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

6 Companies - Rankings updated: September 03, 2026

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

HTML5
Energy & Mining
$50,000 & Up
Sort by: Sponsored
United States × HTML5 Mobile App Development × Energy & Mining × $50,000 & Up × Clear Filters

  • Matellio Inc.

    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
    Denver, Colorado
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    26 Projects Listed

    Matellio Inc. Services

    • AI Development
    • IoT
    • DevOps Consulting
    • Cloud Consulting
    • Mobile App Development
    • Software Development
    • Web Design
    • Web Development
    • Big Data Analytics
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hewlett Packard Enterprise
    • Tracking Genie
    • Brideside
    • Air Fusion
    • vCard Global
    • Codexa
    • PTGI
    • INSPRO
    • NERVVE
    • GoShow
    Data sourced from the agency's DesignRush profile

    Matellio Inc. Reviews & Testimonials

    • Undisclosed
      Undisclosed CTO at V Card Global
      4.7 ★

      Web Development Review from Undisclosed

      Matellio is one of the best organizations I have had a chance to work with. Their unique approach to becoming an integrated extension of our corporate programming staff provides us with the ability to design and implement solutions in an ever changing environment.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.1 4.1 (1)

  • Pastilla

    For People. For Progress.

    Pastilla is a full-service agency based in Los Angeles. We partner with public agencies, nonprofits, and global brands to turn complex missions into clear brand and digital experiences that build trust and move communities to action...

    Top Services:

    • Branding
    • Design Services
    • Graphic Design
    • Web Design
    • Web Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $185/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    18 Projects Listed

    Pastilla Services

    • Branding
    • Design Services
    • Graphic Design
    • Web Design
    • Web Development
    • Mobile App Development
    • Digital Marketing
    • Social Media Marketing
    • Content Marketing
    • Video Production
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • City of LA Recreation & Parks
    • Black Girls Code
    • Sacramento Public Library
    • Consumer Technology Association
    • Clean Power Alliance
    • Microsoft
    • Metrolink
    • Hollywood Foreign Press Associations (HFPA)
    • Disney
    • Lossan
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (3)

  • Innolab

    Innolab AI builds revenue engines, not just software. Jane creates pipeline. Luna closes it.

    Innolab AI builds AI systems that sell for you. Jane replaces SDR teams with automated, hyper-personalized outbound. Luna calls and books meetings 24/7 with human-like conversations. We help B2B leaders generate pipeline, cut admin time, and scale revenue without chaos...

    Top Services:

    • AI Development
    • Mobile App Development
    • Web Development
    • Software Testing
    • Blockchain
    • Show more
    Location
    Columbus, Ohio
    Number of Employees
    50 - 99
    Average Hourly Rate
    $59/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    2 Projects Listed

    Innolab Services

    • AI Development
    • Mobile App Development
    • Web Development
    • Software Testing
    • Blockchain
    • Staff Augmentation
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Flonest
    • Dollar Shave Club
    • Buddy Lee Jump ropes
    Data sourced from the agency's DesignRush profile

    Innolab Reviews & Testimonials

    • Buddy Lee
      Buddy Lee CEO at Buddy Lee Jump Ropes
      5.0 ★

      B2C Apps Review from Buddy Lee

      Innolab delivered exactly what we needed a high quality, AI powered jump training app with realtime feedback and sleek design. The team was professional, collaborative, and hit every milestone on time. Highly recommend them for any innovative app development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.3 4.3 (1)

  • Devox Software

    AI-accelerated engineering partner for legacy modernization and smart enterprise solutions dev

    Founded in 2018, Devox Software partners with mid-market and enterprise businesses to modernize aging systems, engineer new digital products, and bring AI into production the right way: safely, incrementally, and with measurable ROI...

    Top Services:

    • Software Development
    • Cloud Consulting
    • AI Development
    • DevOps Consulting
    • Mobile App Development
    • Show more
    Location
    Miami, Florida
    Number of Employees
    100 - 249
    Average Hourly Rate
    $75/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed

    Devox Software Services

    • Software Development
    • Cloud Consulting
    • AI Development
    • DevOps Consulting
    • Mobile App Development
    • Big Data Analytics
    • Business Consulting
    • IoT
    • Digital Strategy
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Syngenta
    • Truevo
    • CureMedia
    • Optherium
    • ActivePlace
    • Ferretly
    • SwissMentor
    • Damundo
    • Espressotoria
    • ILVE
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (9)

  • Espresso Moon

    Designing the Digital Future.

    A top custom software development firm dedicated to delivering bespoke digital products that drive innovation and help you achieve your brand goals. A full-stack developer with expertise in every major platform and language, we design and deliver custom applications and host and maintain the solutions we...

    Top Services:

    • Software Development
    • Mobile App Development
    • UI/UX Design
    • Software Testing
    • WordPress Website Design
    • Show more
    Location
    Spring, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up

    Espresso Moon Services

    • Software Development
    • Mobile App Development
    • UI/UX Design
    • Software Testing
    • WordPress Website Design
    • eCommerce Development
    • Web Development
    • AI Development
    • VR/AR
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • DistributionNOW
    • Tesla
    • Nucor Steel
    • Everest Funeral Concierge
    • Flexitallic
    • Solvay Dental
    • Stream Realty
    • Wilson Perumal
    • Neuhaus Academy
    • SafeFleet
    Data sourced from the agency's DesignRush profile

    Espresso Moon Reviews & Testimonials

    • Bradley Collins
      Bradley Collins Review from Google
      5.0 ★

      Bradley Collins's Review Sourced from Google

      Working with the guys at Espresso Moon (Scott, Doug, Tim and Dwayne) was truly a great collaboration and experience. They didn't just throw a website together for us, they helped us to reinvent ourselves. They go out of their way to get to know you and your business to the fullest extent, and that is a quality that is not often seen. If I were to recommend a web design/hosting company to anyone, Espresso Moon would be the one and only name I give. Thank you for your service and support!

    • Meredyth Jones
      Meredyth Jones Review from Google
      5.0 ★

      Meredyth Jones's Review Sourced from Google

      I worked primarily with Scott, Tim and Doug to build a fairly complicated site: Paypal/credit card payments, video training modules, a graded quiz, and issuance of a completion certificate. They were the only website company that invited me to an in-person meeting and that was tremendously helpful in me understanding how they work and them understanding my goals. Large Animal Consulting & Education launched 2 days ago and the site is running smoothly. I'm very happy with the site they designed (they also designed my logos) and am looking forward to using them to support and add to the site down the road.

    • Caleb Schallert
      Caleb Schallert Review from Google
      5.0 ★

      Caleb Schallert's Review Sourced from Google

      Doug Wheeler is the owner of Espresso Moon and he has provided my small business excellent IT technical support for our website. His team helped me out by removing malicious code that was affecting my site right after the Heart Bleed epidemic last year. He got my site back up and running so i could continue business and save my online reputation. I would recommend Espresso Moon LLC to anyone in need of a new website or mobile application because they follow through with what they promise to do, on time and on budget. They are truly a pleasure to work with!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (4)

  • EmbarkingOnVoyage

    Your leading data and product engineering partner.

    EmbarkingOnVoyage Digital Solutions is your premier partner in data and product engineering, empowering technology companies, large enterprises, and SMBs to transform industries such as travel, healthcare, banking, finance, and more through innovative solutions. We specialize in revolutionizing technology and...

    Top Services:

    • Digital Services
    • Mobile App Development
    • Software Development
    • Software Testing
    • Web Design
    • Show more
    Location
    Darnestown, Maryland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $50,000 & Up

    EmbarkingOnVoyage Services

    • Digital Services
    • Mobile App Development
    • Software Development
    • Software Testing
    • Web Design
    • UI/UX Design
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mahindra
    • Reliance Industries Limited
    • Docbyte
    • Garvis
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

Related Mobile App Development Specializations in the US

Popular Services

Latest Trends Related to HTML5 Mobile App Development

iPhone vs Android Statistics
App Development

iPhone vs. Android: 60+ Key Market Statistics Every Business Should Know

20,352
Mobile App Development AI Tools
App Development

I Tested the Top 5 Mobile App Development AI Tools: Here’s What Stood Out

38,794
No-Code App Builders
App Development

Top 5 No-Code App Builders Reviewed — Which One Came Out on Top?

26,961

Receive Free Proposals

For your project

1

Specify your budget, timeline and project requirements

2

Our experts curate a list of up to 5 most qualified candidate agencies

3

We connect you with them so you can choose the most suitable partner

Specify your requirements