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

1,177 Companies - Rankings updated: September 03, 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
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  • QTIM

    We Build Digital Products

    We Build Digital Products

    QTIM is a digital product development company that designs and builds complex, high-load web platforms, mobile applications, SaaS products, and AI-powered solutions for businesses worldwide. Ranked among Russia's leading development companies, QTIM has successfully delivered more than 280 projects across...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Design Services
    • Software Testing
    • Show more
    Location
    Tula, Russia
    Number of Employees
    50 - 99
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed
    View Profile

  • NUS Technology

    We Build We Stay

    We Build We Stay

    NUS Technology is a boutique software engineering partner with over 70 engineers based in Ho Chi Minh City. Since 2013, we have worked closely with product leaders and operators to design, build, and maintain the core systems their teams rely on every day...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • Show more
    Location
    Ho Chi Minh, Vietnam
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    3 Projects Listed
    View Profile
    4.7 4.7 (6)

  • Agively Technologies

    We Build Software The AI-First Way

    We Build Software The AI-First Way

    AI-first software studio that helps startups and enterprises ship faster, automate deeper, and scale confidently. We combine enterprise-grade engineering with AI-native architecture - delivering rapid POCs, application modernisation, intelligent workflow automation, and full-scale digital transformation...

    Top Services:

    • AI Development
    • Mobile App Development
    Location
    Gurgaon, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • Domio Labs

    Modern Infrastructure For Property Management

    Modern Infrastructure For Property Management

    Domio Labs delivers production-ready SaaS and AI-powered applications at the speed AI-accelerated engineering allows fixed scope, fixed price, senior engineers throughout. No junior staffing, no scope creep, no vendor lock-in. Built for operators who need software that works on the first delivery, not the...

    Top Services:

    • Software Development
    • Mobile App Development
    • eCommerce Development
    • Web Development
    • Managed Services
    • Show more
    Location
    Atlanta, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
    View Profile

  • Zensar Technologies Ltd

    Experience-Led Everything

    Experience-Led Everything

    Zensar Technologies is a leading IT services, technology consulting, and digital transformation company helping enterprises modernize, innovate, and grow. We deliver AI-led solutions across cloud, data and AI, digital engineering, application modernization, enterprise platforms, cybersecurity, and managed...

    Top Services:

    • Digital Services
    • Digital Strategy
    • UI/UX Design
    • Digital Marketing
    • AI Development
    • Show more
    Location
    Pune, India
    Number of Employees
    1000 & Up
    View Profile

  • Qimma Technologies

    From Idea To The Summit

    From Idea To The Summit

    We are a software development company specializing in custom web, mobile, and enterprise solutions. We help businesses of all sizes transform their ideas into scalable digital products using modern technologies. From ERP, CRM, POS systems, and eCommerce platforms to AI-powered dashboards and business...

    Top Services:

    • Web Design
    • Web Development
    • AI Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Madinah, Saudi Arabia
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    View Profile

  • Renacto Enterprise Solutions

    Innovating Digital Success Together

    Innovating Digital Success Together

    Renacto Solutions is a full-service IT and software development company that helps businesses accelerate digital transformation through custom software, web and mobile applications, cloud migration, IoT solutions, and digital marketing services. The agency combines technical expertise with creative...

    Top Services:

    • Graphic Design
    • Design Services
    • Digital Strategy
    • Logo Design
    • Web Development
    • Show more
    Location
    Cuddalore, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (23)

  • Silicon Spirit

    Building Is The Easy Part. Knowing What To Build Is Where We Come In.

    Building Is The Easy Part. Knowing What To Build Is Where We Come In.

    Our studio works more as a business partner, specialized in design and implementation, rather than a blind executant. We think that too many products are smart but soulless, or beautiful but broken, and most fail long before launch, when nobody asked what to build and why...

    Top Services:

    • UI/UX Design
    • Branding
    • Design Services
    • eCommerce Development
    • Web Development
    • Show more
    Location
    Bucharest, Romania
    Number of Employees
    Under 49
    Average Hourly Rate
    $80/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    View Profile

  • Woodward and Guy LLC

    Building Software That Drives Results

    Building Software That Drives Results

    Woodward & Guy helps small businesses across Northwestern PA and Western NY get found online. We build fast websites, manage Google Ads, optimize Google Business Profiles, run local SEO, and develop custom business software. Based in Smethport, PA, serving 19 counties from Erie to Jamestown...

    Top Services:

    • Web Design
    • Web Development
    • Digital Services
    • Design Services
    • Digital Strategy
    • Show more
    Location
    Smethport, Pennsylvania
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
    Portfolios Count
    4 Projects Listed
    View Profile

  • Softsource Technolabs

    Transforming Ideas Into Digital Success

    Transforming Ideas Into Digital Success

    Softsource Technolabs is a leading Software Development, Mobile App Development, Web Development, AI/ML, and IT Consulting Company based in Ahmedabad, India, with a business office in New York, USA. For over a decade, weve been helping startups, SMEs, and enterprises transform their ideas into powerful...

    Top Services:

    • Digital Services
    • Logo Design
    • Design Services
    • Web Design
    • Web Development
    • Show more
    Location
    Ahmedabad, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    41 Projects Listed
    View Profile
    4.9 4.9 (30)

  • Born West Inc.

    We Build Digital Products, Experiences, And Systems ‍that Matter.

    We Build Digital Products, Experiences, And Systems ‍that Matter.

    Born West is a creative tech agency. We turn ambitious ideas into working software from inception to launch. Our senior strategists, designers, and engineers work as one team to shape digital products, AI-powered tools, platforms, and experiences that are thoughtful, scalable, and built to ship...

    Top Services:

    • Product Design
    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Show more
    Location
    Concord, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    View Profile

  • Neosao Services Private Limited

    Accelerate Your Business

    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
    View Profile

  • Aequora Digital

    Transparent Pricing Fast Delivery Ongoing Support

    Transparent Pricing Fast Delivery Ongoing Support

    software and web development agency specializing in modern websites, custom applications, automation, and technical SEO. We help businesses build faster, scale smarter, and create digital experiences that drive real results...

    Top Services:

    • Digital Services
    • Web Design
    • UI/UX Design
    • Web Development
    • SEO
    • Show more
    Location
    Davao City, Philippines
    Number of Employees
    Under 49
    Average Hourly Rate
    $12/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
    View Profile

  • Pinakinvox Private Limited

    Let's Aim Higher Together

    Let's Aim Higher Together

    Pinakinvox is a DPIIT-recognized software and mobile app development company based in New Delhi, India, building custom software, mobile apps, UI/UX, and cloud-based solutions for startups and enterprises across the globe...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • WordPress Website Design
    • Show more
    Location
    Delhi, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
    View Profile
    5.0 5.0 (12)

  • Shriram IT Ventures

    Designing Possibilities, Developing Solutions

    Designing Possibilities, Developing Solutions

    Shriram IT Ventures is a Greater Noida-based product engineering company that has been delivering custom software, AI solutions, SaaS platforms, mobile applications, and cloud systems since 2016. The company serves clients across the US, UK, UAE, Canada, Australia, and India, with more than 120 products...

    Top Services:

    • Web Development
    • WordPress Website Design
    • eCommerce Development
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Greater Noida, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    Under $1,000
    View Profile

  • Digital Pixora

    Engineering Mission-Critical Web Applications & AI Solutions.

    Engineering Mission-Critical Web Applications & AI Solutions.

    Digital Pixora is an elite software engineering and digital transformation agency. We don't just build websites; we engineer high-performance web applications, complex B2B SaaS platforms, and custom Artificial Intelligence (AI) solutions tailored for enterprise growth. Our core expertise lies in Rea...

    Top Services:

    • Software Development
    • AI Development
    • Web Development
    • UI/UX Design
    • Web Design
    • Show more
    Location
    Hyderabad, Pakistan
    Number of Employees
    Under 49
    Average Hourly Rate
    $120/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
    View Profile

  • Teamvoy

    We Bring The Tech. You Get The Wins.

    We Bring The Tech. You Get The Wins.

    Teamvoy is an AI engineering and transformation partner. We help companies make smarter technology decisions and turn them into production-ready software...

    Top Services:

    • Software Development
    • AI Development
    • Design Services
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Lviv, Ukraine
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    4.7 4.7 (29)

  • Drew Marketing Solutions

    Do It The Right Way

    Do It The Right Way

    Drew Marketing Solutions is an integrated marketing and communications company based in Nairobi, Kenya, focused on building data-driven growth systems for brands. The company combines strategic marketing, audience insights, creative execution, and performance optimization to help businesses achieve measurable...

    Top Services:

    • Digital Services
    • Digital Strategy
    • Creative Services
    • Web Design
    • Web Development
    • Show more
    Location
    Nairobi, Kenya
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    View Profile
    5.0 5.0 (76)

  • Webtree Software Solutions

    We Help Brands And Ideas Find Their Purpose

    We Help Brands And Ideas Find Their Purpose

    Accelerate growth and improving customer experience with custom software, web applications, mobile apps, AI solutions, and business automation...

    Top Services:

    • Mobile App Development
    • Software Development
    • SEO
    • AEO
    • Digital Marketing
    • Show more
    Location
    Manama, Bahrain
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    2 Projects Listed
    View Profile

  • Woltrio

    Better Tech, Better Life

    Better Tech, Better Life

    Woltrio is a healthcare technology and software development company specializing in custom digital solutions for healthcare providers, health systems, and digital health organizations. It combines healthcare expertise with modern software engineering to develop secure, scalable, and compliant systems that...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Software Testing
    • DevOps Consulting
    • Show more
    Location
    Rawalpindi, Pakistan
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    View Profile
    5.0 5.0 (12)

  • Grayhat

    We Build Cool Stuff

    We Build Cool Stuff

    Grayhat is a high-impact engineering and design agency specializing in custom platforms and SDKs, mobile application development, AI/ML integration, and cloud architecture. We help startups in Silicon Valley and global enterprises transform complex technical ideas and challenges into scalable...

    Top Services:

    • Product Design
    • Web Design
    • UI/UX Design
    • eCommerce Development
    • Web Development
    • Show more
    Location
    Islamabad, Pakistan
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (8)

  • Scott Labz, LLC

    Every Digital Experience Creates A Story

    Every Digital Experience Creates A Story

    Scott Labz LLC is an independent analytics and digital consultancy based in Bloomington-Normal, Illinois, working under a Measure, Build, Improve framework. Services span analytics implementation, data validation and reporting, custom web and application development, systems integration, and advertising...

    Top Services:

    • Digital Services
    • Digital Strategy
    • eCommerce Development
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Normal, Illinois
    Number of Employees
    Under 49
    Average Hourly Rate
    $300/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • LIMIVEX Marketing

    B2B Marketing, Engineered For Recruitment Firms

    B2B Marketing, Engineered For Recruitment Firms

    Limivex is a specialist B2B marketing practice for recruitment and search firms. We act as your fractional CMO and bring the team that delivers: branding, SEO, content, LinkedIn, email and paid, run as one strategic function. We build your credibility, authority and presence by writing in the technical...

    Top Services:

    • SEO
    • Content Marketing
    • Digital Strategy
    • Social Media Marketing
    • Email Marketing
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    View Profile

  • TOQNOQ India Private Limited

    Transforming Business Ideas Into Powerful Digital Solutions

    Transforming Business Ideas Into Powerful Digital Solutions

    TOQNOQ is a technology partner helping businesses turn ideas into high-impact digital products through custom software, web and mobile development, AI, and automation. We combine practical strategy, modern technology, and thoughtful design to build scalable solutions that solve real business challenges and...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • AI Development
    • Blockchain
    • Show more
    Location
    Ranchi, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $28/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • TechnoBrave Technologies Pvt Ltd

    AI Driven Software Development Company

    AI Driven Software Development Company

    TechnoBrave: AI-driven Software Solutions and Digital Transformation Company that offers AI, ML, Mobile and Web App, DevOps & Cloud Services...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • IoT
    • Product Design
    • Show more
    Location
    Ahmedabad, India
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    View Profile
    5.0 5.0 (1)

  • Vivago Techonologies

    Scale Able Software Solutions For Modern Businesses

    Scale Able Software Solutions For Modern Businesses

    Vivago Technologies is an established software development company delivering websites, eCommerce platforms, custom software, ERP solutions, and other digital products for businesses across different industries. With experience in designing and developing practical, scalable technology solutions, we help...

    Top Services:

    • Web Design
    • UI/UX Design
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    Dhaka, Bangladesh
    Number of Employees
    Under 49
    Average Hourly Rate
    $250/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • VeriTrustX Labs Private Limited

    Building Trust into Every Digital Interaction

    Building Trust into Every Digital Interaction

    VeriTrustX Labs is a deep-tech company building enterprise digital trust infrastructure for secure and verifiable digital interactions. We combine decentralized identity, verifiable credentials, blockchain, AI and privacy-enhancing technologies to help organizations establish trust across people, credentials...

    Top Services:

    • Blockchain
    • Cybersecurity
    • Software Development
    • IT Services
    • IT Compliance Solution
    • Show more
    Location
    Hyderabad, India
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
    View Profile

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