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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$5,000+50 - 249 employeesGaithersburg, MDRead More
DesignDATA is an IT managed services company. Established in 1979, the midsize agency is headquartered in Gaithersburg, Maryland and Washington, District of Columbia. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, and Cybersecurity.
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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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31Undisclosed50 - 249 employeesMilford, CTAquinas Consulting is a Milford, Connecticut-based IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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32$1,000+10 - 49 employeesGreenwich, CTLighthouse Technology Partners is an IT managed services company founded in 1948. The team specializes in IT managed services and cloud consulting & SI.Read More
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33$1,000+10 - 49 employeesCheshire, CTSpectrum Virtual, a cloud consulting & SI company, was established in 2013. The team specializes in cloud consulting & SI and unified communications consulting & SI.Read More
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34Undisclosed2 - 9 employeesShelton, CTTangible Analytics Consulting is a small CRM consulting and SI company established in 2016. Their team focuses on CRM consulting and SI and BI & big data consulting & SI.Read More
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35$1,000+250 - 999 employeesStamford, CTAspire IT Services Partner is a midsize IT managed services company founded in 2002. Their team provides IT managed services and IT staff augmentation.Read More
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36Undisclosed2 - 9 employeesWallingford, CTMega Information Technology is a Wallingford, Connecticut-based IT strategy consulting company. The small company was established in 2023. Their services include IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, and more.Read More
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37Undisclosed2 - 9 employeesWest Hartford, CTMrkt insight, a small SEO services firm, is headquartered in West Hartford, Connecticut and Avon, Connecticut. They provide search engine optimization, web design, marketing strategy, digital strategy, and more and were launched in 2024.Read More
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38Undisclosed2 - 9 employeesBristol, CTCRM consulting and SI company Quad4Cloud was launched in 2022. The firm offers CRM consulting and SI and Custom Software Development, and is small.Read More
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39Undisclosed10 - 49 employeesWaterbury, CTCorporate InfoManagement, Inc. Is a Waterbury, Connecticut-based software development company. Their services include Custom Software Development and IT managed services.Read More
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40$5,000+2 - 9 employeesStamford, CTCognivo, a big data analytics company and software development firm, was founded in 2017. The agency provides BI & big data consulting & SI and Custom Software Development.Read More
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41$100,000+50 - 249 employeesWestport, CTEstablished in 2010, Zaelab is an e-commerce development company. The midsize team specializes in E-Commerce Development and cloud consulting & SI.Read More
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42$1,000+10 - 49 employeesWest Hartford, CTCRM consulting and SI company RevSolutions was established in 2023. The team specializes in CRM consulting and SI and IT managed services.Read More
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43$10,000+50 - 249 employeesNew Haven, CTSphereGen is a software development company. The team is in New Haven, Connecticut and Pune, India, and their services include Custom Software Development and AR/VR development.Read More
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44Undisclosed10 - 49 employeesRidgefield, CTMaxQ Technologies is a small Ridgefield, Connecticut-based CRM consulting and SI company. The team focuses on CRM consulting and SI and other IT consulting and SI.Read More
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45$5,000+10 - 49 employeesEast Hartford, CTHeadquartered in East Hartford, Connecticut, TAB Computer Systems, Inc. Is a small IT managed services company. Their services include IT managed services and IT strategy consulting.Read More
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46Undisclosed10 - 49 employeesMilford, CTIn Milford, Connecticut, TBNG Consulting is a custom software development company. Their services include Custom Software Development and IT managed services.Read More
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47Undisclosed2 - 9 employeesHartford, CTEVERNET, an IT managed services and IT strategy consulting company, is located in Hartford, Connecticut. They provide IT managed services and IT strategy consulting and were founded in 2007.Read More
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48Undisclosed10 - 49 employeesHartford, CTIT Direct, an IT managed services and IT strategy consulting company, is located in Hartford, Connecticut. The team focuses on IT managed services and IT strategy consulting.Read More
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49Undisclosed10 - 49 employeesGlastonbury, CTKelser Corporation is a small IT managed services company in Glastonbury, Connecticut. Their services include IT managed services and IT strategy consulting.Read More
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50Undisclosed2 - 9 employeesProspect, CTSand Tech Computer Consulting is a Prospect, Connecticut-based IT managed services company. Their services include IT managed services and Cybersecurity.Read More
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51Undisclosed10 - 49 employeesSouthington, CTEstablished in 1983, Connecticut Computer Service is a small Southington, Connecticut-based IT managed services company. Their team provides IT managed services and IT strategy consulting.Read More
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52Undisclosed2 - 9 employeesEast Hampton, CTLocated in East Hampton, Connecticut, Now IT Works is a small IT managed services and IT strategy consulting company. Their services include IT managed services and IT strategy consulting.Read More
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53Undisclosed2 - 9 employeesNorth Haven, CTRvi Computers is an IT managed services company. Their small team is based in North Haven, Connecticut. Their team specializes in IT managed services and IT strategy consulting.Read More
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54Undisclosed2 - 9 employeesStratford, CTAsh Creek Enterprises is an IT managed services company. Headquartered in Stratford, Connecticut, their team provides IT managed services and IT strategy consulting.Read More
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55Undisclosed2 - 9 employeesBristol, CTComputer Development Systems is an IT managed services company established in 1981. The team offers IT managed services and IT strategy consulting.Read More
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56Undisclosed10 - 49 employeesHartford, CTNutmeg Consulting is a Hartford, Connecticut-based IT strategy consulting company. They focus on IT strategy consulting and Application Management & Support and were established in 2003.Read More
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57Undisclosed2 - 9 employeesShelton, CTNETiMAGE, a cloud consulting & SI and IT strategy consulting company, is located in Shelton, Connecticut. The team provides cloud consulting & SI and IT strategy consulting.Read More
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58Undisclosed10 - 49 employeesStamford, CTNetology, LLC is a cloud consulting & SI and IT strategy consulting company established in 2002. The team offers cloud consulting & SI and IT strategy consulting.Read More
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59Undisclosed2 - 9 employeesWethersfield, CTConnecticut IT Solutions is a small Wethersfield, Connecticut-based cloud consulting & SI and IT strategy consulting company. Their services include cloud consulting & SI and IT strategy consulting.Read More
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60Undisclosed10 - 49 employeesRocky Hill, CTEndecom Business I.T. Solutions, an IT managed services and IT strategy consulting company, is in Rocky Hill, Connecticut. The team provides IT managed services and IT strategy consulting.Read More
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