| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2022 |
Dept Of Emrg Svc & Public Prot |
At&T Corp |
$4,632,755.35 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
City Of Milford |
$4,631,342.23 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Meriden Town Treasurer |
$4,631,001.08 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Icast International Center For Appropriate And Sustainable Technology |
$4,629,423.95 |
Connecticut State Checkbook |
| 2024 |
Dept Of Energy & Environ Prot. |
Hedco Inc |
$4,626,010.37 |
Connecticut State Checkbook |
| 2018 |
Department Of Children And Families |
Dell Marketing Lp |
$4,625,834.44 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Ny Conn Corp |
$4,625,474.53 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Public Health |
Connecticut Institute For Communities Inc |
$4,625,156.29 |
Connecticut State Checkbook |
| 2019 |
Dept Of Administrative Svcs |
University Of Connecticut |
$4,625,070.89 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Prospect Town Treasurer |
$4,625,006.00 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Apt Foundation Inc |
$4,621,886.00 |
Connecticut State Checkbook |
| 2023 |
Dept Of Emrg Svc & Public Prot |
Middlesex Hospital |
$4,620,595.94 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Social Services |
Southern Connecticut Gas Company |
$4,619,959.50 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Conn Assoc Of Public School Superintendent |
$4,619,825.00 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Dept Of Children And Families |
$4,618,376.00 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Viability Inc |
$4,617,245.89 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Correction |
Sysco Connecticut Llc |
$4,613,538.82 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Darien |
$4,613,132.94 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Dime Oil Company Llc |
$4,609,742.05 |
Connecticut State Checkbook |
| 2017 |
University Of Connecticut |
C&w Facility Services Inc |
$4,609,638.15 |
Connecticut State Checkbook |
| 2019 |
Ccc - Middlesex |
Community College System Office |
$4,608,261.89 |
Connecticut State Checkbook |
| 2017 |
Department Of Administrative Services |
Town Of Enfield |
$4,599,762.00 |
Connecticut State Checkbook |
| 2020 |
Dept Of Energy & Environ Prot. |
Connecticut Green Bank |
$4,596,778.99 |
Connecticut State Checkbook |
| 2024 |
Department Of Housing |
Crescent Crossings 1C Llc |
$4,596,009.55 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Waterford Town Treasurer |
$4,595,673.20 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Viability Inc |
$4,595,304.52 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
Town Of West Hartford Dir Of Finance Office |
$4,593,500.85 |
Connecticut State Checkbook |
| 2023 |
Office Of Early Childhood |
City Of Danbury |
$4,590,653.80 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Allied Universal Security Services |
$4,589,963.80 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Housatonic Area Regional Transit |
$4,589,228.43 |
Connecticut State Checkbook |
| 2019 |
Department Of Housing |
Sbv2 Owner Llc |
$4,587,797.37 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
The Consultants Consortium Inc |
$4,587,134.67 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Public Health |
Sanofi Pasteur Inc |
$4,583,431.74 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Close Jensen & Miller Pc |
$4,579,722.62 |
Connecticut State Checkbook |
| 2020 |
Ccc - Middlesex |
Community College System Office |
$4,579,554.88 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Norwalk Town Treasurer |
$4,577,567.99 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Park City Prep Charter School |
$4,577,299.52 |
Connecticut State Checkbook |
| 2025 |
Office Of Higher Education |
Central Connecticut State University |
$4,572,740.00 |
Connecticut State Checkbook |
| 2023 |
Ct Innovations Inc |
Ct Innovations Incorporated |
$4,569,346.75 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Motorola Solutions Inc |
$4,568,571.00 |
Connecticut State Checkbook |
| 2024 |
Office Of Early Childhood |
City Of Danbury |
$4,568,362.75 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Meriden Town Treasurer |
$4,567,271.15 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
The Bridge Academy |
$4,566,307.32 |
Connecticut State Checkbook |
| 2025 |
Dept Of Administrative Svcs |
Shi International Corp |
$4,565,927.61 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
City Of Bridgeport |
$4,565,581.49 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Klingberg Comprehensive Family Services Inc |
$4,565,080.50 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Conduent State & Local Solutions Inc |
$4,564,937.48 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Edadvance |
$4,564,419.10 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Rehab. Services |
Eastern Ct Area Agency On Aging |
$4,564,370.00 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Gannett Fleming Inc |
$4,563,886.70 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Canterbury |
$4,562,482.55 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Integrated Day Charter School |
$4,557,999.48 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Schultz Corporation |
$4,557,328.29 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Trc Enviromental Corporation |
$4,554,976.95 |
Connecticut State Checkbook |
| 2020 |
Office Of Policy & Management |
Town Of Cheshire |
$4,553,733.62 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Transystems Corporation Of Connecticut |
$4,552,864.12 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Infrastructure Engineers Llc |
$4,552,611.21 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Options Unlimited Inc |
$4,552,385.66 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
Southern Connecticut Gas Company |
$4,552,210.00 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Town Of Branford |
$4,550,885.86 |
Connecticut State Checkbook |
| 2018 |
Office Of The State Treasurer |
First Quadrant Lp |
$4,550,497.00 |
Connecticut State Checkbook |
| 2025 |
Judicial Branch |
Rm Bradley Management Corporation |
$4,549,952.29 |
Connecticut State Checkbook |
| 2020 |
Dept Of Administrative Svcs |
Town Of North Stonington |
$4,548,281.06 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Viability Inc |
$4,547,875.27 |
Connecticut State Checkbook |
| 2025 |
Judicial Branch |
Yale University |
$4,545,020.77 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
United Security Inc |
$4,543,403.04 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Montville |
$4,540,182.65 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Integrated Day Charter School |
$4,539,496.41 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
Wethersfield Town Treasurer |
$4,538,132.23 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Michael Baker International Inc |
$4,535,407.36 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
All States Asphalt Inc |
$4,534,591.81 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
United Cerebral Palsy Association Of Eastern Connecticut Inc |
$4,534,219.17 |
Connecticut State Checkbook |
| 2018 |
University Of Connecticut |
Ebsco Industries Inc |
$4,533,420.47 |
Connecticut State Checkbook |
| 2023 |
Department Of Housing |
Connecticut Childrens Medical Center |
$4,533,042.08 |
Connecticut State Checkbook |
| 2022 |
Ct Housing & Fin. Authority |
Connecticut Housing Finance Authority |
$4,532,828.99 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Urban Engineers Inc |
$4,531,388.38 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Brass City Charter School Inc |
$4,530,273.21 |
Connecticut State Checkbook |
| 2018 |
Department Of Economic & Community Development |
Connecticut Center For Advanced Technology Inc |
$4,529,945.94 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
Sarah Inc |
$4,528,624.15 |
Connecticut State Checkbook |
| 2020 |
Dept Of Emrg Svc & Public Prot |
Covendis |
$4,524,892.49 |
Connecticut State Checkbook |
| 2022 |
Department Of Housing |
Chrysalis Center Inc |
$4,522,774.00 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Correction |
Correctional Enterprises Of Connecticut |
$4,519,279.25 |
Connecticut State Checkbook |
| 2017 |
Department Of Housing |
Avery Park Limited Partnership |
$4,517,382.00 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
City Of Ansonia Town Treasurer |
$4,516,903.90 |
Connecticut State Checkbook |
| 2022 |
Mental Health & Addiction Serv |
Columbus House Inc |
$4,516,650.21 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
The West Haven Community House Association Inc |
$4,515,924.80 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
G I L Foundation Inc |
$4,515,086.83 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Dept Of Mental Health And Addiction Svcs Central Office |
$4,513,071.97 |
Connecticut State Checkbook |
| 2018 |
University Of Connecticut |
Constitution Plaza Holding Llc |
$4,513,007.62 |
Connecticut State Checkbook |
| 2018 |
Department Of Social Services |
Eversource Cl&P |
$4,511,004.58 |
Connecticut State Checkbook |
| 2021 |
Dept Of Emrg Svc & Public Prot |
At&T Corp |
$4,510,376.99 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Hpc Foodservice |
$4,510,150.16 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Correction |
Correctional Enterprises Of Connecticut |
$4,510,002.83 |
Connecticut State Checkbook |
| 2025 |
Connecticut State Library |
Town Of Southington |
$4,509,975.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
City Of Danbury |
$4,506,296.50 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Labor |
Covendis |
$4,504,562.91 |
Connecticut State Checkbook |
| 2023 |
Dept Of Energy & Environ Prot. |
Center For Sustainable Energy |
$4,503,968.00 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
Town Of Somers Town Treasurer |
$4,502,677.89 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Marrakech Day Services |
$4,501,939.00 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Marrakech Inc |
$4,501,728.95 |
Connecticut State Checkbook |