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.

Best Washington Mobile App Developers

82 Companies - Rankings updated: September 04, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

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United States × Washington × Sort by: Avg Hourly Price: High to Low × Clear Filters

  • ELEK+RIK

    High Voltage Code Since 2010

    High Voltage Code Since 2010

    ELEK+RIK: Web App Development, Mobile App Development for iOS & Android, AI Integration & Development Experts for Long-Term US Projects since 2010...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • VR/AR
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    18 Projects Listed
    View Profile
    4.9 4.9 (19)
    5.0 5.0 (3)

  • Mobcoder

    AI-Native, Business-Ready Development Services. Engineered to Scale

    AI-Native, Business-Ready Development Services. Engineered to Scale

    At Mobcoder AI, certified engineers and data scientists help you identify high-ROI AI use cases and operationalize them at scale. With 150+ deployments, CMMI Level 3 certification and 12+ years of experience, we build AI solutions governed by design and model-agnostic frameworks...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • Web Development
    • VR/AR
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed
    View Profile
    4.9 4.9 (15)
    4.9 4.9 (11)

  • Uruit

    A Nortal company

    A Nortal company

    We build web & mobile apps for leading brands...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • AI Development
    • UI/UX Design
    • Show more
    Location
    Kirkland, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed
    View Profile

  • Matellio Inc.

    We Make the Impossible Case Possible.

    We Make the Impossible Case Possible.

    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
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    26 Projects Listed
    View Profile
    4.1 4.1 (1)

  • Safztech

    Your Vision Engineered To Perfection

    Your Vision Engineered To Perfection

    Safztech is committed to quality, client satisfaction, and measurable results, delivering tailored solutions that elevate brands, enhance user engagement, and drive business growth...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Social Media Marketing
    • Branding
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    View Profile

  • Pantrosoft

    Empowering small business owners with the magic of software!

    Empowering small business owners with the magic of software!

    Software development agency based in Seattle, Washington, providing a personal touch for small business owners. We help with Custom Software Development, Mobile App Development, Web Development, Data Engineering, UI/UX Design, and IT Consulting...

    Top Services:

    • Web Development
    • UI/UX Design
    • IT Services
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • ALMAX Design Agency

    Any-Deadline. Any-Budget. Any-Niche.

    Any-Deadline. Any-Budget. Any-Niche.

    Top-quality design & development. Were here to help grow your business through design! With daily updates and custom approach to each project...

    Top Services:

    • Graphic Design
    • Branding
    • Logo Design
    • Design Services
    • Package Design
    • Show more
    Location
    Spokane, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (14)

  • Itirra

    Small enough to care, big enough to get the job done

    Small enough to care, big enough to get the job done

    A boutique technology consulting firm with passion, care, and innovation at its core...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • IT Services
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    View Profile
    5.0 5.0 (2)

  • Markup Designs

    Mark your Brand Up

    Mark your Brand Up

    Global Leader in Mobile App Development & Digital Engineering...

    Top Services:

    • Mobile App Development
    • Software Development
    • Blockchain
    • AI Development
    • IoT
    • Show more
    Location
    Sammamish, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.0 4.0 (152)

  • Triffid Marketing

    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...

    Top Services:

    • Email Marketing
    • CRO
    • Digital Marketing
    • PPC
    • SEO
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.4 4.4 (21)

  • Arcade Dev House

    Australia-Based Product Studio

    Australia-Based Product Studio

    We support entrepreneurs and companies as they reach a global audience with amazing digital products...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • Hexacta

    Custom-Made Software Development Company

    Custom-Made Software Development Company

    Our work spans a variety of sectors, including financial services, energy, retail, entertainment, telecommunications, government, and technology...

    Top Services:

    • Web Design
    • Web Development
    • UI/UX Design
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Kirkland, Washington
    Number of Employees
    500 - 999
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.8 4.8 (17)

  • DigitalMara

    DigitalMara - Expertise in Java, Python, NodeJS, PHP, React, Angular, QA/AQA

    DigitalMara - Expertise in Java, Python, NodeJS, PHP, React, Angular, QA/AQA

    At DigitalMara, we are a company of high-qualified tech professionals with Estonian roots, specializing in top-notch IT solutions for startups, small/medium businesses, and enterprise companies. Our engineers have a wide range of experience with technologies and domains, including Java, Python, NodeJS, .NET...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • IT Services
    • Show more
    Location
    Bellingham, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    5.0 5.0 (1)

  • VAO

    VAO: Full-Stack Web and Mobile Development for Your Business

    VAO: Full-Stack Web and Mobile Development for Your Business

    At VAO, over 80% of our business comes from our current clients' referrals...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    4.7 4.7 (3)

  • Zazz

    Modern IT. Built Secure. Delivered Right.

    Modern IT. Built Secure. Delivered Right.

    Zazz uses an architecture-first, risk-aware, and outcome-driven development approach to produce 800+ cross-platform and native applications and accelerate time-to-value by 40%. Its services cover app development, design, audit, testing, modernization, and maintenance...

    Top Services:

    • Mobile App Development
    • IT Services
    • Software Development
    • Staff Augmentation
    • IT Compliance Solution
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $45/hr
    Portfolios Count
    36 Projects Listed
    View Profile
    5.0 5.0 (76)

  • Elisol

    Forging Digital Visions

    Forging Digital Visions

    Elisol stands as a dynamic force in the digital realm, driven by a commitment to empowering businesses through innovative solutions...

    Top Services:

    • Mobile App Development
    • Web Development
    • UI/UX Design
    • WordPress Website Design
    • Digital Services
    • Show more
    Location
    Moses Lake, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
    View Profile

  • Sigma Software

    Superior Business Solutions

    Superior Business Solutions

    Sigma Software specializes in developing software and is a globally distributed team of more than 2000 skilled IT professionals, spanning 12 countries including the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Australia, Austria, Ukraine, and more. With a track record of over 20 successful years, we take...

    Top Services:

    • Software Development
    • Web Design
    • Mobile App Development
    • VR/AR
    • Business Consulting
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    14 Projects Listed
    View Profile
    4.6 4.6 (4)
    4.8 4.8 (81)

  • NTSprint LLC

    Maximizing Ideas

    Maximizing Ideas

    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
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    13 Projects Listed
    View Profile
    5.0 5.0 (2)

  • Neaxus

    Innovative Software Solutions for All

    Innovative Software Solutions for All

    Empowering businesses with cutting-edge software development services. Been a digital solution provider since 2018. Lets transform your digital presence together...

    Top Services:

    • Software Development
    Location
    Tacoma, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    View Profile

  • 9series

    Handcrafted Technology Solutions

    Handcrafted Technology Solutions

    At 9series, we help organizations move beyond traditional software by building intelligent systems powered by AI...

    Top Services:

    • Mobile App Development
    • AI Development
    • IoT
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Portfolios Count
    3 Projects Listed
    View Profile

  • Artic Consulting

    Accelerate Business Growth With Tailored Microsoft Solutions

    Accelerate Business Growth With Tailored Microsoft Solutions

    Artic Consulting is a global technology consulting firm specializing in Microsoft-based solutions that help organizations innovate, optimize operations, and achieve sustainable growth. By combining deep technical expertise with industry insight, the company delivers data-driven, secure, and scalable solutions...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Software Testing
    • IT Compliance Solution
    • Show more
    Location
    Sammamish, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    5.0 5.0 (2)

  • Softleo LLC

    An Artificial Intelligence Solution Company.

    An Artificial Intelligence Solution Company.

    Softleo LLC. is led by highly qualified, creative and thoroughly experienced IT Professionals with an aim to deliver value and unlock the true potential of Organizational IT Assests and investments through innovative Artificial Intelligence and Machine Learning solutions. Softleo is having head office in...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • Mobile App Development
    • Digital Marketing
    • Show more
    Location
    Bothell, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (5)

  • OnyxTec

    Spark to Success

    Spark to Success

    OnyxTec provides full stack engineering solutions as well as online and mobile UX/UI design services to help your customers find you. In order to free up your time and enable you to focus on the definition of additional objectives, our specialists will ensure the efficient design and rapid development of...

    Top Services:

    • SEO
    • PPC
    • Web Development
    • Web Design
    • Software Development
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • PIT Solutions

    Turn Your Digital Dreams Into Reality

    Turn Your Digital Dreams Into Reality

    PIT Solutions is a technology-driven digital services provider with a people-first culture and a proven track record of delivering impactful solutions...

    Top Services:

    • Web Development
    • UI/UX Design
    • IT Services
    • Managed Services
    • Mobile App Development
    • Show more
    Location
    Bellevue, Washington
    Number of Employees
    500 - 999
    Average Hourly Rate
    $35/hr
    View Profile
    4.5 4.5 (153)

  • RP UXCollab Pvt. Ltd.

    Seeking Expert Digital Product Designers? Let's Connect! | Clutch Award Recipient 2024

    Seeking Expert Digital Product Designers? Let's Connect! | Clutch Award Recipient 2024

    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
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Portfolios Count
    16 Projects Listed
    View Profile
    4.7 4.7 (4)

  • Sam's Solution

    Software Application Masters.

    Software Application Masters.

    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
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Portfolios Count
    8 Projects Listed
    View Profile

  • UKAD-group

    Build a team you can rely on!

    Build a team you can rely on!

    Development services delivered with a personal approach...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    Location
    Seattle, Washington
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Portfolios Count
    3 Projects Listed
    View Profile

  • Appex Games

    Crafting unforgettable gaming adventures.

    Crafting unforgettable gaming adventures.

    At Appex Games, We bring imagination to life through immersive, high-quality game development. Specialization in PC, mobile and console games. We create games that people love to explore. Let's build something extraordinary together!...

    Top Services:

    • VR/AR
    • Mobile App Development
    Location
    Kent, Washington
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (1)

  • Digital Paisa

    Top-tier Digital Solutions

    Top-tier Digital Solutions

    Digital Paisa Money is an IT company focused on helping businesses grow through innovative digital solutions. They specialize in website design, SEO, and social media marketing, enabling brands to strengthen their online presence and achieve measurable results...

    Top Services:

    • Digital Services
    • Product Design
    • Digital Marketing
    • UI/UX Design
    • Web Development
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    View Profile

  • HyperBeans

    Bringing creativity and ideas to life

    Bringing creativity and ideas to life

    We provide innovative, highly functional, visually appealing and user-friendly web, mobile applications, ERP's as well as digital marketing solutions that drive organizational growth and makes your brand a success. We are Experts in big data engineering, product transformation, and e-commerce solutions. We...

    Top Services:

    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Web Design
    • Mobile App Development
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Probey Services

    Verified Verified by the DesignRush team for authenticity and credibility.
    World's #1 Rated & Reviewed App, Website & Software Development Company

    World's #1 Rated & Reviewed App, Website & Software Development Company

    Specializing in iOS, Android, and Flutter app development, Probey Services builds custom solutions that grow with businesses. Backed by 12+ years of experience and a team of 320+ specialists, it has delivered 1,800+ projects and served 120+ clients, including Waze and the Cleveland Clinic...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    94 Projects Listed
    View Profile
    5.0 5.0 (110)
    5.0 5.0 (1)

  • United Monks Technologies

    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...

    Top Services:

    • UI/UX Design
    Location
    Seattle, Washington
    Number of Employees
    Under 49
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

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