Top 100 Software Development Companies in Seattle
The Best of April 2024
List of the Best Seattle Software Developers
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Featured providers
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- $10,000+
- 1,000 - 9,999 employees
- Warszawa, Poland
Innowise Group is a custom software development company based in Warsaw, Poland. With more than 1000 specialists on board and 600 projects completed, they use cutting-edge technologies to transform their client's businesses. They are experts in designing and developing tech solutions that will help your company enhance its processes and increase customer satisfaction, thanks to their 15+ years of experience and extensive expertise. They create custom software to fit your unique requirements in terms of timeline, budget, and use case. They handle every step of the development process, from product concept and development to testing, deployment, and support. In addition to building custom software, we also excel in UX/UI design, IT strategy consulting, and staff augmentation.
Industries
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- $75,000+
- 250 - 999 employees
- Charlotte, NC
Dualboot Partners is a product design and software engineering company founded in Raleigh, N.C. in 2018 with over 50 professionals. They offer custom software development and application testing solutions for various clients.
Industries
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- $1,000+
- 50 - 249 employees
- Kolkata, India
Matrix Media Solutions (P) Ltd is a digital development and marketing company based in Kolkata, India. The company, founded in 2003, has over 150 employees and provides a wide range of digital services that include application testing, AI, custom software development, web design & development, mobile app development, SEO, PPC, and social media marketing services to various companies.
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31
- $10,000+
- 10 - 49 employees
- Seattle, WA
User experience agency Amberteq was founded in 2008. The company offers ux/ui design, custom software development, web development, mobile app development, and more and has a small team. The company is in Bellevue, Washington.
Industries
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32
- $75,000+
- 50 - 249 employees
- Seattle, WA
Founded in 2017, Valere Labs is a custom software development firm. Located in Shrewsbury, Massachusetts, their small team focuses on custom software development, mobile app development, web development, Artificial Intelligence, and more.
Industries
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33
- $1,000+
- 50 - 249 employees
- Seattle, WA
ConnectPOS is a custom software development company. Founded in 2013, the agency is in Seattle, Washington. The midsize team focuses on custom software development and application management & support.Read MoreIndustries
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34
- $5,000+
- 2 - 9 employees
- Burien, WA
Launched in 1998, Sandcastle Web Design and Development is a small web design agency based in Seattle, Washington. Their services include web design, custom software development, e-commerce development, and mobile app development.
Clients
- Aviation Supplies & Academics
Industries
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35
- $5,000+
- 10 - 49 employees
- Seattle, WA
Founded in 2017, Fenyx Studio is an application development company. The firm provides mobile app development, web development, and custom software development and has a small team. The firm is in Santa Monica, California and Seattle, Washington.Read MoreIndustries
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36
- $5,000+
- 10 - 49 employees
- Bellevue, WA
Headquartered in Miami Beach, Florida; Yerevan, Armenia and Bellevue, Washington, Innova is a software development firm. The small firm was launched in 2021. Their team focuses on custom software development, web development, mobile app development, other application development, and more.
Industries
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37
- $100,000+
- 50 - 249 employees
- Seattle, WA
Carbon Five is a software development firm. Established in 2000, the midsize company is located in San Francisco, California; Santa Monica, California; Chattanooga, Tennessee and New York, New York. Their services include custom software development, mobile app development, web development, web design, and more.Read MoreIndustries
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38
- $5,000+
- 50 - 249 employees
- Kirkland, WA
UKAD is a research and development agency based in Sheffield, United Kingdom with offices in France, Poland, and Ukraine. Founded in 2005, their team of about 80 specializes in web development, custom software development, and mobile app development.
Clients
- AJ Produkter
Industries
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39
- $10,000+
- 10 - 49 employees
- Seattle, WA
Established in 2005, Palador is a custom software development firm. Based in Seattle, Washington and Yogyakarta, Indonesia, their small team offers custom software development, enterprise app modernization, ux/ui design, web development, and more.Read MoreIndustries
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40
- $5,000+
- 10 - 49 employees
- Seattle, WA
Rooster Park Consulting is a software development company located in Seattle. It was founded in 2008 and has grown to a team of nearly 30 that does custom software development and IT staff augmentation for mainly IT and retail companies.
Clients
- Disney
Industries
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41
- $5,000+
- 10 - 49 employees
- Seattle, WA
With locations in San Diego and Seattle, LabKey specializes in cloud computing and custom software development. They were founded in 2005 and have about 40 employees. The agency works with various clients in the healthcare, education, and information technology industries.
Clients
- MIT
Industries
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42
- $10,000+
- 50 - 249 employees
- Seattle, WA
DMC, Inc. is an engineering and development firm founded in 1996. It is headquartered in Chicago, but has other locations in Somerville, Mass.; Denver, Colo.; New York, N.Y.; Houston, Texas; and St. Louis, Mo. DMC, Inc. has about 150 employees. While DMC's origins are in robotics and manufacturing automation, they currently offer custom software development and big data consulting services.
Clients
- 3M
Industries
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43
- Undisclosed
- 10 - 49 employees
- Kirkland, WA
Jetstream Software, Inc. Is a software development company launched in 1994. The small team provides custom software development. The agency is in Kirkland, Washington.Read More -
44
- Undisclosed
- 50 - 249 employees
- Kirkland, WA
Dev9 is a midsize custom software development company headquartered in Kirkland, Washington. Established in 2010, the team offers custom software development and IT managed services.Read More -
45
- $10,000+
- 250 - 999 employees
- Bellevue, WA
SOUTHWORKS is a custom software development company based in London, United Kingdom; Bellevue, Washington and Vancouver, Canada. The company focuses on custom software development, cloud consulting & SI, BI & big data consulting & SI, and cybersecurity and has a midsize team.The company was launched in 2004.Read MoreIndustries
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46
- Undisclosed
- 1,000 - 9,999 employees
- Seattle, WA
Based in San Fernando, Spain; Seattle, Washington and , United Kingdom, Xebia is a large big data company. Founded in 2001, the team provides BI & big data consulting & SI, cloud consulting & SI, custom software development, web development, and more.Read More -
47
- Undisclosed
- 2 - 9 employees
- Kirkland, WA
PiorSoft is a custom software development company. They are headquartered in Kirkland, Washington and have a small team that specializes in custom software development. The agency was launched in 2016.Read More -
48
- Undisclosed
- 1,000 - 9,999 employees
- Seattle, WA
F5 is a cloud consulting & SI company. Their large team is located in Seattle, Washington and Billerica, Massachusetts. Their services include cloud consulting & SI, custom software development, Artificial Intelligence, public relations, and more. The firm was founded in 1996.Read MoreIndustries
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49
- Undisclosed
- 250 - 999 employees
- Bellevue, WA
Fresh Consulting, a web design agency, is located in Bellevue, Washington and Bangkok, Thailand. The midsize firm was founded in 2007. Their services include web design, custom software development, mobile app development, branding, and more.Read MoreIndustries
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50
- Undisclosed
- 2 - 9 employees
- Seattle, WA
Actus Consulting Group is a small CRM consulting and SI and software development company. Headquartered in Seattle, Washington, the agency was founded in 2011. Their services include CRM consulting and SI and custom software development.Read More -
51
- $1,000+
- 2 - 9 employees
- Bothell, WA
Autonomicsoft Solutions LLC is a software development company and application testing company. The small team is in Bothell, Washington. Their services include custom software development and application testing.Read More -
52
- $5,000+
- 10 - 49 employees
- Seattle, WA
Caravel Labs is a small user experience design company. They offer ux/ui design, web design, mobile app development, and web development and were established in 2019. The company is headquartered in Seattle, Washington.Read More -
53
- Undisclosed
- 50 - 249 employees
- Redmond, WA
Flexasoft is a midsize software development company. They offer custom software development, business consulting, application testing, and IT managed services and were launched in 2007. The company is located in Redmond, Washington.Read More -
54
- Undisclosed
- 50 - 249 employees
- Seattle, WA
Formidable is a software development company. The midsize team is in Seattle, Washington and London, United Kingdom. Their services include custom software development, IT managed services, cloud consulting & SI, and application testing.
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55
- Undisclosed
- 50 - 249 employees
- Seattle, WA
SolluCIO Partners is a cybersecurity company headquartered in Seattle, Washington. They focus on cybersecurity, business consulting, and custom software development and were launched in 2014.Read More -
56
- Undisclosed
- 50 - 249 employees
- Sammamish, WA
Datadigm is a midsize Sammamish, Washington-based software development company. Their services include custom software development, IT strategy consulting, BI & big data consulting & SI, and cloud consulting & SI.Read More -
57
- Undisclosed
- 10 - 49 employees
- Seattle, WA
Established in 2019, DevsWeek is an IT strategy consulting company. The small Seattle, Washington-based team offers IT strategy consulting, custom software development, and IT managed services.Read More -
58
- $10,000+
- 50 - 249 employees
- Seattle, WA
Devblock is a software development company. The midsize Seattle, Washington-based company was founded in 2008. Their team focuses on custom software development, mobile app development, web development, e-commerce development, and more.Read MoreIndustries
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59
- Undisclosed
- 10 - 49 employees
- Seattle, WA
ITrellis is a Seattle, Washington-based cloud consulting & SI company. The small agency was established in 2013. Their team offers cloud consulting & SI, custom software development, IT strategy consulting, and IT managed services.Read More -
60
- Undisclosed
- 10 - 49 employees
- Seattle, WA
Launched in 2017, Tignis is a custom software development firm. Headquartered in Seattle, Washington, their small team offers custom software development, Artificial Intelligence, IT strategy consulting, and IT managed services.Read More
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