| United Technologies Corp | RTX Corporation | state | 2014 | $400,000,000 | | MEGADEAL  |
| Schupp & Grochmal, LLC | Schupp & Grochmal | state | 2007 | $313,750,000 | | tax credit/rebate |
| Schupp & Grochmal, LLC | Schupp & Grochmal | state | 2007 | $313,750,000 | | MEGADEAL |
| Jackson Laboratory | Jackson Laboratory | state | 2011 | $291,000,000 | | MEGADEAL |
| Lockheed Martin | Lockheed Martin | state | 2016 | $220,000,000 | | MEGADEAL |
| Zurich Reinsurance Centre Holdings Inc. | SCOR | state | 1997 | $190,000,000 | | MEGADEAL |
| Building and Land Technology | | multiple | 2010 | $153,000,000 | | MEGADEAL |
| Swiss Bank Corp. (now UBS) | UBS | multiple | 1994 | $150,000,000 | | MEGADEAL |
| Dowling & Partners | Dowling & Partners | state | 2001 | $119,275,000 | | tax credit/rebate |
| Dowling & Partners | Dowling & Partners | state | 2001 | $119,275,000 | | MEGADEAL |
| Bridgewater Associates | Bridgewater Associates | state | 2012 | $115,000,000 | | MEGADEAL |
| Greenwich Capital Markets Inc. n/k/a RBS Securities Inc. | NatWest Group PLC | state | 2007 | $100,000,000 | | tax credit/rebate |
| Royal Bank of Scotland (RBS Greenwich Capital) | NatWest Group PLC | state | 2005 | $100,000,000 | | MEGADEAL |
| Starwood Hotels and Resorts | Marriott International | state | 2009 | $89,500,000 | | MEGADEAL (Archived) |
| Advantage Partners Capital CTFund VI | | state | 2021 | $87,150,000 | | tax credit/rebate |
| Lockheed Martin | Lockheed Martin | state | 2016 | $80,000,000 | | tax credit/rebate |
| Lockheed Martin | Lockheed Martin | state | 2017 | $80,000,000 | | tax credit/rebate |
| ESPN (owned by Walt Disney Co.) | Walt Disney | state | 2000 | $75,000,000 | | MEGADEAL (Archived) |
| Starwood Hotel & Resorts | Marriott International | state | 2010 | $75,000,000 | | tax credit/rebate |
| Northington Partners | Northington Partners | state | 2001 | $75,000,000 | | tax credit/rebate |
| Northington Partners | Northington Partners | state | 2001 | $75,000,000 | | MEGADEAL (Archived) |
| Sikorsky | Lockheed Martin | state | 2022 | $75,000,000 | | MEGADEAL (Archived) |
| CIGNA | Cigna | state | 2012 | $71,000,000 | | tax credit/rebate |
| Pfizer | Pfizer | multiple | 1998 | $60,000,000 | | MEGADEAL (Archived) |
| Alexion Pharmaceuticals | AstraZeneca | state | 2012 | $51,000,000 | | tax credit/rebate |
| EDAC Technologies Corporation* | | state | 2015 | $48,000,000 | | grant/loan hybrid program |
| UBS Warburg | UBS | state | 2001 | $46,000,000 | | grant/loan hybrid program |
| Lockheed Martin | Lockheed Martin | state | 2022 | $45,000,000 | | tax credit/rebate |
| Stonehenge Capital Fund Connecticut VI, LLC | | state | 2021 | $42,100,000 | | tax credit/rebate |
| Diageo North America Inc. | Diageo | state | 2004 | $40,000,000 | | tax credit/rebate |
| Conning & Company | | state | 1999 | $37,491,119 | | tax credit/rebate |
| Connecticut Growth Fund II, Limited Partnership | | state | 2016 | $35,265,000 | | tax credit/rebate |
| Blue Sky Studios, Inc. | Walt Disney | state | 2021 | $32,406,807 | | tax credit/rebate |
| Blue Sky Studios, Inc. | Walt Disney | state | 2020 | $32,039,695 | | tax credit/rebate |
| Bridgewater Associates, LP | Bridgewater Associates | state | 2016 | $30,000,000 | | tax credit/rebate |
| Blue Sky Studios | Walt Disney | state | 2018 | $27,570,980 | | tax credit/rebate |
| NBC Sports Network, LP | Comcast | state | 2023 | $26,720,619 | | tax credit/rebate |
| Alexion Pharmaceuticals, Inc | AstraZeneca | state | 2013 | $26,000,000 | | grant/loan hybrid program |
| Blue Sky Studios | Walt Disney | state | 2017 | $25,911,607 | | tax credit/rebate |
| Petro Connecticut Fund II, LLC | | state | 2021 | $25,750,000 | | tax credit/rebate |
| Alexion Pharmaceuticals, Inc. | AstraZeneca | state | 2016 | $25,000,000 | | tax credit/rebate |
| Enhanced Capital Connecticut Fund VI, LLC - 2022 | | state | 2022 | $25,000,000 | | tax credit/rebate |
| CareCentrix | | state | 2012 | $24,000,000 | | grant/loan hybrid program |
| CareCentrix, Inc. | | state | 2014 | $24,000,000 | | grant/loan hybrid program |
| NBCUniversal Media, LLC | Comcast | state | 2013 | $23,545,581 | | tax credit/rebate |
| Nbc Sports Network, Lp | Comcast | state | 2020 | $22,815,904 | | tax credit/rebate |
| Enhanced Capital Connecticut Fund V, LLC | | state | 2016 | $22,151,629 | | tax credit/rebate |
| Nbc Sports Network, Lp | Comcast | state | 2022 | $21,600,387 | | tax credit/rebate |
| Cigna Health & Life Insurance Company | Cigna | state | 2012 | $21,000,000 | | grant/loan hybrid program |
| Stamford Media Center Productions, LLC | | state | 2018 | $20,971,784 | | tax credit/rebate |
| NBC Sports Network, LP | Comcast | state | 2018 | $20,904,653 | | tax credit/rebate |
| NBC Sports Network, LP | Comcast | state | 2017 | $20,360,729 | | tax credit/rebate |
| Lowe's Home Centers Inc. | Lowe's | state | 2005 | $20,000,000 | | tax credit/rebate |
| Gartner Inc. | Gartner | state | 2011 | $20,000,000 | | tax credit/rebate |
| NBC Sports Network, LP | Comcast | state | 2012 | $20,000,000 | | grant/loan hybrid program |
| UBS AG - Acting through its Stamford Branch | UBS | state | 2012 | $20,000,000 | | grant/loan hybrid program |
| Dollar Tree Distribution, Inc. | Dollar Tree | state | 2012 | $20,000,000 | | tax credit/rebate |
| Starwood Hotel & Resorts Worldwide, Inc. | Marriott International | state | 2014 | $20,000,000 | | tax credit/rebate |
| Synchrony Bank | Synchrony Financial | state | 2016 | $20,000,000 | | grant/loan hybrid program |
| FuelCell Energy, Inc. | FuelCell Energy | state | 2016 | $20,000,000 | | grant/loan hybrid program |
| United Technologies Corporation | RTX Corporation | state | 2015 | $20,000,000 | | tax credit/rebate |
| United Technologies Corporation | RTX Corporation | state | 2016 | $20,000,000 | | tax credit/rebate |
| United Technologies Corporation | RTX Corporation | state | 2017 | $20,000,000 | | tax credit/rebate |
| United Technologies Corporation | RTX Corporation | state | 2018 | $20,000,000 | | tax credit/rebate |
| Fed Ex | FedEx | state | 2015 | $20,000,000 | | tax credit/rebate |
| Electric Boat | General Dynamics | state | 2018 | $20,000,000 | | tax credit/rebate |
| Enhanced Capital Connecticut Fund VI, LLC - 2021 | | state | 2021 | $20,000,000 | | tax credit/rebate |
| General Re Corporation | Berkshire Hathaway | state | 2010 | $19,500,000 | | tax credit/rebate |
| Stamford Media Center Productions, LLC | | state | 2017 | $19,121,321 | | tax credit/rebate |
| ESPN | Walt Disney | state | 2012 | $18,700,000 | | grant/loan hybrid program |
| Higher One, Inc. | Providence Equity Partners | state | 2011 | $18,500,000 | | tax credit/rebate |
| 101 College Street, LLC | | state | 2021 | $18,500,000 | | tax credit |
| ESPN Enterprises, Inc. | Walt Disney | state | 2022 | $18,298,498 | | tax credit/rebate |
| Blue Sky Studios Inc. | Walt Disney | state | 2008 | $18,000,000 | | tax credit/rebate |
| Infosys Limited | Infosys Limited | state | 2019 | $18,000,000 | | grant |
| Blue Sky Studios, Inc. | Walt Disney | state | 2021 | $17,696,893 | | tax credit/rebate |
| Stonehenge Capital Fund Connecticut V, LLC | | state | 2016 | $17,308,088 | | tax credit/rebate |
| Stamford Media Center Productions, LLC | | state | 2013 | $16,844,446 | | tax credit/rebate |
| Pitney Bowes, Inc. | Pitney Bowes | state | 2015 | $16,000,000 | | grant/loan hybrid program |
| Praxair, Inc. | Linde | state | 2016 | $16,000,000 | | tax credit/rebate |
| ESPN Enterprises, Inc. | Walt Disney | state | 2023 | $15,380,169 | | tax credit/rebate |
| Stamford Media Center Productions, LLC | | state | 2014 | $15,258,377 | | tax credit/rebate |
| Electric Boat Corporation | General Dynamics | state | 2011 | $15,000,000 | | grant/loan hybrid program |
| Blue Sky Studios | Walt Disney | state | 2012 | $15,000,000 | | tax credit/rebate |
| Blue Sky Studios | Walt Disney | state | 2010 | $15,000,000 | | tax credit/rebate |
| Blue Sky Studios | Walt Disney | state | 2011 | $15,000,000 | | tax credit/rebate |
| Blue Sky Studios | Walt Disney | state | 2013 | $15,000,000 | | tax credit/rebate |
| Blue Sky Studios | Walt Disney | state | 2014 | $15,000,000 | | tax credit/rebate |
| HomeServe USA Corp. | Brookfield Corporation | state | 2013 | $15,000,000 | | tax credit/rebate |
| Conair Corporation | Conair | state | 2016 | $15,000,000 | | tax credit/rebate |
| Indeed, Inc. | | state | 2017 | $15,000,000 | | tax credit/rebate |
| Charter Communications Holding Co. | Charter Communications | state | 2019 | $15,000,000 | | tax credit/rebate |
| Amazon.com Services LLC | Amazon.com | state | 2021 | $15,000,000 | | tax credit |
| Deloitte Services, LP | Deloitte | state | 2016 | $14,500,000 | | grant/loan hybrid program |
| ESPN, Inc. DC-2 Phase I | Walt Disney | state | 2013 | $14,430,660 | | tax credit/rebate |
| Asml Us, LLC | ASML | state | 2018 | $14,000,000 | | grant |
| Boehringer Ingelheim USA Corporation & Boehringer Ingelheim Pharmaceuticals, Inc. | Boehringer Ingelheim | state | 2020 | $14,000,000 | | tax credit/rebate |
| ESPN, Inc. DC-2 Phase 3 | Walt Disney | state | 2016 | $13,938,062 | | tax credit/rebate |
| ESPN/Starwave Partners G.P. | Walt Disney | state | 2012 | $13,437,607 | | tax credit/rebate |
| World Wrestling Entertainment, Inc. | World Wrestling Entertainment | state | 2018 | $13,296,471 | | tax credit/rebate |
| Massachusetts Mutual Life Insurance Company | Massachusetts Mutual Life Insurance | state | 2013 | $13,000,000 | | tax credit/rebate |
