Searching for a top-rated application modernization services company to future-proof your business? Our directory provides industry-leading experts specializing in transforming legacy systems. With insights from verified client experiences and success stories, we make it easy for you to compare options based on location, budget, and hourly rates to find your next agency partner. 

Best App Modernization Services Agencies

403 Companies - Rankings updated: August 29, 2026

All mobile app development firms on DesignRush have been assessed for their expertise, portfolio, and verified client reviews. Some listings may be paid.

Application Modernization
Corporate Services
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  • Mindssoft Technology

    We Build Smarter Software With AI Powered by Claude AI

    Web App, Mobile App, AI Integration & Automation, Reliability Modeling & Simulation Solutions for Pulp Mills, MVP & Rapid Prototyping...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Blockchain
    • Staff Augmentation
    • Show more
    Location
    Madurai, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    1.0 1.0 (2)

  • Neosao Services Private Limited

    Accelerate Your Business

    Neosao Services Private Limited is a software development firm with an impressive track record creating Web and Android Application solutions, providing the best to support organizational objectives. We offer a broad range of web and mobile development solutions...

    Top Services:

    • Web Design
    • UI/UX Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Show more
    Location
    Kolhapur, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $5/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile

  • Paralleldevs

    We are you nearshore technology partner

    We are a digital production agency with 15+ of experience working with US agencies and clients such as Ferrari, Verizon, the Grey Group agencies, gov agencies like the CR government, ONGs like the UN; and startups around the world, enhancing their tech capabilities; by consulting, designing and dev...

    Top Services:

    • UI/UX Design
    • Web Design
    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Show more
    Location
    San Jose, Costa Rica
    Number of Employees
    Under 49
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $1,000 - $10,000
    Visit Website View Profile
    1.9 1.9 (3)
    4.4 4.4 (7)

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Why People Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding application modernization services companies. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

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DesignRush sustains a directory of over 30,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

  • Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
  • The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.

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