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.
Industries
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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
Industries
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331Undisclosed2 - 9 employeesTacoma, WALaunched in 2015, Spot Tech, Inc. Is a Cybersecurity company. The team provides Cybersecurity and cloud consulting & SI.Read More
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332Undisclosed10 - 49 employeesLakewood, WACloud consulting & SI company Graemouse Technologies, Inc offers cloud consulting & SI and IT managed services. They are headquartered in Lakewood, Washington.Read More
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333Undisclosed10 - 49 employeesSeattle, WADefenseStorm is a Cybersecurity company. The company is based in Alpharetta, Georgia and Seattle, Washington. Their team focuses on Cybersecurity.Read More
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334Undisclosed50 - 249 employeesBellevue, WADomain 6 Inc. Is an IT managed services company founded in 2016. Their team focuses on IT managed services and CRM consulting and SI.Read More
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335Undisclosed2 - 9 employeesBothell, WAWhalen-Frankton Consulting is a big data analytics company. They are in Bothell, Washington, and their services include BI & big data consulting & SI and Recruiting.Read More
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336$1,000+2 - 9 employeesSeattle, WASaffron Key is a Business Consulting company. Their small team of employees is located in Seattle, Washington. Their team provides Business Consulting and Marketing Strategy.Read More
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337Undisclosed1,000 - 9,999 employeesSeattle, WARead More
Accounting company Moss Adams is based in Seattle, Washington. The large team specializes in accounting and IT strategy consulting and was established in 1913.
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338$5,000+Freelancer employeesSeattle, WAOn The Brink Designs, a small web design agency, is in Seattle, Washington. The team provides Web Design and IT strategy consulting.Read More
Industries
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339Undisclosed10 - 49 employeesBellevue, WASSIR Solutions, a software development firm, was established in 2022. The team specializes in Custom Software Development and Web Development.Read More
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340Undisclosed2 - 9 employeesTacoma, WALockr is a Cybersecurity company founded in 2015. The small team focuses on Cybersecurity and Web Design.Read More
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341Undisclosed2 - 9 employeesSeattle, WAPEEXL LLC , an IT managed services company, was founded in 2010. The team offers IT managed services and Web Development and is based in Chișinău, Moldova and Seattle, Washington.Read More
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342Undisclosed2 - 9 employeesTacoma, WACloudEasy4 is a cloud consulting & SI company. They are headquartered in Tacoma, Washington. Their team offers cloud consulting & SI and IT strategy consulting.Read More
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343Undisclosed2 - 9 employeesRedmond, WAYoctocode, LLC is a Redmond, Washington-based software development company. Established in 2015, the team offers Custom Software Development and UX/UI Design.Read More
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344Undisclosed2 - 9 employeesTacoma, WATarget Web Design, a small web design agency, is headquartered in Tacoma, Washington. The team provides Web Design and Web Development.Read More
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345Undisclosed2 - 9 employeesIssaquah, WAMonster Development is a CRM consulting and SI company. They provide CRM consulting and SI and Graphic Design and were launched in 1995. The firm is in Issaquah, Washington.Read More
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346Undisclosed2 - 9 employeesOlympia, WAParagon Works is a web design agency. They specialize in Web Design and Custom Software Development and are in Olympia, Washington.Read More
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347$1,000+10 - 49 employeesSeattle, WARevolution, Inc. Is a small Seattle, Washington-based Digital Strategy company. Their services include Digital Strategy and Graphic Design.Read More
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348Undisclosed10 - 49 employeesEverett, WADA3 Technologies is a cloud consulting & SI company. Their small team is in Everett, Washington and Lucknow, India. Their services include cloud consulting & SI and IT staff augmentation.Read More
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349Undisclosed2 - 9 employeesTacoma, WASmall e-commerce development company Design LLC, is located in Tacoma, Washington. Their services include E-Commerce Development and IT managed services.Read More
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350Undisclosed2 - 9 employeesBothell, WANeoSwift Technologies is a Bothell, Washington-based cloud consulting & SI company. They offer cloud consulting & SI and Web Development and were launched in 2020.Read More
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351$5,000+2 - 9 employeesTacoma, WAMam Web Design is a small Tacoma, Washington-based web design company. Their services include Web Design and Advertising.Read More
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