Best US Cross-Platform App Development Companies

7 Companies-Rankings updated: October 29, 2026
Cross-Platform
Public Safety
Budget
Sort by: Top Rated

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × Cross-Platform Mobile App Development × Public Safety × Sort by: Top Rated ×Clear Filters

  • Codebludev

    Mission-Critical Software Engineering & AI Development Firm

    Mission-critical software engineering firm in Cincinnati, OH. Founded by an active firefighter and paramedic from the NYC 911 system. We build custom software, mobile apps, and AI platforms for organizations where system failure is not an option...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Show more
    Location
    Cincinnati, Ohio
    Number of Employees
    Under 49
    Portfolios Count
    3 Projects Listed
    View Profile
    DesignRush verified(2)4.5

  • ALFATEK

    High-Level Technology for Small and Large Business.

    ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design...

    Top Services:

    • Software Development
    • Cybersecurity
    • IT Services
    • Managed Services
    • Web Design
    • Show more
    Location
    Concord, California
    Number of Employees
    Under 49
    Portfolios Count
    4 Projects Listed
    View Profile

  • 3 Sided Cube

    We build mobile apps, web platforms & AI workflows for organisations doing good in the world.

    3 Sided Cube is a global mobile app and digital development company with a passion for Tech For Good, championing the genius over the generic to build life-saving, life-changing digital solutions...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • AI Development
    • Digital Services
    • Show more
    Location
    St. Petersburg, Florida
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed
    View Profile
    Google reviews(12)4.5

  • LookFar Labs

    We Bring Bold Ideas to Life.

    IT, Software, and Chatbot Solutions to upscale your business. We partner with entrepreneurs and business leaders to design and build transformative technology solutions. By putting business goals first and the technology second, we achieve more impactful outcomes...

    Top Services:

    • IT Services
    • Staff Augmentation
    • Mobile App Development
    • Software Development
    • Show more
    Location
    New Orleans, Louisiana
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $25,000 - $50,000
    View Profile
    Google reviews(4)5.0

  • Edvantis

    Let's Create Digital Success Together!

    Edvantis is a data, AI & software engineering partner with over 400 talented professionals operating in Central & Eastern Europe and the USA...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • Staff Augmentation
    • Mobile App Development
    • Show more
    Location
    New York City, New York
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    12 Projects Listed
    View Profile
    Google reviews(5)4.2

  • Forge Studio

    Senior Product Designers Embedded in Your Team — Design Systems, Staff Augmentation, and Zero-to-One

    Forge Studio places senior product designers (L4-L6 caliber) from Coinbase, Roblox, and Instacart directly into your team. Embedded design teams, enterprise design systems, and zero-to-one product design. $9.5M+ in engagements since 2017...

    Top Services:

    • UI/UX Design
    • Web Design
    • Product Design
    • Digital Strategy
    • AI Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
    View Profile

  • ATS Media Group

    Leading Internet Web Agency Based In New York.

    ATSMG serves as your exclusive provider for tailor-made designs, hosting, SaaS solutions, branding services, and a comprehensive array of offerings. Additionally, ATSMG offers a self-service platform for businesses and e-commerce ventures, empowering you to take charge of your digital needs...

    Top Services:

    • Digital Services
    • Graphic Design
    • Branding
    • Creative Services
    • Logo Design
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    View Profile

Related Mobile App Development Specializations in the US

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