| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2025 |
Dept. Of Children And Families |
Community Mental Health Affiliates Inc |
$4,272,409.00 |
Connecticut State Checkbook |
| 2017 |
Office Of Early Childhood |
Meriden Town Treasurer |
$4,272,050.81 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
Town Of Groton |
$4,271,978.36 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Correction |
3M Company |
$4,268,731.81 |
Connecticut State Checkbook |
| 2024 |
Judicial Branch |
Natchaug Hospital Inc |
$4,268,186.00 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Booker T Washington Academy |
$4,267,834.00 |
Connecticut State Checkbook |
| 2025 |
Department Of Development Serv |
Turning Leaf Agency Corp |
$4,266,254.60 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Town Of Darien |
$4,265,041.00 |
Connecticut State Checkbook |
| 2025 |
Mental Health & Addiction Serv |
Communicare Inc |
$4,264,225.00 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Public Health |
Yale University |
$4,263,206.31 |
Connecticut State Checkbook |
| 2019 |
Department Of Housing |
Meriden Mills Ii Llc |
$4,262,962.14 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Viability Inc |
$4,262,229.90 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Correction |
C & C Janitorial Supplies Inc |
$4,262,094.71 |
Connecticut State Checkbook |
| 2018 |
Department Of Housing |
Hamden Specialty Housing Llc |
$4,262,078.62 |
Connecticut State Checkbook |
| 2017 |
Judicial Department |
Forensic Health Services Inc |
$4,262,028.00 |
Connecticut State Checkbook |
| 2023 |
Department Of Housing |
The Housing Collective Inc |
$4,261,261.16 |
Connecticut State Checkbook |
| 2019 |
Judicial Branch |
Boys & Girls Village Inc |
$4,259,503.28 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Myers And Stauffer Llc |
$4,258,491.41 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
New England Road Inc |
$4,258,147.76 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Northeast Placement Services Inc |
$4,257,360.32 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Children And Families |
Yale University |
$4,256,639.25 |
Connecticut State Checkbook |
| 2018 |
State Department Of Education |
Park City Prep Charter School |
$4,255,121.20 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Opportunity House Inc |
$4,254,823.54 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Children And Families |
The Bridge Family Center Inc |
$4,251,451.00 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Willington Town Treasurer |
$4,250,818.85 |
Connecticut State Checkbook |
| 2019 |
Judicial Branch |
Eversource Cl&P |
$4,250,321.68 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Family Options |
$4,249,610.87 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
All States Asphalt Inc |
$4,248,036.07 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Ashford |
$4,247,686.09 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Town Of Stafford |
$4,246,007.10 |
Connecticut State Checkbook |
| 2018 |
Department Of Economic & Community Development |
Waterbury Development Corporation |
$4,245,916.50 |
Connecticut State Checkbook |
| 2018 |
Office Of Policy & Management |
Stratford Town Treasurer |
$4,245,259.17 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Trc Enviromental Corporation |
$4,244,957.71 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Region District 14 Treasurer Business Office |
$4,244,953.05 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Children And Families |
Nafi Connecticut Inc |
$4,242,856.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
M & J Engineering Pc |
$4,241,369.21 |
Connecticut State Checkbook |
| 2019 |
Mental Health & Addiction Serv |
Columbus House Inc |
$4,239,870.61 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Park City Prep Charter School |
$4,239,436.60 |
Connecticut State Checkbook |
| 2024 |
Legislative Management |
Smg Corporate Services |
$4,238,438.89 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Region District 14 Treasurer Business Office |
$4,234,751.39 |
Connecticut State Checkbook |
| 2018 |
Department Of Higher Education |
Central Connecticut State University |
$4,232,785.20 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Children And Families |
The Bridge Family Center Inc |
$4,232,191.01 |
Connecticut State Checkbook |
| 2018 |
Department Of Administrative Services |
Capitol District Energy Center Cogeneration Associates Jv |
$4,231,124.90 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Arborio Corp |
$4,228,059.70 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Correction |
Community Health Resources Inc |
$4,227,775.00 |
Connecticut State Checkbook |
| 2017 |
Department Of Developmental Services |
Goodwill Of Western And Northern Connecticut Inc |
$4,227,469.11 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
American Institutes For Research |
$4,226,364.00 |
Connecticut State Checkbook |
| 2023 |
Judicial Branch |
Dell Marketing Lp |
$4,225,997.35 |
Connecticut State Checkbook |
| 2023 |
Judicial Branch |
Yale University |
$4,224,370.58 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Town Of Pomfret Town Treasurer |
$4,221,152.85 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
New Britain City Treasurer |
$4,219,419.75 |
Connecticut State Checkbook |
| 2020 |
Mental Health & Addiction Serv |
Dept Of Children And Families |
$4,218,978.00 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Avon |
$4,218,655.13 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Hdr Engineering Inc |
$4,214,112.40 |
Connecticut State Checkbook |
| 2017 |
Department Of Children And Families |
Connecticut Junior Republic Association Inc |
$4,213,907.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Social Services |
Mercer Health And Benefits Llc |
$4,212,392.50 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Keville Enterprises Inc |
$4,211,373.32 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Correction |
Correctional Enterprises Of Connecticut |
$4,210,656.96 |
Connecticut State Checkbook |
| 2025 |
Office Of Early Childhood |
Deloitte Consulting Llp |
$4,210,213.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Electrical Contractors Inc |
$4,210,008.42 |
Connecticut State Checkbook |
| 2022 |
Department Of Housing |
Overlook Village Associates Llc |
$4,208,017.00 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Correction |
Eversource Energy Yankee Gas Services |
$4,207,414.52 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Pjf Construction Corp |
$4,207,186.04 |
Connecticut State Checkbook |
| 2020 |
Ct Airport Authority (Ops) |
Connecticut Airport Authority |
$4,204,760.90 |
Connecticut State Checkbook |
| 2018 |
University Of Connecticut |
All State Construction Inc |
$4,204,729.37 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Wilton Town Treasurer |
$4,203,859.28 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Allied Universal Security Services |
$4,203,260.28 |
Connecticut State Checkbook |
| 2017 |
State Department On Aging |
Agency On Aging Of South Central Connecticut |
$4,201,447.70 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Consor Engineering And Land Surveying Ny Pc |
$4,200,181.76 |
Connecticut State Checkbook |
| 2020 |
Department Of Housing |
Teachers Corner Hartford Llc |
$4,199,961.00 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Liberation Programs Inc |
$4,195,809.00 |
Connecticut State Checkbook |
| 2020 |
Office Of Policy & Management |
Town Of Groton |
$4,193,764.15 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Goodwill Of Western And Northern Connecticut Inc |
$4,193,532.36 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Capitol Region Council Of Governments |
$4,193,490.10 |
Connecticut State Checkbook |
| 2023 |
Office Of Early Childhood |
City Of Bristol |
$4,193,474.57 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Public Health |
Progressive Diagnostics Llc |
$4,193,120.00 |
Connecticut State Checkbook |
| 2025 |
Ct Tech Educ And Career Sys |
Hpc Foodservice |
$4,192,596.65 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Waterbury Arc Inc |
$4,191,407.96 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Motorola Solutions Inc |
$4,190,890.08 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Burlington |
$4,190,472.00 |
Connecticut State Checkbook |
| 2021 |
Office Of Higher Education |
Central Connecticut State University |
$4,189,957.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Children And Families |
Waterford Country School Inc |
$4,189,575.25 |
Connecticut State Checkbook |
| 2024 |
State Comptroller's Office |
Oracle America Inc |
$4,189,397.92 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Hartland Building & Restoration Co |
$4,188,972.48 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Covendis |
$4,188,925.03 |
Connecticut State Checkbook |
| 2022 |
Dept Of Administrative Svcs |
Torrington Town Treasurer |
$4,188,612.97 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Social Services |
Myers And Stauffer Llc |
$4,186,920.67 |
Connecticut State Checkbook |
| 2021 |
Das - Information Technology |
Frontier Communications Of Connecticut |
$4,183,385.19 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Dime Oil Company Llc |
$4,183,014.27 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
City Of Bridgeport |
$4,182,936.04 |
Connecticut State Checkbook |
| 2025 |
Judicial Branch |
Natchaug Hospital Inc |
$4,182,818.00 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Easter Seal Rehabilitation Center Of Greater Waterbury Inc |
$4,182,296.61 |
Connecticut State Checkbook |
| 2025 |
Econ. & Community Development |
Capital Workforce Partners |
$4,180,725.53 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Stonington |
$4,179,177.15 |
Connecticut State Checkbook |
| 2018 |
Department Of Housing |
Mill At Killingly Apartments Llc |
$4,178,156.20 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Correction |
C & C Janitorial Supplies Inc |
$4,177,192.20 |
Connecticut State Checkbook |
| 2017 |
Department Of Public Safety |
Conduent State & Local Solutions Inc |
$4,175,725.38 |
Connecticut State Checkbook |
| 2017 |
Department Of Economic & Community Development |
City Of Hartford |
$4,174,271.00 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Torrington Town Treasurer |
$4,173,316.77 |
Connecticut State Checkbook |
| 2024 |
Econ. & Community Development |
Lockwood Mathews Mansion Museum Of Norwalk Inc |
$4,172,575.00 |
Connecticut State Checkbook |