Top 100 IT Services Companies in Seattle
The Best of March 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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$1,000+250 - 999 employeesDallas, TXRead More
Mercury Managed Services is a cloud consulting & SI company established in 2018. Their small team is in Carrollton, Texas. Their services include cloud consulting & SI, IT managed services, and cybersecurity.
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$25,000+250 - 999 employeesLos Angeles, CAIT strategy consulting company Nearsure is based in Los Angeles, California; Wilmington, Delaware; Montevideo, Uruguay and Envigado, Colombia. The midsize agency was established in 2018. Their services include IT strategy consulting, IT staff augmentation, IT managed services, Custom Software Development, and more.Read More
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$5,000+50 - 249 employeesNaperville, ILIT managed services company BetterWorld Technology is located in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado. They provide IT managed services, Cybersecurity, and IT strategy consulting and were launched in 2003.Read More
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1$10,000+50 - 249 employeesBellevue, WAIn Saint Helier, Jersey; St Peter Port, Guernsey; Coventry , United Kingdom and Leicester , United Kingdom, Calligo is a cloud consulting & SI company. They offer cloud consulting & SI, Artificial Intelligence, and BI & big data consulting & SI and were established in 2010.Read More
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MicrosoftIndustries
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2$25,000+50 - 249 employeesIssaquah, WARead More
OntargIT is an ERP consulting and SI company launched in 2009. They are headquartered in Kyiv, Ukraine; Issaquah, Washington and Québec, Canada and have a midsize team. Their services include ERP consulting and SI, CRM consulting and SI, and BI & big data consulting & SI.
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3$10,000+10,000+ employeesBellevue, WARead More
Beyondsoft Consulting is a business IT and consulting company based in Bellevue, Wash., with offices in Torrance, Calif.; Singapore; Beijing; Noida, India; and Kyiv, Ukraine. The company, founded in 1995, has more than 10,000 employees and provides BI & big data consulting & SI, cloud consulting & SI, IT strategy consulting, custom software development, and enterprise app modernization services. Beyondsoft Consulting serves enterprise and mid-market companies in various industries that include IT, automotive, and financial services.
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HPIndustries
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4$10,000+10 - 49 employeesSeattle, WAStrong CRM is a small CRM consulting and SI company headquartered in Seattle, Washington. They specialize in CRM consulting and SI, IT managed services, and Application Management & Support and were established in 2022.Read More
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5Undisclosed10 - 49 employeesSeattle, WARead More
CyberStreams, an IT strategy consulting company, was founded in 1999. The small team specializes in IT strategy consulting, cybersecurity, IT managed services, and other IT consulting and SI. The company is located in Seattle, Washington.
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6$5,000+10 - 49 employeesRenton, WARead More
Pact-One Solutions, LLC, a IT managed services company, is headquartered in Las Vegas, Nevada; San Diego, California; Pasadena, California and Lake Oswego, Oregon. The small team focuses on IT managed services, cybersecurity, IT strategy consulting, other IT consulting and SI, and more and was founded in 2003.
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7$1,000+10 - 49 employeesBellevue, WARead More
Fractional CMO is a marketing automation agency with offices in Hyderabad, India and Seattle. Founded in 2017, they comprise 13 employees specializing in content marketing, social media, lead generation, SEO, online branding, and CRM. They work with small and midmarket businesses, primarily in IT, real estate, and manufacturing.
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AvisoIndustries
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8$1,000+50 - 249 employeesBothell, WARead More
IT managed services company ISOutsource is headquartered in Bothell, Washington; Beaverton, Oregon; Spokane, Washington and Phoenix, Arizona. The firm offers IT managed services, cybersecurity, cloud consulting & SI, IT strategy consulting, and more and is midsize.The firm was launched in 1992.
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9$5,000+50 - 249 employeesSeattle, WAHeadquartered in Seattle, Washington; Yerevan, Armenia and Almaty, Kazakhstan, Innova is a big data analytics company. The midsize agency was established in 2021. Their services include BI & big data consulting & SI, cloud consulting & SI, IT managed services, Custom Software Development, and more.Read More
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10$100,000+250 - 999 employeesSeattle, WARead More
Founded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.
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AT&TIndustries
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11$5,000+50 - 249 employeesKent, WABlackPoint IT is a midsize IT managed services company. The Kent, Washington-based company was founded in 1977. Their team specializes in IT managed services, Cybersecurity, unified communications consulting & SI, IT strategy consulting, and more.Read More
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Seaport SteelIndustries
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12Undisclosed10 - 49 employeesTukwila, WALaunched in 2009, Fuse Networks is a IT managed services company. The firm focuses on IT managed services, unified communications consulting & SI, and IT strategy consulting and has a small team.Read More
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13$1,000+50 - 249 employeesSeattle, WARead More
Nuvodia is a Spokane, Washington-based IT managed services company. The midsize team focuses on IT managed services, IT staff augmentation, cybersecurity, and other IT consulting and SI. The firm was launched in 2012.
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14$10,000+250 - 999 employeesBellevue, WAAffirma Consulting is a software development company. The midsize Bellevue, Washington-based team specializes in Custom Software Development, Web Development, Digital Strategy, BI & big data consulting & SI, and more. The firm was launched in 2001.Read More
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MicrosoftIndustries
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15Undisclosed250 - 999 employeesSeattle, WAIT managed services company Net at Work LLC was launched in 1996. They are in New York, New York; Hialeah, Florida; Totowa, New Jersey and North Attleborough, Massachusetts and have a midsize team. Net at Work LLC focuses on IT managed services, Cybersecurity, IT strategy consulting, ERP consulting and SI, and more.Read More
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Palmer HollandIndustries
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16Undisclosed10 - 49 employeesBellevue, WASparta Services LLC is an IT managed services company. They are in Bellevue, Washington and have a small team. Their services include IT managed services, CRM consulting and SI, IT strategy consulting, cloud consulting & SI, and more.Read More
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17$25,000+50 - 249 employeesSeattle, WARead More
Mobcoder is a software development company based in Seattle. They also have an office in Noida, India. Founded in 2014, their team of 40 employees provides mobile app development, custom software, and web development services to its midmarket and small business clients. They also serve enterprise clients.
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General millsIndustries
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18$10,000+50 - 249 employeesBellevue, WARead More
Virtuosity Consulting, a custom software development firm, was launched in 2008. They are located in Bellevue, Washington and Navi Mumbai, India and have a midsize team. Their services include custom software development, IT managed services, enterprise app modernization, web development, and more.
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19$1,000+1,000 - 9,999 employeesBellevue, WAInsight Global is a Staffing company. Their team is in Atlanta, Georgia and Birmingham, Alabama. The agency provides Staffing and BI & big data consulting & SI.Read More
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20$10,000+2 - 9 employeesSeattle, WARead More
Sayenko Design is a web design and development agency that specializes in the Shopify platform. The company has about four employees and was founded in 2009. Based in Seattle, Sayenko Design supports small- to medium-sized businesses. They focus on WordPress, PHP, and SQL. Other services include online marketing, branding.
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EricksonIndustries
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21$1,000+250 - 999 employeesSeattle, WARead More
Headquartered in South Jordan, Utah; Roseville, California; Elk Grove, California and Seattle, Washington, Executech is an IT managed services company. The midsize firm was established in 1999. Their services include IT managed services, cloud consulting & SI, cybersecurity, IT strategy consulting, and more.
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22Undisclosed50 - 249 employeesBellevue, WARead More
Founded in 2010, WaferWire Cloud Technologies is located in Bellevue, Wash. Their team of about 50 employees provides web design, graphic design, and ERP consulting and SI services.
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Treasury Curve -
23Undisclosed50 - 249 employeesSeattle, WARead More
Smashing Ideas is a mobile app development company that offers an array of services such as UI/UX design, web design, data strategy and analytics, and quality assurance and testing. Since its founding in 1996, Smashing Ideas has grown to over 50 employees who are passionate, curious, and creative.
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24$10,000+50 - 249 employeesKirkland, WABased in Kirkland, Washington; Buenos Aires, Argentina and Mission Viejo, California, AccelOne is an AI company. Founded in 2013, the midsize team specializes in Artificial Intelligence, Generative AI, IT managed services, IT staff augmentation, and more.Read More
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XapoIndustries
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25Undisclosed50 - 249 employeesBellevue, WARead More
Metia, Inc. is a digital marketing firm with over 200 employees. Founded in 1989, the company is headquartered in Kirkland, Wash. with locations in Texas, London, and Singapore. The team focuses on web development, design, SEO, email marketing, and digital strategy. They primarily work with enterprise clients.
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MicrosoftIndustries
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26$1,000+10 - 49 employeesRenton, WARead More
Fidelis, Inc. is an IT services company in Tukwila, Wash. and Wilsonville, Ore. Founded in 2008, they have about 10 employees that serve mostly small businesses in the business, education, and healthcare sectors. Services include IT managed services, cybersecurity, and UC consulting.
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Laurus Financial Services, LLCIndustries
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27$1,000+10 - 49 employeesBellevue, WARead More
MalwareCare, a cybersecurity company, is in Bellevue, Washington. They focus on cybersecurity and were established in 2007.
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28$1,000+10 - 49 employeesKirkland, WASuite Solutions Group, an ERP consulting and SI and accounting company, was established in 2020. The firm provides ERP consulting and SI and accounting and has a small team.Read More
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29Undisclosed2 - 9 employeesSeattle, WARead More
Freelock LLC is a Seattle-based internet and web design firm that was founded in 2002. Freelock LLC's team of 5 employees works mainly with small- and mid-market sized clients but has experience working with large corporations as well. The firm specializes in web and UI/UX design along with e-commerce development.
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30Undisclosed1,000 - 9,999 employeesRedmond, WARead More
Based in Bengaluru, India, Sonata Software is an IT strategy consulting company. The large firm was founded in 1986. Their team provides IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, ERP consulting and SI, and more.
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