Find the top mobile app development companies in Washington that create high-performing and user-friendly apps to help businesses drive conversions. Use our practical tool to filter them by cost, team size and client reviews.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
User-centric Digital Product and UI/UX Design Agency:As a result-driven design agency, we specialize in designing digital products that seamlessly integrate with your strategic business objectives. Lets transform your vision into a pixel-perfect reality!...
Top Services:
- Product Design
- Web Design
- UI/UX Design
- Design Services
- Branding
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- Location
- Seattle, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 16 Projects Listed
Sam's Solution is a dynamic software company specializing in custom software, web and mobile app development, IT consulting, and digital transformation. We deliver innovative, tailored tech solutions that help businesses streamline operations, boost efficiency, and achieve their strategic goals...
Top Services:
- Mobile App Development
- Web Development
- AI Development
- Digital Marketing
- eCommerce Development
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- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 8 Projects Listed
NTSprint helps U.S. businesses accelerate growth through AI-powered software, dedicated nearshore engineering teams, and scalable cloud solutions. With 10+ years of experience and 500+ projects delivered, we provide real-time collaboration, faster delivery, and measurable business impact...
Top Services:
- Software Development
- AI Development
- Cloud Consulting
- Web Development
- Mobile App Development
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- Location
- Bothell, Washington
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
Matellio is a leading software engineering studio, recognized globally for delivering intelligent solutions powered by Artificial Intelligence and Machine Learning. We specialize in developing customized AI solutions tailored to various needs of businesses under different industry verticals...
Top Services:
- AI Development
- IoT
- DevOps Consulting
- Cloud Consulting
- Mobile App Development
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- Location
- Seattle, Washington
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
Tekbyt is a digital product studio that designs and develops websites, SaaS platforms, web and mobile apps, e-commerce solutions, and AI-powered business systems for startups and growing companies...
Top Services:
- Mobile App Development
- Software Development
- Blockchain
- AI Development
- Web Design
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
Jelvix is a global tech partner with 15+ years of experience, empowering industry leaders and startups. With 450+ IT experts, we drive digital transformation across Europe, North America, Nordics, and Southeast Asia...
Top Services:
- Software Development
- Mobile App Development
- VR/AR
- AI Development
- IoT
- Show more
- Location
- Seattle, Washington
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $70/hr
- Portfolios Count
- 10 Projects Listed
Serbyte Web Design & Development builds custom websites that function as growth systems, combining web design, Next.js development, SEO, analytics, lead capture, and automation to help businesses turn traffic into leads and sales...
Top Services:
- Web Design
- SEO
- Web Development
- Software Development
- UI/UX Design
- Show more
- Location
- Kirkland, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Qodestar is a digital studio focused on building clean, high-performing mobile apps and digital experiences. We partner with startups, growing businesses, and creative teams to transform ideas into intuitive mobile solutions through thoughtful design and development...
Top Services:
- Mobile App Development
- Product Design
- UI/UX Design
- Digital Marketing
- SEO
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed

Bilberrry
VerifiedVerified by the DesignRush team for authenticity and credibility.AI LeaderRecognized for strong visibility across AI-powered search and answer engines.Award Winning Web Design & Development Agency
Since 2009, Bilberrry has been producing cross-platform, native, and hybrid mobile apps that drive business growth. With expertise in 24+ technologies, it has delivered custom solutions for clients like BusinessWire, GoFundMe, and Deloitte...
Top Services:
- Web Development
- Web Design
- Software Development
- WordPress Website Design
- eCommerce Development
- Show more
- Location
- Seattle, Washington
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 19 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBilberrry Services
Data sourced from the agency's DesignRush profileDeloitte Delta Airlines PepsiCo SEE International Impinj Lockheed Martin OfferUP The Life You Can Save Snohomish County University of Washington
Bilberrry Reviews & Testimonials

eCommerce Development Review from Kelly Johnson
Since partnering with Bilberry, we have seen a marked improvement in our websites stability and performance. Their team manages our backlogged issues with such efficiency that our monthly development spend has actually decreased. Estimates are consistently accurate, and we appreciate their proactive communication; if a projects scope evolves, they provide an updated estimate for approval before moving forward. Our monthly sprints are now seamless thanks to their reliable planning and ability to scale resources rapidly to meet even the tightest deadlines.

Web Development Review from Adam Ely, PMP
As Director of Operations at Sands Investment Group, I partnered with Bilberrry to lead the redesign and rebuild of our website, enhance our marketing operations, and streamline internal workflows. We chose Bilberrry for their strong technical capabilities, cultural alignment, and outstanding reputation. The project followed a well-structured four-phase process: discovery, design, development, and launch. From the beginning, Bilberrry took a strategic and collaborative approach, conducting workshops and technical audits to define a scalable architecture and intuitive user experience. Their team went on to create custom designs for more than 20 pages, build a flexible design system, and ensure the site met key standards for SEO and accessibility.On the development side, they customized a robust content management system tailored to our needs, incorporating dynamic listing features such as saved searches, email alerts, and early-access content for select users. The new site also connected seamlessly with our internal tools, enabling greater efficiency and automation across teams.The impact was immediate and significant: we saw a dramatic reduction in manual processes. Our team is now better equipped to manage content independently, while the platform itself is built for long-term scalability and performance.Throughout the process, Bilberrry was responsive, professional, and incredibly easy to work with. They communicated clearly, incorporated feedback quickly, and consistently brought thoughtful, strategic ideas to the table. Bilberrry's unique blend of strategic insight, technical depth, and design acumen made them an invaluable partner in creating a high-performing, visually polished digital platform tailored to our business.

Web Design Review from Ari Bixhorn
Bilberrry’s work gave our new website improved performance, greater SEO flexibility, and pages that are much easier to build. They delivered everything on time and kept communication proactive throughout. Their strong project management, technical expertise, and responsiveness built real trust during the process.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsOur vision is to see businesses of all sizes reach their full potential by using modern marketing strategies and that are proven to help scale businesses either in size, reach, revenue, or all three...
Top Services:
- SEO
- PPC
- Digital Marketing
- Web Design
- Web Development
- Show more
- Location
- Seattle, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...
Top Services:
- AI Development
- Software Development
- Web Development
- Mobile App Development
- Blockchain
- Show more
- Location
- Bellevue, Washington
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
We are a compact yet dedicated team of web designers and developers, specializing in tailored design, programming, and Drupal website development. Our focus is on crafting high-quality, aesthetically pleasing Drupal websites that empower our clients. We specialize in constructing well-structured websites that...
Top Services:
- Web Development
- Web Design
- Graphic Design
- eCommerce Development
- Branding
- Show more
- Location
- Battle Ground, Washington
- Number of Employees
- Under 49
- Average Hourly Rate
- $120/hr
- Minimal Budget
- $1,000 - $10,000
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