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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$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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211Undisclosed50 - 249 employeesBellevue, WABluehawk Consulting is an IT managed services company. Established in 2011, the team specializes in IT managed services and Business Consulting.Read More
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212Undisclosed50 - 249 employeesKent, WALaunched in 2020, Exigency is a midsize social media marketing agency. Their services include Social Media Marketing and Email Marketing.Read More
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213$1,000+2 - 9 employeesSeattle, WAUp n Up Global is a Marketing Strategy company. Established in 2019, the team provides Marketing Strategy and Pay Per Click.Read More
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214Undisclosed10 - 49 employeesSeattle, WATignis is a custom software development company. Established in 2017, the firm is located in Seattle, Washington. Their team specializes in Custom Software Development and Artificial Intelligence.Read More
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215Undisclosed10 - 49 employeesPoulsbo, WAVelosys, a software development company, specializes in Custom Software Development and IT strategy consulting. The company is located in Poulsbo, Washington.Read More
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216Undisclosed10 - 49 employeesBellevue, WAIT SOFT, a small software development firm, is based in Bellevue, Washington. The team focuses on Custom Software Development and Web Development.Read More
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217$5,000+10 - 49 employeesKirkland, WAFacet Digital, LLC is a website development firm founded in 2013. The small team offers Web Development and Mobile App Development.Read More
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218$1,000+10 - 49 employeesRedmond, WAWebtual Global Inc., a custom software development company, was founded in 2019. The company offers Custom Software Development and Enterprise App Modernization.Read More
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219$1,000+10 - 49 employeesSeattle, WASEO company Zigantic is based in Seattle, Washington and Bengaluru, India. The small team specializes in search engine optimization, ecommerce marketing, content marketing, email marketing, and more and was established in 2021.Read More
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220$1,000+10 - 49 employeesSeattle, WANexolabs is a small DevOps Managed Services company. Launched in 2020, the team provides DevOps Managed Services and Microservices Architecture Services.Read More
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221Undisclosed250 - 999 employeesBellevue, WABrickRed Systems, a midsize Application Testing company, is in Bellevue, Washington and Hyderabad, India. Their services include Application Testing and Business Consulting.Read More
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222Undisclosed250 - 999 employeesBellevue, WAAuth0 by Okta is a cloud consulting & SI company. Their midsize team is based in Bellevue, Washington and provides cloud consulting & SI and Custom Software Development. The firm was founded in 2013.Read More
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223Undisclosed250 - 999 employeesBellevue, WALaunched in 1973, Mars United Commerce is a branding agency. The midsize team specializes in Branding and Market Research.Read More
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224$1,000+2 - 9 employeesBellevue, WALevel Up CRM is a CRM consulting and SI company. Located in Lometa, Texas and Shaker Heights, Ohio, the team provides CRM consulting and SI and IT strategy consulting.Read More
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225Undisclosed2 - 9 employeesSeattle, WAFounded in 2001, Bright Spectrum, Inc. Is a web design agency. The company specializes in Web Design and ECM consulting and SI.Read More
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226Undisclosed2 - 9 employeesRenton, WAAg Washington Web Services is a Cybersecurity company. Established in 2011, the firm is headquartered in Renton, Washington. Their services include Cybersecurity and Web Design.Read More
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227Undisclosed10 - 49 employeesRedmond, WAAstrabitLLC is a software development firm. The firm is headquartered in Redmond, Washington. Their services include Custom Software Development and Web Development.Read More
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228$1,000+2 - 9 employeesKirkland, WADefency, a small Cybersecurity company, is located in Kirkland, Washington. Their services include Cybersecurity.Read More
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229$1,000+Freelancer employeesSeattle, WAHallyu Digital: Marketing Agency is a Digital Strategy company. Launched in 2017, the agency is based in Seattle, Washington. Their team provides Digital Strategy and Business Consulting.Read More
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230$1,000+10 - 49 employeesSnohomish, WARead More
IT managed services company SisAdmin was founded in 2001. Their small team is in Snohomish, Washington. SisAdmin focuses on IT managed services, IT strategy consulting, and cybersecurity.
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231$1,000+10 - 49 employeesSeattle, WABased in Seattle, Washington, Mercutio is an e-commerce development company. Established in 2015, the team focuses on E-Commerce Development and Web Development.Read More
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232$5,000+10 - 49 employeesSeattle, WALabKey is a small software development company located in Seattle, Washington and San Diego, California. The team offers Custom Software Development and cloud consulting & SI.Read More
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MITIndustries
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233Undisclosed10 - 49 employeesSeattle, WASolomon Solution is a Marketing Strategy company. They provide Marketing Strategy and Content Marketing and are headquartered in Seattle, Washington.Read More
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234Undisclosed10 - 49 employeesSeattle, WACloud consulting & SI company Marici Technology Solutions provides cloud consulting & SI and ECM consulting and SI. They are headquartered in Seattle, Washington.Read More
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235Undisclosed10 - 49 employeesSeattle, WATreadwell Data, an API Development company, is headquartered in Seattle, Washington. Established in 2014, the team provides API Development and IT managed services.Read More
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236Undisclosed10 - 49 employeesBothell, WAIT strategy consulting company Innovative Edge TCS is in Bothell, Washington. Founded in 2015, the team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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237Undisclosed50 - 249 employeesBellevue, WAAmplify Consulting Partners is a big data company. Located in Bellevue, Washington, the agency specializes in BI & big data consulting & SI and Business Consulting.Read More
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238Undisclosed250 - 999 employeesFederal Way, WALaunched in 2005, Applexus Technologies is an ERP consulting and SI company. The agency provides ERP consulting and SI.Read More
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239$5,000+50 - 249 employeesSeattle, WARead More
ProCogia is a data analysis solutions company based in Vancouver, Canada, with an office in Seattle. The company, founded in 2013, has a team of around 75 that provides AI, BI & big data consulting & SI, cloud consulting & SI, custom software development, and IoT development services. ProCogia serves small and mid-market companies in various industries.
Clients
T-MobileIndustries
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240Undisclosed50 - 249 employeesBellevue, WAStrong Tower Consulting, LLC is a Business Consulting company. Established in 2014, their team offers Business Consulting and BI & big data consulting & SI.Read More
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