| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2021 |
Office Of Early Childhood |
Tvcca Inc |
$4,171,299.40 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Housatonic Area Regional Transit |
$4,169,197.00 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Social Services |
Covendis |
$4,165,898.62 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Public Health |
Yale New Haven Hospital |
$4,164,722.09 |
Connecticut State Checkbook |
| 2025 |
Dept Of Administrative Svcs |
Town Of Groton |
$4,164,140.00 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Manchester |
$4,162,745.70 |
Connecticut State Checkbook |
| 2022 |
Office Of Early Childhood |
Edadvance |
$4,162,702.02 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Windsor Independent Living Associates Inc |
$4,162,684.67 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Wallingford Treasurer Office |
$4,162,279.70 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Preston Town Treasurer |
$4,159,500.95 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Baroco Corp |
$4,158,468.41 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
Town Of Guilford |
$4,157,007.55 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
Town Of Greenwich |
$4,156,575.86 |
Connecticut State Checkbook |
| 2021 |
Econ. & Community Development |
Mystic Aquarium |
$4,156,183.00 |
Connecticut State Checkbook |
| 2022 |
Judicial Branch |
Natchaug Hospital Inc |
$4,155,396.97 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Ashford |
$4,154,856.04 |
Connecticut State Checkbook |
| 2018 |
Department Of Developmental Services |
The Arc Of Quinebaug Valley Inc |
$4,154,554.37 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
H O Penn Machinery Co Inc |
$4,153,963.28 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Windsor Independent Living Associates Inc |
$4,153,745.70 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Town Of Killingly |
$4,152,313.07 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Urs Corporation Aes |
$4,150,224.24 |
Connecticut State Checkbook |
| 2025 |
Dept Of Energy & Environ Prot. |
Tri-Lakes Llc |
$4,149,034.62 |
Connecticut State Checkbook |
| 2025 |
Department Of Housing |
Monarch Apartment Homes Llc |
$4,147,869.09 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
New England Road Inc |
$4,147,233.00 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
Carahsoft Technology Corporation |
$4,146,575.92 |
Connecticut State Checkbook |
| 2020 |
Office Of Higher Education |
Southern Connecticut State University |
$4,144,356.00 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
Dept Of Children And Families |
$4,144,250.00 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Social Services |
Connecticare Insurance Company Inc |
$4,141,665.79 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
Town Of Fairfield |
$4,136,449.72 |
Connecticut State Checkbook |
| 2020 |
Dept. Of Public Health |
Optimus Health Care Inc |
$4,136,164.03 |
Connecticut State Checkbook |
| 2021 |
Department Of Development Serv |
Waterbury Arc Inc |
$4,135,791.44 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Eastconn |
$4,133,704.03 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
Northeast Placement Services Inc |
$4,132,465.27 |
Connecticut State Checkbook |
| 2021 |
Mental Health & Addiction Serv |
Columbus House Inc |
$4,132,445.00 |
Connecticut State Checkbook |
| 2018 |
Department Of Mental Heath And Addiction Services |
Columbus House Inc |
$4,131,463.12 |
Connecticut State Checkbook |
| 2022 |
Office Of Policy & Management |
Town Of Bloomfield |
$4,128,969.64 |
Connecticut State Checkbook |
| 2019 |
Dept Of Administrative Svcs |
Harry Grodsky & Co Inc |
$4,125,772.93 |
Connecticut State Checkbook |
| 2024 |
Dept Of Energy & Environ Prot. |
City Of Stamford |
$4,125,326.96 |
Connecticut State Checkbook |
| 2022 |
State Dept Of Education |
Odyssey Community School Inc |
$4,124,577.30 |
Connecticut State Checkbook |
| 2017 |
Department Of Children And Families |
Beacon Health Options Inc |
$4,122,702.21 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Public Health |
Town Of Guilford |
$4,122,614.68 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Mercy Housing & Shelter Corporation |
$4,120,682.88 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Preston Town Treasurer |
$4,120,497.16 |
Connecticut State Checkbook |
| 2020 |
State Dept Of Education |
Regional School District 15 Board Of Education |
$4,119,397.73 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of Burlington |
$4,118,158.00 |
Connecticut State Checkbook |
| 2019 |
Department Of Development Serv |
The Arc Of Quinebaug Valley Inc |
$4,116,991.79 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Children And Families |
Nafi Connecticut Inc |
$4,116,421.00 |
Connecticut State Checkbook |
| 2022 |
Office Of Early Childhood |
Capitol Region Education Council |
$4,114,483.34 |
Connecticut State Checkbook |
| 2020 |
Dept Of Energy & Environ Prot. |
Farmington Town Treasurer |
$4,113,229.72 |
Connecticut State Checkbook |
| 2022 |
Department Of Development Serv |
Sharp Training Inc |
$4,112,876.09 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Public Health |
City Of Hartford |
$4,112,087.59 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
Town Of Watertown |
$4,109,935.79 |
Connecticut State Checkbook |
| 2020 |
Mental Health & Addiction Serv |
Columbus House Inc |
$4,108,063.78 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Town Of Stonington |
$4,107,858.10 |
Connecticut State Checkbook |
| 2019 |
Office Of The State Treasurer |
First Quadrant Lp |
$4,107,702.00 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
Urban Engineers Inc |
$4,107,419.44 |
Connecticut State Checkbook |
| 2022 |
Dept Of Administrative Svcs |
Town Of Brookfield |
$4,107,093.02 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Transportation |
City Of New Haven |
$4,104,491.02 |
Connecticut State Checkbook |
| 2020 |
Office Of Policy & Management |
Town Of Manchester |
$4,103,976.51 |
Connecticut State Checkbook |
| 2023 |
Legislative Management |
Smg Corporate Services |
$4,103,605.80 |
Connecticut State Checkbook |
| 2019 |
Mental Health & Addiction Serv |
Goodwill Of Western And Northern Connecticut Inc |
$4,102,782.00 |
Connecticut State Checkbook |
| 2025 |
Dept Of Administrative Svcs |
Town Of Simsbury |
$4,101,570.00 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Children And Families |
Boys & Girls Village Inc |
$4,098,352.00 |
Connecticut State Checkbook |
| 2025 |
Office Of Early Childhood |
Connecticut Network For Children And Youth Inc |
$4,093,900.00 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Eversource Cl&P |
$4,088,722.04 |
Connecticut State Checkbook |
| 2020 |
Department Of Development Serv |
The West Haven Community House Association Inc |
$4,087,366.51 |
Connecticut State Checkbook |
| 2024 |
State Dept Of Education |
Ridgefield Town Treasurer |
$4,083,714.64 |
Connecticut State Checkbook |
| 2024 |
Dept Of Administrative Svcs |
Town Of East Hartford Town Treasurer |
$4,082,799.00 |
Connecticut State Checkbook |
| 2017 |
Office Of Policy & Management |
Town Of Montville |
$4,081,958.10 |
Connecticut State Checkbook |
| 2019 |
State Dept Of Education |
Town Of East Haddam |
$4,081,067.28 |
Connecticut State Checkbook |
| 2023 |
Office Of Policy & Management |
Wilton Town Treasurer |
$4,080,459.01 |
Connecticut State Checkbook |
| 2025 |
State Dept Of Education |
Town Of Beacon Falls |
$4,080,374.00 |
Connecticut State Checkbook |
| 2022 |
Dept. Of Transportation |
Aetna Bridge Company |
$4,078,808.48 |
Connecticut State Checkbook |
| 2021 |
Dept. Of Transportation |
New England Traffic Solutions |
$4,076,751.36 |
Connecticut State Checkbook |
| 2025 |
Das - Information Technology |
Verizon Wireless |
$4,076,392.88 |
Connecticut State Checkbook |
| 2019 |
Dept. Of Rehab. Services |
Agency On Aging Of South Central Connecticut |
$4,074,124.00 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Wellmore Inc |
$4,073,262.84 |
Connecticut State Checkbook |
| 2025 |
Dept. Of Transportation |
Brunalli Construction Company |
$4,073,004.04 |
Connecticut State Checkbook |
| 2024 |
Mental Health & Addiction Serv |
Dept Of Mental Health And Addiction Svcs Central Office |
$4,071,314.34 |
Connecticut State Checkbook |
| 2024 |
Department Of Development Serv |
Baroco Corp |
$4,071,275.51 |
Connecticut State Checkbook |
| 2023 |
Dept Of Administrative Svcs |
Region District 19 Treasurer |
$4,070,487.00 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
City Of Ansonia Town Treasurer |
$4,070,291.80 |
Connecticut State Checkbook |
| 2021 |
Department Of Housing |
Rms Congress Grant Corporation |
$4,070,000.00 |
Connecticut State Checkbook |
| 2023 |
Department Of Housing |
Lawnhill Phase 3 Limited Partnership |
$4,069,014.00 |
Connecticut State Checkbook |
| 2024 |
Dept. Of Transportation |
Cdm Smith Inc |
$4,068,236.20 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Beacon Falls |
$4,067,920.00 |
Connecticut State Checkbook |
| 2020 |
Office Of Early Childhood |
University Of Connecticut |
$4,066,020.45 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
Wsp Usa Solutions Inc |
$4,065,064.62 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
Wethersfield Town Treasurer |
$4,063,961.80 |
Connecticut State Checkbook |
| 2024 |
Office Of Policy & Management |
Town Of Windsor Locks |
$4,062,138.20 |
Connecticut State Checkbook |
| 2025 |
State Comptroller's Office |
Department Of Labor |
$4,061,170.72 |
Connecticut State Checkbook |
| 2021 |
Econ. & Community Development |
Waterbury Development Corporation |
$4,060,192.57 |
Connecticut State Checkbook |
| 2017 |
State Department Of Education |
Town Of Lisbon |
$4,058,665.93 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Transportation |
City Of Norwich |
$4,057,500.66 |
Connecticut State Checkbook |
| 2021 |
Office Of Policy & Management |
Town Of East Lyme |
$4,057,260.75 |
Connecticut State Checkbook |
| 2023 |
Dept. Of Social Services |
Connecticut Association For Community Action Inc |
$4,057,093.16 |
Connecticut State Checkbook |
| 2017 |
Department Of Transportation |
Cargill Inc -deicing Technology Business |
$4,056,543.49 |
Connecticut State Checkbook |
| 2019 |
Econ. & Community Development |
City Of Hartford |
$4,056,377.00 |
Connecticut State Checkbook |
| 2023 |
Mental Health & Addiction Serv |
Communicare Inc |
$4,055,974.00 |
Connecticut State Checkbook |
| 2023 |
Department Of Development Serv |
Sharp Training Inc |
$4,055,042.20 |
Connecticut State Checkbook |