Top C# Custom Software Development Companies in United States

We craft individually tailored solutions and partner with clients on everything from large-scale application delivery with full teams to smaller projects supported by specialized experts.

At Traction, we help clients leverage the power of Office 365, Microsoft Dynamics 365, Salesforce.com, Odoo ERP, and Power BI to provide manufacturers, distributors, and service organizations with the most advanced pre-integrated set of solutions on the market.

Trajectus blends good Engineering Principles, a sound Project Management Methodology, and a diverse team of technologists to form solutions to meet the needs of our clients. Our project methodology enables us to leverage a distributed agile software development environment. The Trajectus team is comprised of experienced Architects, Designers, Project Managers, Business Analysts, and experienced Business Development personnel. Our team members possess a diverse set of technology skills and we have an extensive network of specialists. Team members are located throughout the US and our Offshore Delivery center is based in Hyderabad, India. Our methodology enables us to utilize US resources to engage in an in-depth collaborative development process while leveraging skilled resources to minimize distributed risks, bringing affordability to our clients.

Trajectus is the best software development company in New York that delivers High Quality, Cost Effective software solutions efficiently that meets our clients business goals. Our goal is to work with our customers to understand your business objectives, engineer a proficient platform, create a beautiful interface, and create clean code. The key to success is ensuring the project's core business needs are met. We’ll work with you to ensure there is a clear understanding of the core business needs.We approach software challenges with the idea of engineering the best solution, utilizing the best technologies, to solve a business goal. You’ll often find our competitors have assembled talent that corresponds to the preferred language of its leadership or aligns itself with a certain technology stack. We approach each business challenge or partnership as a unique opportunity. As a true engineering company, it’s important to look at all the potential technologies in the market.

We strive to develop and maintain ourselves as a top-notch organization that promotes employee empowerment and focuses on customer retention with confidence and quality.

Treeline was founded in December of 2004 in Lake Tahoe, Calif., with the primary objective of creating interactive rich media resources for destination resorts. Since then, we've migrated to San Diego, becoming an industry leader in web and mobile application development.

TRG Digital is a full-service digital marketing and innovation firm. By leveraging their capabilities in technology, engineering, marketing, user experiences, data science,  cloud computing, artificial intelligence, and machine learning, TRG Digital is a strategic partner helping organizations craft digital solutions that accelerate business growth.

Tricension is a business advisory and technology solutions firm based in Kansas City, MO. The founders of Tricension have over 70 years of combined solutions design and development experience in large and mid-market organizations. Since founding Tricension in early 2008, the team has delivered over 180 software design and development solutions.

TrinSoft is a provider of high-end enterprise class solutions at a price point for the mid-market. As a trusted partner, we help companies automate processes and transactions to be more efficient and save money.  TrinSoft's solutions are based on the Microsoft Dynamics platform and our own workflow, document management, and automation solution, as well as unique, custom applications.

At Truefit, we serve clients, from entrepreneurs to executives, who need to create new software products that delight their users and grow their business. 

We believe that experienced, cross-functional teams are the best way to design and build successful products.

Client Testimony

“In my 35 years, I have never seen a beta that was this mature and ready.” ~ A cybersecurity manager for a large European utility company after participating in the initial pilot testing.

“[Truefit’s] cross-functional expertise in design, engineering, quality assurance and project management is unmatched. The Truefit team truly cares about delighting customers.” ~ Patrick O’Leary, Vice President, Connors Group

"Truefit's research teams observe the complexity of our operations without disrupting business, and synthesize their findings into thought-provoking insights for our innovation leaders." ~Design Manager, McDonald's

Companies work with Truefit when they need a proven team who can…

• Validate a product concept
• Collaborate on a practical product strategy
• Get a product to  market faster
• Take an existing product to the next level
• Modernize their technology & architecture
• Be a trusted, outside advisor

We are a dedicated team in deploying mobile apps, Blockchain technology, IoT, AR-VR solutions, and many more. Our technology experts have unique solutions in offering alluring designs like UI/UX for app development and developing the app quickly for enterprises to kick start into the online industry. In brief, our app development firm provides the best suited multiple solutions based on the on-demand apps, along with promising amenities that will enrich your app to be top-notch in the competitive marketplace. Our renowned app always sticks with the latest trends and, therefore, is well versed in offering robust NFT marketplace development to attract crypto enthusiasts. Once our team gathers all the requirements needed for the app development process, we incorporate them with essential tools. Therefore, enabling the apps to be launched on the App Store and Play stores. Hold on, in addition to these, we also provide constant customer support and not abruptly pausing after developing an app.

Uhray is not just a team of professional programmers and developers - we create advanced solutions by cooperating efficiently with our clients. Every stage of the development process is a tandem between Uhray and the business - we discuss all the details and nuances of the project by email or in any other convenient way. Together we bring the boldest ideas to life, whether it’s a web/mobile app or other software solutions.

Our team of experts has been offering software development services for over 8 years. We have our offices in Kansas City (Missouri) and Boston (Massachusetts). Since 2014, we have successfully implemented over 100 projects for businesses in different business areas. The list of our clients includes companies like CDLlife, LittleHoots, University of Notre Dame, ASU Alumni, NextHire, Aunalytics, and many others beyond the U.S.

Thanks to our tenacity and hard work, we've been noticed by giants like TechCrunch, The Wall Street Journal, GovTech, Good Morning America, Huffington Post, CIO Review, and ABC News.

As for our values, at Uhray, we always strive to empower entrepreneurs by launching innovative software products. That's why we approach each project carefully in a systematic way as follows:

• We always test business ideas at the initial stage to set the right goals and objectives, determining the values and functions of the future product;
• Our specialists have different jobs but all of them cooperate closely with the business to provide an intuitive and engaging user interface;
• We choose layouts that will fit all parameters of the business. This is where appearance and convenience are especially important. Thus, we work hard on the color palettes, fonts, videos, animations, and other elements;
• We always pay special attention when it comes to coding so that you receive a reliable and effective solution that will reflect the vision of your core business values;
• To make sure that our solutions are 200% ready, we always test them and make all the necessary adjustments before the release.

You may wonder what happens after the app launch? Next, we provide free tech support for 30 days. To provide a better understanding of who uses this or that app, each of our solutions also has an in-built analytics dashboard.

You can visit Uhray’s website to see what projects our experts have already created for various business niches. Also, get to know team members that will work on your project on our official LinkedIn page.

We offer the following services:

• Website building;
• Web app development;
• Mobile app development;
• Desktop app development;
• API interfaces, and much more.

The technologies we use are Node.js & Express.js, MongoDB with Mongoose, REST API, HTML, CSS, JavaScript, PhoneGap, Cordova, Git, and GitHub. And here are some code libraries and web template systems that we use in our work: Ractive.js, Moustache, Sass, NPM, Bower, Autoprefixer, and more.

The most frequent question we hear from our clients is about how long the project will take to complete. Most of them take 2-3 months. The cost of development, obviously, depends on several factors, with business requirements and overall project complexity being among the main ones.

You can give us a call to discuss your idea and all the details today.

We’re not just a bunch of Dallas app developers, we deliver extraordinary interactions that engage and retain users in one-of-a-kind experiences. 

Unosquare treats customer projects as if they were their own. That's exactly why their software solutions are rightfully considered to be excellent.

The development quality is ensured by a large number of experts in the company, including software engineers, test automation engineers, QA engineers, talent acquisition specialists, tech leads, project managers, and many others. Unisquare's team consists of more than 600 employees, and you can get acquainted with each of them on the official LinkedIn page.

Unosquare mainly provides services to businesses in finance and healthcare. Their key clients include Vesta, Harvard Business Publishing, Foundation Medicine, Edwards Lifesciences, and Axis Bank.

On the website, you can find a detailed portfolio that will help you determine if Unosquare's services can be useful to your business. And if you are ready to discuss your idea or project with the team, simply let them know about it by sending an email.

What professional services does Unosquare provide? Local US businesses can surely rely on Unosquare in terms of agile software development, technology project consulting, industry expertise, digital transformation strategy development, and more.

When on the website, click on "Store" to see their favorite and most useful projects and off-the-shelf solutions. What's more, anyone can download a free trial version right now to test Unosquare’s software.

We are a Cincinnati based company helping clients in manufacturing, engineering,
and services drive business process improvement and digital transformation with
simple, cost-effective, and high performance custom software system development.

V-Soft, Inc. is a leading software development company that specializes in high-end Mobile Application Development. V-Soft’s mobile application development & mobile platform expertise have provided great solutions to our global customer base for many years now and delivering 150+ mobile projects. They are committed to providing cutting-edge mobile apps and smart-phone device technology at affordable costs to our global clients. V-Soft has gathered a team of highly qualified mobile application developers who work on all existing and emerging mobile platforms for mobile apps development. V-Soft has expertise in mobile application development on all popular mobile platforms like Android, iPhone, BlackBerry, Windows Embedded CE, Embedded Linux, Mac X, and Symbian.

We at ValarPro believe in empowering people by giving them access to information in the most clear and conveniant way possible.  The growth in smart phone usage has allowed people the means to acquire information.  We help businesses who prioritize their customers above anything else to provide them the information they need. By doing this we help businsesses develop their relationships with their customers, improve customer loyalty and customer retention.

Vander Group offers custom end-to-end eCommerce solutions that rely on data-driven design processes, diversified expertise, and proven,scalable technology. Whether our clients are enterprise B2B, direct-to-consumer brands, or integrated partners, we provide best in class services for all aspects of eCommerce.

We are a professional company providing Website Design, Mobile App Development, and other software related development. We build both Native and Hybrid apps as well as both Business Websites and Web Applications. Our mission is Hand Crafting Digital Products to Engineer Growth for Leading Businesses.

Velvetech LLC is an award-winning custom software development and consulting company from Chicago, IL that facilitates innovation and growth in the mid-size market. At Velvetech, we supply our clients and partners with the most effective and advanced information technologies. Relying on our thought leadership, they get solutions that enable rapid implementation of their development strategies and lead to superior business results.  

• Custom Software Programming
• Enterprise Systems Integration
• Web & Mobile Apps Development
• Business Process Automation
• CRM Implementation
• Call Center Implementation
• Blockchain Development
• AI and Machine Learning
• IoT
• Hardware Engineering
• Technology Consulting
• Managed IT Services

Being enthusiastic about new challenges, Velvetech has gained extensive experience in various industries including healthcare, manufacturing, distribution, telecommunications, financial services, education, and technology. So if you are looking for a highly qualified partner with a proven track record of success, our well trained and experienced Software Engineers, Business Analysts, QA Specialists, and Project Managers are here to help. We look forward to turning your ideas into powerful solutions for your business!

We build our customers'​ key web and mobile product applications. With a valuable combination of industry experience & technical expertise, VCG applies the latest proven technologies to meet our clients’ current objectives of creating world-class Internet sites & mobile applications

Venture Aviator offers highly customized IT software solutions – we have the agility to grow a new startup and the capacity to scale a growth company. We have a talented and experienced team of designers, software technologists and project delivery managers spanning the full range of leading development technologies and methodologies in web, mobile and enterprise applications. Venture Aviator creates a diverse range of leading-edge web, mobile , blockchain development, and enterprise applications to meet the fast-changing needs of our clients in the digital marketplace.

Venture Aviator is an innovative software development company that helps early stage and enterprise companies build and execute their vision. Venture Aviator has capabilities in Web Development, Mobile Development, Blockchain Development, Full-Service Initial Coin Offering (ICO) advisory, Cryptocurrency launches, and Artificial Intelligence. Venture Aviator was recently named as one of the Top Custom Software Development Companies by Clutch for 2017. Clients range from Fortune 500 companies like Allianz and Cisco to award-winning startups. Our team brings a unique combination of technology expertise, design and engineering talent, strategic business insight and new venture acceleration experience, coupled with an extensive global network of trusted relationships and partners to help our clients achieve rapid growth and build their products cost effectively.

VerveLogic is one of the top-notch mobile app development companies in USA with experience of more than a decade.

VerveLogic is one of the top-notch mobile app development companies in USA with experience of more than a decade. We serve our customer as an IT outsourcing company as well and have services like iOS and Android mobile app development, SEO, SMO, Logo designing and much more.

We make use of the latest tools and techniques to deliver feature-rich mobile apps. Our team of expert mobile app developers deliver products that match industry standards. With a support team available 24/7, we aim at delivering 100% client satisfaction.

Every client engagement is a highly collaborative partnership. We work fast, and it’s crucial to have consistent check-ins with our clients and each other to make sure we are aligned. We've tested many different collaboration tools, and we only use the best of the best.

Very is a fully-distributed IoT engineering firm, partnering with our clients to build systems for smart manufacturing, smart energy & utilities, consumer electronics, and connected wellness. Our process is designed to navigate complexity and de-risk your IoT project. Agility, expertise, and true partnership are key. This applies to every aspect of our operations and every element of every project we execute for our clients. On this page, you will find details of the processes we have put into place to deliver at the highest level across our IoT expertise. We have a set of clear-cut procedures and best practices in place across Very that guide how we engage. Built on clear communication and trusted partnership, we cultivate a culture of mutual respect and shared success with clients and with each other.

We approach each software development or UI / UX design project with a full service mindset. Collaboration between experts of a wide variety of fields usually leads to pretty great results. We design and develop web services, mobile apps, and embedded systems.

Vincit is the only custom software company who offers its clients a 100% Satisfaction Guarantee. Our 500-employee design, software and strategy company is located in Orange County, Santa Monica and Palo Alto in California, and in Finland. We engineer Mobile Apps, Web Services, and Embedded Systems, and work with companies like GE, Logitech, Nokia, The New York Times, and Yamaha. Ranked first in Europe in the Great Place to Work study, and on Inc. Magazine's Best Workplaces List 2019. We believe that mondays shouldn't suck, that flat company hierarchy is better, and that the best measure of success is client and employee happiness.

We Transform companies, we bring your idea to Life. We Transform companies, we bring your idea to Life. Our marketing experts layout the newest trends in website UX and UI design. Our team uses conceptual wireframing to present a high-level concept of information architecture and interaction design

Vizuri serves as a strategic partner and authorized reseller for a select group of leading enterprise software vendors and cloud service providers.

Volya Software Corporation is a software development company that specializes in developing custom solutions based on heavy-duty mathematical algorithms for creating Computer Vision, Facial/Object Recognition, CAD/CAM, and 3D-visualization applications. We have the experience of implementing projects in these areas for well-known manufacturing and other companies.

We give on the web and portable application improvement administrations. In an enchanted formula, we blend innovativeness, client sympathy, mastery, versatility, readiness, adaptability, and speed in our improvement strategy.

We work on Following Business niche:- Ecommerce-Shopping, Financial businesses, Tour-Travel-Transportation, Booking Engines, Entertainment Industry, Social networking community portal, Real estate businesses, Healthcare Medical Industry - Doctors Clinics, Orhtopaedic hospitals, Education Training-Colleges, Schools, and Institutes. We Build Custom-Coded ecommerce Websites in the Following PHP Technology:- ExpressionEngine, CraftCMS, WordPress, WooCommerce, Shopify, Magento 2. We also build Custom-Coded Web Apps using these PHP technologies :- Open Source Platforms:- Drupal, Opencart, OsCommerce, Modx, CorePHP, PHP Frameworks:- CakePHP, CodeIgniter, YII Framework, Zend, Framewor, Laravel, Symfony, Hire a team of Web & Graphic Design, AJAX, CSS, HTML5, JavaScript, and node.js from W3care Technologies Pvt. Ltd.

Since our founding in 2000, Endertech has been listening to clients’ goals, analyzing existing systems… and then designing, developing, and supporting web-based software applications that just work. Some of our software solutions have been continuously servicing our clients’ operational needs for over 15 years now!

We Write Code is a software development company that helps clients bring their ideas to life. Our team is passionate about creating and implementing technical solutions that enable companies to be successful. We believe good development is interactive, flexible, and highly personalized. That's why our team is agile and works with clearly defined checkpoints and frequent iterations to provide feedback and added value along the way. Based in Des Moines, Iowa, We Write Code partners with companies both big and small. From large projects for Fortune 500 companies to application getting startups off the ground, our team excels at helping clients build software for their unique budget and needs. We Write Code has experience working with clients internationally in a variety of fields, including agriculture, environmental services, finance, and more.

Webnexs innovations offer industry-best eCommerce solutions that help outbreak market competition and outperform sales expectations. Our robust solution provides hassles to manage inventory, status updates, and shipment tracking. Our industry expert developers understand the nature of your business and requirements before initiating the development. Let's connect to develop a user-centric, tailor-made eCommerce platform for your business.

Webnexs innovations offer industry-best eCommerce solutions that help outbreak market competition and outperform sales expectations. Our robust solution provides hassles to manage inventory, status updates, and shipment tracking. Our industry expert developers understand the nature of your business and requirements before initiating the development. Let's connect to develop a user-centric, tailor-made eCommerce platform for your business.

At Website Pandas, we offer PHP developers, programmers as per the specific needs of yours. Our PHP developers have experience in various industries that helps them to provide industry-specific PHP solutions. Hire our certified PHP experts who are flexible with modern development methodologies streamlined to deliver best in class development solutions.

At Website Pandas, we offer PHP developers, programmers as per the specific needs of yours. Our PHP developers have experience in various industries that helps them to provide industry-specific PHP solutions. Hire our certified PHP experts who are flexible with modern development methodologies streamlined to deliver best in class development solutions.

wedowork is a creatively driven boutique tech agency based in Idaho Falls, Idaho. We are a veteran team of dedicated professionals passionate about solving problems through creativity & development. We design effective creative solutions and build responsive, agile platforms & sites. We help our clients be great at what they do by being great at what we do. That means bringing a unique vision to every project, assembling the right team for each task, and always communicating effectively.

WingWeb focuses on extracting true business needs and applying those needs to workflow and logistics systems. 

We offer Advanced Solutions Architecture services:

Software Architecture
Software Design
Solution Work Flow
Integration Design

We perform Business Requirements Analysis with deliverables that include:

Problem Identification
Problem Documentation
Project Scoping
Requirements Development

Have a great idea for a project, or need help with an existing web application? Our experienced web developers can help you build elegant and intuitive web solutions using Ruby on Rails, Node.js, GraphQL, React JS, and more. Simple and intuitive or extensive and complex - our development team awaits your challenge.

WolfeLink IT consultants define, design and execute custom strategies that drive your business growth, reduce costs and create new revenue streams. We take a “big picture” approach, working with you to learn your business vision and goals, IT environment, Systems integrations, skill requirements and policies. 

World Web Technology is the Web & Mobile App Development Company based in India with offices in the USA and Argentina. We have experience of 10+ years in the development field. The Company offers web & Mobile application Development along with Digital Marketing, E-commerce Development, Web Designing, Plugin Development, and many more. At World Web Technology, we follow the customer-centric approach and always go above and beyond to serve our clients. To date, we have delivered 800+ projects to 1,500+ clients across 20+ nations. With our strategic approach, we have proven to be trustworthy, affordable, and prime development partners for any agency, business, or startup. We develop distinctive digital solutions which ensure improve efficiency and competitive advantage for your business and engage your end-users. If you have any requirements about web & mobile app development or web design, Feel free to contact us at [email protected]

XDuce has been recognized as an Inc 5000 company with Goldman Sachs certifying us as one of 10,000 Small Businesses Entrepreneur Program. Over the past 15 years, we have collaborated with start-ups, mid-market, ISVs, and enterprises alike.

Founded in 2006 and headquartered in New Jersey, XDuce is an Award-Winning full-service Software Engineering, Digital Transformation, and QE partner specializing in the development of innovative Cloud, Web, and Mobile applications. With 375+ seasoned IT professionals, we help our clients and partners at each stage of the software product development cycle: from ideation to an MVP, to design, developing, automating, and testing the product, and finally, scaling. Let's build something together!

What makes Zazz unique is that our experts know exactly how to use advanced tools and technologies like the Internet of Things, artificial intelligence (AI), blockchain, and more.

Our team offers deep expertise, a competent approach to the development process, and revolutionary technologies. This is why we at Zazz can guarantee that you will get a dynamic app that will overcome your expectations.

Zazz is a preeminent U.S. mobile app development company that offers innovative solutions for various business niches. We have been repeatedly awarded as the best app development agency (e.g. DNA PARIS DESIGN AWARD, 2020, DESIGN INTELLIGENCE AWARD, CHINA - 2019) and nominated for the best software development company in 2017, 2018, and 2019.

At Zazz, we offer quality services to businesses in the United States and around the world that want to expand through the implementation of digital solutions. Meet our team on LinkedIn and discover the power of Zazz.

We provide solutions for various industries including games, healthcare, social networks, entertainment, EdTech, eCommerce, SaaS, finance, restaurant business, and more.

On our website, you can see what projects we have recently implemented. Among them, you will find WSPS (an app for security services), Alpha Match (a platform where consumers can search for products, services, or events related to pets in the local and international arena), and more.

Social networks are a particularly popular and promising development direction. No, we don't offer new Instagram here but solutions that will greatly expand your audience.

Our team knows the ins and outs of developing social media apps with a simple and user-friendly interface, secure login, registration, and more.

Our team has optimized all development processes to increase their efficiency. Thus, first of all, we provide consultations, where our analysts and developers evaluate, analyze, and explore ways to create a product. Then we move on to the following stages:

• Planning. Our specialists, having defined the business goals of the client, prepare a blueprint with an outlined project plan;
• Prototyping. At this stage, the team builds concepts and defines network layers, databases, and more;
• Development. This stage involves close cooperation with the client so that the product can be implemented in accordance with all the requirements. That's why email correspondence is quite common;
• Warranty. Our professional testers assess the app's performance and determine what needs to be improved;
• Delivery. After the deployment, our company provides tech support and maintenance.