Top C# Custom Software Development Companies

We provide Software, Web, and Mobile development solutions for IT, Marketing, and E-commerce teams. Our development team has the necessary skills to design, code, and deploy your projects.

With offices in Toronto and Lisbon, and with the core of the development team based in Portugal, we provide software development services to companies across North America and Europe.

The projects we develop match design, user experience, usability, and technology with the best programming techniques and standards.

Our project management and quality assurance experts guarantee the best results and quality. At the same time, our design and development teams strive to find the best approach and technical solution for your projects.

Whether you are looking to develop a single project, nearshore or offshore setup, in-house development, or resource allocation, we can provide you with the development setup you require.

SharpQuest (formerly AI Software) is a custom software development firm serving technology companies and enterprise clients across a wide range of industries. We create software to tackle business problems that are mission critical. Our team sees every project through to a successful outcome for our clients.​ SharpQuest's hybrid model combines the optimal project management approach and architecture expertise of an onshore team with the efficiency of offshore fulfillment for coding and testing. Our responsible approach to outsourcing provides rapid delivery and maximum value for our clients—helping them make the most out of every development dollar. ​

Shortcode Technologies, primarily based in the US and having offices in Canada & India is an Innovative Software solutions company that caters to businesses of varied sizes. We have built products for our clients using Angular, NodeJs, Salesforce, Java and AWS. These applications are currently being used by users across the US.

We build custom web applications, mobile apps, and develop conversion focussed websites for businesses to build a strong online presence. We help companies and well-established businesses elevate their brand value & their digital marketing strategies with our shrewd yet economical solutions.

Sifars is a worldwide recognized, leading web and mobile application development company which provides high-end business solutions to all kind of business so as to establish their identity in the web-world.

Sifars is a leading web mobile and software development company providing engineered grandeur solutions. we provide best-in-class solutions that make firms thrive and enjoy the best.

Sigao is team of Agile experts and software application developers whose passion is helping customers maximize their technology investment. We believe that rapid iteration, open communication, and lean processes are the key to success in today’s modern business environment. Whether you’re seeking to overhaul your technology stack, or supercharge your business practices, we have the tools and the expertise to make it happen. 

At Signature Creative, creative innovation is in our DNA. We were born out of our client’s desire to have the best teams with the freshest ideas to execute the most creative strategies and experiences around. We also ensure ideas get results by aligning business objectives with market needs and customers desires. So for the past 13 years, we have been busy doing just that.

About A trusted Microsoft partner agency, we help clients increase their productivity through effective use of Microsoft 365 technology, specialising in Microsoft Teams and SharePoint. By focusing on strategy, development, process and enablement, we partner with medium-sized to Blue Chip organisations to transform their businesses for the good. It is our mission to support companies in their transition to an employee empowered working culture, where technical solutions crafted around your team and culture enable people to work in environments and a timeframe that suits them. The result? A more dedicated, productive and happier workforce, and a better bottom line. Services With core competencies across the Microsoft stack, enabled by understanding the people and culture in your organisation, we pride ourselves in delivering the human benefit that businesses need as well as the functional change that they demand. Our services range from expert-led consultancy, campaign-based web or app development and front end creative to full blown migration, strategic road-mapping and full-service development partnerships.

SimbirSoft was founded in 2001 to create world class software products and services for our clients. We develop custom software, mobile applications, complex web services, desktop applications, client server systems, and provide quality assurance services.
Our team of experienced software engineers, quality assurance engineers, and project managers solve complex business tasks for a variety of industries. Maintains high industry standards and invests heavily in the innovation of people, tools, products and approaches. We analyze and apply cutting edge technologies
to deliver results you can count on.

Simpalm is a full-service end-to-end mobility company, providing UIUX design, Mobile App Development, Web App Development, Backend Development, and Support. Simplam has deployed over 300+ apps in the last 10+ years and has several clients in the USA. The company consists of experienced project managers, UX designers, developers having deep knowledge of the latest technologies. They have turned several innovative visions into successful mobile apps that have increased the efficiencies of the businesses.

Simpalm is one of the leading mobile app and web development companies in the USA. Since 2009, we have been providing reliable and affordable app development services to startups as well as large enterprises. As a result, we are entrusted with iOS and Android apps development projects.

Are you ready to build the right product?

At Simple Thread we believe that great software is about people, not code. Designing amazing software requires deeply understanding the people involved and uncovering their needs. It's not just about finding the right answers, but asking the right questions. It requires more than just building features, it requires challenging assumptions.

It takes a bit of bravery, and we'd love to help you take the first step.

From user research and human-centered design to software engineering and DevOps, our team of experienced UX designers and software engineers work closely with you to design and built the right software.

Since 2010, Simple Thread has helped dozens of our partners design, build, and operate enduring digital products.

On the technical side, we adopt an iterative, agile approach to each new project we undertake, developing a flexible workflow that can be adapted to each specific customer's needs and pace.

Since 2013 we've been working with our clients, from Startups to Fortune 500 companies, to help them defend, differentiate, and transform their value proposition with custom software for web and mobile.

SITEK INC is a Software Development, IT Consulting and Staffing Services Company. It has solid footing in its Information Technology offerings. There is no project to small or too large at SITEK INC, your project will be delivered on time, within budget, and to your satisfaction every time.
We work with companies of all sizes, from smaller businesses to large international corporations.

Sixlogs Mobile is a one-stop solution for Digital Transformation, Salesforce Consultancy, Mobile App Development, E-commerce, Web Development, Videography.

Sixlogs Mobile is a top mobile app development services provider based in Houston, TX. We offer the full design, development, and deployment of a mobile app.

The teams are organized according to the desired tech stack following all your requirements. We give our clients the opportunity to spin-off and transfer their Skelia team into a fully customer-owned legal entity.

With more than a decade of experience in developing self service kiosk applications, we have delivered some of the great kiosk solutions and are supporting them remotely till date. Our expert team of mobile developers are confident to develop any type of mobile application be it just for branding or any product for a business or startup. With the talented pool of in-house designers, we design next level UI and create excellent UX for the users to gain more and attract the targeted audience.

With the years of experience and excellent pool of talented software engineers and project managers, we provide robust solutions at any scale. By using best practices, we always convert ideas of clients into the reality which caters the business needs. Our speciality in Microsoft Technologies, Mobile development, Kiosk application development, e-commerce as well as most of the open source technologies, using which we are catering clients across the globe be it clients from USA, UK, Australia, European region or Gulf region. Our portfolio consists of all types of web applications ranging from Enterprise level application to just web presence for small businesses. Going beyond the offerings of a standard software, we have created various custom software to fulfill the needs of a business and making operation smooth to achieve more productivity.

Our track record of developing software products and applications, business and technical expertise will boost your software project, accelerating your value on the market and minimizing risks. We know how important is to have a reliable and skilled partner in the IT business and we do our best to match our partners` expectations and grow together.

Smart IT is a full-cycle custom software development services provider with a core focus on helping our partners to deal with any technological issues on their way to success. Our mission is to help transform your ideas into market-ready software solutions from the ground up, taking usability, scalability, and customizability into account.

SmartApp is a Belarusian full-service company that initially focused exclusively on software development. Today, the team of our experts has expanded, which allows us to take tasks on web design and other areas. SmartApp’s specialists are ready to answer all your questions via email right now and support first your idea and then - your project.

What makes us the best? Firstly, it's our friendly team of experts. Second, it's all about values: we understand needs, we stay in touch 24/7, we're committed to long-term cooperation, we grow with our clients. Thirdly, we start with the question "Why?" to focus on benefits and results. Then, we make it a rule not to complicate things! And finally, we simply take care of each other and our partners.

Take a look at who you will be working with on our LinkedIn profile. There, you will find agency specialists in a wide variety of jobs. That's why we take care of different complex projects from business services, education, e-learning, retail, e-commerce, government, etc.

Here's a small part of those clients who have trusted us: Deutsche Telekom, Purina, WorkFusion, Bayer, Wellesley College, CarFax, Belkin. As you can see, among them, there are not only local companies but also firms from the United States and Germany. You can explore on our website what projects we have created specifically for them.

We work professionally in such areas as:

• Software Development;
• Web and custom development;
• UX / UI design;
• Digital Marketing;
• IT Consulting.

What else sets us apart? We strive to create the best solutions for our clients. We have won numerous awards for this.

For example, SmartApp was named one of the best web and software development providers in Belarus.

The feedback from our partners is a great reward for us as well. They share their opinions about the cooperation on third-party resources, Instagram, and other social networks. And we are proud to have a 10/10 rating on all channels.

Our team is made up of professionals who possess impeccable credentials in their respective fields. Smart.exe is more than a group of experts; we are focused on helping companies bring their innovative ideas to the market – our staff is our greatest asset.

SNFOSys is a strategic IT solutions firm based in New Jersey. The company was founded in 2006 out of a passion for delivering Internet solutions with deeply skilled and experienced professionals. Having helped Bank of America, Merrill Lynch, Visitor Coverage, SN Insurance develop their software, we know what defines successful software across all industries. We Leverage our more than 10 years of expertise to provide a solid software foundation for your business.

Softage is a growing team of professional software engineers and quality assurance specialists with a proven track record of delivering complex enterprise solutions. We cover every step of the software development life cycle and utilize technologies that are best suited for building robust, fault-tolerant solutions designed with scalability in mind.

We have been developing tailor-made software solutions for over 15 years. We use Java, .NET, and other mainstream technologies to build scalable and reliable enterprise systems that help thousands of users every day. What we do 1. Software architecture design and development We build and implement systems that increase productivity, automate routine operations, and reduce the factors of human error. 2. Data migration and software re-engineering We help you switch from legacy, outdated software to modern, cloud-based solutions with minimal effort. 3. Testing and quality assurance We thoroughly test every line of code produced and genuinely care about its quality and stability. 4. Technical support and maintenance We stay in close contact with our clients and help them keep their software fully operational long after delivery.

We are a software development firm with vast experience building and working with large, robust and complex systems using the latest technologies, our team builds and maintains software that is being used by many of the largest U.S. Corporations — Fortune 500 companies, Big Four accounting firms, and U.S. Federal agencies including the Internal Revenue Service of the United States.

SoftEdge Technologies designs and develops custom web and mobile applications — independently or in partnership with your own internal development team. Need a full team to build your project? No problem. Need to quickly expand your in-house team? We’ve got you covered. Big project or small, we can scale to meet your needs. Software Development is carried out in our Montevideo development center, by our full-time, in-house team of coders, engineers, and testers. You get excellent coding and problem-solving with the cost benefits of offshoring, but within a local time zone. We’re working when you are!

SoftElegance is a custom software development company that has been providing reliable services for implementation of SaaS systems, sophisticated business solutions, engineering applications, and business processes automation software. A variety of companies, ranging from dynamic small and medium to Fortune 500, across oil and gas, drilling, engineering, and manufacturing industries, use SoftElegance's software development outsourcing services.

Softura’s application modernization suite of services enables you to give your legacy apps a new lease of life. Let us help you transform your enterprise applications and enable a culture of innovation and business agility.

For each idea you have, for any request you place we help you to discover & develop ideal combination of services and solutions

What we do:

Web applications & web sites

• Web Application
• CRM System
• E-Commerce
• Landing page

AR, VR, MR in

• Culture
• Education
• Games
• Events

Machine learning

• Face recognition
• Agent modeling
• Item Recognition
• Human Skeleton Recognition

Technical Support

• High load projects
• Company IT infrastructure
• Web applications
• Servers administration

Technologies we used:

1. Backend: Node.js, Go lang, PHP, Python, C++, .NetCore

2. Frontend: Vue.js, ReactJS, three.js, webGL

3. AR/VR/MR: SparkAR, AR Core, AR Kit, Vuforia, Wikitude, AR Tool kit, Easy AR, MaxST

4. Mobile: Unity3D, React Native, Flutter, Java, Swift

5. Artifical intelligence: Dlib, TensorFlow, OpenCV

6.DevOPS:
-AWS: EC2, S3, ECS, Docker
-BSD: Nginx, Apache, php-fpm, Mysql, MongoDB, PosgreSQL, Squid, Bind, ftpd, ProFTPD, Nagios, NAT, IPFW. PF, kernel NAT, DHCPd, memcached, postfix, VPN, kernel compile.
-Linux(Slackware, Debian, Ubuntu, Ponix, etc.): bash, squid, transparent squid, dns, dhcp, nfs, tfpdboot, PXE, iptables, apache, nginx, ftp, nat, vpn, postfix, kernel compile.
- Windows Server: 2003, 2008, 2012, 2019: AD, RDP, GP, DHCP, DNS, RRAS, VPN, HYPER-V, BACKUP

Software Verde is a custom full-stack software development firm with a dedication to innovative technology.  Composed of engineers devoted to their work, software development is not just our job, it is our passion.  No technology scares us, if we don't know it, we learn it.  We enjoy working with companies through all stages of the development process.  Following an Agile development process, we will guide your project through design, development, and deployment.  And we always offer post production support and maintenance. 

In our years of operation our clients have included both local small businesses as well as international enterprises ranked on the Fortune Global 50.  Our services breadth is quite wide, but the areas we have had the most success include custom business applications, API design, web & mobile applications, blockchain technologies, rapid prototyping, and both augmented & virtual reality.

Since 2008, SolbegSoft LLC has been successfully implementing software projects of any complexity, consulting world-class companies, developing its own solutions and products. SolbegSoft today is more than 400 professionals, 2 development offices in Minsk, 2 offices in the USA and a support center office in Mumbai.

SolbegSoft service offerings encompass all stages of software development — including business analysis, architecture design and prototyping, development, implementation, testing and QA. SolbegSoft focuses on creating solutions for the Oil and Gas industry, FinTech, Insurance, Security, Logistics and Facility Management.  

In 2018, SolbegSoft became a partner of Helmes, one of the largest IT companies in Europe. As a result, the total employees’ number of the group of companies is more than 800 people. Among the clients of the associated company are ServiceChannel,  Kuehne and Nagel, Telia, IMAX.

As an end-to-end IT solutions provider, we transform the corporate client's ideas into a stunning app since inception. We have assisted many startups and SMEs to grow by developing advanced technology solutions in the domains of mobile app, web, eCommerce, and IoT app development. Our in-house teams of professionals are well-versed in using the cutting-edge tools for developing high-quality customized IT solutions. Headquartered in one of the most happening cities of India, Ahmedabad, we have an office at Delmar, USA for serving the international clients more effectively. Our approach to embracing emerging technologies like IoT, AR, VR, and AI have enabled us to provide futuristic app solutions in a cost-effective way. Quality-driven mobile app development for meeting the changing business requirements is our forte. Our array of services includes: Internet of Things- IoT, Enterprise Solutions, Mobile App development, AI App Development, Blockchain App Development

Solution Analysts is one of the top-notch IT solutions providers in USA and India. Initiating operations as a mobile app development company in 2011, we have set many milestones while gaining fame as a leading technology partner for startups, SMEs and big enterprises alike. We have embraced technological advancements in emerging technologies including AI, AR, VR, IoT, and blockchain to serve the global corporate clients with high-quality technological solutions in a cost-effective way.

Whether you need custom-tailed e-commerce systems, innovative social networks, event management systems, fintech application, or a new CRM… whatever, our team can deliver a world-class product quickly, affordably, and in a way that addresses your business challenges.

SovTech is an end-to-end custom software development company that designs, builds, deploys and maintains mobile and web applications. This helps start-ups and corporates like you start, run and grow WORLD-CLASS businesses.

Being ahead of the technology curve is at our core. We work hard to acquire and develop outstanding talent and choose our partners carefully.

SPARK helps you launch a custom business tool you will be PROUD of! Our proven process helps match your business goals and budget with the experts needed to deliver. Reach out to SPARK to create your custom product or business workflow that will help your business thrive at the intersection of innovative and practical.

We are a business-first team that creates custom digital solutions for forward-thinking companies. We help our clients translate complex business requirements into simple, user-friendly systems and tools. We are experts in software development and design. We've made construction safer, facilities smarter, healthcare accessible, field workers connected, and manufacturing more efficient. (Just to name a few.) SPARK has helped over 150 unique clients become technology leaders (without having to hire it all in-house)!

Our small, laser focused team has successfully journeyed with hundreds of clients through the precarious lands of software development. We are meticulous in our preparation and highly-professional in our delivery. No matter the project, you can rely on Sparkfish to help your business towards optimal and innovative web and mobile solutions.

We build business solutions and integrations into your website, to leverage the power of digital and automation, reducing administration & costs, improving data insights and accuracy and improving your conversion and profits. Through web development and application development services, we deliver software solutions around web technologies.

We're expert app builders. We know good architecture and we know why it matters. Outsource your whole project to us or use us to augment your existing dev team. We love .NET, SQL Server, Azure Cloud and DevOps, and Vue.js.

Stackfee is a software development agency. We develop web, mobile, native applications and business intelligence solutions for businesses of all sizes

Software Development Agency - Stackfee
Stackfee is a software development agency. We develop web, mobile, native applications and business intelligence solutions for businesses

Stambol is a Virtual Reality & Augmented Reality studio specializing in hyper-realistic immersive experiences. We employ a team of dedicated artists, designers and engineers with a proven track record of success. Our engineers have developed award-winning games at Electronic Arts and Ubisoft, and built core graphics technologies at Microsoft. Our artists and designers have collaborated with leaders in architecture, real estate development, and construction industries.

We create stunning, inspiring, and memorable virtual experiences. Starting with our incredibly real architectural renderings, 3D illustrations, models, and animations, Stambol has developed expertise in Virtual Reality (VR) and Augmented Reality (AR) that can service any need for visual communication. We provide the best experience for our clients by blurring the boundaries between art and engineering. 

Star Knowledge is a results-driven global professional services company, providing a broad range of services and solutions in software, electrical and mechanical engineering and business consulting to help customers solve challenging and complex strategic business problems and create value. Our services encompass commercial practices from industries including high-tech, banking, retail, manufacturing, healthcare, media and entertainment and the public sector, with proven execution and project management skills enabling successful deployment of quality customer deliverables. Star Knowledge supports customers with highly experienced and skilled technical and business consultants and is widely recognized for its holistic approach in services delivery and support.  

We take overall responsibility for your digital development. From concept to launch and further development, we are your right partner. We bring highly converting E-commerce solutions come to life. Tailored to your needs, be it B2B or B2C.