We have carefully assessed the technology stacks, team structure, industry diversity, portfolios, client testimonials, pricing plans, and relevant awards of over 800 .NET development companies. Learn more about our ranking criteria and how we identify the top players in the .NET development industry below.

The Number 1 .NET Development Company as Selected by DesignRush Is...

1. Leobit

• Best for: Overall
• Average hourly rate: $40
• Minimum budget: $25,000 - $50,000
• Founded: 2014
• Size: 100 - 249
• Location: Lviv, Ukraine
• Notable clients: Antourage, Realized Technologies, Sporfit AS, EZY Gaming

Leobit has expert competency in the full range of application development services, ranging from UX consulting and discovery to prototyping and testing. As a Microsoft Gold Certified Partner, its technology stack includes ASP.NET MVC, ASP.NET Web API, and ASP.NET Core.

Leobit staffs over 170 software engineers, architects, QA testers, and project managers from the best technical universities. The #1 .NET development company in Ukraine has worked with Fortune 500 and Silicon Valley startups.

A Norwegian SportsTech company wanted to create a cycling software platform featuring virtual routes, competitions, and challenges and enabling instructors to schedule indoor cycling classes. Using .NET 6 technology, Leobit developed a cycling solution with gamified elements and migrated it to the cloud.

The application had 60k+ downloads on Apple Store and Google Play, and the number of users grew 15 times from 20,000 to 350,000. The solution was so successful, it was acquired by a leading US-based indoor cycling hardware manufacturer.

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2. CSHARK

• Best for: Industry diversity
• Average hourly rate: $50
• Minimum budget: $25,000 - $50,000
• Founded: 2014
• Size: 250 - 499
• Location: Wroclaw, Poland
• Notable clients: Pixel Guru, Focis, Nudge, Meta Bytes

CSHARK offers end-to-end development, product design, minimum viable product (MVP) development, and supporting services. The company stays on top of the latest .NET technologies, as well as Azure, SaaS, serverless, cloud, and AWS services. From 2019 to 2021, it was named among the 1,000 fastest-growing companies in Europe.

Kanri wanted to build a digital administration system for machine operators, foremen, mechanics, and shift supervisors. The solution required data acquisition, processing, and visualization tools that could be hosted on-premises or in the cloud.

CSHARK conducted deep industry research to deliver a detailed backlog and wireframes. These integrated and automated lean processes through .NET, React.js, and TypeScript. The final product landed three new clients for Kanri, with more companies testing the solution in their factories.

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3. Brainvire

• Best for: Quality management
• Average hourly rate: $25
• Minimum budget: $1,000 - $10,000
• Founded: 2010
• Size: 1000 & Up
• Location: Irving, TX
• Notable clients: Fox Sports, Toyota, Southwest Airlines, Nike

A Microsoft Gold Partner and top-ranked ASP.NET development company, Brainvire is an expert in web and software development solutions. Its expertise is quality management, backed up by certifications including ITIL, Prince2, and OWASP.

One of Brainvire’s clients created AI-based software to help landlords list commercial and private spaces to find tenants without needing an agency. The original solution had a long and complicated real estate publishing process, unclear property descriptions, and lacked quick data access.

Using .NET technology to convert voice queries into text, Brainvire sped up the property publishing and searching processes. With new features like geolocation, images, videos, and chat, landlords could even find tenants faster and communicate with them directly.

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4. Brainhub

• Best for: Top engineering talent
• Average hourly rate: $99
• Minimum budget: $25,000 - $50,000
• Founded: 2014
• Size: 100 - 249
• Location: Gliwice, Poland
• Notable clients: National Geographic, Paradox Interactive, Beam, Omnicar

Brainhub is a .NET development company that delivers web, mobile, and desktop projects in fintech, education, healthcare, and other industries. The company is known for its rigorous, multi-phase screening process — only the top 1.36% of applicants (a mere handful out of hundreds) pass all the phases and get hired.

Beam reached out to Brainhub to get its help in becoming a leader in the scooter-sharing market in Asia-Pacific. Its app had to support 10,000 riders daily and required an API integration for real-time data sharing with local governments.

Brainhub built a .NET-based solution consisting of the API and mobile and desktop app, incorporating new features like smart charging monitoring. The app was installed over 10 million times, positioning Beam as the largest micromobility name in APAC.

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5. Altoros

• Best for: Improving legacy solutions
• Average hourly rate: $50
• Minimum budget: $25,000 - $50,000
• Founded: 2001
• Size: 250 - 499
• Location: Pleasanton, CA
• Notable clients: Siemens, Sony, Zanobo, Xively

Altoros is a .NET development provider of high-end solutions for IoT, finance, automotive, marketing, construction, and many other industries. Awarded the 2022 TechBehemoths Award for Top Custom Software Development Company in the United States, its 350+ employees, of which 56% are seniors and 44% are mediors, are hired from the top 3% of development talents in Europe and the US.

An anti-doping provider for sports organizations needed help migrating its iPad management system app to the .NET framework. Built on legacy technology 10 years ago, the app stopped functioning after the release of a new iOS version. The system also struggled to adapt to changing workflows for each new sporting event, requiring extra time and developer interventions.

Altoros successfully migrated the app to a new technology stack, eliminated maintenance issues, and automated doping control workflows. It also moved 2.5 billion documents, enabling non-technical staff to create custom processes and saving the client thousands of dollars.

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6. ScienceSoft

• Best for: Large-scale .NET projects
• Average hourly rate: $50
• Minimum budget: $10,000 - $25,000
• Founded: 1989
• Size: 500 - 999
• Location: McKinney, TX
• Notable clients: NASA, Walmart, Nestle, eBay

ScienceSoft is a .NET development expert in the design, implementation, testing, evolution, integration, and modernization of applications. The company has been a Microsoft Partner since 2008 and counts over 220 large-scale .NET projects in its portfolio.

One of ScienceSoft’s clients had outdated software for monitoring and forecasting energy consumption. The company seamlessly transitioned the desktop application, which was written in the obsolete Microsoft VB6.0 language on MS SQL Server, to the .NET technology stack.

This improved the performance and integrated better reporting features, such as chart and presentation creation.

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7. Clarion Technologies

• Best for: Project success ratio
• Average hourly rate: Inquire
• Minimum budget: Inquire
• Founded: 2000
• Size: 250 - 499
• Location: White Plains, NY
• Notable clients: Redline, Health Workforce NY, IRIS, Flimp Communications

Boasting a 98% success ratio across 1,000+ client projects, Clarion is a reliable partner for .NET migration, ASP.NET Core, .NET MVC, SharePoint, and C# solutions. This .NET development company offers a unique VEmployee model that lets clients augment their teams as needed. It provides developers from the top 5% of talent, with free support from a project manager, quality auditor, and technology experts.

Mortgage provider Protec wanted a software solution to simplify document preparation, processing, and compliance in its loan processes. Many procedures were done manually, taking weeks to complete.

Clarion developed an easily upgradeable cloud-hosted web application that can store a large amount of loan data. The app reduced invoice generation time from weeks to a couple of days, and the new automation system for database scaling saves Protec approximately $2,000 per month.

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8. TatvaSoft

• Best for: Azure development
• Average hourly rate: $20
• Minimum budget: $10,000 - $25,000
• Founded: 2001
• Size: 500 - 999
• Location: Ahmedabad, India
• Notable clients: Anglo American, Bemi OY, AE Partners

A Microsoft Certified Gold Partner, TatvaSoft offers Azure development, ASP.NET web app development, .NET Core development, Windows Presentation Foundation (WPF) app development, and supporting services. The company has a portfolio of over 1,800 projects and more than 800 global customers from insurance, education, energy and utilities, healthcare, media, and other industries.

A client from the education industry contacted TatvaSoft to create a software solution to optimize time-consuming, paper-based administrative tasks such as student registration, enrollment, management, and monitoring processes.

TatvaSoft suggested an integrated solution based on .NET technology to streamline, automate, and simplify all administration. The new solution:

• Created a centralized database of students and staff
• Made it easy to manage grades, attendance, exam schedules, events, libraries, and fees
• Provided instant updates via email, SMS, and in-app notifications

Check TatvaSoft Agency Profile

9. Itransition

• Best for: Healthcare projects
• Average hourly rate: $40
• Minimum budget: $50,000 & Up
• Founded: 1998
• Size: 1,000 & Up
• Location: Lakewood, CO
• Notable clients: PayPal, Adidas, eBay, Philips

Itransition is a .NET development company with 25+ years of experience in web services, mobile and desktop engineering, and cloud infrastructure support. Since 2008, it has been consistently recognized as one of the top IT service providers on the Global Outsourcing 100 list.

It offers expert development for a wide range of industries like healthcare, finance, retail, automotive, telecommunications, and insurance. To add to this, Itransition has a strong portfolio of healthcare projects including hospital management software, telehealth solutions, medical data analytics, patient portals, etc.

Due to an increasing number of customers, an accounting and tax management solution company needed to update its existing SaaS application. Its goal was to support more concurrent user sessions, be globally available, and automate its accounting processes.

Itransition migrated the application to a new architecture and upgraded the technology stack, enabling the .NET-based application to support up to 500 concurrent users and 300,000 incoming bills per month. This expansion helped the client increase its customer base by over 1,500 companies, including 100+ Fortune 500 clients and 50+ accounting firms.

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10. Innowise

• Best for: Client satisfaction
• Average hourly rate: $150
• Minimum budget: $25,000 - $50,000
• Founded: 2007
• Size: 1,000 & Up
• Location: St. Petersburg, FL
• Notable clients: Deloitte, BMW, Accenture, IMT

With a team of 1,600+ IT professionals, Innowise provides .NET web, mobile, and desktop solutions for agriculture, construction, finance, logistics, and other industries. The company has proven expertise in B2B and B2C portals, application programming interface (API) and web services, customer relationship management (CRM) development, extranet and intranet solutions, line-of-business apps, and more.

A pioneering medical institution contracted Innowise to modernize its legacy radiology information system. Its main performance issues included patient scheduling mismatches, security vulnerabilities, and a lack of reporting features.

Innowise developed a .NET-based software system that was compliant with IEC 62304 safety standards, the highest for medical devices. The software also reduced patient wait times by 35%, sped up report generation by 70%, and eliminated 50% of scheduling errors.

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How We Picked the Best .NET Developer Companies

To select the top .NET development companies in 2024, we reviewed their testimonials, case studies, industry reputation, team expertise, client roster, and executive management. Our team of agency experts developed a scoring system to measure their overall performance based on several important factors:

• Reviews: Quality of work, client satisfaction, and level of trustworthiness
• Portfolio: Tangible examples of an agency's track record
• Awards and press: Industry reputation and innovation
• Team bios: The agency’s qualifications and team dynamics
• Top services: Core competencies and areas of expertise

Visit the DesignRush Agency Ranking Methodology for more information on how we research agencies.

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