitte Consulting Llp |
$8,870,799.02 |
Connecticut State Checkbook |
| 2020 |
Judicial Branch |
Fusco Management Co Llc |
$8,868,062.35 |
Connecticut State Checkbook |
| 2018 |
Office Of Policy & Management |
Town Of Hamden |
$8,859,594.14 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Marc Inc Of Manchester |
$8,848,314.24 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Bridges Healthcare Inc |
$8,844,421.52 |
Connecticut State Checkbook |
| 2025 |
Office Of Early Childhood |
Norwalk Town Treasurer |
$8,843,801.04 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of East Hampton Town Treasurer |
$8,843,301.52 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Thompson Town Treasurer |
$8,831,316.59 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Children And Families |
Advanced Behaviorial Health Inc |
$8,824,700.26 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
City Of Bridgeport |
$8,819,199.46 |
Connecticut State Checkbook |
| 2021 |
Office Of Early Childhood |
City Of New Haven |
$8,818,147.14 |
Connecticut State Checkbook |
| 2018 |
Office Of Policy & Management |
Town Of East Hartford Town Treasurer |
$8,817,715.58 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Aecom Technical Service Inc |
$8,814,959.89 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
East River Energy Inc |
$8,806,036.44 |
Connecticut State Checkbook |
| 2024 |
Econ. & Community Development |
Connecticut Center For Advanced Technology Inc |
$8,802,602.55 |
Connecticut State Checkbook |
| 2019 |
Judicial Branch |
Connecticut Junior Republic Association Inc |
$8,799,039.00 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Suffield Town Treasurer |
$8,793,878.37 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Team Inc |
$8,791,551.65 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
March Inc Of Manchester |
$8,791,452.62 |
Connecticut State Checkbook |
| 2022 |
Mental Health & Addiction Serv |
The Connection Inc |
$8,788,925.00 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
I-84 Constructors Jv |
$8,782,758.12 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Institute Of Professional Practice |
$8,781,000.79 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Town Of Weston |
$8,773,206.31 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Jumoke Academy |
$8,771,759.00 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Newtown Town Treasurer |
$8,764,845.04 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Boys & Girls Village Inc |
$8,764,463.74 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Children And Families |
The Child And Family Guidance Center Inc |
$8,763,951.78 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Clifford W Beers Guidance Clinic Inc |
$8,754,771.71 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Thompson Town Treasurer |
$8,750,957.26 |
Connecticut State Checkbook |
| 2023 |
Econ. & Community Development |
Capital Region Development Authority |
$8,749,121.00 |
Connecticut State Checkbook |
| 2025 |
Dept Of Administrative Svcs |
Mcgovern Mhq Inc |
$8,741,414.20 |
Connecticut State Checkbook |