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
1,002 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.
Software Development and Consulting Company
Timspark is an innovative software development company that endeavors to deliver the highest quality work to clients who look to address their challenges with custom technology. Our one-of-a-kind business model fuels and cultivates fully-fledged independent development teams and motivates each engineer to [... see all Timspark reviews ]- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 35 Projects Listed
A Reliable Full-Service Software Development, Cloud, DevOps and QA Partner
Leveraging 30 years of excellence designing, developing, deploying and supporting world-class software solutions, Kanda Software has established itself as a trusted Software Development, Cloud Engineering, DevOps and QA partner for companies ranging from innovative startups to large enterprises. [... see all Kanda Software reviews ]- Location
- Boston, Massachusetts
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 16 Projects Listed
DICEUS Driving Innovation in Insurance Technology
DICEUS is a product-led technology company delivering next-generation insurance software solutions, system integration, and product engineering services. Since 2011, weve empowered insurers and brokers to enhance operational efficiency, automate core processes, and elevate customer experiences. [... see all DICEUS reviews ]- Location
- Wilmington, Delaware
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 16 Projects Listed
Experts at Your Service
Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies. [... see all Alt Digital reviews ]- Location
- Florida City, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Your Ideas Turned Into Reality
Techwink provides High Quality Mobile Application, Web Design & Development Solutions that will help you incarnate your ideas. [... see all Techwink Services reviews ]- Location
- Chandigarh, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Portfolios Count
- 33 Projects Listed
Building Products AI-Native Way
Talentica Software is a leading product engineering company that helps startups, growth-stage, and technology companies build end-to-end products and achieve business outcomes. The company has specialized in AI & Machine Learning, Generative AI, Data Engineering, Blockchain, and Big Data [... see all Talentica Software reviews ]- Location
- Pune, India
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 7 Projects Listed
Thrive in the Age of Social Media
Social Link specializes in delivering exceptional social media marketing services to help businesses thrive in the digital landscape. [... see all Social Link reviews ]- Location
- Nashville, Tennessee
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Innovating Digitally
NextLink Labs serves as a steadfast ally in DevOps consulting, nurturing businesses across diverse industries towards sustainable development and expansion. [... see all NextLink Labs reviews ]- Location
- Pittsburgh, Pennsylvania
- Number of Employees
- Under 49
- Portfolios Count
- 3 Projects Listed
Your AI-Native Technology Partner
AI-native software development company. We build intelligent digital products with Agentic AI, RAG, web, mobile, and cloud 350+ products shipped across 25+ countries. [... see all Unico Connect reviews ]- Location
- Mumbai, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Crafting your Digital Journey Turning your Ideas into Reality
We create an intersection between tech, design, business processes, and the customer. [... see all Cheval reviews ]- Location
- Dubai, United Arab Emirates
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Strategize. Develop. Deliver.
Your business faces unique challenges. Let's work together to create a custom mobile app or web solution to meet those challenges head-on. [... see all Zco Corporation reviews ]- Location
- Nashua, New Hampshire
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Best Software Outsourcing Agency
ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups. [... see all ZAAG SYSTEMS reviews ]- Location
- Dhaka, Bangladesh
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 17 Projects Listed
Building your digital storefront, designed to sell.
WubSites is your one-stop shop for digital solutions. We design beautiful websites and e-commerce platforms, optimize them for SEO and mobile, and manage your IT infrastructure. We also offer media planning, graphic design, digital advertising, SEO, and social media management. Let us help you elevate your [... see all WubSites reviews ]- Location
- Addis Ababa, Ethiopia
- Number of Employees
- Under 49
- Average Hourly Rate
- $24/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 3 Projects Listed
Building Trust, Scaling Success: Your DevOps Journey Starts Here
We know for sure that the process of scaling is always a challenge, therefore we are always in touch with our clients: since the moment of infrastructure audit, during critical loads and to the successful launch of the project. We are fully responsible for the quality of our work [... see all Quema reviews ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Brocoders is on-demand technical team for SaaS products and midsize businesses.
Choose Brocoders for your React Native development needs. With a 96% client satisfaction rate, the topnotch software development company specializes in creating advanced mobile solutions using React Native, React.js, Node.js, and AWS. [... see all Brocoders reviews ]- Location
- Tallinn, Estonia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 13 Projects Listed
Elevating Enterprises, One App at a Time.
Octalyte is a forward-thinking US-based mobile app development company specializing in cutting-edge enterprise mobile app development. We are committed to cultivating lasting client relationships by leveraging our expertise in diverse technologies to create top-tier products that elevate businesses in the [... see all Octalyte reviews ]- Location
- South Amboy, New Jersey
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 9 Projects Listed
Your Vision, Our Excellence.
Resourcifi is a leading outsourcing company that specializes in providing high-quality and cost-effective solutions for businesses worldwide. With a team of skilled professionals and a client-centric approach, we offer a range of services tailored to meet diverse business needs. [... see all Resourcifi reviews ]- Location
- Wilmington, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Painless software development
Organizing the teamwork with the client, we dive deep into their business needs and find the optimal way to reach the final goal with software. [... see all IntexSoft reviews ]- Location
- Herford, Germany
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 22 Projects Listed
Busy Building Solutions, Buzzing through the Future. Lets Build Your Vision!
At Beejern, we discussed the argument about how technology is good in a changing world. As your software development partner, we offer you best-of breed ideas and flawless solutions that match your business. [... see all Beejern Limited Liability Company reviews ]- Location
- Oklahoma City, Oklahoma
- Number of Employees
- Under 49
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
We Make the Impossible Case Possible.
Matellio is a leading software engineering studio, recognized globally for delivering intelligent solutions powered by Artificial Intelligence and Machine Learning. We specialize in developing customized AI solutions tailored to various needs of businesses under different industry verticals. [... see all Matellio Inc. reviews ]- Location
- Denver, Colorado
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 26 Projects Listed
Software Development / Technology Consulting / Dedicated Developers
A trusted software partner for 100+ companies worldwide - one that truly understands your business. SCALO delivers custom software, technology consulting, and IT talent that accelerates your growth. 20 years of excellence. 750+ successful projects. ISO 27001 certified. Microsoft Gold Partner. [... see all SCALO reviews ]- Location
- Wroclaw, Poland
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $40/hr
- Portfolios Count
- 7 Projects Listed
Trusted IT Partner for SMBs & Enterprises Since 2001 | Dedicated Teams | Industry-Specific Solutions
Altoros is a 350+ person strong IT consulting and development group. For over 20 years, we've been assisting Global 2000 organizations in getting software products to market faster and reducing the cost of R&D experiments to enable stable business growth. [... see all Altoros Labs reviews ]- Location
- Pleasanton, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 12 Projects Listed
Innovative Web Solutions Crafted For You.
Bostoneo elevates brands by applying digital engineering principles to every aspect of our work. From meticulous design to strategic optimization, we engineer digital solutions that elevate brands above the competition, driving growth and fostering meaningful connections with audiences. [... see all Bostoneo Solutions reviews ]- Location
- Boston, Massachusetts
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
Delivering the Future Tech
Take your software services and products to the next level with our best user experience solutions for your customers. [... see all ByteQuest Softwares Pvt Ltd reviews ]- Location
- Noida, India
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 28 Projects Listed
AI-enabled .NET product engineering partner
Blackthorn Vision is a AI-enabled product engineering partner passionate about creating high-impact solutions with proven results. We deliver tangible business value and exceed expectations through deep tech expertise and a commitment to client success. [... view Blackthorn Vision profile ]- Location
- Wroclaw, Poland
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Your Tech Partner for Growth.
Zoolatech provides engineering excellencewhether you need team augmentation or complete product deliverytrusted by startups and Fortune 500s worldwide. [... view Zoolatech profile ]- Location
- Miami, Florida
- Number of Employees
- 500 - 999
- Portfolios Count
- 26 Projects Listed
Mobile & Web Software Dev Team
Kernelics is a boutique web and mobile software development firmfor startups and tech companies. [... see all Kernelics reviews ]- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 18 Projects Listed
If you are delighted...we are too!!
IZISS Technology is a pioneering Business Consulting, Technology Research and Software Development Company specialized in offering hi-end and multi-dimensional online and offline solutions such as web development, mobile apps development, AR/VR solutions and custom applications development for businesses of [... see all Iziss Technology Pvt Ltd reviews ]- Location
- Indore, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Envision Leverage Infinite
A global technology outsourcing and custom Development Company with expertise into diverse Web Development, Custom Software and Mobile Applications. [... see all Cmarix reviews ]- Location
- Ahmedabad, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 38 Projects Listed
Helping Build Brands
We are an award winning full-service creative and digital agency that brings bold ideas to life through a powerful mix of strategy, storytelling, and execution. Headquartered in India with a strong presence in Dubai, we are committed to turning visions into scalable marketing success. [... see all The Go-To Guy reviews ]- Location
- Hyderabad, India
- Number of Employees
- Under 49
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 45 Projects Listed
UK's #1 Mobile App Development Company
Stakk is the UK's #1 rated mobile app development company. Based in London with over 10 years of experience and a 100% senior in-house team. Specialists in iOS, Android, React Native and Flutter. 120+ apps delivered for startups and global enterprises, including Samsung, LNER and the British Museum. [... see all Stakk reviews ]- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Solving hard software problems
Six Feet Up helps purpose-driven visionaries solve hard problems by crafting superior and lasting software solutions. [... view Six Feet Up profile ]- Location
- Indianapolis, Indiana
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Portfolios Count
- 16 Projects Listed
Enterprise Grade App & Web Development Services
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future [... see all RichestSoft reviews ]- Location
- Mohali, India
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Custom software solutions and innovative services crafted to meet your business goals.
A boutique software agency specializing in custom, innovative solutions to your unique requirements. Our entire development team is located in North America. [... see all Ollon Software Agency reviews ]- Location
- Toronto, Canada
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 16 Projects Listed
Connecting Offline to Online
Si3 Digital Agency creates exceptional website design, Develop eCommerce web, Mobile Apps, SEO Services, Social Media Management campaigns many more digital services for businesses in Abu Dhabi, Dubai, Sharjah & across UAE. [... see all Si3 Digital reviews ]- Location
- Dubai, United Arab Emirates
- Number of Employees
- Under 49
- Average Hourly Rate
- $110/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
A Company With ISO Certification for Its Testing Services
TestFort, a prominent performance testing company, boasts a remarkable 22 years of expertise, providing exceptional software testing services. [... view TestFort profile ]- Location
- Sheridan, Wyoming
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Next.js, Expo & Headless CMS Development Agency
We help growing companies modernize and scale their web platforms.Our focus is building high-performance, SEO-ready, and content-scalable systems using modern web architecture. [... see all Pagepro reviews ]- Location
- Białystok, Poland
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 20 Projects Listed
Accelerate Innovation With AI-Driven Development
JumpGrowth is a premier AI-led product engineering studio headquartered in Dallas, Texas. JumpGrowth specializes in building scalable, AI-powered software applications and products tailored for tech startups and enterprise innovation teams. [... see all JumpGrowth reviews ]- Location
- Richardson, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 6 Projects Listed
Cloud. AI. Development.
For 25+ years, Clarion helps enterprises, SMBs, and startups build, modernize, and scale software with results. [... see all Clarion Technologies reviews ]- Location
- White Plains, New York
- Number of Employees
- 250 - 499
- Portfolios Count
- 10 Projects Listed
Next-level digital efficiency
We build ingeniously throughout web and mobile applications, artificial intelligence solutions and customs software for businesses with big dreams. Our unique discovery process unlocks the potential for your business to scale. [... see all Osedea Limited reviews ]- Location
- Montreal, Canada
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 4 Projects Listed
We help business to scale!
AI & Software Development Agency. We deliver solutions across FinTech, HR & Recruitment, SportsTech, Healthcare, eLearning and others. [... see all Uinno reviews ]- Location
- Zaporizhzhia, Ukraine
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Portfolios Count
- 13 Projects Listed
Where Science and Technology Work for You
Abto Software is a full-cycle custom software engineering company, launched in 2007.With hundreds of delivered projects, we have earned the status of a trusted long-term software development partner for over 200 customers from North America and the EU. [... view Abto Software profile ]- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $49/hr
- Portfolios Count
- 45 Projects Listed
A Finite Solution
AppClues Infotech creating a mobile application development company. [... see all AppClues Infotech reviews ]- Location
- Stony Brook, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 17 Projects Listed
Scale With Tech Outsourcing & Offshore Development
epicX is the tech outsourcing partner for startups, matching you with top 5% remote developers in 48 hoursfast, vetted, and built for scale. [... see all EpicX reviews ]- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
We Help Data Driven Companies Build Measurable Generative AI Solutions.
At Markovate, we specialize in transforming businesses through cutting-edge AI and digital solutions. Our commitment is to drive innovation and operational excellence in every project. [... see all Markovate reviews ]- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 5 Projects Listed
Your Partner in AI & Custom Software Excellence
Geniusee is a U.S.-based AI and software engineering company with delivery hubs in Ukraine and Poland. We help businesses modernize legacy systems and scale faster through AI-powered, cloud-native solutions. Our team of 300+ experts has delivered 200+ projects for clients like Dell and Bloomberg. We [... see all Geniusee reviews ]- Location
- Austin, Texas
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 11 Projects Listed
Here to Build.
Akveo is a global software development company specializing in mobile, web, and AI solutions. We successfully delivered 500+ scalable, high-performance products using modern tech stacks for Automotive, Healthcare, Insurance, Fintech, IoT, eCommerce, and EdTech businesses. [... see all Akveo Inc reviews ]- Location
- Austin, Texas
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Software Design / Development / Support & Enhancement
60+ projects turned from ideas into powerful IT solutions. We help you grow, optimize, and cut costs with impactful web&mob apps,fueling your success. [... see all Akdev reviews ]- Location
- Tbilisi, Georgia
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Digital product creators & consultants.
Were not just a vendor. We care, we deliver, and we fit right in.Since 2004, Boldare has helped organizations build and scale digital solutions combining deep tech expertise, strategic UX/UI design, and AI-augmented delivery. But what truly sets us apart? Ask our clients. [... see all Boldare reviews ]- Location
- Gliwice, Poland
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 13 Projects Listed
Your 360° Software Development Partner.
We are Vitec and we help people worldwide not only to build IT Solutions from scratch, but to make them successful. As a 360° Software Development Partner, we take care of everything to design our partner's business models digitally. [... see all Vitec GmbH reviews ]- Location
- Kornwestheim, Germany
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 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
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- 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.
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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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