We’ve researched and ranked the best United States HTML5 mobile app development agencies that build sophisticated and high-quality apps that help brands drive more loyal customers and sales. Compare listings by past work, reviews, cost and size to pick the best fit for you.

Best US HTML5 App Development Agencies

8 Companies - Rankings updated: September 04, 2026

Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.

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United States × HTML5 Mobile App Development × Public Safety × Sort by: Avg Hourly Price: High to Low × Clear Filters

  • Build Better App

    Mobile App Development Company in Chicago

    BuildBetterApp.com is a leading Mobile App Development Company in Chicago, delivering innovative, user-centric solutions tailored to transform your ideas into high-performing mobile applications...

    Top Services:

    • Mobile App Development
    • AI Development
    • Blockchain
    • Digital Marketing
    • SEO
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Build Better App Services

    • Mobile App Development
    • AI Development
    • Blockchain
    • Digital Marketing
    • SEO
    • eCommerce
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Spend Bitcoin
    • Magnima
    • Siemens
    • ZeroEyes Inc.
    • Liquor Control Board of Ontario
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Deyel Low-Code Platform

    Build and deliver custom, scalable and extensible software

    Deyel is a no-code/LOW-CODE application platform that allows you to craft mobile and web apps effortlessly while streamlining the development process. Enjoy faster, safer, and more cost-effective processes, accelerating development by 3x. This versatile platform simplifies application development with a...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • IT Services
    • CRM Consulting
    • Show more
    Location
    New York City, New York
    Number of Employees
    50 - 99
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000

    Deyel Low-Code Platform Services

    • Mobile App Development
    • Software Development
    • AI Development
    • IT Services
    • CRM Consulting
    • Staff Augmentation
    • Web Design
    • UI/UX Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AON
    • Arba
    • Zurich Santander
    • Banesco
    • Flybondi
    • Pacífico Seguros
    • Wework
    • Nissan
    • Mazda
    • Grupo Lauman
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Zco Corporation

    Strategize. Develop. Deliver.

    Your business faces unique challenges. Let's work together to create a custom mobile app or web solution to meet those challenges head-on...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IoT
    • AI Development
    • Show more
    Location
    Nashua, New Hampshire
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    8 Projects Listed

    Zco Corporation Services

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • IoT
    • AI Development
    • UI/UX Design
    • Web Development
    • Software Testing
    • VR/AR
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Volkswagen
    • Harvard University
    • BBC America
    • Verizon
    • Liberty Mutual
    • Microsoft
    • Samsung
    • Eversource
    • APR Energy
    • Dartmouth College
    Data sourced from the agency's DesignRush profile

    Zco Corporation Reviews & Testimonials

    • Mark Gratiot
      Mark Gratiot Director of R&D at Streamline Automation
      5.0 ★

      Cross-Platform Review from Mark Gratiot

      In addition to building out a native remote inspection app for iPads, Zco concurrently ported the software to a Xamarin platform for Windows users. Zco has released nine major iterations of the iPad app, each available in the App Store, as well as the initial version of the cross-platform Xamarin build. Their nimble team boasts a wide breadth of skills to match any given situation. Having clear documentation upfront has reduced onboarding time.

    • Katie Matter
      Katie Matter Project Manager at Southwestern Advantage
      5.0 ★

      Mobile App Development Review from Katie Matter

      Zco Corporation provided full-stack mobile app development to an educational resource retail organization. They worked in Unity to build a cross-platform resource for users to advance through various curricula. The app has successfully been moved into preproduction and the second phase of development, completely satisfying project stakeholders with the quality of both its designs and functionality. The Zco Corporation team is highly creative and collaborative throughout their work.

    • J. Michael Webb
      J. Michael Webb CEO at CheckMySpot
      5.0 ★

      Startup Review from J. Michael Webb

      J. Michael Webb from CheckMySpot chose Zco Corporation for app development due to its expertise. Zco adeptly developed a hybrid mobile teledermatology platform and an admin website, demonstrating excellent communication, responsiveness, and innovation. Despite the project's evolving and innovative nature, Zco seamlessly integrated Webb's intent and met all challenges, leaving him with no suggestions for improvement. (Verified via email/call)

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.8 4.8 (5)
    4.8 4.8 (18)

  • TekReboot

    Refine, Re-innovate, Rediscover with TekReboot

    Delegate your business solution development to our trusted experts in the field of IT services, Software (full-stack) development, Web design, App design, and Digital marketing...

    Top Services:

    • Digital Services
    • Web Development
    • Software Development
    • Mobile App Development
    • Web Design
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000

    TekReboot Services

    • Digital Services
    • Web Development
    • Software Development
    • Mobile App Development
    • Web Design
    • SEO
    • CRM Consulting
    • Cloud Consulting
    • Email Marketing
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Honeywell
    • Unilever
    • Persistent
    Data sourced from the agency's DesignRush profile
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  • Appstract LLC

    We transform your ideas into applications.

    At Appstract, we specialize in crafting solutions that deliver unforgettable user experiences by leveraging innovation and adhering to best practices in mobile and web application development and design. Our mission is to ensure that every interaction with our products leaves a lasting impression, driving...

    Top Services:

    • Software Development
    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Staff Augmentation
    • Show more
    Location
    Coconut Creek, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed

    Appstract LLC Services

    • Software Development
    • Mobile App Development
    • Product Design
    • UI/UX Design
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AbInBev
    • Droguería del Sud
    • Prosegur
    • Mostaza
    • Temis Lostaló
    • Xapo Bank
    • Torc
    • Syngenta
    • Mundi
    • Bull Market Brokers
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (1)

  • Venrup

    Hire vetted remote designers and developers in 24 hours!

    VENRUP connects startups and enterprises with the top 1% remote talent in 24 hours. Create or augment existing teams fast with vetted talent...

    Top Services:

    • Logo Design
    • Graphic Design
    • Design Services
    • Product Design
    • Web Design
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000

    Venrup Services

    • Logo Design
    • Graphic Design
    • Design Services
    • Product Design
    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Mobile App Development
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Galea Health
    • Sales Source
    • Makai Labs
    • FMtv
    • Allianz Global Corporate & Specialty SE
    • Astellas Pharma
    • Wayfinder
    • Karri
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Aliph Marketing Studio

    We Craft Human Solutions That Work

    Since 2021, our small yet dedicated team has thrived on solving intricate problems and powering digital transformation. With extensive experience in online entrepreneurship and cutting-edge development, were here to bring your ideas to lifeefficiently, reliably, and with a masterful touch of innovation...

    Top Services:

    • Web Development
    • SEO
    • DevOps Consulting
    • Managed Services
    • WordPress Website Design
    • Show more
    Location
    Jersey City, New Jersey
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000

    Aliph Marketing Studio Services

    • Web Development
    • SEO
    • DevOps Consulting
    • Managed Services
    • WordPress Website Design
    • eCommerce Development
    • Web Design
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Secure Security Guards Ltd
    • Craftsman Décor
    • Eastsite Studios
    • Breathe Vibes
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Mal Dev Technologies LLC

    Delivering Top-Notch Solutions in Software, Website, and App Development.

    Maldev Technologies delivers top-rated, customized web, mobile app, and software solutions to businesses, helping them innovate and grow with cutting-edge technology and industry expertise...

    Top Services:

    • Graphic Design
    • Web Development
    • Mobile App Development
    • Software Development
    • SEO
    • Show more
    Location
    Hyattsville, Maryland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $15/hr

    Mal Dev Technologies LLC Services

    • Graphic Design
    • Web Development
    • Mobile App Development
    • Software Development
    • SEO
    • Email Marketing
    • eCommerce
    • Branding
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Beckett Corp
    • Insulation Hub
    • Virtual Community Risk Reduction
    • Alice Cleaning Services LLC
    • WeatherPost
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

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