Top Cross-Platform Development Companies in New York, New York

Entalogics

Verified

Top-tier AI-Augmented Software Development & Cybersecurity Company

5.0(103)

5.0

103 reviews

Entalogics is an AI-augmented software development and cybersecurity solutions company with 600+ delivered projects for clients across North America, Europe, Middle East, and Asia-Pacific. We cover all major business timezones and work exclusively in English. We commit to fixed-price contracts. No open-ended retainers, no estimate creep. Before any build starts, we scope it precisely: delivery timeline, budget, and feature set are agreed and locked. This is our default engagement model, not a premium option. Every engineer is senior-level. This is a hiring policy, not a sales pitch. No juniors on client projects. The engineer in your scoping call is the engineer building your product. AI is our operating model, not an add-on. Every engineer works inside AI-augmented workflows across the full lifecycle. AI handles boilerplate, testing, and documentation. Engineers handle architecture, business logic, security, and code review. Production-grade output in weeks, not months. Security is built in, not bolted on. Every product we ship goes through threat modeling, secure code review, and pre-launch testing as standard — not as an upsell. We also offer standalone cybersecurity solutions: security audits, penetration testing, and hardening for products built elsewhere. What We Build: * Complex SaaS platforms * AI-powered products (LLM integration, agents, automation) * Custom Chromium browsers (fewer than 10 teams globally with this expertise) * Web apps (React, Next.js, Node, Django, Laravel) * Mobile apps (Flutter, React Native, native iOS/Android) * Desktop applications (Electron, Tauri) * Cybersecurity solutions (audits, penetration testing, secure architecture) * UI/UX design, cloud, and DevOps We rescue projects that have gone wrong. Products damaged by poor engineering and products built with no-code or vibe-coding tools that outgrew what those tools can support. We stabilize, refactor, secure, and bring them to production-grade under a fixed-price scope. Our team augmentation goes further than staffing. Every engineer we place works inside AI-augmented workflows by default. You are not getting extra hands. You are getting engineers who deliver 2-3x the output with documented, maintainable code. Recognized by Clutch, GoodFirms, Upwork and TopDevelopers globally with 5.0 ratings. The scope changes. The standard doesn't.

Brights

Bright people building bright software

5.0(5)

5.0

5 reviews

Founded in 2011, Brights is a custom software development company headquartered in Warsaw. We build scalable digital products for startups, SMBs, and enterprises, combining strong engineering depth with a genuine partnership mindset. Over 15 years, we've grown into a team of 120+ specialists and delivered 300+ projects for clients in 30+ countries. We hold ISO/IEC 27001 certification, have earned 24 industry awards and recognitions, and maintain a 4.9/5 rating on Clutch — but what we're most proud of is simpler: 70–80% of our clients stay with us well beyond the initial engagement. What We Do: We provide end-to-end software development services across the full product lifecycle: from early-stage idea validation and MVP development to scaling complex enterprise platforms. Our core services include: - Custom web and mobile app development - UI/UX design and product design - AI/ML integration and custom AI development - Cloud engineering and DevOps - SaaS development and consulting - Dedicated development teams and staff augmentation - UX audit and product modernization We work across industries including fintech, insurtech, logistics, edtech, e-commerce, healthcare, real estate, and travel & hospitality. How We Work: At Brights, we act as co-creators — not just executors. Our specialists bring ideas, initiative, and ownership to every engagement. We focus on understanding the business goals behind every project, not just the technical requirements. That means our teams actively contribute to product decisions, suggest improvements, and help clients think strategically about their technology. We offer flexible engagement models to fit different project stages and business needs: Time & Materials, Dedicated Team, Fixed Cost, and milestone-based billing. Our Tech Stack: We work with modern, proven technologies across the full stack: Frontend: React, Vue.js, Angular, Next.js, Nuxt.js Backend: Node.js, NestJS, .NET, PHP, Laravel, GraphQL Mobile: React Native, Swift, Kotlin Cloud & DevOps: AWS, Azure, GCP, Kubernetes AI/ML: Python-based frameworks, custom model integration CMS: Storyblok, Prismic, Strapi What Makes Us Different: Three things define how Brights operates: 1. People first. We hire for depth — our engineers understand systems at a foundational level and can solve hard problems, not just complete tasks. And internally, we invest in each other just as much as we invest in client projects. Strong teams build strong products. 2. High standards, always. We are selective in hiring and demanding in delivery. Our specialists are celebrated for going beyond — because we genuinely believe that transcending limits is what separates good software from great software. 3. Co-creators, not doers. Our average client relationship lasts over three years. That's not an accident — it's the result of treating every engagement as a long-term partnership, not a transaction. Trusted by Leading Brands: We've collaborated with globally recognized organizations including Mastercard, Microsoft, Pepsi, and Danone, as well as Fortune 500 companies such as Coca-Cola, McDonald's, and Kimberly-Clark. We are also proud to be a tech partner of the Serhiy Prytula Charity Foundation, supporting Ukraine's defense and civilian relief efforts. Awards & Recognitions: - Clutch Top 1000 Global Companies 2025 - Top AI Strategy Company 2024 - ISO/IEC 27001:2022 Certified - Storyblok, Hygraph, and Strapi Certified Partner - Top Software Development Company — GoodFirms & The Manifest

Simpalm

Verified

Award Winning Mobile, App & Web Design Company

5.0(23)

5.0

23 reviews

Simpalm 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. Some of our customers include, Bamboo, WindowNations, Pepsi, AudiobooksNow.

Magneto IT Solutions

Next-Gen Digital Commerce and Growth Marketing Partner

Magneto IT Solutions is a global, AI-driven Digital Commerce and Growth Marketing Partner leading how ambitious B2C, D2C, and B2B brands build, scale, and grow high-performance digital commerce ecosystems. Operating across North America, the United Kingdom, Europe, MENA, Australia, and Asia, we partner with brands at a strategic level and take ownership of commerce growth outcomes, not just execution. Our work spans enterprise commerce platforms, composable and headless architectures, AI-driven personalization, and performance-led growth strategies built for global scale. We act as a strategic extension of our clients’ leadership teams, collaborating closely with CXOs, digital, technology, and marketing leaders to align commerce initiatives with measurable business objectives. Our approach is consultative, data-led, and outcome-driven, ensuring every investment is tied to growth, efficiency, and long-term impact. By seamlessly integrating strategy, commerce engineering, customer experience, and growth marketing, Magneto IT Solutions enables brands to scale globally with confidence, clarity, and control while building future-ready commerce ecosystems in an increasingly competitive digital world.

Escolhadigital

Verified

Digital Product Design & Development

We have been developing websites and applications for 10+ years, completing various innovate and critical projects, as well as providing consultation for high-level strategic and architectural project decisions. At Escolhadigital, we believe in delivering unrivaled services to help the businesses taking lead over their competitors. Some well-known brands we have helped are Barkyn, Marley Spoon, Multipessoal, Água do Vimeiro and others. Why Escolhadigital? - Top-notch technical background - Direct communication with our team with no third-person involvement - Agile development - Transparency - Budget adapted to your needs What we do? - UI/UX Design - Design Research & Audit - Web Development - Mobile Development Let's build something amazing! 🚀

Sell My Code

Buy and sell source code, apps, SaaS solutions, scripts, and digital products online.

Sell My Code is a leading marketplace where developers, startups, agencies, and entrepreneurs can buy and sell source code, mobile apps, websites, SaaS products, scripts, themes, templates, plugins, and other digital assets. Whether you're a developer looking to earn from your existing projects or a business searching for ready-to-use software, Sell My Code offers a secure, reliable, and easy-to-use platform for seamless transactions. By connecting buyers with skilled creators from around the world, the platform helps businesses save development time, reduce costs, and launch products faster. From MVPs and custom applications to fully featured software solutions, Sell My Code makes it easy to discover, purchase, and sell high-quality digital products in one trusted marketplace.