
Top 100 Web Development Companies in Seattle
The Best of May 2025Looking for a top web developer in Seattle?
Regardless of size and industry, customers nowadays expect you to have a website for your business. They want a platform where they can see more of your products and services, get support for their inquiries, and more.
The Manifest sorted out a list of the leading web development companies in Seattle ready to turn your ideas into a fully-functioning platform. Before you connect with them, make sure you’ve taken the time to read their reviews, profiles, and awards.
>List of the Best Seattle Web Developers
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1$5,000+50 - 249 employeesSeattle, WAUPQODE 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.Read More
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Gracenote - Entertainment ProvidersIndustries
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2$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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3$5,000+10 - 49 employeesSeattle, WAChopDawg.com is a mobile application development firm. The Philadelphia, Pennsylvania-based company was established in 2009. The small team specializes in Mobile App Development and Web Development.Read More
Clients
Alpha Paw Big Brothers Big Sisters Choice Home Warranty City of Peachtree Corners, GeorgaIndustries
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4$25,000+2 - 9 employeesSeattle, WA
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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5$25,000+10 - 49 employeesSeattle, WA
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.
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Design & Development for ZulillyIndustries
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6Undisclosed2 - 9 employeesSeattle, WA
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.
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7$100,000+250 - 999 employeesSeattle, WAMidsize app development firm Matellio, is in San Jose, California; Denver, Colorado; Jaipur, India and Seattle, Washington. Launched in 2014, the team provides Mobile App Development, IT staff augmentation, Web Development, IoT development, and more.Read More
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StartupsIndustries
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8$50,000+50 - 249 employeesSeattle, WA
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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9$10,000+2 - 9 employeesSeattle, WA
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.
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10$10,000+2 - 9 employeesSeattle, WA
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.
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EricksonIndustries
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11$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
Clients
UC Berkeley (Berkeley, CA)Industries
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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
Clients
Insurance LoungeIndustries
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13$25,000+10 - 49 employeesSeattle, WA
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.
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AmazonIndustries
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14$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
Clients
AJ Produkter Ginza TargetAid EntitledToIndustries
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15$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
Clients
BRUKER CAMECA AMETEK Hitachi High-TechIndustries
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16$10,000+250 - 999 employeesBellevue, WAAffirma Consulting is a software development company. The midsize Bellevue, Washington-based team specializes in Custom Software Development, Web Development, Digital Strategy, BI & big data consulting & SI, and more. The firm was launched in 2001.Read More
Clients
MicrosoftIndustries
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17$25,000+50 - 249 employeesSeattle, WALaunched in 2014, Mobcoder is an IT staff augmentation company. They are headquartered in Seattle, Washington; Cobham, England; Ghaziabad, India and Burnaby, Canada and have a midsize team. The agency focuses on 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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18$25,000+10 - 49 employeesSeattle, WA
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.
Clients
Days for GirlsIndustries
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19$5,000+10 - 49 employeesSeattle, WA
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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20$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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21Undisclosed10 - 49 employeesSeattle, WA
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.
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Grundéns -
22$5,000+50 - 249 employeesSeattle, WA
In Chicago, Illinois, 128 is a small web design agency. They specialize in web design and web development and were launched in 2021.
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23$1,000+10 - 49 employeesSeattle, WAAstash Web Design and Marketing, a branding company, was founded in 2018. Located in Denver, Colorado; Fort Collins, Colorado; San Diego, California and Las Vegas, Nevada, their small team offers Branding, Social Media Marketing, Search Engine Optimization, Pay Per Click, and more.Read More
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24$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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25Undisclosed10 - 49 employeesKirkland, WA
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.
Clients
Amtrak CascadesIndustries
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26$5,000+2 - 9 employeesBurien, WA
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.
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Pair of ThievesIndustries
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27$25,000+50 - 249 employeesSeattle, WATECLA is an IT staff augmentation company headquartered in Seattle, Washington; Buenos Aires, Argentina; Miraflores, Peru and Sao Paulo, Brazil. The midsize agency was established in 2013. Their services include IT staff augmentation, Staffing, Custom Software Development, and Web Development.Read More
Clients
Mercedes-BenzIndustries
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28Undisclosed50 - 249 employeesSeattle, WA
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.
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MicrosoftIndustries
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29$1,000+10 - 49 employeesSeattle, WA
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.
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Make-A-Wish FoundationIndustries
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30$10,000+2 - 9 employeesSeattle, WA
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.
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ESS Eye ProIndustries
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