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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61Undisclosed2 - 9 employeesGlastonbury, CTGrey Matter Technologies is an IT strategy consulting company. The Glastonbury, Connecticut-based company was founded in 1997. Their services include IT strategy consulting and cloud consulting & SI.Read More
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62Undisclosed50 - 249 employeesShelton, CTPrecision Computer Services is a midsize IT managed services and IT staff augmentation company in Shelton, Connecticut. The team specializes in IT managed services and IT staff augmentation.Read More
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63Undisclosed10 - 49 employeesHartford, CTTekcetera Inc. Is a cloud consulting & SI and IT managed services company launched in 2002. Their team specializes in cloud consulting & SI and IT managed services.Read More
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64Undisclosed2 - 9 employeesShelton, CTFounded in 2000, OutSecure Inc is a small Shelton, Connecticut-based Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.Read More
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65Undisclosed250 - 999 employeesShelton, CTSaisystems Technology is a Shelton, Connecticut-based IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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66Undisclosed10 - 49 employeesStamford, CTJANUS Associates, Inc. Is an IT managed services company. Based in Stamford, Connecticut, the agency was established in 1988. Their team focuses on IT managed services and IT strategy consulting.Read More
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67Undisclosed10 - 49 employeesNorwalk, CTTruOps Cyber Risk Management is a Cybersecurity and IT managed services company. Founded in 2019, their team offers Cybersecurity and IT managed services.Read More
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68Undisclosed2 - 9 employeesManchester, CTEncompass IT Solutions, LLC is a Cybersecurity and IT managed services company. Their team is headquartered in Manchester, Connecticut. The agency specializes in Cybersecurity and IT managed services.Read More
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69Undisclosed2 - 9 employeesStamford, CTImpetra Technology Solutions is a Cybersecurity and IT managed services company. They were established in 2016, and their services include Cybersecurity and IT managed services.Read More
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70Undisclosed50 - 249 employeesRocky Hill, CTADNET Technologies is an IT managed services company established in 1991. The team provides IT managed services and cloud consulting & SI.Read More
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71Undisclosed50 - 249 employeesBerlin, CTCybersecurity and IT managed services company ComTec Solutions was launched in 1995. The team focuses on Cybersecurity and IT managed services and is in Rochester, New York and Berlin, Connecticut.Read More
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72Undisclosed2 - 9 employeesBridgeport, CTHeadquartered in Bridgeport, Connecticut, Evocorp LLC is a Cybersecurity and IT managed services company. They focus on Cybersecurity and IT managed services and were launched in 2019.Read More
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73Undisclosed10 - 49 employeesRidgefield, CTCorCystems Managed IT Services, a small Cybersecurity company, is based in Ridgefield, Connecticut. Their services include Cybersecurity and IT managed services.Read More
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74Undisclosed10 - 49 employeesMilford, CTSintesys is a Polígono de Pocomaco, Spain-based IT strategy consulting company. They specialize in IT strategy consulting and cloud consulting & SI and were launched in 2024.Read More
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75Undisclosed2 - 9 employeesMilford, CTFounded in 2005, Harmony Software Solutions, LLC is a big data analytics company. In Milford, Connecticut, the team provides BI & big data consulting & SI and cloud consulting & SI.Read More
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76Undisclosed1,000 - 9,999 employeesStamford, CTRizing is a cloud consulting & SI company. Located in Stamford, Connecticut, the company provides cloud consulting & SI and HR Consulting.Read More
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77Undisclosed50 - 249 employeesNorwalk, CTCybersecurity company SDG Corporation is based in Norwalk, Connecticut and Noida, India. Their services include Cybersecurity.Read More
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78Undisclosed10 - 49 employeesHamden, CTAlphaTech Innovation is a Hamden, Connecticut-based Cybersecurity company. Their services include Cybersecurity.Read More
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79Undisclosed10 - 49 employeesStamford, CTCybersecurity company Acture Solutions focuses on Cybersecurity. They were established in 1984.Read More
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80Undisclosed2 - 9 employeesAvon, CTBased in Avon, Connecticut, Sund Technologies, LLC is a small IT strategy consulting company. Their services include IT strategy consulting and Cybersecurity.Read More
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81Undisclosed10 - 49 employeesCromwell, CTBased in Cromwell, Connecticut, The Computer Company, Inc. Is an IT strategy consulting company. The team provides IT strategy consulting and Cybersecurity.Read More
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82Undisclosed50 - 249 employeesWilton, CTPCR Financial Aggregation is a big data company founded in 2002. The team focuses on BI & big data consulting & SI and IT strategy consulting and is located in Wilton, Connecticut.Read More
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83Undisclosed10 - 49 employeesHartford, CTConnecticut Data Collaborative is a business intelligence company. Based in Hartford, Connecticut, the agency was founded in 2011. Their services include BI & big data consulting & SI.Read More
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84Undisclosed10 - 49 employeesSouth Windsor, CTAdvanced Technology Consulting (ATC), a Cybersecurity company, specializes in Cybersecurity and cloud consulting & SI. The company is based in Liberty Township, Ohio and South Windsor, Connecticut.Read More
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85Undisclosed10 - 49 employeesEast Hartford, CTTriple Helix Corporation is an ERP consulting and SI company founded in 2004. Located in East Hartford, Connecticut, the team provides ERP consulting and SI and Custom Software Development.Read More
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86Undisclosed2 - 9 employeesStamford, CTEstablished in 1992, AtlanticZone.com is an IT strategy consulting company. Headquartered in Stamford, Connecticut, the team focuses on IT strategy consulting and IT managed services.Read More
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87Undisclosed2 - 9 employeesNorth Stonington, CTFounded in 2021, Modern Age Marketing LLC is a SEO agency. The company offers Search Engine Optimization and IT strategy consulting.Read More
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88Undisclosed2 - 9 employeesRidgefield, CTBarnet Associates is a small Ridgefield, Connecticut-based CRM consulting and SI company. The team offers CRM consulting and SI and Custom Software Development.Read More
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89Undisclosed2 - 9 employeesNew Haven, CTCool Nerd SAM is a small Wilmington, Delaware-based CRM consulting and SI company. Their services include CRM consulting and SI and SMS Marketing.Read More
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90Undisclosed2 - 9 employeesBloomfield, CTCode Blue is an IT strategy consulting company established in 2022. The company provides IT strategy consulting and BI & big data consulting & SI, and is small.Read More
Industries
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