Top 100 IT Services Companies in Connecticut
The Best of December 2025Looking for a top IT services company in Connecticut?
For your company to grow, it is essential to choose the best technology. Hiring an innovative IT services provider is the easiest way to ensure that you are making the best use of technology, increasing sales, and staying one step ahead of the competition.
To assist you in your search for a partner, we’ve compiled this list of the top IT consultants in Connecticut. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Connecticut IT Companies
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$10,000+50 - 249 employeesL'viv, UkraineRead More
Founded in 2019, Uinno is an artificial intelligence firm. The midsize team specializes in Artificial Intelligence, Custom Software Development, Low/No Code Development, UX/UI Design, and more. The company is based in L'viv, Ukraine; Tallinn, Estonia; Kingston upon Thames, England and Zaporizhzhia, Ukraine.
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$1,000+50 - 249 employeesNaperville, ILBetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.Read More
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1$1,000+10 - 49 employeesNaugatuck, CTRead More
NSI is a small IT managed services company established in 1985. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, other IT consulting and SI, and more. The agency is headquartered in Naugatuck, Connecticut.
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2Undisclosed10 - 49 employeesHarwinton, CTRead More
CAL Business Solutions is a consultancy based in Harwinton, Conn. with a second office in New York City. Founded in 1982, the team of 32 specializes in ERP consulting and system integration services for mid-sized companies in the consumer industry.
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Frederick BlockIndustries
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3$10,000+50 - 249 employeesFairfield, CTMidsize software development company ObjectStyle, is located in Fairfield, Connecticut; Fairfield, Connecticut and Warszawa, Poland. They specialize in Custom Software Development, Enterprise App Modernization, Microservices Architecture Services, Sports Marketing, and more and were founded in 2002.Read More
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NHLIndustries
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4$10,000+250 - 999 employeesSouth Windsor, CTVLink, a custom software development firm, is based in South Windsor, Connecticut; Framingham, Massachusetts; Jakarta, Indonesia and Gurugram, India. They focus on Custom Software Development, Mobile App Development, Artificial Intelligence, and Cybersecurity and were founded in 2006.Read More
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ArambhIndustries
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5$5,000+10 - 49 employeesTrumbull, CTKyber Security is a Cybersecurity company launched in 2017. They are based in Trumbull, Connecticut and have a small team. The agency provides Cybersecurity, IT managed services, and Compliance Consulting.Read More
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6$25,000+10 - 49 employeesNew Haven, CTHarris Digital, an e-commerce development company, is based in New Haven, Connecticut and Fort Atkinson, Wisconsin. The small team focuses on E-Commerce Development, Digital Strategy, UX/UI Design, ERP consulting and SI, and more. The company was established in 2006.Read More
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7Undisclosed50 - 249 employeesShelton, CTRead More
Launched in 2000, Flagship Networks, Inc. Is an IT managed services company. They are based in Shelton, Connecticut and have a midsize team. The firm specializes in IT managed services, cybersecurity, IT strategy consulting, cloud consulting & SI, and more.
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8$5,000+10 - 49 employeesStamford, CTRead More
U.S. Computer Connection is an IT managed services company launched in 1987. They are based in Stamford, Connecticut and have a small team. Their services include IT managed services, cybersecurity, and IT strategy consulting.
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9Undisclosed2 - 9 employeesNew Britain, CTIT managed services company Arsenal Computing LLC was established in 2021. The agency specializes in IT managed services, IT strategy consulting, cybersecurity, web development, and more and has a small team. The agency is headquartered in New Britain, Connecticut.Read More
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10$1,000+2 - 9 employeesWest Hartford, CTFounded in 1995, Universal Connectivity is a cloud consulting & SI company. The team offers cloud consulting & SI and unified communications consulting & SI.Read More
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11Undisclosed50 - 249 employeesDanbury, CTIT managed services company Network Support Co is headquartered in Danbury, Connecticut and Orlando, Florida. They provide IT managed services and Cybersecurity.Read More
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12$5,000+10 - 49 employeesEast Windsor, CTHuntington Technology is a small IT managed services company. Founded in 2001, the team specializes in IT managed services and Cybersecurity.Read More
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13Undisclosed10 - 49 employeesMeriden, CTUNAPEN, Inc., an IT managed services company, was launched in 1991. The agency provides IT managed services and Custom Software Development, and is small.Read More
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14$25,000+10 - 49 employeesStamford, CTNexVue is an ERP consulting and SI company. The team focuses on ERP consulting and SI and BI & big data consulting & SI and is located in Stamford, Connecticut.Read More
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15$5,000+2 - 9 employeesSouthington, CTP2 Automation, LLC, a CRM consulting and SI company, is headquartered in Southington, Connecticut. Established in 2011, the team specializes in CRM consulting and SI and Custom Software Development.Read More
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16Undisclosed50 - 249 employeesRocky Hill, CTFounded in 1985, Tallan, a midsize IT strategy consulting company, is based in Rocky Hill, Connecticut. Their services include IT strategy consulting and ERP consulting and SI.Read More
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17$5,000+10 - 49 employeesWindsor, CTCooperative Systems is an IT managed services company. Founded in 1993, the team focuses on IT managed services and Cybersecurity.Read More
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18Undisclosed10 - 49 employeesRocky Hill, CTSystems Integration, Inc. Is a Rocky Hill, Connecticut-based IT strategy consulting company. They focus on IT strategy consulting and IT managed services and were founded in 1992.Read More
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19Undisclosed10 - 49 employeesFarmington, CTCRM consulting and SI company ITWorx is in Cairo, Egypt and Farmington, Connecticut. The team provides CRM consulting and SI and ERP consulting and SI.Read More
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20Undisclosed50 - 249 employeesWest Hartford, CTVIAcode, a cloud consulting & SI and IT managed services company, was established in 2001. The agency provides cloud consulting & SI and IT managed services, and is midsize.Read More
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21Undisclosed10 - 49 employeesWallingford, CTIT managed services company ASG Information Technologies is located in Wallingford, Connecticut. They offer IT managed services and Cybersecurity.Read More
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22Undisclosed50 - 249 employeesTrumbull, CTCorserva is an IT strategy consulting company founded in 1985. The midsize team provides IT strategy consulting and cloud consulting & SI.Read More
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23Undisclosed250 - 999 employeesStamford, CTSoftdel is a midsize IT strategy consulting and IT managed services company headquartered in Stamford, Connecticut. The team provides IT strategy consulting and IT managed services.Read More
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24$1,000+10 - 49 employeesHartford, CTCommprise is an IT managed services company. They were founded in 2010, and their services include IT managed services and Cybersecurity.Read More
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25Undisclosed10 - 49 employeesMilford, CTFounded in 2005, Vancord is a small Milford, Connecticut-based Cybersecurity and IT managed services company. Their team offers Cybersecurity and IT managed services.Read More
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26Undisclosed2 - 9 employeesCheshire, CTVista IT Solutions is an IT managed services company. Headquartered in Cheshire, Connecticut, the agency provides IT managed services and IT strategy consulting.Read More
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27Undisclosed10 - 49 employeesNorwich, CTEstablished in 2003, I-M Technology, LLC, a small IT managed services company, is located in Norwich, Connecticut. Their team offers IT managed services and Cybersecurity.Read More
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28Undisclosed2 - 9 employeesVernon, CTRAD Computing is an IT strategy consulting company. The Vernon, Connecticut-based company offers IT strategy consulting and cloud consulting & SI.Read More
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29Undisclosed50 - 249 employeesWaterbury, CTSoftware development firm and IT managed services company Quality Data Service Inc is located in Waterbury, Connecticut. They offer Custom Software Development and IT managed services.Read More
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30$10,000+10 - 49 employeesWestport, CTPylon Technology is a small IT strategy consulting company located in Westport, Connecticut and Greenville, South Carolina. The team provides IT strategy consulting and IT managed services.Read More
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