| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2022 |
Dept. Of Transportation |
Greater Hartford Transit Distrct |
$22,399,308.28 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Community Mental Health Affiliates Inc |
$22,373,821.10 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Wsp Usa Inc |
$22,321,485.16 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Carelon Behavioral Health Inc |
$22,277,080.76 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
City Of Hartford |
$22,266,308.84 |
Connecticut State Checkbook |
| 2019 |
Mental Health & Addiction Serv |
Yale University |
$22,248,340.48 |
Connecticut State Checkbook |
| 2017 |
Department Of Children And Families |
Wheeler Clinic Inc |
$22,228,957.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
The Kennedy Center Inc |
$22,192,735.88 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Children And Families |
Wheeler Clinic Inc |
$22,185,794.72 |
Connecticut State Checkbook |
| 2020 |
Public Defender Services |
Undisclosed |
$22,184,347.95 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Children And Families |
Wheeler Clinic Inc |
$22,176,205.73 |
Connecticut State Checkbook |
| 2024 |
State Comptroller's Office |
Accenture Llp |
$22,120,677.00 |
Connecticut State Checkbook |
| 2022 |
Probate Court Administration |
Connecticut Probate Courts |
$22,091,679.78 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Newington Town Treasurer |
$22,062,878.20 |
Connecticut State Checkbook |
| 2024 |
Office Of Higher Education |
University Of Connecticut |
$22,039,929.53 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Halmar International Llc |
$22,027,123.69 |
Connecticut State Checkbook |
| 2018 |
Department Of Economic & Community Development |
Bridgewater Associates Lp |
$22,000,000.00 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Social Services |
Deloitte Consulting Llp |
$21,996,997.03 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Bhcare Inc |
$21,957,870.32 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Hammonasset Construction Llc |
$21,918,413.81 |
Connecticut State Checkbook |
| 2018 |
Department Of Children And Families |
Wheeler Clinic Inc |
$21,915,300.00 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Public Health |
Merck Sharp & Dohme Llc |
$21,906,187.76 |
Connecticut State Checkbook |
| 2017 |
Department Of Social Services |
Community Renewal Team Inc |
$21,861,422.41 |
Connecticut State Checkbook |
| 2021 |
Dept Of Administrative Svcs |
Tolland Town Treasurer |
$21,847,813.03 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Office Of Health Strategy |
$21,827,257.90 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
American Bridge Company |
$21,770,666.15 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Whole Life Inc |
$21,759,892.97 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Northeast Transportation Co Inc |
$21,759,490.54 |
Connecticut State Checkbook |
| 2019 |
Dept Of Administrative Svcs |
Capitol Region Education Council |
$21,699,786.58 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Social Services |
Community Renewal Team Inc |
$21,676,693.18 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Middletown |
$21,664,041.65 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Northeast Transportation Co Inc |
$21,624,583.69 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
The Arc Eastern Connecticut |
$21,603,815.83 |
Connecticut State Checkbook |
| 2023 |
Public Defender Services |
Undisclosed |
$21,569,229.29 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Newington Town Treasurer |
$21,537,630.66 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Vinfen Corporation Of Connecticut Inc |
$21,535,254.78 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
The Caring Community Of Connecticut Inc |
$21,523,847.02 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Greater Hartford Transit Distrct |
$21,519,931.22 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Rms Development Inc |
$21,500,427.62 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Yale University |
$21,470,923.80 |
Connecticut State Checkbook |
| 2018 |
Department Of Social Services |
Community Renewal Team Inc |
$21,445,763.00 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Network Inc |
$21,445,176.52 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
City Of New Haven |
$21,432,102.61 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Key Human Services Inc |
$21,421,714.90 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Community Systems Inc |
$21,409,347.29 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Greater Hartford Transit Distrct |
$21,387,002.42 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Correction |
Quest Diagnostics Incorporated |
$21,370,995.05 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Wethersfield Town Treasurer |
$21,361,435.09 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Social Services |
Tvcca Inc |
$21,323,436.99 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Northeast Transportation Co Inc |
$21,283,521.87 |
Connecticut State Checkbook |
| 2022 |
Econ. & Community Development |
Connecticut Humanities Council Inc |
$21,272,318.00 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
Marrakech Housing Options Inc |
$21,225,731.08 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Wethersfield Town Treasurer |
$21,214,787.34 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Town Of Windsor |
$21,183,423.16 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Dept Of Mental Health And Addiction Svcs Central Office |
$21,177,316.73 |
Connecticut State Checkbook |
| 2022 |
Dept Of Administrative Svcs |
Assuredpartners New England Inc |
$21,119,497.45 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Social Services |
New Opportunities Inc |
$21,085,888.01 |
Connecticut State Checkbook |
| 2019 |
Dept Of Administrative Svcs |
West Haven Town Treasurer |
$21,050,553.00 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
The Caring Community Of Connecticut Inc |
$21,039,728.96 |
Connecticut State Checkbook |
| 2019 |
Dept Of Administrative Svcs |
Stratford Town Treasurer |
$20,952,704.00 |
Connecticut State Checkbook |
| 2022 |
Dept Of Emrg Svc & Public Prot |
Dept Of Public Health |
$20,924,304.65 |
Connecticut State Checkbook |
| 2017 |
Connecticut Housing Finance Authority |
Connecticut Housing Finance Authority |
$20,908,654.36 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Public Health |
City Of Groton |
$20,889,091.15 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Network Inc |
$20,846,116.95 |
Connecticut State Checkbook |
| 2017 |
Department Of Public Health |
Dept Of Social Services |
$20,844,175.64 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Town Of Killingly |
$20,831,777.38 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Key Human Services Inc |
$20,830,405.60 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Dept Of Administrative Services |
$20,801,078.47 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Town Of Plainfield |
$20,745,317.10 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Whole Life Inc |
$20,740,366.28 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Windsor |
$20,721,856.52 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Continuum Of Care Inc |
$20,607,216.58 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Empire Paving Inc |
$20,601,705.47 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Transportation |
Northeast Transportation Co Inc |
$20,595,785.61 |
Connecticut State Checkbook |
| 2022 |
Public Defender Services |
Undisclosed |
$20,569,755.15 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Hntb Corporation |
$20,560,716.04 |
Connecticut State Checkbook |
| 2023 |
State Dept Of Education |
Town Of Plainfield |
$20,544,346.81 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Vinfen Corporation Of Connecticut Inc |
$20,529,045.12 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Windsor |
$20,510,217.64 |
Connecticut State Checkbook |
| 2017 |
Department Of Mental Heath And Addiction Services |
Dept Of Mental Health And Addiction Svcs Central Office |
$20,505,819.09 |
Connecticut State Checkbook |
| 2021 |
State Dept Of Education |
Town Of Killingly |
$20,462,976.46 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Community Renewal Team Inc |
$20,443,780.02 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
City Of Danbury |
$20,434,307.79 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Advanced Behaviorial Health Inc |
$20,394,622.19 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Norwalk Town Treasurer |
$20,388,378.54 |
Connecticut State Checkbook |
| 2017 |
Department Of Mental Heath And Addiction Services |
Yale University |
$20,379,901.03 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Town Of Windham |
$20,353,645.02 |
Connecticut State Checkbook |
| 2018 |
Department Of Transportation |
Rotha Contr Co Inc |
$20,330,194.66 |
Connecticut State Checkbook |
| 2022 |
Mental Health & Addiction Serv |
Community Health Resources Inc |
$20,326,876.50 |
Connecticut State Checkbook |
| 2021 |
Dept Of Energy & Environ Prot. |
Town Of Wallingford Treasurer Office |
$20,324,055.62 |
Connecticut State Checkbook |
| 2022 |
Ccc - Naugatuck Valley |
Community College System Office |
$20,323,221.48 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Hntb Corporation |
$20,320,354.83 |
Connecticut State Checkbook |
| 2021 |
Probate Court Administration |
Connecticut Probate Courts |
$20,282,190.77 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Dept Of Mental Health And Addiction Svcs Central Office |
$20,280,000.00 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Social Services |
Connecticut Health Insurance Exchange |
$20,170,886.57 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Wsp Usa Inc |
$20,143,803.77 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Key Human Services Inc |
$20,138,263.17 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Community Systems Inc |
$20,119,800.51 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Banton Construction Company Inc |
$20,119,119.70 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Community Systems Inc |
$20,114,467.54 |
Connecticut State Checkbook |