Top 100 Software Development Companies in Bellevue
The Best of July 2025List of the Best Bellevue Software Developers
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$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures is a software development firm. Their small team is located in Irvine, California. The firm specializes in Custom Software Development, Mobile App Development, UX/UI Design, E-Commerce Development, and more.Read More
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$25,000+1,000 - 9,999 employeesNew York, NYLaunched in 2002, Vention is a custom software development firm. They are based in New York, New York; Marietta, Georgia; Woodbridge Township, New Jersey and London, England and have a large team. Their services include Custom Software Development, Web Development, IT staff augmentation, Mobile App Development, and more.Read More
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$10,000+250 - 999 employeesWrocław, PolandRead More
Scalo, a software development company, is located in Wrocław, Poland; Kraków, Poland; Warszawa, Poland and Katowice, Poland. The midsize company was launched in 2007. Their services include Custom Software Development, BI & big data consulting & SI, IT managed services, IT staff augmentation, and more.
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$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
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1$25,000+10 - 49 employeesSeattle, WARead More
Founded in 2010 in Seattle, Billberry is a software development studio creating custom software, web apps, and digital products in partnership with some of the world's biggest brands. They have a veteran team of fewer than 50 strategists, designers, and developers who work in partnership with clients to help them grow, innovate, and move their businesses forward. Clients include businesses of all sizes in various industries, including business services, consumer products and services, and financial services.
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Days for GirlsIndustries
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2$50,000+250 - 999 employeesSeattle, WAJelvix is a software development firm founded in 2011. The agency provides Custom Software Development, Enterprise App Modernization, Mobile App Development, and Artificial Intelligence and has a midsize team. The agency is located in Tallinn, Estonia; Kharkiv, Ukraine; Stuttgart, Germany and London, England.Read More
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Tiber Capital GroupIndustries
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$10,000+10 - 49 employeesJohannesburg, South AfricaCubeZoo is a mobile app development company. Established in 2011, the team offers Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more. Their small company is located in Johannesburg, South Africa and London, England.Read More
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3$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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4$50,000+10 - 49 employeesSeattle, WAATOMICUS, a custom software development firm, was launched in 1999. They are in Seattle, Washington and Gdańsk, Poland and have a small team. Their services include custom software development.Read More
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BRUKER CAMECA AMETEK Hitachi High-TechIndustries
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5$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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6$25,000+2 - 9 employeesSeattle, WARead More
Lunarbyte.io is a development agency based in Seattle. Since 2019, the 3-person team has built websites, custom software, and mobile apps for predominantly small businesses.
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DDM ImportsIndustries
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7$50,000+50 - 249 employeesSeattle, WARead More
ThirstySprout is an outsourced development company headquartered in Seattle with an additional office in San Franciso. Founded in 2017, they currently have about 18 employees. They provide IT staff augmentation as well as custom software and web development services to primarily midmarket agencies in IT, e-commerce, and business services.
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Rover.comIndustries
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8$5,000+50 - 249 employeesSeattle, WAUPQODE, a web design company, is in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington. The midsize firm was established in 2015. Their services include Web Design, Web Development, UX/UI Design, Custom Software Development, and more.Read More
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Gracenote - Entertainment ProvidersIndustries
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9$10,000+250 - 999 employeesBellevue, WACustom software development firm Affirma Consulting was founded in 2001. They are based in Bellevue, Washington; Ahmedabad, India; Dublin, Ireland and Fayetteville, Arkansas and have a midsize team. Affirma Consulting provides Custom Software Development, AI Consulting, and Generative AI.Read More
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MicrosoftIndustries
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10$25,000+250 - 999 employeesKirkland, WAPwrteams is an IT staff augmentation company. Their midsize team is based in Kraków, Poland; L'viv, Ukraine; Koerich, Luxembourg and Berlin, Germany. The company provides IT staff augmentation, Custom Software Development, Application Testing, Staffing, and more. The company was launched in 2007.Read More
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SiteCore TUI News UK Dow JonesIndustries
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11$5,000+250 - 999 employeesKirkland, WAEstablished in 2005, UKAD is an IT staff augmentation company. Their midsize team is located in Kirkland, Washington; Kraków, Poland; Kharkiv, Ukraine and Cesson-Sévigné, France and focuses on IT staff augmentation, E-Commerce Development, Low/No Code Development, Custom Software Development, and more.Read More
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AJ Produkter Ginza TargetAid EntitledToIndustries
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12$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
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Insurance LoungeIndustries
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13$25,000+10 - 49 employeesSeattle, WACulture Foundry is a web design agency. They focus on Web Design, Web Development, Digital Strategy, Custom Software Development, and more and were established in 2010. Their small team is located in Seattle, Washington; Boulder, Colorado; Austin, Texas and Portland, Oregon.Read More
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24 Hour FitnessIndustries
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14$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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15$25,000+10 - 49 employeesSeattle, WAUpTop is a small UX company. Founded in 2000, the team offers UX/UI Design, Custom Software Development, and Mobile App Development. The firm is based in Seattle, Washington.Read More
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Amazon F5 SAP Concur LogitixIndustries
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16$25,000+50 - 249 employeesSeattle, WAMobcoder, an IT staff augmentation company, is located in Seattle, Washington; Cobham, England; Ghaziabad, India and Burnaby, Canada. The midsize company was launched in 2014. Their services include IT staff augmentation, Artificial Intelligence, UX/UI Design, BI & big data consulting & SI, and more.Read More
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General millsIndustries
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17$25,000+2 - 9 employeesSeattle, WABlack Antelope, a website development company, was established in 2009. Headquartered in Seattle, Washington, their small team focuses on Web Development, UX/UI Design, Custom Software Development, E-Commerce Development, and more.Read More
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UC Berkeley (Berkeley, CA)Industries
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18$5,000+10 - 49 employeesSeattle, WARead More
Slashdev is a small software development company. The Winter Park, Florida-based company was established in 2021. Their services include custom software development, web development, mobile app development, wearable app development, and more.
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19$25,000+50 - 249 employeesSeattle, WATecla, an IT staff augmentation company, was launched in 2013. The agency offers IT staff augmentation, Staffing, Custom Software Development, and Web Development and has a midsize team.Read More
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Mercedes-BenzIndustries
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20$10,000+2 - 9 employeesSeattle, WALaunched in 2023, Matey is a small web design agency. Their team specializes in web design, ux/ui design, product design, web development, and more. The agency is in Seattle, Washington.Read More
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21$10,000+50 - 249 employeesKirkland, WAAccelOne is an artificial intelligence company launched in 2013. Headquartered in Kirkland, Washington; Buenos Aires, Argentina and Mission Viejo, California, their 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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22Undisclosed50 - 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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ReachNow -
23$25,000+2 - 9 employeesSeattle, WARead More
Northwest Independent Ruby Development is a digital agency based in Seattle. Since 2011, the small team of four has specialized in providing web and custom software development.
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University of Washington -
24$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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25$50,000+10 - 49 employeesSeattle, WARead More
New Normal, founded in 2012, is a software services agency headquartered in Seattle. Their company consists of a team of 22 people who specialize in web development, mobile app development, and e-commerce development. While they mostly work with mid-market businesses, they also work with enterprise and small businesses. The businesses they work with are mostly in the advertising & marketing, e-commerce, and financial services industries.
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AmazonIndustries
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26$5,000+10 - 49 employeesBellevue, WARead More
Scalex Technology Solutions is a digital agency founded in Bellevue, Wash. in 2015 with fewer than 50 employees. They specialize in cloud consulting, mobile app development, and custom software development for clients in the fields of education, financial, and IT services.
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World VisionIndustries
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27$75,000+2 - 9 employeesSeattle, WARead More
Lab is a product development studio based in Seattle. The studio, founded in 2015, has a team of less than ten that provides UX/UI design, product design, and custom software development services to various companies in the consumer products & services, IT, and e-commerce industries.
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Amazon Web ServicesIndustries
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28$1,000+1,000 - 9,999 employeesBellevue, WAInsight Global is a large business intelligence company in Atlanta, Georgia and Birmingham, Alabama. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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29$1,000+250 - 999 employeesBellevue, WARead More
E-commerce development firm Neighborsoft.team was established in 2009. Their midsize team is headquartered in Bellevue, Washington. Neighborsoft.team provides e-commerce development, web development, custom software development, mobile app development, and more.
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30$1,000+10 - 49 employeesSeattle, WATekByt LLC is a web design agency established in 2024. They are in Seattle, Washington and have a small team. Their services include Web Design, UX/UI Design, Custom Software Development, Web Development, and more.Read More
Industries
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