Top Cross Platform Development Firms in New York City, NY

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All Cross Platform Development Agencies in New York City, NY

Quantum IT Innovation
5
(159 reviews)
Top Mobile & Web Development | AI Solutions | Digital Marketing Services
Highly recommended
Quantum IT Innovation is a world-class IT firm specializing in Business optimization solutions, Web Development, App Development, AI, & Digital Marketing for B2B and B2C agencies and companies in the USA, UK, Canada, Ireland, UAE, Australia, the Middle East, India, & across the globe. Our expertise extends to working with startups and global enterprises, crafting innovative products that drive growth and success. With a dynamic team of over 200 talented professionals, we offer end-to-end digital engineering solutions that align with your strategic goals. Why Partner with Us? With nearly a decade of industry experience and a portfolio of prestigious clients, Quantum IT Innovation stands at the forefront of digital innovation. Our commitment to excellence is reflected in: 1,000+ clients served globally 2,000+ software solutions delivered $800 million+ raised in investments for startups 5+ innovation hubs driving cutting-edge research and development At Quantum IT Innovation, we are dedicated to building transformative digital products that elevate user experiences and propel businesses forward. Join us in shaping the future of technology. Our Services - Mobile app development - Web app development - Artificial intelligence consultancy - Android App Development - Professional SEO Services - Digital Marketing - Custom app development - iOS App Development Company - Robotic Process Automation (RPA) - Social Media Marketing Services
Looking for work in Cross Platform Development
Located in Dallas, United States (+5)
From €1,000 for Cross Platform Development
Worked in Education (+23)
Speaks English, Hindi
201-500 members
SaM Solutions
5
(3 reviews)
SaM Solutions is an international provider of IT services and software solutions with over 30 years
Recommended
Top awarded
We 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 Development
Located in Norwood, United States (+5)
From €1,000 for Cross Platform Development
Worked in Industrial Goods & Services (+23)
Speaks English, German(+2)
501-1000 members
Celadonsoft
5
(7 reviews)
Scalable systems for complex business operations — delivered with clarity and predictability.
We help growing and established companies turn complex software initiatives into clear, scalable, and well‑managed systems. Our job is more than just software design and development — our job is taking care of your success. We don't jump straight into development. We start with discovery, solution design, and business analysis to define scope, architecture, integrations, and priorities before a single line of code is written. This is how we reduce delivery risk and protect your budget. We focus on three solution domains: 1. Custom Business Systems & Operational Platforms 2. Mobile Products for Customers and Operations 3. AI‑Enabled Business Workflows (AI under senior engineering control) Our strongest industry experience is in Food & Beverage, Real Estate, and FinTech — with growing expertise in iGaming, EdTech, and Travel Tech. Why companies choose us: clarity before development, structured delivery with PM and QA, domain‑aware solutions, and AI‑accelerated senior engineering. We work best with growing mid‑market companies, multi‑location businesses, and organisations that have outgrown spreadsheets or disconnected tools. We work as an extension of your business, in tight communication and total transparency — so there's no waste of time on back‑and‑forth. Start with a Solution Discovery call – to clarify scope, architecture, and the right path before any build commitment.
Looking for work in Cross Platform Development
Located in Tuckahoe, United States (+3)
From €10,000 for Cross Platform Development
Worked in Education (+23)
Speaks English, German(+2)
51-200 members
Dot Com Development
5
(10 reviews)
Building smarter digital products that launch faster and perform better.
Top awarded
Dot 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 Maintenance
Looking for work in Cross Platform Development
Located in Scottsdale, United States
From €5,000 for Cross Platform Development
Worked in Industrial Goods & Services (+11)
Speaks English
11-50 members
Akveo
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 Development
Located in Austin, United States (+2)
From €1,000 for Cross Platform Development
Worked in Insurance (+6)
Speaks English, German(+2)
51-200 members
Apptech Systems
5
(6 reviews)
Your Enterprise’s Next Chapter Starts Here!
Top awarded
Founded 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 Development
Located in Lodi, United States (+3)
From €5,000 for Cross Platform Development
Worked in Household Products (+12)
Speaks English, Arabic
11-50 members
SumatoSoft
5
(2 reviews)
Your Strategic Partner for AI Digital Evolution
Top awarded
SumatoSoft specializes in digitalizing businesses by combining stable, mission-critical software with advanced AI capabilities. We empower our clients to unlock new levels of automation while ensuring their AI systems remain secure, governed, and high-performing. Why Leading Brands Choose Us: Value-First Mindset: We identify the highest-impact AI use cases for your specific industry. Reliability at Scale: We build software that handles massive loads without breaking. Future-Proof Tech: We use only relevant, battle-tested AI and software frameworks. Deep Integration: We act as your internal tech department, diving deep into your business challenges. By becoming a true technological partner, we ensure that every line of code and every AI model contributes directly to your business efficiency and market leadership.
Looking for work in Cross Platform Development
Located in Boston, United States
From €10,000 for Cross Platform Development
Worked in Media (+12)
Speaks English
51-200 members
American Design Hub
4.9
(19 reviews)
More Than Design. We Create Connections.
Highly recommended
American Design Hub is a full-service creative agency based in Atlanta . We help businesses build a strong and modern online presence through professional design, branding, and digital solutions. Our team works with startups, small businesses, and growing brands that want clear communication, fast support, and reliable results. We offer logo design , brand identity , website development , e-commerce solutions , digital marketing , and social media content . Our process is simple and collaborative. We take time to understand each client, learn their goals, and design work that feels clean, modern, and ready for real customers. We believe good design should be easy to understand and accessible for every business. We focus on friendly communication, smooth project management, and high-quality work that helps brands look professional and trusted. Whether you need a complete brand overhaul or a fresh website that loads fast and converts visitors, our team is here to make the process simple from start to finish.
Looking for work in Cross Platform Development
Located in Atlanta, United States
From €1,000 for Cross Platform Development
Worked in Food (+8)
Speaks English
201-500 members
Uinno
(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 Development
Located in New York, United States (+2)
From €1,000 for Cross Platform Development
Worked in Sports (+6)
Speaks English, Spanish(+1)
51-200 members
Vareweb
4.9
(6 reviews)
Web Design, Digital Marketing & Automation That Drives Growth
Highly recommended
Vareweb is a Dallas-based web design, digital marketing and GoHighLevel automation agency helping businesses attract more leads, improve conversions and simplify follow-up. We design conversion-focused business websites, landing pages and eCommerce stores built for strong user experience, mobile performance and search visibility. Our digital marketing services include SEO, local SEO, Generative Engine Optimization (GEO), Answer Engine Optimization (AEO), content marketing, paid advertising, social media management and conversion tracking. We also build GoHighLevel CRM and automation systems for lead capture, pipeline management, appointment booking, email and SMS follow-up, missed-call responses, nurturing campaigns and review requests. By connecting websites, marketing and automation under one team, Vareweb helps businesses move from online visibility to qualified leads and consistent customer follow-up without relying on multiple disconnected providers.
Looking for work in Cross Platform Development
Located in Dallas, United States
From €500 for Cross Platform Development
Worked in Hospitals & Healthcare (+7)
Speaks English
51-200 members
Devs On Steroids LLC
(0 review)
Code Crafted by Humans, Not Algorithms
DevsOnSteroids isn’t your typical web dev shop. We’re the coding rebels who’d rather wrestle a 3D model integration at 2 AM than recycle a template. Born from a team of developers who eat complexity for breakfast, we build websites, apps, and digital experiences that don’t just work, they roll. Think of us as your tech partners in crime: whether you need a landing page that converts like crazy, an e-commerce platform smoother than a jazz riff, or a 3.js-powered visual masterpiece that makes competitors sweat, we’ve got your back.
Looking for work in Cross Platform Development
Located in Queens County, United States
From €100 for Cross Platform Development
Worked in Hospitals & Healthcare (+2)
Speaks English, Bengali(+2)
11-50 members
Garraje
5
(11 reviews)
Garraje | In Digital We Trust.
Highly recommended
Top awarded
Garraje is a 360° Digital, Public Relations and Marketing agency based in Istanbul, Miami, Dubai and Casablanca, serving clients in the USA and EMEA region. Garraje was initially launched in 2013 with the goal of offering an advertising solution that was data driven, transparent, and people centered. We are a borderless agency, which works with clients across the globe and are able to do so due to our culturally diverse, performance driven and technology savvy team. Why choose us? The world is changing rapidly, today’s business challenges are more complex than ever and brands are struggling to stay ahead. Today’s marketing challenges need agile, global, multi-disciplined teams of experienced minds. Traditional advertising, marketing and digital agencies are built around fixed head costs, siloed profit centres and limited in-house capabilities. That is why we created Garraje , the fullservice agency to identify, design, produce and measure the bravest boldest ideas that truly move your business forward. We work closely with clients from around the world, getting to the heart of their business to develop successful digital ideas and strategies that engage and convert significant, targeted results. Our partners As a leading digital and award winning agency in Istanbul, we look to engage with our clients beyond the conventional design and development agency relationship, becoming a partner to the people and companies we work with. We have a large network of more than 100 partner ( Microsoft, AWS, IBM, Google Cloud, Bing, Yandex, Yahoo, Mailchimp, WP Engine, Woocommerce, Shopify, Facebook and much more ... )
Looking for work in Cross Platform Development
Located in Miami, United States (+1)
From €1,000 for Cross Platform Development
Worked in Government & Administration (+9)
Speaks English, Arabic(+5)
11-50 members
Scopic Software & Scopic Studios (Marketing Agency)
5
(4 reviews)
Top awarded
Scopic is a global software development company with 20 years of experience crafting secure, AI-enabled custom software solutions, with 250+ skilled professionals across 6 continents delivering 1000+ successful projects and earning 100+ five-star reviews on Clutch, GoodFirms, DesignRush, Guru, and Google. Its sister company, Scopic Studios , is a full-service digital marketing agency and affordable growth partner that leverages AI-driven strategies — spanning SEO, GEO, PPC, and next-generation search visibility — to help businesses stand out in both B2B and B2C markets. Together, the two companies serve a wide range of industries including Healthcare, Education, Media & Entertainment, Manufacturing, Ecommerce, Finance, Cannabis, and Dental & Orthodontics, offering everything from bespoke software and cloud architecture to 360-degree digital marketing, all with affordable pricing and HIPAA-compliant, SOC 2 Type I certified standards. Reach out for a free quote at sales@scopicsoftware.com
3 works in Cross Platform Development
Located in Boston, United States (+1)
From €1,000 for Cross Platform Development
Worked in Telecommunications (+11)
Speaks English, Arabic(+3)
201-500 members
SotaTek
5
(5 reviews)
Empowering business success with State-of-the-Art-Technology
Top awarded
SotaTek, a subsidiary of Sota Holdings, is a global IT Services & Consulting company headquartered in Vietnam, with offices in the US, Australia, Singapore, Japan, and Korea . We specialize in delivering end-to-end software development services, including Web, Mobile, and Game Development, as well as Blockchain, AI & Machine Learning, Cloud and ERP/CRM solutions that are scalable, cost-effective, and tailored to each client’s needs. With 10+ years of experience and a team of 1,300+ skilled IT consultants and developers, we combine deep technical expertise with multi-industry knowledge to ensure successful outcomes. Our portfolio covers Banking & Finance, Insurance, Automotive, Media & Entertainment, Retail, Healthcare, Education, and more. To date, we have delivered 500+ projects for clients in 25+ countries, consistently earning trust through quality and innovation. True to our name, State of the Art Technology , we are committed to providing cutting-edge digital solutions that help businesses stay ahead in a fast-changing world.
1 work in Cross Platform Development
Located in Cầu Giấy, Vietnam (+5)
From €1,000 for Cross Platform Development
Worked in Transportation (+14)
Speaks English, Chinese(+3)
1001-5000 members
Inceptives Digital
(0 review)
Your Trusted Software Development Experts for Scalable Growth!
Top awarded
We transform ambitious ideas into powerful digital realities, backed by in-depth industry expertise and a passion for delivering results.
Looking for work in Cross Platform Development
Located in Austin, United States
From €1,000 for Cross Platform Development
Worked in Hospitals & Healthcare (+3)
Speaks English
51-200 members
Pastilla
(0 review)
Full-service creative agency. Building brands, campaigns & platforms for the public good.
Top awarded
Pastilla is a full-service creative and digital agency with 20+ years of experience delivering trusted results for Fortune 500 companies and major public institutions. We offer branding, campaign strategy, web and app design, UX/UI, and digital communications, with a longstanding track record across government, education, healthcare, and nonprofit sectors. Our clients include Microsoft, SAP, VMware, Cedars-Sinai, City of Los Angeles, Santa Clara Valley Water, and Clean Power Alliance. By blending analytical approaches with human-centered practices, you can expect clear timelines, strong stakeholder management, and work that delivers measurable results.
Looking for work in Cross Platform Development
Located in Pasadena, United States
From €5,000 for Cross Platform Development
Worked in Non-profit (+6)
Speaks English, Chinese(+3)
11-50 members
Horizon Labs
(0 review)
Founder-led product teams that ship web, mobile, AI & embedded—fast and clean.
Horizon Labs is a founder-led product development agency with teams in California and Turkey. We help startups and SMB/mid-market teams build and modernize software across web, mobile, AI/LLM, and embedded/IoT. Clients bring us projects when they need a partner that can move fast without sacrificing quality—especially when there are messy legacy systems, integrations, or high reliability requirements. Typical engagements include MVPs, dealer/customer portals, Sharetribe marketplace customization, HIPAA-ready healthtech apps, IoT dashboards, and cloud/DevOps pipelines. Ways to work with us: discovery sprints, end-to-end delivery, or staff augmentation. We’re known for clear communication and direct access to senior engineers/founders—reflected in 5★ Clutch feedback for on-time delivery and strong collaboration.
Looking for work in Cross Platform Development
Located in Irvine, United States
From €3,000 for Cross Platform Development
Works in multiple industries
Speaks English
11-50 members
Bluelight
(0 review)
👨‍💻 Bluelight is a leading custom software development company with a team of top-quality software developers from 6 different countries spanning the US, Canada, and LATAM, enabling companies to achieve their roadmaps with speed and precision. 🛠️ We offer a wide range of services, including Software Development Services, Staff Augmentation, Development Teams, SOC 2 Compliance, DevOps and Cloud Services, Custom AI Solutions, and much more. 🤖 We have expertise in various technologies such as React, Node.js, Python, .NET, Java, Ruby, PHP, Golang, and Angular. 📲 Bluelight also provides solutions in QA Testing & Automation, Business Intelligence, Data Science, iOS and Android App Development, and UX/UI Design. 🚀 Our mission is to be a reliable partner empowering businesses with cutting-edge software, technology, and infrastructure solutions that deliver value and drive societal transformation.
Looking for work in Cross Platform Development
Located in Sacramento, United States
From €10,000 for Cross Platform Development
Worked in Logistics & Supply Chain
Speaks English
201-500 members
Blue Developments
(0 review)
Blue Developments
We are a premier software house providing AI development, software design, and development services since 2017. Our expertise includes website and mobile application development, as well as custom software solutions
Looking for work in Cross Platform Development
Located in Heliopolis, Egypt
From €10,000 for Cross Platform Development
Worked in Automotive (+7)
Speaks English, Arabic
11-50 members
Appson Technologies
(0 review)
We Innovate Your Thinking
We Innovate Your Thinking Appson Technologies is an AI-first software development company founded in 2016, with offices in the United States and India. We have delivered 120+ projects for clients across North America, Europe, the Middle East, Latin America and Australia. We partner with businesses to solve the challenges that slow growth: manual processes, disconnected systems, lost opportunities, product gaps, and limited technical capacity. From AI agents and automation to custom software, SaaS platforms, web and mobile applications, we build technology with a clear business purpose. We listen first, challenge assumptions, and recommend what genuinely makes sense for your business. You work directly with experienced engineers, supported by clear communication and accountability from strategy through delivery and beyond. You bring the challenge. We bring the strategy, technology, and commitment to move your business forward.
Looking for work in Cross Platform Development
Located in Indore, India
From €1,000 for Cross Platform Development
Worked in Software & Computer Services (+3)
Speaks English
51-200 members
DigiTrends
(0 review)
In 2010, DigiTrends debuted itself as a versatile digital agency with a mission of digitizing a range of sectors, including pharma, banking, e-commerce, retail, and others. It immediately emerged as a pioneering digital outfit, offering diverse marketing solutions and digital services. Our expertise in digitization has enabled us to transform many leading businesses, revolutionizing the tech industry in the process. Our success earned us wide-spectrum popularity and inspired us to broaden the horizon of our industrial expertise and global reach; DigiTrends emerged as a full-stack digital outfit. With our perfect aggregate of comprehensive digital strategies, effective communication, and tactical execution DigiTrends is now a world-leading IT firm with a full range of software development services and consultancy with a futuristic vision; DigiTrends resolves to empower its clients with robust digital services and expert marketing solutions.
Looking for work in Cross Platform Development
Located in Wilmington, United States
From €1,000 for Cross Platform Development
Worked in Hospitals & Healthcare (+2)
Speaks English
201-500 members
Fordewind.io
(0 review)
At Fordewind.io, we are pioneering the future of IoT Software Development, Engineering, and Prototyping. Our headquarters are located in Kyiv, Ukraine, but our impact reaches far beyond borders. We are driven by the relentless pursuit of innovation, specializing in such key domains: Smart home, Smart City, Healthcare, Automotive industry, and cutting-edge Industry 4.0, Agriculture, and Renewable Energy projects. Our team comprises IoT professionals based in Kyiv, Ukraine, with expertise in: IoT Hardware + Firmware; IoT Backends + Frontends; Mobile App Development + BLE; Cloud Solutions and QA. Outsourcing is at the heart of what we do. We pride ourselves on being a premier outsourcing partner, collaborating closely with European and US enterprises, as well as corporate and private businesses. Our dedicated team of experts is not just an extension of your workforce; we are your innovation partners, bringing fresh perspectives and expertise to every project.At Fordewind.io, we don't just adapt to change; we drive it. Partner with us to unlock the full potential of IoT and embark on a journey of innovation and progress. Join the ranks of those who have entrusted us to bring their visions to life, and experience the future of technology, today.
Looking for work in Cross Platform Development
Located in Kyiv, Ukraine
From €1,000 for Cross Platform Development
Worked in Hospitals & Healthcare
Speaks English, German(+1)
11-50 members

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