All Cross Platform Development Agencies in New York City, NY
Chudovo OÜ
5(21 reviews)Complex Systems Implementation
Highly recommendedTop awardedChudovo is a custom software development company, focused on complex systems implementation. Customers rely on our expertise, appreciate transparency in time, budget, visibility of work progress, and our assistance in achieving their business objectives with high-quality solutions. Our teams follow best development practices and methodologies and apply their experience in such industries as healthcare, finance, e-commerce, logistics, telecommunications, and others. In our portfolio, we have over 190 successfully implemented web, mobile, desktop, cloud, embedded, and AI projects. With our commitment to innovation, we bring together cutting-edge technologies, visionary strategies, and creative minds to breathe life into your visions and ideas.3 works in Cross Platform DevelopmentLocated in New York, United States (+4)From €3,000 for Cross Platform DevelopmentWorked in Hospitals & Healthcare (+19)Speaks English, German(+2)51-200 membersSimpalm | Digital Product Development Company
5(21 reviews)Creating custom app, web and AI solutions
RecommendedSimpalm is a leading digital product development company in the USA, specializing in UI/UX design, mobile app development, web development, AI solutions, and SaaS platforms. With offices in Maryland, Chicago and New York, we’ve been building transformative digital solutions for startups, established companies, and nonprofits. Our digital solutions have solved challenges for healthcare, financial services, construction, education, IoT, charities, associations and SaaS industry. Our team of experienced project managers, designers, developers, and testers combines creativity with cutting-edge technology to turn ideas into high-performing apps, websites, and AI-driven systems. We focus on delivering products that enhance efficiency, scalability, and user experience — helping organizations grow faster in today’s digital-first world. With over 400+ successful deployments, Simpalm has become a trusted partner for businesses looking to design, develop, and scale their digital products. Beyond development, we offer continuous support and maintenance to ensure your solution remains secure and future-ready. Our Main Services: Discovery and Design : Define requirements, create wireframes, and design visually engaging UI/UX for your app or website. Custom App Development : Build AI-powered mobile apps using React Native, Swift, Kotlin, and Flutter. Website Design and Development : Craft CMS-based websites in WordPress, Drupal, or Hubspot CMS to represent your brand or organization effectively. Web and SaaS Applications : Develop scalable SaaS or web portals using React, Node.js, .NET, and Python. AI Strategy and Development : Create tailored AI strategies, chatbots, and automation workflows that empower your business. Support and Maintenance : End-to-end technical support to keep your products performing seamlessly.Looking for work in Cross Platform DevelopmentLocated in New York, United States (+4)From €1,000 for Cross Platform DevelopmentWorked in Education (+5)Speaks English51-200 membersProbey Services
5(132 reviews)World’s #1 Rated & Reviewed App & Web Development Partner
Highly recommendedTop awardedWorld’s #1 Rated & Reviewed App & Web Development Partner , Probey Services is a renowned IT and digital solutions provider , powering innovation for startups, SMEs, and growing organizations worldwide. Headquartered in London, UK , with a strong presence in India and 11 global branches, we combine global reach with deep technical expertise. Our 320+ specialists have successfully delivered 1900+ projects over the last 10+ years , helping businesses scale with mobile app development, website design & development , enterprise software solutions, AI-powered digital marketing, branding, and social media management. We proudly serve 30+ industries including retail, e-commerce, healthcare, fintech, education, travel, logistics, luxury, and more. Probey Services is rated as the #1 Tech Partner globally on Clutch, GoodFirms, and Trustpilot , we stand out for our system-driven execution, advanced tech stack, and client-first approach. Our Services: We deliver end-to-end digital solutions that don’t just work, they win. Mobile Apps – iOS & Android (React Native, Flutter, Kotlin, Swift, Java). Websites – Fast, stunning, conversion-driven (Shopify, WordPress, Magento, Joomla, Wix, Umbraco). Custom Software – ERP, CRM, SaaS, and cloud platforms (React, Node.js, Angular, .NET, Python, PHP, Ruby, Java). Digital Marketing – AI-powered SEO, PPC, and performance campaigns (SEMrush, Ahrefs, Moz, Google Ads, Analytics). Branding – Logos, identity kits, merchandise, collaterals (Figma, Adobe Suite, CorelDRAW). Social Media – Strategy, UGC/CGC, influencer collabs (Instagram, LinkedIn, YouTube, Pinterest). Awards & Recognition: Proudly recognized worldwide: Top Mobile App Development Company – Clutch (2025) Best Web & Design Agency – DesignRush (2024) Global Leader – GoodFirms (2024) Top 10 IT Companies – G2 (2024) Excellence in Digital Innovation – AppFutura (2024) Clutch Global & Champion Badge (2023 & 2024 )Looking for work in Cross Platform DevelopmentLocated in New York, United States (+4)From €100 for Cross Platform DevelopmentWorked in Clothing & Accessories (+16)Speaks English, Dutch, Belgium(+5)201-500 membersFlatline Agency
4.9(20 reviews)Your digital pulse
Top awardedWe are a global disruptor in eCommerce, Corporate Websites and Marketing - proud to be an official Shopify Plus partner and ready to bring your digital stack to the next level! Our team of 50+ international specialists delivers innovation seamlessly through technological proficiency and award-winning designs and campaigns. We are the technical partner of established Brands like Oger, Vanilia, Shimano, Budweiser, Deloitte, Van Poelgeest, and MG Motors, delivering end-to-end solutions that cater to their individual business needs. With our in-depth knowledge of both tech and martech, Flatline provides comprehensive services that help companies achieve goals efficiently and simplify complex processes. At our core, we are focused on delivering high-quality work, fast – while leveraging the newest and best techniques available. As our client’s end-to-end development partner, we don’t simply work for them, but we deeply integrate and collaborate with each brand’s in-house teams.2 works in Cross Platform DevelopmentLocated in New York, United States (+1)From €3,000 for Cross Platform DevelopmentWorked in Clothing & Accessories (+11)Speaks English, Dutch(+1)51-200 membersAthlon Technology
5(4 reviews)Digital experiences that drive growth
Athlon Technology is a digital design and software development agency, founded in 2006 and based in Sofia, Bulgaria. For nearly two decades, we have partnered with organisations like Deutsche Bank, PwC, Amazon, Zebra Technologies, NRG, and Fundpath to untangle complex problems and build software that works in the real world, not just on paper. Our work spans three areas: Product Design & Strategy - UX/UI design, design research, service design, and scalable design systems Engineering - Cross-platform software development, mobile and web applications, system integration, and technical architecture Digital Production Hub - A centralized production capability with dedicated producers managing end-to-end delivery, ensuring alignment across design, development, and business objectivesLooking for work in Cross Platform DevelopmentLocated in Kings County, United States (+2)From €5,000 for Cross Platform DevelopmentWorked in Telecommunications (+10)Speaks English, Bulgarian(+2)51-200 membersAkveo
5(1 review)Here to Build
Akveo is an international software development firm that creates innovative digital solutions to help businesses grow. Specializing in custom software, low-code/no-code platforms, and UI/UX design, we empower companies of all sizes to turn their concepts into scalable, high-performing applications. As a certified Retool development partner and React Native expert (https://www.akveo.com/services/mobile-application-development/react-native), Akveo has successfully completed 500+ projects across sectors like finance, healthcare, eCommerce, and EdTech. Our team of experienced software engineers, designers, and business analysts works collaboratively to deliver top-quality solutions. From cross-platform mobile development to MVP creation and AI-driven automation, we are dedicated to providing exceptional results that surpass client expectations.5 works in Cross Platform DevelopmentLocated in Warsaw, PolandFrom €3,000 for Cross Platform DevelopmentWorked in Insurance (+6)Speaks English, German(+2)51-200 membersSupercharge
(0 review)we build AI‑enabled digital products
Top awardedAt Supercharge, we create game-changing digital products positively impacting millions of lives around the world. As an end-to-end digital agency we support you through the entire life of your product, from strategy and design through data and AI-empowered development to ongoing support.Looking for work in Cross Platform DevelopmentLocated in New York, United States (+4)From €1,000 for Cross Platform DevelopmentWorked in Banking & Financials (+12)Speaks English, Dutch(+1)201-500 membersTRIARE
4.9(11 reviews)TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.Looking for work in Cross Platform DevelopmentLocated in Fairfax, United States (+3)From €5,000 for Cross Platform DevelopmentWorked in Hospitals & Healthcare (+20)Speaks English, Ukrainian51-200 membersDreambit.io
(0 review)Turn your vision into a top-performing mobile or web application with extended ROI
Dreambit is a Flutter-focused software development company helping startups and businesses build scalable, cross-platform mobile and web apps faster and more cost-effectively. We specialize in Flutter development, mobile app development, and cross-platform solutions, delivering modern, maintainable products that solve real business problems - such as reducing time-to-market, increasing user engagement, and boosting operational efficiency. Our team doesn’t just write code - we become your technology partner, fully immersed in your product vision and success. From idea to launch, we offer full-cycle development: business analysis, UI/UX design, development, testing, DevOps, and post-launch support. 🚀 What makes us different? • Flutter-first team with 7+ years of experience and dozens of successful apps. • Fast delivery - launch MVPs in 2–3 month. • End-to-end services - from discovery to support and scaling. • Scalable architecture - built to grow with your business. • Human approach - we work as part of your team, not just as external developers. 🧭 Our Values: • Care - We treat your product like it’s our own. • Trust - We believe in open, honest, and reliable collaboration. • Continuous Improvement - We constantly evolve and refine what we do. ⭐️ 5M+ App Downloads ⭐️ 4.8-Star Average Rating ⭐️ 70+ releases constant releases during last year8 works in Cross Platform DevelopmentLocated in New York, United StatesFrom €3,000 for Cross Platform DevelopmentWorked in Others (+5)Speaks English, Polish(+1)11-50 membersSaM Solutions
5(3 reviews)SaM Solutions is an international provider of IT services and software solutions with over 30 years
RecommendedTop awardedWe focus on IT consulting and custom software engineering, catering to both the European and US markets by leveraging our global resources. Serving a wide range of clients, from startups and SMBs to global enterprises and government agencies, we deliver technological excellence, accelerate time to market, and ensure uncompromised software quality and security. SaM Solutions employs some of the most talented IT professionals in the industry. We continually invest in skills development and knowledge enhancement to ensure our clients receive world-class software solutions and services most cost-effectively. In every client engagement, we are committed to guaranteeing the success of IT processes and software systems.1 work in Cross Platform DevelopmentLocated in Norwood, United States (+5)From €1,000 for Cross Platform DevelopmentWorked in Automotive (+23)Speaks English, German(+2)501-1000 membersUinno
(0 review)We build products like we own them.
Uinno is a product development agency compiled of engineers and technology experts with an ownership mindset who are solely focused on solving business challenges via creating future-ready apps, websites, and digital solutions.Looking for work in Cross Platform DevelopmentLocated in New York, United States (+2)From €1,000 for Cross Platform DevelopmentWorked in Sports (+6)Speaks English, Spanish(+1)51-200 membersApptech Systems
5(6 reviews)Your Enterprise’s Next Chapter Starts Here!
Top awardedFounded in 2017, Apptech has emerged as a reliable ally for organizations on their journey towards digital transformation. We specialize in crafting a suite of digital solutions that strategically leverage the transformative power of technology. Our core expertise encompasses bespoke software, innovative web and mobile applications, and robust enterprise solutions that guide our clients toward a prosperous digital future. We are proud partners with industry giants Microsoft and Amazon, utilizing their cutting-edge technologies to deliver exceptional results. Moreover, our operations extend from our headquarters in Türkiye to the United States and Saudi Arabia. Each office is equipped to serve regional clients with tailored expertise, making us a global player in the digital solutions arena. End-to-End Software Development Web & Mobile App Development AI & Machine Learning SaaS Development PoC/MVP Development App Modernization IT Consulting Quality Assurance Services Our mission is to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its quality framework.Looking for work in Cross Platform DevelopmentLocated in Lodi, United States (+3)From €5,000 for Cross Platform DevelopmentWorked in Household Products (+12)Speaks English, Arabic11-50 membersDot Com Development
5(10 reviews)Building smarter digital products that launch faster and perform better.
Top awardedDot Com Development is a full-service Web, Mobile, Cloud, and AI development company delivering high-performance digital solutions for startups, SMBs, and enterprise clients. Since 2004, the company has specialized in transforming complex business challenges into intuitive, scalable, and secure applications that drive real results. With a business-focused approach and a proven record of on-time, on-budget delivery, Dot Com Development combines technical expertise with strong UX, product strategy, and long-term support to ensure every project succeeds beyond launch. Dot Com Development gets digital products to market up to 50% faster than competing firms, reduces development costs by as much as 40%, and delivers user experiences that generate 5x more user engagement. Our services include: ✅ Strategic Planning and Consulting ✅ UX/UI Design ✅ Prototyping and POC's ✅ Web Application Development ✅ Website Design and Development ✅ Mobile Application Development ✅ Artificial Intelligence Development ✅ eCommerce Development ✅ API Development and Integration ✅ Data and Analytics ✅ Cloud Development ✅ CRM / ERP Development ✅ DevOps / Cloud Services ✅ Support and MaintenanceLooking for work in Cross Platform DevelopmentLocated in Scottsdale, United StatesFrom €5,000 for Cross Platform DevelopmentWorked in Industrial Goods & Services (+11)Speaks English11-50 membersDebut Infotech
5(7 reviews)Results, Not Promises
RecommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplinesLooking for work in Cross Platform DevelopmentLocated in Cook County, United States (+2)From €10,000 for Cross Platform DevelopmentWorked in Others (+11)Speaks English51-200 membersElement Media
(0 review)Comprehensive Software Solutions, All in One Place!
Element Media (aka. Creative Element Co.), headquartered in Bethlehem, is a software company specializing in a diverse range of digital services, including Web and Mobile App Development, software development, SEO Optimization, Web Hosting, Video Production, and Graphic Design. Since our establishment in 2018, we have been dedicated to providing top-tier quality and professionalism to our clients. Our forward-thinking approach ensures that the digital solutions we develop not only meet current needs but also anticipate future growth, making us one of the fastest-growing and most reputable media companies in Bethlehem. In 2024, Element Media achieved significant milestones, including the inauguration of a new office in New York , and the official registration of Element Media LLC in the US. These developments mark pivotal moments in our evolution, allowing us to extend our expertise and services to a broader audience while remaining steadfast in our dedication to excellence and innovation. Our Services Web Development: Crafted for online success. Custom Software Development: Tailored solutions for your business needs. Mobile App Development: Innovative apps for on-the-go engagement. Game App Development: Captivating gaming experiences. Progressive Web Apps: Best of both mobile and web worlds. SaaS Services & Development: Scalable business solutions. Search Engine Optimization: Boosting online visibility. Web Hosting Services: Reliable hosting solutions. Video Production: Compelling visual storytelling. Graphic Design: Visually stunning designs. Global Reach - Where we work Our reputation extends worldwide, built on a foundation of trust earned from clients across diverse regions. With a proven track record in managing large and complex projects, we consistently exceed expectations, fostering lasting relationships with our international clientele.Looking for work in Cross Platform DevelopmentLocated in New York, United StatesFrom €5,000 for Cross Platform DevelopmentWorked in RetailSpeaks English, Arabic(+1)11-50 membersLionwood.software
5(8 reviews)Find the Perfect Solution
Lionwood.software specializes in crafting custom software solutions tailored to meet the unique needs of businesses across various industries. Our expertise spans software development, application creation, IT solutions, and consultancy services. We have extensive experience building WMS, ERP, TMS, and CRM platforms. Many projects focus on transforming legacy software into cloud-ready architectures that improve performance, usability, and maintainability. Our services include: - Software Product Development Services; - Product Design Services; - MVP Development Services; - Web App Development Services; - Mobile App Development Services; - AI Software Development Services.Looking for work in Cross Platform DevelopmentLocated in New Castle County, United StatesFrom €5,000 for Cross Platform DevelopmentWorked in Marketing & Advertising (+10)Speaks English, Ukrainian51-200 membersSEVEN
5(7 reviews)🏆 Exceeding Your Expectations
Top awardedSEVEN is an IT partner with time-tested expertise in solving complex software challenges requiring narrow specialization . One of our biggest strengths is finding unique approaches and solutions for startups and businesses from a wide variety of industries, including crucial ones like healthcare & education. We take pride in our ability to find the technical solution and ensure that it leaves our clients room for growth and protects them from undesirable financial and technological consequences. We apply our extensive expertise to anticipate the needs of our clients and suggest improvements from a new, fresh angle. With SEVEN, our clients team up not just with tech-savvy people but with a group of experts who know how technology influences the business and how to make it align with sustained growth in the future.Looking for work in Cross Platform DevelopmentLocated in New York, United States (+1)From €3,000 for Cross Platform DevelopmentWorked in Software & Computer Services (+14)Speaks English, Ukrainian51-200 membersExtrovert Information Technology (EitBiz)
4.8(9 reviews)Empowering Businesses Through Cutting-Edge IT Solutions
Highly recommendedEitBiz is a forward-thinking digital transformation and software development company helping businesses innovate, scale, and succeed in a fast-evolving digital world. We partner with startups, enterprises, and growing brands to build high-performance, scalable solutions across mobile, web, and cloud ecosystems. Our team of experienced developers, designers, and engineers works closely with clients at every stage—from idea validation to deployment—turning complex challenges into intuitive, user-centric digital products. By combining strategy, design, and advanced technologies, we deliver solutions that are not only functional but also future-ready and growth-driven. We specialize in SaaS platforms, full-stack development, AI/ML solutions, and IoT-enabled systems, enabling businesses to streamline operations, enhance customer experiences, and unlock new opportunities. Every solution we build is guided by a strong focus on quality, security, and long-term performance, backed by our ISO 27001 and ISO 9001 certifications. What We Do At EitBiz, we go beyond traditional development to deliver end-to-end digital solutions that drive innovation and growth. Digital Product Engineering We design and build scalable mobile and web applications focused on performance, user experience, and adaptability. SaaS & Platform Development We create secure, cloud-native SaaS platforms built to scale and evolve with your business. Custom Software Solutions We develop tailored systems, including enterprise apps, CRM/ERP platforms, and automation tools to improve efficiency. AI & Intelligent Systems We leverage AI and data-driven technologies to automate processes and enhance decision-making. Web Experience & Growth We craft fast, SEO-optimized websites designed for seamless user journeys and strong digital presence. Dedicated Development Teams Scale your team with expert developers who integrate seamlessly and deliver with speed and quality.Looking for work in Cross Platform DevelopmentLocated in Fort Wayne, United StatesFrom €3,000 for Cross Platform DevelopmentWorked in Others (+4)Speaks English51-200 membersBits Orchestra
5(3 reviews)Software symphony for your business growth🚀
Bits Orchestra is a web and mobile development company with over 10 years of experience as a trusted tech partner for companies across the US, Europe, and Australia. We combine deep technical expertise with a strong commitment to understanding each client’s unique goals. Our team of 50+ developers has delivered more than 100 projects for companies in the US, Europe, and Australia - ranging from small businesses to growing mid-sized organizations. Our clients include Shaw Industries (manufacturing), KONI (manufacturing), the Harold Grinspoon Foundation (non-profit), and over 50 other organizations across industries like education, digital services, and retail. Our approach is simple: we listen, we understand, and we deliver. We always aim to deliver cost-efficient solutions that provide real, measurable value. From building new websites from the ground up to platform upgrades, we focus on turning your vision into solid, working digital solutions.Looking for work in Cross Platform DevelopmentLocated in Orlando, United States (+1)From €5,000 for Cross Platform DevelopmentWorked in Retail (+5)Speaks English51-200 membersAppCrops
5(58 reviews)Turning Ideas Into Interactive Solutions
Highly recommendedAt AppCrops, we go beyond development. We partner with businesses to design, build, and scale powerful digital products that drive real growth. Our team of top app developers, UI/UX designers, and business analysts combines strategic thinking with technical excellence to deliver solutions that are both innovative and reliable. Our mission is simple: to help businesses streamline operations, unlock new opportunities, and stay competitive in an increasingly digital world. From startups to enterprises, we provide end-to-end technology services designed to turn ideas into scalable solutions. Core Services Mobile App Development High-performance iOS, Android, and cross-platform mobile applications designed with user experience, scalability, and reliability in mind. Web Design & Development Modern, responsive websites and web applications built for performance, usability, and scalability. Designed to strengthen your online presence and convert visitors into customers. Custom Software Development Secure, scalable, and tailor-made software solutions built around your specific business requirements from enterprise platforms to specialized digital tools. ERP Systems & Enterprise Solutions Robust ERP platforms that centralize business operations, streamline workflows, and improve organizational efficiency. Startup Solutions & MVP Development We help startups move from concept to launch by building scalable MVPs, validating product ideas, and preparing platforms for growth. UI/UX Design Human-centered design that focuses on usability, clarity, and visual impact to create intuitive digital experiences. Digital Transformation Consulting Strategic guidance to help businesses adopt modern technologies, optimize processes, and successfully navigate digital transformation. Why Partner with AppCrops • Agile development process • Collaborative approach • Experience across industries • Transparent communication and project delivery • Competitive pricing without compromising qualityLooking for work in Cross Platform DevelopmentLocated in South Houston, United StatesFrom €1,000 for Cross Platform DevelopmentWorked in Clothing & AccessoriesSpeaks English51-200 members