Top 100 Mobile App Developers in Seattle
The Best of December 2025Looking for a top mobile app development company in Seattle?
Your mobile app is an extension of your branding. Quality assurance is paramount when building a product representing your brand's identity.
To improve your success rate, find the right partner through this list of the top mobile app developers in Seattle.
List of the Best Seattle Mobile App Development Companies
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91$5,000+2 - 9 employeesSeattle, WARead More
Founded in 2003, Swecker is a Seattle-based web development agency that serves small and mid-market businesses. In addition to web development, the team of fewer than 10 also offers mobile app and custom software development and design.
Clients
MicrosoftIndustries
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92Undisclosed2 - 9 employeesSeattle, WAFounded in 2016, App Development Seattle is an application development firm. The team provides Mobile App Development and Web Design.Read More
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93$1,000+2 - 9 employeesBellevue, WAEstablished in 2023, Fuze Studio is a website development firm. In Bellevue, Washington, the team specializes in Web Development and Web Design.Read More
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94$250,000+2 - 9 employeesRenton, WACoreUs is a software development firm. The Renton, Washington-based company provides Custom Software Development and UX/UI Design.Read More
Industries
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95$1,000+2 - 9 employeesKirkland, WAFounded in 2019, The Secret Lab, a small AR/VR development company, is headquartered in Kirkland, Washington and. Their team provides AR/VR development and Wearable App Development.Read More
Industries
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96Undisclosed2 - 9 employeesBellevue, WAMobile app development firm Doxieworks LLC was established in 2007. The company provides Mobile App Development and Web Development, and is small.Read More
Industries
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97Undisclosed10 - 49 employeesBellevue, WAWeb design agency Adroit Business Solutions, Inc. Was launched in 2003. The firm provides Web Design and Mobile App Development.Read More
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98Undisclosed1,000 - 9,999 employeesSeattle, WASlalom Build is an user experience design agency launched in 2001. Their services include UX/UI Design and CRM consulting and SI.Read More
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99Undisclosed1,000 - 9,999 employeesRedmond, WAQuadrant Technologies, a big data analytics company, offer BI & big data consulting & SI and Business Consulting. They were launched in 2004.Read More
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100Undisclosed2 - 9 employeesSeattle, WAZenwerks Web Development, LLC is a branding firm. In Seattle, Washington, their small team specializes in Branding and Mobile App Development. The firm was launched in 1999.Read More
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101Undisclosed2 - 9 employeesBothell, WAXcarab is a big data company launched in 2001. Their team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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102Undisclosed10 - 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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103Undisclosed10 - 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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104Undisclosed10 - 49 employeesSeattle, WAEstablished in 2019, UpTop Health is a Digital Strategy company. Their services include Digital Strategy and UX/UI Design.Read More
Industries
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105Undisclosed10 - 49 employeesSeattle, WALaunched in 2017, Diatomic Product Development is a Product Design company. The company focuses on Product Design and Custom Software Development.Read More
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106Undisclosed10 - 49 employeesSeattle, WAEstablished in 2002, Page 3 Design is an Architectural Design company. The team focuses on Architectural Design and Mobile App Development.Read More
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107Undisclosed250 - 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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108Undisclosed2 - 9 employeesSeattle, WABlank Space LLC is a branding agency. They specialize in Branding and Graphic Design and were established in 2006. The agency is based in Seattle, Washington.Read More
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109Undisclosed2 - 9 employeesSeattle, WAEstablished in 2011, Generalsoft Corporation is a custom software development firm. Headquartered in Seattle, Washington, the team specializes in Custom Software Development and cloud consulting & SI.Read More
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110Undisclosed2 - 9 employeesBellevue, WAComputer Engineering company PositiveSine, Inc. Is located in Bellevue, Washington. They focus on Computer Engineering and Custom Software Development.Read More
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111Undisclosed2 - 9 employeesRedmond, WAEstablished in 2018, Axcend Consulting is a small Redmond, Washington-based data analytics company. Their team provides BI & big data consulting & SI and Custom Software Development.Read More
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112$5,000+2 - 9 employeesRedmond, WAREVERA.PRO Agency is an AR/VR development company. Headquartered in Atlanta, Georgia and Redmond, Washington, their team offers AR/VR development and Branding.Read More
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113$1,000+50 - 249 employeesSeattle, WARead More
Vinova is an app and game development service based in Singapore. Founded in 2010, the team of 35 employees specializes in mobile app development, web development, and custom software development. They work with small businesses, midmarket businesses, and enterprises, focusing on information technology and gaming.
Clients
FWD InsuranceIndustries
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114$25,000+10 - 49 employeesDenver, CORead More
Devscale is a Chicago-based digital agency that provides mobile app development, web development, and custom software development. Founded in 2016, the company currently consists of under 5 employees.
Clients
BudweiserIndustries
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115Undisclosed10 - 49 employeesBellevue, WALeszynski Group, Inc. Is a cloud consulting & SI company. Launched in 1990, the team specializes in cloud consulting & SI and Business Consulting.Read More
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116$10,000+2 - 9 employeesSeattle, WABrandQuery, LLC is a Marketing Strategy company. Established in 1992, the agency is headquartered in Seattle, Washington. Their team focuses on Marketing Strategy and Advertising.Read More
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117Undisclosed2 - 9 employeesBellevue, WALabs8 is an IoT development company. The Bellevue, Washington-based firm provides IoT development and Marketing Strategy.Read More
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118$1,000+2 - 9 employeesTacoma, WARead More
Grinev Software is a development company based in Federal Way, Wash. Their team was founded in 2007 and has around 10 employees. They primarily provide mobile app, web, and e-commerce development.
Clients
grinev.softwareIndustries
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119$5,000+2 - 9 employeesGig Harbor, WAHeadquartered in Gig Harbor, Washington, GOLAZO Services, LLC is a web development company. They specialize in Web Development and Mobile App Development.Read More
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120$1,000+2 - 9 employeesMonroe, WASell in Seattle is a SEO agency. The firm is based in Monroe, Washington. Their team focuses on Search Engine Optimization and Web Development.Read More
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