Top 100 Software Development Companies in Washington

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.

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.

A full-service digital design and development agency, Flower Press Creative Studio takes on mobile app, web, and custom software development projects. Founded in 2001, the small team of 6 is headquartered in Seattle and also has experience in UI/UX design.

Launched in 2018, Houdini Interactive is a branding agency. Their small team is based in Spokane, Washington. Their services include branding, event marketing & planning, web design, ux/ui design, and 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.  

Founded in 2000, UpTop specializes in UI/UX design but also shines in web and mobile app development. Their team of 50+ are passionate about solving complex problems and increasing revenue for their clients.

Located in Portland, OR, Parthenon Software Group and its team of nearly 40 develop web and mobile apps. Founded in 2006, the company also has experience in custom software development.

Black Antelope is a digital creative industry headquartered in Seattle. It was founded in 2009 and has expanded to additional locations in Sacremento, Calif. and London. Black Antelope has about 3 employees that serve a range of enterprise and small- to mid-sized businesses. Services include custom software development, web development, and web design. 

Affirma Consulting is a full-service technology consulting agency. Founded in 2001, Affirma Consulting is based in Seattle, WA with additional offices in Los Angeles, CA, India, Ireland, and Reno, NV. The team of 200+ focuses on consulting for Business Intelligence (BI), Sharepoint, Salesforce, and customer relationship management (CRM) software, they also offer design, marketing, and mobile and web development.

Sol Minion Development is a small Tempe, Arizona-based cloud consulting & SI company. Founded in 2012, the team specializes in cloud consulting & SI, custom software development, cybersecurity, web development, and more.

PubGENIUS is an app development firm. They are based in SEATTLE, Washington and have a small team. The firm offers mobile app development, custom software development, and web development.

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.

Based in Vancouver, Washington, DreamsToLife, LLC is an e-commerce development company. The small company was founded in 2021. Their team focuses on e-commerce development, web development, custom software development, direct marketing, and more.

Redtech is a custom software development firm. They are located in Bellevue, Washington and have a midsize team. Their services include custom software development, non-voice bpo/back office services, digital strategy, web development, and more. The agency was established in 1995.

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. 

Cascadian Software is a website development firm and mobile application development company. They are in Portland, Oregon and have a small team. Their services include web development and mobile app development. The firm was launched in 2022.

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.
 

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.

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.

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.

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.

Research & Design is a design agency founded in 2010 with more than 10 employees. Based in Anacortes, Wash., they offer web development, web design, and UX/UI design solutions for clients in the fields of health care, education, and nonprofit.

In Arlington, Washington, FDG Web, Inc is a web design company. Launched in 2000, the small team specializes in web design, web development, custom software development, and e-commerce development.

Helpful Human is a development agency based in Seattle. Since 2013, their team of 15 has been specializing in web design and development, mobile app development, and UX/UI design. They work primarily with small businesses in the information services and business services industries.

FluentPro Software Corporation is a midsize big data company. Launched in 2009, the company is headquartered in Redmond, Washington. Their team provides BI & big data consulting & SI, IT managed services, and IT strategy consulting.

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.

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.

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.

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.

Located in North Bend, Washington, Binary Anvil Inc. Is a custom software development firm. They specialize in custom software development, web development, CRM consulting and SI, ECM consulting and SI, and more and were established in 2006.