Top 100 Web Development Companies in Seattle

UPQODE is a web design agency based in Nashville, Tennessee; New York, New York; Tampa, Florida and Seattle, Washington. They focus on Web Design, Web Development, UX/UI Design, Custom Software Development, and more and were launched in 2015.

Since 2009, ChopDawg.com has created 350+ digital products – from mobile applications and web applications to blockchain and artificial intelligence technologies for startups, Fortune 500s, growing businesses, and non-profits around the globe. Think of ChopDawg.com not as your agency but as your technical partner. Headquartered in Philadelphia, with offices in Boston, Seattle, New York, Atlanta, Washington, D.C., and Los Angeles, Chop Dawg currently has a team of more than 50. 

Efelle Creative is an advertising and software development firm with about 30 employees. Based in Seattle, the team focuses on web design, web development, SEO, and e-commerce development. The company was founded in 2005.

Culture Foundry is a web agency founded in Seattle in 2010 with more than 10 employees. They specialize in digital strategy, web design, and web development solutions for small and mid-market firms in the fields of arts, IT, and financial services.

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.  

Matellio is a mobile and web app development company founded in 2012. Headquartered in San Jose, Calif., Matellio's team of around 40 specialize in web and mobile app development.Although Matellio encountered unexpected challenges that led to minor delays, the client appreciated their clear communication.

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. 

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.

Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.

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.  

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.

Gigantic is a web design agency founded in 2020. The agency specializes in web design, ux/ui design, web development, branding, and more and has a small team.

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. 

 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.   

UKAD, founded in 2005, is an IT Outsourcing and Staff Augmentation company. Headquartered in Kirkland, WA, with delivery centers in Eastern Europe, their 300+ strong team delivers customized software development solutions. UKAD excels across a broad range of IT services, with deep expertise in Ecommerce, Retail, Logistics, Fintech, and Healthcare.

Bonsai Media Group is a full service internet marketing agency located in Seattle, Wash. Founded in 2006, Bonsai Media Group specializes in web design, web development, and social media marketing. Bonsai Media Group employs a team of around 35.

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. 

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.

ATOMICUS, 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.

Codersh Web Services is a web agency based in Ahmedabad, India, and founded in 201. With no more than 10 experts, they specialize in web design, web development, and mobile app development services for small firms in the industries of business and IT services, among others.

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.

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.

coolblueweb is an information tech and service firm that was founded in 2009 and based in Seattle. coolblueweb's team of 18 employees specialize in web and e-commerce design, particularly on the Magento and WooCommerce platforms.    

In Chicago, Illinois, 128 is a small web design agency. They specialize in web design and web development and were launched in 2021.

Founded in 2007, BTown Web is a development agency located in Burien, Wash. The small team of 8 provides expertise in web development, e-commerce development, and custom software development.  

Advertising company D2 Creative was founded in 2014. Headquartered in Kirkland, Washington; West Linn, Oregon and Pittsfield, Massachusetts, their small team provides advertising, branding, marketing strategy, media planning & buying, and more.

R2integrated is a national digital agency with offices in Baltimore, Md., Seattle, St. Louis, New York, and Silicon Valley, Calif. With over 200 employees, this agency uses web development, creative design, brand strategy, and search services to produce the best marketing strategies for their clients.

Hero Creative is a Seattle-based media production company founded in 2012. Their team of around 10 employees provides marketing strategy, branding, advertising and web design. They primarily serve enterprise clients in the advertising, hospitality and nonprofit industries.

TECLA is a staff augmentation firm with offices in Seattle, Mexico, Lima, Peru, and various other South American countries. Since 2012, their small team of around 10 specializes in custom software, web, and e-commerce development.  

Montana Banana’s skill in full-service web and mobile app development has yielded results for clients since 1996. In addition to an office in Seattle, WA, the team of 5 also has a presence in Pasadena, CA. The development company stands out in web, mobile app development, and e-commerce development, as well as design.