Top 100 IT Services Companies in Seattle
The Best of December 2025Looking for a top IT services company in Seattle?
IT services set the pace of how fast your company will scale. With a good IT infrastructure in place, you can save time and resources, secure your data and assets, and improve your customer service. It may seem costly at first glance, but the ROI is more than worth it.
Get in touch with Seattle’s leading IT services companies on The Manifest. Cut through the options as you browse through these service providers’ client reviews, awards, and profiles.
List of the Best Seattle 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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91$5,000+50 - 249 employeesRedmond, WALocated in Redmond, Washington and Noida, India, UnifyCloud LLC is an Enterprise App Modernization company. The team offers Enterprise App Modernization and IT strategy consulting.Read More
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92Undisclosed2 - 9 employeesSeattle, WASilo IT Group dba Helpdesk.Live, a small IT managed services company, is located in Seattle, Washington. The team offers IT managed services and Custom Software Development.Read More
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93$1,000+10 - 49 employeesBellevue, WAMerjTech is an IT strategy consulting company. In Bellevue, Washington, their team offers IT strategy consulting and cloud consulting & SI.Read More
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94$50,000+50 - 249 employeesWoodinville, WAEstablished in 1996, Redapt is a cloud consulting & SI company. The agency focuses on cloud consulting & SI and BI & big data consulting & SI, and is midsize.Read More
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95$1,000+2 - 9 employeesSeattle, WARead More
Archimedes Consulting is an IT strategy consulting company established in 2021. They are headquartered in Seattle, Washington and have a small team. Their services include IT strategy consulting, other IT consulting and SI, and business consulting.
Clients
https://vendor.clutch.co/vendor/dashboard/portfolio/2189228Industries
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96Undisclosed50 - 249 employeesSeattle, WALogic20/20, an IT strategy consulting company, was founded in 2005. They provides IT strategy consulting and Artificial Intelligence.Read More
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97$10,000+50 - 249 employeesSeattle, WADevblock is a software development company. Based in Seattle, Washington and Ho Chi Minh, Vietnam, the company offers Custom Software Development and Web Development.Read More
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98$1,000+10 - 49 employeesSeattle, WAResponza, an IT managed services company, is located in Seattle, Washington. They offer IT managed services and Back Office Outsourcing and were established in 2009.Read More
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99$1,000+2 - 9 employeesSeattle, WAZaifworks LLC is an Enterprise App Modernization and IT managed services company established in 2004. The team offers Enterprise App Modernization and IT managed services.Read More
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100Undisclosed1,000 - 9,999 employeesNew York, NYMarket Research company Material focuses on Market Research and Marketing Strategy. They were launched in 1973.Read More
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101$25,000+250 - 999 employeesRedmond, WABased in Redmond, Washington and Virgin Islands (U.S.), Plain Concepts is an AI firm. They focus on Artificial Intelligence and BI & big data consulting & SI and were established in 2006.Read More
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102$10,000+50 - 249 employeesChicago, ILDMC, Inc., a custom software development firm, is based in Chicago, Illinois and Somerville, Massachusetts. The team provides Custom Software Development and CRM consulting and SI.Read More
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3MIndustries
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103Undisclosed1,000 - 9,999 employeesBothell, WAILink Digital is an AI Consulting company. They are in Bothell, Washington. Their team provides AI Consulting and Generative AI.Read More
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104$1,000+10 - 49 employeesLynnwood, WATechlusion LLC is a cloud consulting & SI company. Their small team is in Lynnwood, Washington and Ahmedabad, India. Their services include cloud consulting & SI and IT staff augmentation.Read More
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105$5,000+50 - 249 employeesRedmond, WAFounded in 2010, Divensi Inc, a midsize IT staff augmentation company, is based in Redmond, Washington and Bhubaneswar, India. Their team focuses on IT staff augmentation and IT managed services.Read More
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106$1,000+2 - 9 employeesBellevue, WAOmnia Digital Media is an IT managed services company. They offer IT managed services and Web Design and are located in Bellevue, Washington.Read More
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107$5,000+50 - 249 employeesSeattle, WAMidsize IT staff augmentation company South Geeks, is located in Seattle, Washington and ABA, Argentina. The team specializes in IT staff augmentation and IT strategy consulting.Read More
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108$10,000+10 - 49 employeesSeattle, WAIT staff augmentation company DEV.co is in Seattle, Washington and Casper, Wyoming. They provide IT staff augmentation and Web Design and were founded in 2008.Read More
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109$5,000+10 - 49 employeesKirkland, WAMeydenbauer Partners, an IT strategy consulting company, is based in Kirkland, Washington. They specialize in IT strategy consulting and CRM consulting and SI.Read More
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110$50,000+50 - 249 employeesSeattle, WACloud consulting & SI company GenUI was launched in 2009. The midsize team focuses on cloud consulting & SI and Mobile App Development.Read More
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111$25,000+50 - 249 employeesSeattle, WAAssemble is a midsize e-commerce development company based in Seattle, Washington. Their services include E-Commerce Development and Custom Software Development.Read More
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112$1,000+10 - 49 employeesSeattle, WASynergy Business Solutions, an ERP consulting and SI company, offers ERP consulting and SI. The firm is in Portland, Oregon and Seattle, Washington.Read More
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113Undisclosed10,000+ employeesSeattle, WAAvanade is a CRM consulting and SI company. Located in Seattle, Washington, the team provides CRM consulting and SI and cloud consulting & SI.Read More
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114Undisclosed1,000 - 9,999 employeesSeattle, WARead More
Slalom Consulting is a Seattle, Washington-based CRM consulting and SI company. The large team specializes in CRM consulting and SI, ERP consulting and SI, ECM consulting and SI, unified communications consulting & SI, and more and was founded in 2001.
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115Undisclosed50 - 249 employeesSeattle, WANexTec Group is a CRM consulting and SI company headquartered in Seattle, Washington. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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116Undisclosed10 - 49 employeesRenton, WAThe Resource Group is a CRM consulting and SI company. Based in Renton, Washington, the agency was established in 1988. Their team specializes in CRM consulting and SI and ERP consulting and SI.Read More
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117$5,000+50 - 249 employeesSeattle, WAIOActive is a Cybersecurity company. Located in Seattle, Washington and London, England, the agency was launched in 1998. Their team focuses on Cybersecurity.Read More
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118$5,000+1,000 - 9,999 employeesSan Francisco, CAFounded in 1971, Merkle is a large CRM consulting and SI company. Their team focuses on CRM consulting and SI and Digital Strategy.Read More
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DellIndustries
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119Undisclosed10 - 49 employeesSeattle, WAMaxwell IT, an IT strategy consulting company, provides IT strategy consulting and IT managed services. The agency is based in Seattle, Washington and Portland, Oregon.Read More
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120Undisclosed250 - 999 employeesSeattle, WAPremise is an IT strategy consulting company. Launched in 2012, the firm provides IT strategy consulting and Artificial Intelligence.Read More
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