Best US Cross-Platform App Development Companies

461 Companies-Rankings updated: September 03, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

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  • Patoliya Infotech

    Solutions Innovator.

    Patoliya Infotech empowers startups and enterprises with AI-driven software, cloud solutions, and modern engineering. Backed by 11+ years of expertise and 427+ successful projects, we build scalable digital products that accelerate business growth...

    Top Services:

    • Web Development
    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • AI Development
    • Show more
    Location
    Leander, Texas
    Number of Employees
    50 - 99
    Visit WebsiteView Profile
    4.9 4.9 (59)

  • Nickelfox Technologies

    Empowering Ideas. We Design, Develop & Deliver!!!

    Nickelfox is a leading design and development studio that specializes in creating customized, scalable mobile app, UI/UX design, staff augmentation and software solutions for startups and Fortune 500 companies...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Web Design
    • Staff Augmentation
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    4.5 4.5 (94)

  • NovumLogic Technologies Pvt Ltd

    Innovate.Scale.Lead

    Novumlogic is a creative agency that has provided services in mobile app development with native or cross-platform app development experience and in web app development since 2015...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • AI Development
    • IT Services
    • Show more
    Location
    Carteret, New Jersey
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
    Visit WebsiteView Profile
    5.0 5.0 (21)

  • Persistent

    See Beyond, Rise Above.

    Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...

    Top Services:

    • AI Development
    • Software Development
    • Web Development
    • Mobile App Development
    • Blockchain
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
    Visit WebsiteView Profile
    4.6 4.6 (730)

  • TechnoBrains Business Solutions

    Empowering Businesses Through Innovative Software Development

    TechnoBrains Business Solutions is a global software development and AI solutions company founded in 2009, delivering custom web, mobile, AI, and enterprise software solutions for startups, SMEs, and established enterprises worldwide. Headquartered in Ahmedabad, India, with a presence in the United States...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • eCommerce Development
    • Web Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    4.8 4.8 (26)

  • Telepathy

    Empowering Businesses with Cutting-Edge Technology.

    Telepathy Infotech stands out as a top software company, providing exceptional mobile app development and web development services. Their solutions are tailored to meet client needs, ensuring innovative, user-friendly, and high-performance applications that elevate businesses across industries...

    Top Services:

    • Software Development
    • Mobile App Development
    • IT Services
    • Cybersecurity
    • Web Development
    • Show more
    Location
    Casper, Wyoming
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    Visit WebsiteView Profile
    4.0 4.0 (21)

  • CONTUS Tech

    Your Digital Growth Success Partner.

    CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that...

    Top Services:

    • DevOps Consulting
    • IT Services
    • Mobile App Development
    • IoT
    • Digital Services
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
    Visit WebsiteView Profile
    4.0 4.0 (314)

  • iProgrammer

    Your Programming Partner!

    iProgrammer Solutions Pvt. Ltd., set in Pune, INDIA offers world-class IT solutions for your business and online needs, encompassing Web & Mobile App Development, Odoo Development Services, Cloud Consulting, Staff Augmentation, AI Chatbot development, Devops Consulting, Blockchain Technology...

    Top Services:

    • Software Development
    • Mobile App Development
    • Staff Augmentation
    • Cloud Consulting
    • ERP Consulting
    • Show more
    Location
    Alpharetta, Georgia
    Number of Employees
    250 - 499
    Visit WebsiteView Profile
    4.4 4.4 (118)

  • Agnito Technologies Pvt. Ltd.

    Empowering startups, enterprises, and iGaming ventures

    Agnito Technologies Pvt. Ltd. is a full-service IT and digital marketing company delivering innovative solutions in web & mobile app development, game development, and online growth strategies. From SEO and social media to cutting-edge software, we help businesses scale and succeed in the digital world...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • Digital Marketing
    • Mobile App Development
    • Show more
    Location
    Wilmington, Delaware
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile

  • Claritus Consulting

    Powering Innovation. Enabling Change.

    From design to deployment, Claritus delivers secure, scalable, and user-friendly applications backed by 24/7 support...

    Top Services:

    • Web Development
    • Mobile App Development
    • DevOps Consulting
    • Cloud Consulting
    • IT Services
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    Visit WebsiteView Profile
    4.1 4.1 (88)

  • Antino Labs

    Values by Convergence

    We are an AI Consulting and Digital Transformation company that follows a collaborative and data-driven approach to deliver high-quality technology solutions for global enterprises...

    Top Services:

    • Web Design
    • Mobile App Development
    • Software Development
    • Product Design
    • Graphic Design
    • Show more
    Location
    Lewes, Delaware
    Number of Employees
    500 - 999
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Visit WebsiteView Profile
    4.6 4.6 (68)

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