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.Â
Best App Modernization Services Agencies
1,002 Companies - Rankings updated: April 05, 2026
All mobile app development firms on DesignRush have been assessed for their expertise, portfolio, and verified client reviews. Some listings may be paid.
Modernize and Migrate Legacy Applications.
SourceFuse is an open-source rapid application development framework for development of modern cloud-native enterprise applications. ARC leverages a catalog of prebuilt backend microservices, micro-frontends, and infrastructure as code (IaC) modules that can be deployed on private and public clouds. [... view SourceFuse profile ]- Location
- Neptune Beach, Florida
- Number of Employees
- 250 - 499
- We dont just get the job done: we constantly think about how to get it done better. [... view Mindex profile ]
- Location
- Rochester, New York
- Number of Employees
- 250 - 499
Leading Management and Technology Consulting Firm
Cloud Transformation for the Enterprise. [... view Attain Partners profile ]- Location
- McLean, Virginia
- Number of Employees
- 250 - 499
- We are a global technology services company helping companies transform by leveraging Cloud, AI, and ML. [... view Cambridge Technology profile ]
- Location
- Atlanta, Georgia
- Number of Employees
- 500 - 999
- IT Services and IT Consulting. [... view Astegic Inc. profile ]
- Location
- Arlington, Virginia
- Number of Employees
- 100 - 249
- SAIC is a premier Fortune 500 technology integrator driving our nations technology transformation. [... view SAIC profile ]
- Location
- Reston, Virginia
- Number of Employees
- 1000 & Up
Workflows Simplified with ServiceNow
Multi-award winning ServiceNow Elite Partner designing, enabling and sustaining digital transformation on ServiceNow. [... view Cask profile ]- Location
- San Diego, California
- Number of Employees
- 250 - 499
- Rocket Software partners with the largest Fortune 1000 organizations to solve their most complex IT challenges across Applications, Data, and Infrastructure. Rocket Software brings customers from where they are in their modernization journey to where they want to be by architecting innovative solutions that [... view Rocket Software profile ]
- Location
- Waltham, Massachusetts
- Number of Employees
- 1000 & Up
We Enable Constant Enterprise Transformation at Speed and Scale.
We are an intellectual property-led healthcare solutions provider focused on project management, enterprise data, and emerging technologies. [... view Cambay Consulting profile ]- Location
- Katy, Texas
- Number of Employees
- 250 - 499
Innovate. Transform. Succeed.
Business transformation firm focused on driving digital change & innovation with Microsoft technologies. [... view Valorem Reply profile ]- Location
- Kansas City, Missouri
- Number of Employees
- 250 - 499
Intelligence, Delivered.
In todays technology-driven world, the mandate of transformation represents both challenges and opportunities. CEI enables clients to harness innovation to gain competitive advantage and achieve meaningful results. [... view CEI profile ]- Location
- Pittsburgh, Pennsylvania
- Number of Employees
- 1000 & Up
Tailoring Excellent Tech
WeGotCode specializes in custom application development and efficient software integrations. Its commitment extends beyond technology, delivering transformative solutions to optimize workflows and enhance system communications. Leveraging cutting-edge technologies, including AI, WeGotCode simplifies complex [... view WeGotCode profile ]- Location
- Canton, Georgia
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $25,000 - $50,000
IT solutions and services firm
We offer project services, solutions, managed services, and staff augmentation with a focus on mobile apps for iOS and Android as well as SharePoint and Documentum. [... view Orion Innovation profile ]- Location
- Princeton, New Jersey
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $10,000 - $25,000
Big Data / Machine Learning / Business Intelligence
By implementing software and BI solutions tailored to each client's unique requirements, we hope to empower and support our clients as they optimize their business processes. [... view IT4W profile ]- Location
- Ramos MejIa, Argentina
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
Solving business challenges!
INVID is a renowned software engineering firm that delivers tailored software solutions to address business hurdles. Established in 2003 in San Juan, Puerto Rico, INVID has expanded its operations to encompass the United States and the Caribbean, with a primary focus on developing high-quality software that [... view INVID profile ]- Location
- San Juan, Puerto Rico
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $25,000 - $50,000
Tough Times Never Last But Tough People Do
We are a technology solutions company creating better solutions for our clients from all around the world. Our work with industries spanning across sectors like mobility, supply chain, software, web development, innovation and automation, artificial intelligence, you name it and we might have a solution for [... view Virtual Consonance profile ]- Location
- Harrisburg, Pennsylvania
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $65/hr
Creating meaningful digital experiences that matter.
My name is Alma Estrada based in Chicago, IL, USA. An experienced UX designer. I have a BA in Digital Marketing from North Park University. I'm a big proponent of accessible, useful, and usable design. I make a concerted effort to help create designs that can be enjoyed by everyone. [... view Alma Estrada profile ]- Location
- Chicago, Illinois
- Number of Employees
- Under 49
Innovating Tomorrow's Technology Today
4 Aces Technologies offers cutting-edge IT services and software development solutions to help businesses thrive in a digital world. [... view 4 Aces Technologies profile ]- Location
- Ontario, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $1/hr
IT Solutions & Services in Australia
Avenue Group Australia goes beyond technology to drive real business transformation through the alignment of strategy, people, and performance. Trusted by leading organizations, we deliver enterprise IT solutions and ICT consultancy that achieve measurable results. [... view Avenue Group Australia profile ]- Location
- Perth, Australia
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
AI Consulting For Businesses That Want Results Now
Augusto Digital is an AI consulting firm that turns ambition into action. Since 2016, we've helped healthcare systems, manufacturers, and growth-stage companies implement AI that delivers measurable results, not just strategy documents. We build, deploy, and stay accountable to outcomes. [... view Augusto Digital profile ]- Location
- Grand Rapids, Michigan
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $1,000 - $10,000
Software that fits.
At Buildo, we specialize in crafting bespoke software solutions that precisely align with our clients' unique needs and objectives. Our team excels in delivering top-notch custom software, ensuring seamless integration and optimal functionality for your business. [... view Buildo profile ]- Location
- Milan, Italy
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
We create high quality digital & commercial products for business and customers
We are a globally-operating studio, capable of seamlessly working across all time zones. Our expertise extends to developing digital products tailored to specific target audiences and diverse markets. Our multilingual team is proficient in addressing a wide range of challenges. Our team is comprised of [... view LOOKSGREAT Studio profile ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Portfolios Count
- 4 Projects Listed
Building E-Commerce and Web Apps
Elightwalk Technology is your digital growth partner. With 15+ years of experience and a strong portfolio of 40+ successful eCommerce platforms, web development & FinTech we empower businesses to unlock their full digital potential through powerful, intelligent, and scalable technology solutions. [... see all Elightwalk Technology PVT LTD reviews ]- Location
- Ahmedabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
Expert in Developing Custom Software, Mobile Apps, and Web Apps for Any Industry Worldwide| B2B
Softexpoit's team of experts combines technical expertise and creativity to develop custom software, mobile app, and web app, backend, mac/windows solutions that meet your specific business/official needs.We understand that every business is different, which is why we offer customized solutions. [... view Softexpoit profile ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
We thrive on creativity and the challenge of turning complex problems into elegant solutions
Generic Soft excels in crafting web-based platforms, mobile applications, machine learning solutions, and IoT technologies, catering to diverse software needs. Our comprehensive software services encompass MVP development, custom software solutions, R&D consulting, and staff augmentation, ensuring tailored [... view Generic Soft profile ]- Location
- Sofia, Bulgaria
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
We build dedicated teams and thriving products
Kultprosvet is a Dnipro, Ukraine based software development firm founded in 2011. It builds dedicated web and mobile development teams, focusing on full-cycle solutions UI/UX, front-end, back-end, project management, and QA. With expertise in Node.js, PHP/Laravel, React, Vue, and native mobile (iOS/Android [... view Kultprosvet profile ]- Location
- Dnipro, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Transforming Visions into Quality Solutions
SDD Technology is a digital transformation consultancy and software development company, delivering full-cycle custom web & mobile app development to help businesses scale and innovate. [... view SDD-Technology profile ]- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 9 Projects Listed
Your Ideas. Our Technology.
Northern Lights Technology Development is a global technology company that provides information technology and business process support services to improve performance, productivity, and user satisfaction; all while maximizing your technology budgets. [... view Northern Lights Technology Development profile ]- Location
- Minneapolis, Minnesota
- Number of Employees
- 500 - 999
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Build Software Customers Love
Located in Boulder, CO, Meteor Labs provides high-quality UX design & software development for clients including start-ups and Fortune 100 companies. [... view Meteor Labs profile ]- Location
- Boulder, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Leading Flutter development agency
What the Flutter is a software development company with top expertise in Flutter and Mobile technology. Our service is to provide extremely talented developers ready to solve the hardest business problems with Flutter. [... see all What The Flutter reviews ]- Location
- Tallinn, Estonia
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Your Digital Partner
Founded with the vision of delivering world-class digital solutions, Dirox is a global IT company that combines local expertise with international management. Headquartered in Vietnam, we specialize in software development, IT outsourcing, and digital transformation services that empower businesses [... view Dirox profile ]- Location
- Paris, France
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 9 Projects Listed
Crafting Digital Experiences Through Data
For us, it's all about teaming up closely with our clients, and making those smart business moves together. [... view Undertk Studio profile ]- Location
- Mexico City, Mexico
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Your Trusted IT Partner
ELIFTECH thrives on taking a business idea and transforming it into a high-tech product. ELIFTECH designs, builds, tests, and launches software technology for a variety of industries. The company successfully creates software that connects people, devices, systems, and data in a seamless process. [... view ELIFTECH profile ]- Location
- Lviv, Ukraine
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
Bespoke Web & Mobile Software Development.
Empowering companies with skilled engineering talent so they can execute their digital transformation and product development strategies affordably and seamlessly. [... view Goodcore Software profile ]- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 1 Project Listed
Accelerate Your Technology Roadmap
Our main objective is to build the most outstanding and robust software development teams in Latin America for companies looking for first class technological solutions and accelerate your technology roadmap. [... view NetForemost profile ]- Location
- Panama City, Panama
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Innovative Web & App Solutions for Growing Businesses.
Devtrios is a web and mobile app development agency specializing in custom software solutions. Our expertise in React.js, Next.js, and AWS allows us to build fast, scalable, and user-friendly digital products. From e-commerce platforms to enterprise applications, we help businesses enhance their online [... view Devtrios profile ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 9 Projects Listed
Don´t Limit My Mind
Unlimited Circuits are empowering innovation through custom electronics, software, and product design. From PCB to prototype, we engineer smart, sustainable solutions that move industries forward. [... view Unlimited Circuits profile ]- Location
- Aguascalientes, Mexico
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Enabling Visionaries to Build the Future
We are a Strategy-First Software Dev-House who serve visionaries who dare to disrupt the present and choose to drive the future through innovation [... view Softserve profile ]- Location
- Johannesburg, South Africa
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 7 Projects Listed
IT Services, Advisory, Managed Solutions.
Embark on your digital transformation by partnering with a digital agency dedicated to guiding you towards achieving success. Whether you're an ambitious professional or a business, we offer comprehensive digital services that empower your enterprise or entrepreneurial aspirations. [... view Pax Technology Services profile ]- Location
- Toronto, Canada
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Portfolios Count
- 8 Projects Listed
Strategy by design
We are a group of Digital Fanatics across the globe who specializes in launching and revamping brands. We believe bespoke processes lie at the core of creative digital strategy, and that is what makes us one of the best custom web design agency. We believe in coming up with digital processes never seen or [... view Design Deca profile ]- Location
- Nashville, Tennessee
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $99/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Building future-proof software
We deliver transformative technologies to some of the worlds most recognized brands. We work with the top performance management vendors including OneStream, Angular, Ionic, Azure, React, Oracle to automate and optimize your business processes, and make your work simpler and more efficient. [... view Tevpro profile ]- Location
- Houston, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Building Benefits Through Software Solutions
NEKLO LLC is a software development company specializing in custom solutions for the healthcare, ecommerce, fintech, construction, and energy industries. We combine domain knowledge with engineering expertise to build scalable, secure, and reliable web and mobile applications. [... view NEKLO profile ]- Location
- Burlingame, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Make Our Dreams Realized
Accelerate your digital transformation with MOR Software. We provide high-quality IT outsourcing services across diverse industries, from Fintech and Healthcare to Manufacturing. Our expertise spans Custom Web/App Development, Salesforce Implementation, Generative AI, and Automotive software. With a dedicated [... view MOR Software profile ]- Location
- Ho Chi Minh, Vietnam
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 3 Projects Listed
Turn Your Ideas into Scalable Digital Solutions
TechSaint Technology Solutions is a digital technology agency specializing in web development, mobile app development, and digital transformation services that help businesses innovate and grow online. The company focuses on building high-performance websites, scalable mobile applications, and modern digital [... view Techsaint Technology Solutions Pvt Ltd profile ]- Location
- Bengaluru, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 19 Projects Listed
Your Enterprise-Ready Partner in Apps, AI and Digital Transformation.
Apptage, based in South Jordan, Utah, delivers end-to-end solutions in mobile apps, game dev, web dev, custom software, AI, e-commerce, cloud & data consulting and enterprise solutions helping businesses innovate faster, operate smarter and scale without limits. [... view Apptage profile ]- Location
- South Jordan, Utah
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Portfolios Count
- 9 Projects Listed
Designed for the future. Engineered today.
A-CX is a boutique software design and development partner empowering businesses focusing on Approachable AI and Secure Cloud solutions. We deliver user-centered software development services through cutting-edge design and robust engineering that drive smarter, scalable outcomes. [... view A-CX profile ]- Location
- San Jose, California
- Number of Employees
- Under 49
- Portfolios Count
- 6 Projects Listed
We are Strategy + Digital working as one.
All-in-one Communication Agency that combines Strategy and Digital to think and implement ongoing solutions.With over 15 years of experience, we have adapted our hands-on approach to strategically design and implement digital solutions that are client driven, goal oriented and industry specialized [... view Republica 45 profile ]- Location
- Lisbon, Portugal
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $65/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
We transform ideas into digital experiences.
At Inedit, we craft powerful brand identities, design visually distinctive websites, and offer comprehensive software development. We transform your business into a digital powerhouse. [... view Inedit Digital profile ]- Location
- Geneva, Switzerland
- Number of Employees
- Under 49
- Portfolios Count
- 11 Projects Listed
Let's build together, innovate and grow
Techvention's inception story is one of entrepreneurial spirit and a desire to empower startups.The journey began when founders, after gaining valuableexperience and insights from working with multinational companies, decided to embark on anentrepreneurial path. H [... view Techvention profile ]- Location
- Sharjah, United Arab Emirates
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 4 Projects Listed
Design and development, as simple as OnePlusOne
OnePlusOne Solutions is a global team of designers, developers, and strategists, working collectively to craft impactful products, captivating websites, and bold visual identities for innovative brands. By merging our creative and technical expertise, we bring big ideas to life. [... view OnePlusOne Solutions profile ]- Location
- Norwalk, Connecticut
- Number of Employees
- 50 - 99
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Explore Mobile App Development Specializations
- Accessibility Mobile App
- Android
- App Development Consultants
- Consumer
- Cross-Platform
- eCommerce
- Educational
- Enterprise
- Entertainment App Development
- Field Operations
- Financial
- Fitness App Development
- Food Delivery App Development
- Freelance
- Gambling
- Games
- Government
- Healthcare
- HTML5
- Hybrid
- Insurance
- iPad
- iPhone
- Media App
- Mobile App design
- Nonprofit
- Publishing
- React Native
- Restaurant App Development
- Small Businesses App Development
- Social Network Apps
- Sports App Development
- Startup
- Telemedicine App Development
- Thunkable
- Travel App Development
- Wearables
- Windows
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.
Learn more about DesignRush Agency Ranking Methodology.
Sources
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.
About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.
Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.
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