Top Custom Software Development Companies in Greenwich, Connecticut

Treeview

Verified

XR Studio for Enterprise

5.0(36)

5.0

36 reviews

Treeview is a leading enterprise XR development studio specializing in custom augmented reality, virtual reality, mixed reality, and spatial computing software for global organizations. Founded in 2016, Treeview partners with enterprise innovation teams to design and develop production-ready AR, VR, and XR applications across healthcare, manufacturing, retail, energy, workforce training, immersive simulations, AI-powered digital twins, and spatial data visualization. Treeview has delivered custom enterprise XR solutions for Microsoft, Meta, Medtronic, ULTA Beauty, Daiichi Sankyo, Transfr, the University of Alberta, and NEOM. These projects range from AI-enabled immersive digital twins and medical VR applications to large-scale training simulations and spatial computing platforms deployed across global teams. Treeview’s work has been featured in Forbes, Bloomberg, Microsoft Featured Stories, Fast Company, Business Wire, Business Insider, Glossy, and TechCrunch, reflecting the studio’s role as a trusted enterprise XR partner. With more than a decade of production experience in AR/VR/XR development, Treeview continues to lead the XR industry and support global enterprises seeking high-quality, scalable, and future-focused spatial computing solutions.

MeanPug Digital

Verified

Loyal Marketing for Ambitious Law Firms

MeanPug Digital provides award-winning marketing to ambitious law firms. We specialize in design and branding, web development, SEO, digital advertising, legal content implementation, PR, CRM integration, custom software development, traditional media advertising, and strategic consulting for firms that want to challenge the status quo.

Crush and Lovely

Crush & Lovely is a digital product development agency specializing in mobile and web applications for health, media,...

4.7(1)

4.7

1 review

Crush & Lovely is a digital product development agency specializing in mobile and web applications for health, media, and social impact organizations. They develop photo-heavy apps like National Geographic's mobile magazine experience, create digital tools such as Rooms To Go's sofa configurator, and build platforms for clients including the American Heart Association, Doctors Without Borders, and Triller's music video app.

Cognizant

Cognizant (Nasdaq-100: CTSH) engineers modern businesses.

Cognizant (Nasdaq-100: CTSH) engineers modern businesses. We help our clients modernize technology, reimagine processes and transform experiences so they can stay ahead in our fast-changing world. Together, we’re improving everyday life.

Network Handlers

Network Handlers is a technical consulting firm specializing in custom software development for large enterprises and...

Network Handlers is a technical consulting firm specializing in custom software development for large enterprises and government agencies. They provide AI-powered platforms, CRM & ERP integration, LMS deployment, cybersecurity solutions, and comprehensive e-government systems with a focus on secure, cloud-based implementations.

MFD

Mexicode is a software development company that connects US businesses with top-tier Mexican development talent.

Mexicode is a software development company that connects US businesses with top-tier Mexican development talent. They specialize in custom software solutions across industries including pharmaceutical, healthcare, e-commerce, and internal management systems, offering dedicated teams with 5+ years of average experience and maintaining a 100% client satisfaction rate.

Automatic Technology Solutions is a results-driven IT and marketing company helping businesses grow through intelligent digital transformation. We specialize in combining advanced technologies with strategic marketing to deliver measurable business outcomes. Our services include custom software development, AI-powered solutions, performance marketing, SEO optimization, and scalable e-commerce systems. What sets us apart is our ability to bridge the gap between technology and growth. We don’t just build solutions — we create systems that attract customers, increase conversions, and drive long-term revenue. With experience working across international markets including the US, Dubai, and Africa, we bring a global perspective to every project while adapting strategies to local business needs. Our approach is simple: data first, execution fast, results measurable. Whether you're a startup looking to launch or an established company aiming to scale, we provide the tools, strategy, and execution to move your business forward.

Vanguard X specializes in embedding senior AI-native engineers directly into client teams for long-term engagements. They provide expertise in LLM development, machine learning models, cloud-native data infrastructure, custom software development, QA testing, mobile app development, cloud infrastructure, and UX/UI design with a focus on AI-first solutions.

Vention

Engineering peace of mind

As a software development company with 20+ years in the field, Vention provides innovative services to startups and large enterprises. The company tackle projects of any complexity and size, delivering outstanding solutions that help clients focus on business expansion and new opportunities. With 3K+ dedicated developers globally, Vention match clients with top engineering talent in time zones that align seamlessly with their unique needs. The company’s impressive track record: • Over 500 industry-leading clients, including PayPal, IBM, Mount Sinai, PwC, and Postman. • Contributions to client acquisitions exceeding $15B. • Clients typically save up to $600K annually. • An average client relationship of more than 36 months, demonstrating consistently high client satisfaction. • The longest client engagement has lasted 16 years. Vention provides end-to-end software development expertise, covering the full engineering spectrum—from initial concept creation to final delivery and optimization: - Custom software development - AI software development - Web and mobile development - QA and testing - Cloud & DevOps - Blockchain - AR/VR

Siberia

Siberia is a digital innovation studio specializing in product design and engineering services.

Siberia is a digital innovation studio specializing in product design and engineering services. They operate as both a Labs division for R&D consulting, research, prototyping, and validation for Fortune 100 companies, and a Studio division offering full-stack product development from roadmaps to UI design and code deployment.

Simpalm

Award Winning Mobile, App & Web Design Company

5.0(22)

5.0

22 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.

3wC is a comprehensive IT services provider specializing in small business support through managed IT services, custom web development, and enterprise software solutions. They offer on-site and remote network monitoring, cloud infrastructure management, WordPress/WooCommerce development, and custom applications using Microsoft technologies, PHP, Java, and MySQL across South Jersey and Philadelphia markets.

Fingent

Fingent is an award-winning, ISO 27001-certified custom software development company specializing in AI-integrated en...

4.7(1)

4.7

1 review

Fingent is an award-winning, ISO 27001-certified custom software development company specializing in AI-integrated enterprise solutions. They embed artificial intelligence across their entire software development lifecycle and help enterprises integrate intelligence directly into their existing systems and workflows.

Digital Destino

Digital Destino is a comprehensive digital agency based in New York that provides web and mobile development, marketing...

4.7(1)

4.7

1 review

Digital Destino is a comprehensive digital agency based in New York that provides web and mobile development, marketing and online advertising, software development including smart contracts, server hosting, and IT management and support services. They position themselves as a one-stop digital partner specializing in emerging technologies for businesses seeking technical development and strategic digital solutions.

Infinum

Infinum is a digital product development agency that specializes in product strategy and design, mobile and web.

5.0(1)

5.0

1 review

Infinum is a digital product development agency that specializes in product strategy and design, mobile and web application development, AI and data engineering, custom IoT solutions, enterprise platforms, and cybersecurity. They build comprehensive digital solutions from concept to market launch, serving businesses looking to scale through cutting-edge technology implementations.

Hivelabs is a Philippines-based IT services company specializing in custom software development, web and mobile application engineering, and comprehensive IT solutions. With over 15 years of experience, they provide software development services, cloud integrations, and digital transformation solutions for enterprises of all sizes, emphasizing well-engineered applications and proven methodologies.