Best US Cross-Platform App Development Companies

4 Companies - Rankings updated: September 03, 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.

United States × Cross-Platform Mobile App Development × Professional Services × Clear Filters
  • More than a website, a growth engine.

    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

    Serbyte Services

    • Web Design
    • SEO
    • Web Development
    • Software Development
    • UI/UX Design
    • Digital Marketing
    • PPC
    • AI Development
    • Design Services
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vets Choice Insurance
    • RC Concrete
    • Bespoke Tint & PPF
    • Entitled
    • Iron & Oak
    • Herbanatural CO
    Data sourced from the agency's DesignRush profile

    Serbyte Reviews & Testimonials

    • Kris Meyer
      Kris Meyer Owner at Bespoke Tint & PPF
      5.0

      Small Businesses Website Development Review from Kris Meyer

      Austin rebuilt our website from the ground up and helped turn Bespoke Tint & PPF into one of the top tint brands in Bellevue. The work started with a full redesign of our website, including branding, copywriting, conversion improvements, mobile optimization, and development. The new site immediately performed better and generated more leads after launch. After the website launch, we continued working together on SEO, AI search optimization, paid advertising support, analytics, A/B testing, and ongoing marketing strategy. He also helped improve our review visibility, local search presence, and overall positioning online. What started as a website project became an ongoing growth partnership focused on increasing traffic, leads, and customer acquisition.

    • Jeff Egbert
      Jeff Egbert Review from Google
      5.0

      Jeff Egbert's Review Sourced from Google

      Austin built or website fast.And it works flawless. And he is always available for you to answer any questions. Or solve any problems.great experience.

    • Uffy 666
      Uffy 666 Review from Google
      5.0

      Uffy 666's Review Sourced from Google

      very innovative and solid work. this service is invaluable in the climate of an ever evolving digital landscape. will definitely be coming back again.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Digital Partner for Project Success.

    Perimattic is a technology partner specializing in AI development, software development, cloud solutions, DevOps, MLOps, and enterprise technology services. The company helps startups, growing businesses, and enterprises build secure, scalable, and high-performance digital solutions...

    Top Services:

    • AI Development
    • DevOps Consulting
    • Cloud Consulting
    • Software Testing
    • Software Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr

    Perimattic Services

    • AI Development
    • DevOps Consulting
    • Cloud Consulting
    • Software Testing
    • Software Development
    • Big Data Analytics
    • IT Services
    • Managed Services
    • Cybersecurity
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Taygo Cloud
    • Paysafe
    • ITCAN
    Data sourced from the agency's DesignRush profile

    Perimattic Reviews & Testimonials

    • Neeraj Mishra
      Neeraj Mishra Founder at TCP Creations
      5.0

      UI/UX Design Review from Neeraj Mishra

      The dashboard Perimattic delivered is minimal, well-structured, and very user-friendly. Small touches like the layout, flow, and clarity of controls make a big difference. Great work by Gaurav and his team.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Enterprise AI, Engineered To Bounce Back

    Bounce Technologies is an enterprise AI development and technology company headquartered in Dubai, United Arab Emirates, with branch offices in Qatar and the United States. The company builds and deploys production-grade artificial intelligence, machine learning, computer vision, generative AI, and automation...

    Top Services:

    • Digital Services
    • Web Design
    • Web Development
    • Digital Marketing
    • eCommerce Development
    • Show more
    Location
    Illinois City, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr

    Bounce Technologies Services

    • Digital Services
    • Web Design
    • Web Development
    • Digital Marketing
    • eCommerce Development
    • SEO
    • Software Development
    • Mobile App Development
    • AI Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Meridian Health
    • Estate IO
    • PayArc
    Data sourced from the agency's DesignRush profile
  • Grow Your Business, Block By Block

    Fivenson Studios is an award-winning web design, SEO, and branding agency based in Ann Arbor, Michigan. With 128+ verified 5-star reviews, we are Michigan's highest-rated digital agency. We build custom, revenue-driving websites, craft strategic SEO campaigns, and develop brand identities that set businesses...

    Top Services:

    • SEO
    • Web Design
    • Digital Services
    • Graphic Design
    • Reputation Management
    • Show more
    Location
    Ann Arbor, Michigan
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed

    Fivenson Studios Web Design Agency Services

    • SEO
    • Web Design
    • Digital Services
    • Graphic Design
    • Reputation Management
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Video Production
    • Branding
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • University of Michigan
    • Terron Armstead
    • Master Garden Society
    • Arbor Halides
    • Ann Arbor SPARK
    • Blooms Landscaping
    • Michigan State Premier Soccer Program
    • Aqua Bio
    • Dynamic Energy Solutions
    • Brush Neuropsychology
    Data sourced from the agency's DesignRush profile

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