Mobile App Agencies in Seattle

Discover top-rated Seattle mobile app developers vetted for excellence. Compare portfolios and pricing from local agencies ready to build your next app

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All Mobile App Developers in Seattle

Dot Com Development logo

Dot Com Development

Verified

On Time ... On Budget ... Solutions Exceeding Expectation

Dot Com Development is a trusted🤝 and awarded🏆design and development technology company providing custom solutions for companies of all sizes and industries. We provide end to end application planning, design, development, testing and support services with expertise in the latest cutting edge, high performing, and future proof technologies. We’ll get your digital product to market 30% faster than our competitors, improve development costs by up to 40% and create user experiences that get 5x-10x more user engagement.

Our services include:

✅ Strategic Planning and Consulting

✅ UX/UI Design

✅ Prototyping and POC's

✅ Web Application Development

✅ Website Design and Development

✅ Mobile Application Development

✅ Artificial Intelligence Development

✅ eCommerce Development

✅ API Development and Integration

✅ Data and Analytics

✅ Cloud Development

✅ CRM / ERP Development

✅ DevOps / Cloud Services

✅ Support and Maintenance

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5.0 (10 review)
40 employees
Scottsdale, United States
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Designli logo

Designli

Verified

Building apps is hard... when you're distracted.

When hiring an app or web development team to build custom software, one variable matters most: are the developers fully dedicated to your success, or are you one client of many?

Designli brings together designers, engineers, and business minds into on-demand, dedicated product teams that pour themselves, full-time, into the success of your app or web-app initiative.

Existing as your dedicated software engineering department, we'll work together to solve your most pressing business problems with custom software.

How it Works, and What We Can Build:

  • Designli designs, develops, and launches beautiful apps and web-apps that you'll be proud to own, with a process that makes sense.
  • Most importantly, we'll do this with a team that is assigned full-time to your project.
  • With a step-by-step process, we'll begin by creating a clickable simulation of the User Interface of your app or website, and a development-ready backlog with each feature defined, estimated, and ready to code.
  • Entrepreneurs use this output for fundraising. Business leaders use it for internal buy-in and market validation.
  • When you choose to move into Development, our staff will be assigned full-time to you, and this team will be composed of the disciplines you need.
  • Left alone, designers will create art projects. Engineers will create science fair gizmos. Business minds will create spreadsheets. Your development team will include all three, singularly focused on your success.

For more information and to see our extensive work portfolio, visit https://designli.co

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5.0 (16 review)
50 employees
Greenville, United States
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Zazz logo

Zazz

Verified

Modern IT. Built Secure. Delivered Right.

Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We specialize in solving complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation - so our clients can move faster, scale smarter, and innovate with confidence.

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5.0 (1 review)
250 employees
Seattle, United States
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Probey Services logo

Probey Services

Verified

World’s #1 Rated & Reviewed App & Web Development Partner

World’s #1 Rated & Reviewed App & Web Development Partner, Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. Headquartered in London, UK, with a strong presence in India and 11 global branches, we combine global reach with deep technical expertise.

Our 320+ specialists have successfully delivered 1900+ projects over the last 10+ years, helping businesses scale with mobile app development, website design & development, enterprise software solutions, AI-powered digital marketing, branding, and social media management.

We proudly serve 30+ industries including retail, e-commerce, healthcare, fintech, education, travel, logistics, luxury, and more.

Probey Services is rated as the #1 Tech Partner globally on Clutch, GoodFirms, and Trustpilot, we stand out for our system-driven execution, advanced tech stack, and client-first approach.

Our Services:

We deliver end-to-end digital solutions that don’t just work, they win.

  • Mobile Apps – iOS & Android (React Native, Flutter, Kotlin, Swift, Java).
  • Websites – Fast, stunning, conversion-driven (Shopify, WordPress, Magento, Joomla, Wix, Umbraco).
  • Custom Software – ERP, CRM, SaaS, and cloud platforms (React, Node.js, Angular, .NET, Python, PHP, Ruby, Java).
  • Digital Marketing – AI-powered SEO, PPC, and performance campaigns (SEMrush, Ahrefs, Moz, Google Ads, Analytics).
  • Branding – Logos, identity kits, merchandise, collaterals (Figma, Adobe Suite, CorelDRAW).
  • Social Media – Strategy, UGC/CGC, influencer collabs (Instagram, LinkedIn, YouTube, Pinterest).

Awards & Recognition:

  • Proudly recognized worldwide:
  • Top Mobile App Development Company – Clutch (2025)
  • Best Web & Design Agency – DesignRush (2024)
  • Global Leader – GoodFirms (2024)
  • Top 10 IT Companies – G2 (2024)
  • Excellence in Digital Innovation – AppFutura (2024)
  • Clutch Global & Champion Badge (2023 & 2024)
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5.0 (132 review)
1000 employees
New York, United States
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Uinno logo

Uinno

Verified

We build products like we own them.

Uinno is a product development agency compiled of engineers and technology experts with an ownership mindset who are solely focused on solving business challenges via creating future-ready apps, websites, and digital solutions.

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1.0 (0 review)
60 employees
Tallinn, Estonia
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Fulminous Software logo

Fulminous Software

Verified

WE LOVE TO BUILD ASK FOR IT AND HAVE IT

We are Fulminous Software, a skilled web and mobile app development company with a proven history of creating popular and profitable apps. We're known for our knack for enhancing existing apps and websites to make them even better, ensuring people keep downloading and enjoying them. Our dedicated team is here to turn your ideas into reality.

The company’s biggest strength is its team which I a mix of most ingenious and focused individuals who are adroit in whatever they do. They believe in delivering flawless and reliable solutions to clients that match business needs and drive business growth. We are looking for strategic partnerships from around the globe. If you are interested please contact us today.

Client's Feedback About US:

https://clutch.co/profile/fulminous-software-private#highlights

https://www.bark.com/en/in/company/fulminous-software-private-limited/9AKJO/

Our Key services:

* Custom Software development

* Mobile App Development (Android App, iPhone App, Cross-Platform App)

* Custom Game Development (AR, VR, iOS, Android, NFT, Metaverse, 2D, 3D)

* Salesforce Development (Lightning, Implementation, Consulting)

* Web Development

* Mobile Game Development

* Desktop Game Development

* Xamarin App Development

* Wearable Devices App Development

* Enterprise App Development

* CRM & ERP Development

* Digital Marketing

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5.0 (37 review)
124 employees
Clarendon County, United States
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Bits Orchestra logo

Bits Orchestra

Verified

Software symphony for your business growth🚀

Bits Orchestra is a web and mobile development company with over 10 years of experience as a trusted tech partner for companies across the US, Europe, and Australia. We combine deep technical expertise with a strong commitment to understanding each client’s unique goals.

Our team of 50+ developers has delivered more than 100 projects for companies in the US, Europe, and Australia - ranging from small businesses to growing mid-sized organizations. Our clients include Shaw Industries (manufacturing), KONI (manufacturing), the Harold Grinspoon Foundation (non-profit), and over 50 other organizations across industries like education, digital services, and retail.

Our approach is simple: we listen, we understand, and we deliver. We always aim to deliver cost-efficient solutions that provide real, measurable value.

From building new websites from the ground up to platform upgrades, we focus on turning your vision into solid, working digital solutions.

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5.0 (3 review)
50 employees
Orlando, United States
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Axolot Technologies, LLC logo

Axolot Technologies, LLC

Work with Axolot Technologies to know how we are using the power of IT to move the world forward. We make IT happen!

Ready to take your online presence to the next level? Our innovative digital marketing agency offers creative solutions for your business
1.0 (0 review)
3 employees
Seattle, United States
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Shiftboard logo

Shiftboard

Smarter Workforce Scheduling

Shiftboardâs employee scheduling software enables adaptive operations that maximize shift coverage and improve employee job satisfaction.
1.0 (0 review)
4 employees
Seattle, United States
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Shaw + Scott logo

Shaw + Scott

Shaw/Scott is a digital consulting agency that helps brands create engaging customer experiences through technology.

Shaw/Scott is a digital consulting agency that helps brands create engaging customer experiences through technology.

1.0 (0 review)
50 employees
Seattle, United States
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twelve23 logo

twelve23

Twelve23. Your trusted agency partner for web-based solutions, support and consulting.

Twelve23 is a strategy, branding, design and development studio located in the heart of Seattle. Our tight-knit community of creatives have a passion for solving complex problems and producing beautiful finished products. We start each project by familiarizing ourselves with your story, then develop a plan that helps you attain your goals. We offer an extra set of hands to help agencies build their digital capability, and we create successful foundations for startups. In our ten years of business, we have evolved into an all-inclusive digital agency and have established countless longstanding relationships with our clients.

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1.0 (0 review)
11 employees
Seattle, United States
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Formative logo

Formative

Driven By Work That Matters

Formative is a different kind of company; part digital agency, part incubator, and part consultancy. We're a small shop with big ideas and the experience
1.0 (0 review)
45 employees
Seattle, United States
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Nalu., LLC logo

Nalu., LLC

 
1.0 (0 review)
4 employees
Seattle, United States
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reactionDrive logo

reactionDrive

 
1.0 (0 review)
9 employees
Seattle, United States
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EXCLAIM, LLC logo

EXCLAIM, LLC

Founded in Seattle, Washington in 1998, EXCLAIM is a full service, performance-driven design,

 
1.0 (0 review)
9 employees
Seattle, United States
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Hammer Corp logo

Hammer Corp

 
1.0 (0 review)
18 employees
Seattle, United States
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Engine Interactive logo

Engine Interactive

 
1.0 (0 review)
47 employees
Seattle, United States
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Smashing Ideas logo

Smashing Ideas

Smashing Ideas is a creative and digital agency providing mobile, internet marketing, web and CMS services that increase customer engagement and loyalty.
1.0 (0 review)
109 employees
Seattle, United States
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Plantain Media logo

Plantain Media

 
1.0 (0 review)
7 employees
Seattle, United States
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LiveAreaLabs logo

LiveAreaLabs

Ecommerce web design and development agency LiveAreaLabs creates flagship digital experiences for global passion brands.
1.0 (0 review)
27 employees
Seattle, United States
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