Top 60 JavaScript Development Companies in Seattle
December 2023Looking for a top JavaScript developer in Seattle?
If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.
To assist you in your search for a partner, we’ve compiled this list of the top JavaScript development agencies in Seattle. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Seattle JavaScript Developers
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31
- $25,000+
- 10 - 49 employees
- Seattle, WA
Groove Jones is a mobile app, AR/VR, and custom software developer based in Dallas. Founded in 2015, this 10+ team of digital experts builds the interactive tools that give brands a competitive edge.
Clients
- 3M
- 7 Eleven
- AT&T
- Amazon
Industries
Visit SiteNotable Project
Groove Jones has supported a professional sports team with various AR & VR needs. They’ve created four AR murals and run VR events where fans can experience playing a game with their favorite athletes.
“Their technical expertise is also one of their strengths; they generate content that looks very real.”
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32
- $50,000+
- 50 - 249 employees
- Seattle, WA
Launched in 2009, GenUI is a cloud consulting & SI company. The company offers cloud consulting & SI, mobile app development, web development, ux/ui design, and more and has a midsize team. The company is based in Seattle, Washington.Visit SiteIndustries
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33
- Undisclosed
- 10 - 49 employees
- Seattle, WA
Launched in 2009, Pivotal Consulting is a small cloud consulting & SI company headquartered in Seattle, Washington. Their services include cloud consulting & SI, enterprise app modernization, IT strategy consulting, web development, and more.Visit SiteIndustries
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34
- $10,000+
- 10 - 49 employees
- Seattle, WA
Zipline B2B Marketing is a content marketing company. They are headquartered in Seattle, Washington; Spokane, Washington; Vancouver, Washington and Boise, Idaho and have a small team. Their services include content marketing, digital strategy, search engine optimization, web design, and more. The company was launched in 2005.Visit SiteIndustries
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35
- $75,000+
- 50 - 249 employees
- Seattle, WA
TangoTeams is an app development company. Established in 2021, the team provides mobile app development, web development, custom software development, and other application development. Their midsize firm is Seattle, Washington-based.Visit Site -
36
- $1,000+
- 2 - 9 employees
- Seattle, WA
SeaMonster Studios is a website development firm. The small Seattle, Washington-based company was founded in 2007. Their team specializes in web development, ux/ui design, e-commerce development, web design, and more.
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37
- $10,000+
- 50 - 249 employees
- Seattle, WA
Devblock is a software development company. The midsize Seattle, Washington-based company was founded in 2008. Their team focuses on custom software development, mobile app development, web development, e-commerce development, and more.Visit SiteIndustries
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38
- $75,000+
- 10 - 49 employees
- Bellevue, WA
Small web design agency Tasklancers LLC, is in Bellevue, Washington. They focus on web design, custom software development, web development, mobile app development, and more and were founded in 2021.
Industries
Visit SiteNotable Project
An e-commerce marketplace hired Tasklancers LLC to develop an e-commerce website with various integration, including shipping, payments, tracking, inventory, etc.
"Their team consistently showed up with insightful ideas and well-defined deliverables."
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39
- $10,000+
- 2 - 9 employees
- Kent, WA
WinnComm, LLC is a custom software development firm. They are headquartered in Jaipur, India and Kent, Washington and have a small team that provides custom software development, web development, public relations, social media marketing, and more. The agency was launched in 2014.
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40
- $10,000+
- 50 - 249 employees
- Seattle, WA
DMC, Inc. is an engineering and development firm founded in 1996. It is headquartered in Chicago, but has other locations in Somerville, Mass.; Denver, Colo.; New York, N.Y.; Houston, Texas; and St. Louis, Mo. DMC, Inc. has about 150 employees. While DMC's origins are in robotics and manufacturing automation, they currently offer custom software development and big data consulting services.
Clients
- 3M
- Ford
- Cadbury
- Bosch
Industries
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A large ground logistics firm hired DMC to develop a unique IoT device for their centrally-owned fuel depots. DMC created a device to speed up the refueling process and provide useful data to the firms that own the depots.
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41
- $5,000+
- 2 - 9 employees
- Seattle, WA
Web design agency Suzanne Harrison, Web Design + Build was founded in 2012. The firm offers web design, branding, digital strategy, search engine optimization, and more and has a small team.Visit Site -
42
- $10,000+
- 2 - 9 employees
- Federal Way, WA
Neurian, a web development firm, was launched in 2022. Their small team is headquartered in Federal Way, Washington and provides web development, search engine optimization, web design, conversion optimization, and more.Visit Site -
43
- Undisclosed
- 2 - 9 employees
- Seattle, WA
NOTEBLEU is a web design agency and website development company. Established in 2009, the small firm is in Seattle, Washington. Their services include web design and web development.Visit Site -
44
- $1,000+
- 2 - 9 employees
- Seattle, WA
S9 Digital, a branding company, was established in 2017. Their small team is in Seattle, Washington and specializes in branding, content marketing, search engine optimization, web development, and more.Visit Site -
45
- $5,000+
- 2 - 9 employees
- Shoreline, WA
VisionSnap is a design and development company based in Seattle, with an additional office in Phoenix, AZ. The team was founded in 1999. VisionSnap specializes in providing UX/UI design, web development, and web design services primarily for small and midmarket businesses.
Clients
- Rulersmith
- GuerraWilson Group
- Valley National Bank of Arizona
- Midland Real Estate
Industries
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VisionSnap built a corporate enterprise site for a communication company. They revamped the logo and updated visual aspects. They provided customized solutions and developed a portal for purchase orders.
“They accept every challenge and haven’t failed us yet. We’re completely satisfied.”
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46
- $1,000+
- Freelancer employees
- Lynnwood, WA
Design Detective is a web design company and website development company. Their small team is based in Lynnwood, Washington. The company provides web design and web development.Visit SiteIndustries
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47
- $25,000+
- 2 - 9 employees
- Everett, WA
Jordan Crown is a nationally known firm based in Seattle, WA. Founded in 2008, their tight-knit team of 11 specializes in creating beautiful websites in the construction, technology, manufacturing, and consulting industries.
Clients
- Scantron
- Comcast
- T-Mobile
Industries
Visit SiteNotable Project
Jordan Crown created a custom WordPress website for a global manufacturing company. They also built various plugins and functionalities to display the products while aligning with the client’s brand identity.
“They were a top-notch web development company to work with.”
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48
- $5,000+
- 2 - 9 employees
- Monroe, WA
Efinitytech is a web design company located in Monroe, Wash. Founded in 1998, Efinitytech's team of around 5 employees specializes in web design, web development, and ecommerce development. Efinitytech's clients are primarily small businesses in the ecommerce, real estate, and consumer product spaces.
Clients
- Safe Consulting
- Woodinville Florist
- Northwest Outdoor Lighting, Inc
- Barn Pros
Industries
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Efinitytech developed two e-commerce websites for a leather and fishing rod sealant production company. Closely following provided designs, their team laid out a detailed step-by-step plan for the build-out.
“They’re a good company with reasonable prices, and they’ll deliver a professional-looking website.”
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49
- $1,000+
- Freelancer employees
- Everett, WA
Established in 2021, Easy Biz Tech LLC is a conversion optimization company. Their small team is headquartered in Everett, Washington. Their services include conversion optimization, search engine optimization, web design, web development, and more.Visit Site -
50
- Undisclosed
- 2 - 9 employees
- Poulsbo, WA
Based in Poulsbo, Washington, Fusion Creative Works is a graphic design agency. The small team provides graphic design, logo, search engine optimization, web design, and more. The firm was launched in 2006.Visit Site -
51
- $1,000+
- 2 - 9 employees
- Tacoma, WA
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.software
- Salesfolks
- truevirtualtours
- murav.ru
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Grinev Software designed and developed a sales firm's website's frontend, hosted on AWS. They built all the data structures and databases, all the marketplace tools, and the customization of the WebRTC UI.
"The hard work, professionalism, and proactive contributions were something that is baked into their DNA."
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52
- $10,000+
- 10 - 49 employees
- Arlington, WA
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.Visit SiteIndustries
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53
- $5,000+
- Freelancer employees
- Bonney Lake, WA
Empac Design, a branding firm, is based in Bonney Lake, Washington. They focus on branding, marketing strategy, web design, and web development and were founded in 2010.Visit Site -
54
- Undisclosed
- 2 - 9 employees
- Puyallup, WA
Web design agency BlueDenham WEB Design & Hosting was founded in 1989. They are in Puyallup, Washington and have a small team. BlueDenham WEB Design & Hosting specializes in web design, web development, graphic design, and IT managed services.Visit Site -
55
- $5,000+
- 2 - 9 employees
- South Hill, WA
Klutch Studio is a small web design company launched in 2022. Their services include web design, branding, conversion optimization, search engine optimization, and more. The agency is based in South Hill, Washington.Visit Site -
56
- $10,000+
- 2 - 9 employees
- Olympia, WA
Tilladelse Marketing Agency is a full service marketing agency located in Olympia, Wash. Founded in 2018, they have a team of 3 employees who specialize in web design, PPC, e-commerce development, and web development for their clients
Clients
- Bid Venues |
- McSwain CPA |
- Koelsch Construction |
- FarmGrit.com |
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tilladelse marketing agency managed web development and supported marketing efforts for an online auction company. They built a new WordPress site and suggested more product-oriented advertising.
“They are very professional, honest, and knowledgeable. We can always count on them.”
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57
- $5,000+
- 2 - 9 employees
- Bothell, WA
Website development company Ravenna was founded in 2007. Their small team is located in Bothell, Washington and focuses on web development, mobile app development, web design, and e-commerce development.
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58
- $5,000+
- 50 - 249 employees
- Redmond, WA
Citizen, Inc. Is a midsize UX company. Founded in 2005, the agency is based in Portland, Oregon and Redmond, Washington. Their team specializes in ux/ui design, mobile app development, web development, digital strategy, and more.Visit SiteIndustries
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