Top .NET Development Companies

IT Craft is one of the best .NET development companies, offering full-cycle .NET and cloud engineering services supported by a team of 330+ engineers. As a trusted .NET development firm, the company is known for its strong engineering culture, reliable delivery process, and the ability to support organizations at any stage - whether they are launching their first MVP or modernizing a large enterprise platform. IT Craft assists a variety of clients, ranging from startups to global corporations, with developing, optimizing, and scaling digital solutions powered by .NET technology.

IT Craft provides .NET solutions, starting from operational MVPs, to enterprise-level platforms. They designed a customized POS system for restaurants that was based on .NET, allowing restaurants to handle orders in real-time. For the logistics sector, IT Craft built MyCarrier, a scalable carrier management solution with automated freight workflows and robust system integrations. The company also strengthened Adorama’s digital commerce ecosystem by developing secure .NET modules that improved product management, order flow, and overall platform performance. These projects highlight IT Craft’s ability to translate complex business logic into reliable .NET architectures backed by clean UX and predictable delivery.

Emergent Software is a US-based custom development firm known for its strong team of .NET developers delivering contemporary .NET engineering, cloud transformation, and long-term product support. They were honored as a Microsoft Solutions Partner, with a focus on developing scalable, secure, and well-architectured applications for startups, mid-market, and large-scale enterprises seeking to develop new digital solutions or transform their existing applications.

Softura is a US-based custom software development and IT services company with more than 25 years of experience and a globally distributed engineering team of 300–450 specialists. The company focuses on modern .NET development, legacy system modernization, and cloud transformation using Azure and Microsoft’s enterprise ecosystem. Softura works with mid-market and enterprise organizations across manufacturing, healthcare, logistics, financial services, and education- helping them modernize aging systems and build secure, scalable digital platforms.

These solutions demonstrate how effectively a strong .NET development company can combine scalable .NET architectures with intuitive UX and enterprise-grade performance.

Leobit is a full-cycle software engineering company specializing in .NET development, cloud transformation, and modern digital product engineering. With its delivery teams in Europe as well as the US, Leobit assists startups as well as existing organizations in the development of scalable, secure platforms with the aid of Microsoft’s technology stack. At Leobit, the focus is on delivering product-oriented development with the right architecture, from discovery to development.

iQlance is a Canadian and US-based customized software, as well as a mobile application development firm with more than 10 years of experience. At iQlance, their expertise includes .NET, as well as full-stack product development. Whether you’re starting a new business or upgrading your existing one, their team helps you transform your idea into a reality, with design-inspired development, as well as agile practices.

TatvaSoft is a global custom software development and IT services firm with expertise in .NET technology. With expertise in .NET, TatvaSoft assists small, mid-sized, as well as large corporations, in migrating their existing applications, developing cloud-ready applications, as well as scaling their applications with a wholly dedicated .NET team. TatvaSoft is a CMMI Level 3 and Microsoft Solution Partner firm.

DevCom is a Ukrainian-US custom software development company that provides full-cycle engineering services since 2000. They aid enterprises in upgrading outdated applications, transitioning applications to the cloud, as well as developing fresh applications from scratch. At DevCom, product discovery, UX/UI design, application development, QA, and DevOps services cater to enterprises that focus on different sectors, such as logistics, healthcare, finance, and other data-driven industries.

Sigli is a European custom software and data consultancy focused on digital product development, AI, and cloud-native engineering. Based in Antwerp with a distributed team across the EU and UK, Sigli helps companies turn complex ideas into production-ready .NET and cloud solutions- from data platforms and internal tools to customer-facing web apps.

The team combines product thinking with strong engineering and analytics skills, guiding clients from discovery and architecture through delivery and long-term evolution.

Itransition is a worldwide provider of software development services with more than two decades of experience in delivering top-notch solutions. With a distributed team of 3,000+ engineers across the US, Europe, and Central Asia, the company brings together highly skilled .NET developers who help clients modernize legacy systems, build scalable .NET applications, and migrate complex ecosystems to the cloud. Itransition supports startups, mid-market companies, and Fortune 500 enterprises throughout the entire application development lifecycle.

Mercury Development is a US-based software engineering firm with expertise in mobile technology that’s rapidly expanding its skill sets with a range of .NET solutions. With its more than 25 years of experience in the industry with engineering centers in the US, as well as Eastern Europe, the firm assists its clients in developing secure applications with cloud-based applications as well as cross-platform applications.

Their teams support clients across the full development lifecycle - from architecture and backend API development to testing, cloud integration, and long-term maintenance.