DesignRush experts identified the best mobile app development companies in Seattle that build high-performance applications for various industries. View their profiles and evaluate their expertise, client reviews, and more to select the best agency partner for your business.

Best Seattle Mobile App Developers

55 Companies - Rankings updated: April 03, 2026

We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.

United States × Washington × Seattle ×
  • Great is Just the Beginning

    Great is Just the Beginning

    United Monks excels in helping businesses make the journey from ideation & strategy to project execution with a host of solutions like UI/UX, Mobile App Development, E-Commerce, Web & SaaS Applications, Social Media Marketing, Graphic Design, Content Strategy, Content Writing, Branding, and Cloud  [... view United Monks Technologies profile ]
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
  • Humanizing technology through inclusive design.

    Humanizing technology through inclusive design.

    Hello! My name is UX designer with a desire to create social change. With a drive to provide usability solutions to complex applications, I want to focus on creating opportunities and awareness to marginalized communities.  [... view Jamie Brehm profile ]
    Location
    Seattle, Washington
    Number of Employees
    Under 49
  • Efficiency. Reliability. Scalability.

    Efficiency. Reliability. Scalability.

    Verttx is a premier website and mobile app development agency committed to transforming clients' concepts into reality with bespoke software solutions. Its skilled developers use the latest tools and technologies to create scalable, reliable, and maintainable software. Verttx ensures continuous support and  [... view Verttx profile ]
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • Navigating The Path For Digital Transformation!

    Navigating The Path For Digital Transformation!

    RobLinx is an esteemed tech company based in Ahmedabad, Gujarat, known for its excellence in web development, cloud-based software development, and commitment to client success  [... view RobLinx Infotech LLP profile ]
    Location
    Seattle, Washington
    Number of Employees
    Under 49
  • We Help Ambitious Businesses Increase Profit

    We Help Ambitious Businesses Increase Profit

    Our goal is to offer you the top digital marketing strategies and utilize our professional expertise to your advantage. We assess and understand your business requirements to create a personalized and effective digital campaign, ultimately assisting you in succeeding online.  [... view Triffid Marketing profile ]
    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.